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  • 1.
    Abdel-Aziz, Mahmoud I.
    et al.
    Dept of Respiratory Medicine, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands; Dept of Clinical Pharmacy, Faculty of Pharmacy, Assiut University, Assiut, Egypt.
    Vijverberg, Susanne J.H.
    Dept of Respiratory Medicine, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands.
    Neerincx, Anne H.
    Dept of Respiratory Medicine, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands.
    Brinkman, Paul
    Dept of Respiratory Medicine, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands.
    Wagener, Ariane H.
    Dept of Respiratory Medicine, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands.
    Riley, John H.
    Respiratory Therapeutic Unit, GlaxoSmithKline, Stockley Park, United Kingdom.
    Sousa, Ana R.
    Respiratory Therapeutic Unit, GlaxoSmithKline, Stockley Park, United Kingdom.
    Bates, Stewart
    Respiratory Therapeutic Unit, GlaxoSmithKline, Stockley Park, United Kingdom.
    Wagers, Scott S.
    BioSci Consulting, Maasmechelen, Belgium.
    De Meulder, Bertrand
    European Institute for Systems Biology and Medicine, CIRI UMR5308, CNRS-ENS-UCBLINSERM, Lyon, France.
    Auffray, Charles
    European Institute for Systems Biology and Medicine, CIRI UMR5308, CNRS-ENS-UCBLINSERM, Lyon, France.
    Wheelock, Åsa M.
    Respiratory Medicine Unit, Dept of Medicine and Center for Molecular Medicine, Karolinska Institutet, Stockholm, Sweden; Dept of Respiratory Medicine and Allergy, Karolinska University Hospital, Stockholm, Sweden.
    Bansal, Aruna T.
    Acclarogen Ltd, St John’s Innovation Centre, Cambridge, United Kingdom.
    Caruso, Massimo
    Dept of Biomedical and Biotechnological Sciences, University of Catania, Catania, Italy.
    Chanez, Pascal
    Département des Maladies Respiratoires APHM, U1067 INSERM, Aix Marseille Université Marseille, Marseille, France.
    Uddin, Mohib
    AstraZeneca BioPharmaceuticals R&D, Gothenburg, Sweden.
    Corfield, Julie
    AstraZeneca R&D, Molndal, Sweden; Areteva R&D, Nottingham, United Kingdom.
    Horvath, Ildiko
    Dept of Public Health, Semmelweis University, National Koranyi Institute for Pulmonology, Budapest, Hungary.
    Krug, Norbert
    Fraunhofer Institute for Toxicology and Experimental Medicine Hannover, Hannover, Germany.
    Musial, Jacek
    Dept of Medicine, Jagiellonian University Medical College, Krakow, Poland.
    Sun, Kai
    Data Science Institute, South Kensington Campus, Imperial College London, London, United Kingdom.
    Shaw, Dominick E.
    Respiratory Research Unit, University of Nottingham, Nottingham, United Kingdom.
    Sandström, Thomas
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Avdelningen för medicin.
    Montuschi, Paolo
    Pharmacology, Faculty of Medicine, Catholic University of the Sacred Heart, Rome, Italy.
    Fowler, Stephen J.
    Division of Infection, Immunity and Respiratory Medicine, School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre and NIHR Biomedical Research Centre, Manchester University Hospitals NHS Foundation Trust, Manchester, United Kingdom.
    Lutter, René
    Dept of Respiratory Medicine, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands; Dept of Experimental Immunology, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands.
    Djukanovic, Ratko
    NIHR Southampton Respiratory Biomedical Research Unit, Clinical and Experimental Sciences, and Human Development and Health, University of Southampton, Southampton, United Kingdom.
    Howarth, Peter
    NIHR Southampton Respiratory Biomedical Research Unit, Clinical and Experimental Sciences, and Human Development and Health, University of Southampton, Southampton, United Kingdom.
    Skipp, Paul
    Centre for Proteomic Research, Biological Sciences, University of Southampton, Southampton, United Kingdom.
    Sanak, Marek
    Dept of Internal Medicine, Jagiellonian University Medical College, Krakow, Poland.
    Adcock, Ian M.
    National Heart and Lung Institute, Imperial College London, Royal Brompton and Harefield NHS Trust, London, United Kingdom.
    Chung, Kian Fan
    National Heart and Lung Institute, Imperial College London, Royal Brompton and Harefield NHS Trust, London, United Kingdom.
    Sterk, Peter J.
    Dept of Respiratory Medicine, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands.
    Kraneveld, Aletta D.
    Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Faculty of Science, Utrecht University, Utrecht, Netherlands.
    Maitland-Van der Zee, Anke H.
    Dept of Respiratory Medicine, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands; Dept of Pediatric Respiratory Medicine, Emma Children’s Hospital, Amsterdam UMC, Amsterdam, Netherlands.
    A multi-omics approach to delineate sputum microbiome-associated asthma inflammatory phenotypes2022Ingår i: European Respiratory Journal, ISSN 0903-1936, E-ISSN 1399-3003, Vol. 59, nr 1, artikel-id 2102603Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    A multi-omics approach revealed the underlying biological pathways in the microbiome-driven severe asthma phenotypes. This may help to elucidate new leads for treatment development, particularly for the therapeutically challenging neutrophilic asthma.

  • 2.
    Accordini, Simone
    et al.
    Unit of Epidemiology and Medical Statistics, Dept of Diagnostics and Public Health, University of Verona, Verona, Italy; Equal contribution as first authors.
    Calciano, Lucia
    Unit of Epidemiology and Medical Statistics, Dept of Diagnostics and Public Health, University of Verona, Verona, Italy; Equal contribution as first authors.
    Johannessen, Ane
    Centre for International Health, Dept of Global Public Health and Primary Care, University of Bergen, Bergen, Norway.
    Benediktsdóttir, Bryndis
    Faculty of Medicine, University of Iceland, Reykjavik, Iceland.
    Bertelsen, Randi Jacobsen
    Dept of Clinical Science, University of Bergen, Bergen, Norway.
    Bråbäck, Lennart
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Avdelningen för hållbar hälsa.
    Dharmage, Shyamali C.
    Allergy and Lung Health Unit, School of Population and Global Health, University of Melbourne, Melbourne, Australia.
    Forsberg, Bertil
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Avdelningen för hållbar hälsa.
    Gómez Real, Francisco
    Dept of Clinical Science, University of Bergen, Bergen, Norway; Dept of Obstetrics and Gynecology, Haukeland University Hospital, Bergen, Norway.
    Holloway, John W.
    Human Development and Health, Faculty of Medicine, University of Southampton, Southampton, United Kingdom.
    Holm, Mathias
    Occupational and Environmental Medicine, School of Public Health and Community Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.
    Janson, Christer
    Dept of Medical Sciences: Respiratory, Allergy and Sleep Research, Uppsala University, Uppsala, Sweden.
    Jõgi, Nils O.
    Dept of Clinical Science, University of Bergen, Bergen, Norway; Lung Clinic, Tartu University Hospital, Tartu, Estonia.
    Jõgi, Rain
    Lung Clinic, Tartu University Hospital, Tartu, Estonia.
    Malinovschi, Andrei
    Dept of Medical Sciences: Clinical Physiology, Uppsala University, Uppsala, Sweden.
    Marcon, Alessandro
    Unit of Epidemiology and Medical Statistics, Dept of Diagnostics and Public Health, University of Verona, Verona, Italy.
    Martínez-Moratalla Rovira, Jesús
    Servicio de Neumología, Complejo Hospitalario Universitario de Albacete (CHUA), Servicio de Salud de Castilla-La Mancha (SESCAM), Albacete, Spain.
    Sánchez-Ramos, José Luis
    Dept of Nursing, University of Huelva, Huelva, Spain.
    Schlünssen, Vivi
    Dept of Public Health, Aarhus University, Aarhus, Denmark.
    Torén, Kjell
    Occupational and Environmental Medicine, School of Public Health and Community Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.
    Jarvis, Deborah
    Faculty of Medicine, National Heart and Lung Institute, Imperial College London, London, United Kingdom; MRC-PHE Centre for Environment and Health, Imperial College London, London, United Kingdom; Equal contribution as last authors.
    Svanes, Cecilie
    Centre for International Health, Dept of Global Public Health and Primary Care, University of Bergen, Bergen, Norway; Equal contribution as last authors.
    Prenatal and prepubertal exposures to tobacco smoke in men may cause lower lung function in future offspring: a three-generation study using a causal modelling approach2021Ingår i: European Respiratory Journal, ISSN 0903-1936, E-ISSN 1399-3003, Vol. 58, nr 4, artikel-id 2002791Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Mechanistic research suggests that lifestyle and environmental factors impact respiratory health across generations by epigenetic changes transmitted through male germ cells. Evidence from studies on humans is very limited.We investigated multigeneration causal associations to estimate the causal effects of tobacco smoking on lung function within the paternal line. We analysed data from 383 adult offspring (age 18-47 years; 52.0% female) and their 274 fathers, who had participated in the European Community Respiratory Health Survey (ECRHS)/Respiratory Health in Northern Europe, Spain and Australia (RHINESSA) generation study and had provided valid measures of pre-bronchodilator lung function. Two counterfactual-based, multilevel mediation models were developed with: paternal grandmothers' smoking in pregnancy and fathers' smoking initiation in prepuberty as exposures; fathers' forced expiratory volume in 1 s (FEV1) and forced vital capacity (FVC), or FEV1/FVC z-scores as potential mediators (proxies of unobserved biological mechanisms that are true mediators); and offspring's FEV1 and FVC, or FEV1/FVC z-scores as outcomes. All effects were summarised as differences (Δ) in expected z-scores related to fathers' and grandmothers' smoking history.Fathers' smoking initiation in prepuberty had a negative direct effect on both offspring's FEV1 (Δz-score -0.36, 95% CI -0.63- -0.10) and FVC (-0.50, 95% CI -0.80- -0.20) compared with fathers' never smoking. Paternal grandmothers' smoking in pregnancy had a negative direct effect on fathers' FEV1/FVC (-0.57, 95% CI -1.09- -0.05) and a negative indirect effect on offspring's FEV1/FVC (-0.12, 95% CI -0.21- -0.03) compared with grandmothers' not smoking before fathers' birth nor during fathers' childhood.Fathers' smoking in prepuberty and paternal grandmothers' smoking in pregnancy may cause lower lung function in offspring. Our results support the concept that lifestyle-related exposures during these susceptibility periods influence the health of future generations.

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  • 3. Adam, Martin
    et al.
    Schikowski, Tamara
    Carsin, Anne Elie
    Cai, Yutong
    Jacquemin, Benedicte
    Sanchez, Margaux
    Vierkötter, Andrea
    Marcon, Alessandro
    Keidel, Dirk
    Sugiri, Dorothee
    Al Kanani, Zaina
    Nadif, Rachel
    Siroux, Valérie
    Hardy, Rebecca
    Kuh, Diana
    Rochat, Thierry
    Bridevaux, Pierre-Olivier
    Eeftens, Marloes
    Tsai, Ming-Yi
    Villani, Simona
    Phuleria, Harish Chandra
    Birk, Matthias
    Cyrys, Josef
    Cirach, Marta
    de Nazelle, Audrey
    Nieuwenhuijsen, Mark J
    Forsberg, Bertil
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Yrkes- och miljömedicin.
    de Hoogh, Kees
    Declerq, Christophe
    Bono, Roberto
    Piccioni, Pavilio
    Quass, Ulrich
    Heinrich, Joachim
    Jarvis, Deborah
    Pin, Isabelle
    Beelen, Rob
    Hoek, Gerard
    Brunekreef, Bert
    Schindler, Christian
    Sunyer, Jordi
    Krämer, Ursula
    Kauffmann, Francine
    Hansell, Anna L
    Künzli, Nino
    Probst-Hensch, Nicole
    Adult lung function and long-term air pollution exposure. ESCAPE: a multicentre cohort study and meta-analysis2015Ingår i: European Respiratory Journal, ISSN 0903-1936, E-ISSN 1399-3003, Vol. 41, nr 5, s. 38-50Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    The chronic impact of ambient air pollutants on lung function in adults is not fully understood. The objective of this study was to investigate the association of long-term exposure to ambient air pollution with lung function in adult participants from five cohorts in the European Study of Cohorts for Air Pollution Effects (ESCAPE). Residential exposure to nitrogen oxides (NO2, NOx) and particulate matter (PM) was modelled and traffic indicators were assessed in a standardised manner. The spirometric parameters forced expiratory volume in 1 s (FEV1) and forced vital capacity (FVC) from 7613 subjects were considered as outcomes. Cohort-specific results were combined using meta-analysis. We did not observe an association of air pollution with longitudinal change in lung function, but we observed that a 10 μg·m(-3) increase in NO2 exposure was associated with lower levels of FEV1 (-14.0 mL, 95%CI -25.8- -2.1) and FVC (-14.9 mL, 95% CI -28.7- -1.1). An increase of 10 μg·m(-3) in PM10, but not other PM metrics (PM2.5, coarse fraction of PM, PM absorbance), was associated with a lower level of FEV1 (-44.6 mL, 95% CI -85.4- -3.8) and FVC (-59.0 mL, 95% CI -112.3- -5.6). The associations were particularly strong in obese persons. This study adds to the evidence for an adverse association of ambient air pollution with lung function in adults at very low levels in Europe.

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  • 4. Alahmadi, Fahad
    et al.
    Simpson, Andrew
    Gomez, Christina
    Wheelock, Craig
    Shaw, Dominick
    Fleming, Louise
    Roberts, Graham
    Riley, John
    Bates, Stewart
    Sousa, Ana R.
    Knowles, Richard
    Bansal, Aruna
    Corfield, Julie
    Pandis, Ioannis
    Sun, Kai
    Bakke, Per
    Caruso, Massimo
    Chanez, Pascal
    Dahlen, Babro
    Horvath, Ildiko
    Krug, Norbert
    Montuschi, Paolo
    Sandström, Thomas
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin.
    Singer, Florian
    Wagers, Scott
    Adcock, Ian
    Djukanovic, Ratko
    Chung, Kian
    Sterk, Peter J.
    Dahlen, Sven-Erik
    Fowler, Stephen J.
    Measures of adherence in patients with severe asthma prescribed systemic steroids in the U-BIOPRED cohort2018Ingår i: European Respiratory Journal, ISSN 0903-1936, E-ISSN 1399-3003, Vol. 52Artikel i tidskrift (Övrigt vetenskapligt)
    Abstract [en]

    Introduction: Rates of sub-optimal adherence to medications in asthma range up to 70%; the impact in severe asthma is likely to be particularly high. We measured self-reported adherence in participants in the U-BIOPRED cohort prescribed daily prednisolone using the Medication Adherence Response Scale (MARS), and compared to measured urinary prednisolone and metabolites in order to determine: 1. the prevalence of suboptimal adherence by each method; 2. the ability of MARS to predict urinary steroid detection.

    Methods: Participants completed the MARS, and/or provided urine samples (analysed for prednisolone and metabolites by LCMS). The performance characteristics of the MARS predicting undetected urinary steroid were calculated in the subgroup having both tests.

    Results: 181 participants currently taking regular oral corticosteroids were included, 59% female, mean (SD) age 54(12)yrs, FEV1 64.7(20.4)% predicted. Sub-optimal adherence (MARS score < 4.5) was reported in 62 participants, and 76 did not have detectable urinary prednisolone or metabolites. Good adherence by both methods was detected in only 52 participants (34%, see table). There was no difference in daily prednisolone dose between detectable and undetectable metabolites groups (p=0.848).

    Conclusion: Low levels of adherence to treatment in severe asthma is a common problem, when measured either directly or self-reported. There was very poor agreement (48% concordance) between these two methods, and we suggest that, for now both approaches should be used.

  • 5. Allinson, James
    et al.
    Afzal, Shoaib
    Colak, Yunus
    Backman, Helena
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Avdelningen för hållbar hälsa. Luleå University of Technology, Sweden.
    Van den Berghe, Maarten
    Boezen, Marike
    Breyer, Marie
    Breyer-Kohansal, Robab
    Burghuber, Otto C.
    Faner, Rosa
    Hartl, Sylvia
    Jarvis, Deborah
    Lahouse, Lies
    Langhammer, Arnulf
    Lundback, Bo
    Nwaru, Bright
    Rönmark, Eva
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Avdelningen för hållbar hälsa.
    Vikjord, Sigrid
    Vonk, Judith
    Vijnant, Sara
    Szabo, Viktoria
    Agusti, Alvar
    Donaldson, Gavin
    Wedzicha, Jadwiga
    Vestbo, Jorgen
    Vanfleteren, Lowie
    Collating data from major European population studies - The CADSET (Chronic airway disease early stratification) clinical research collaboration2020Ingår i: European Respiratory Journal, ISSN 0903-1936, E-ISSN 1399-3003, Vol. 56, nr suppl 64, artikel-id 3757Artikel i tidskrift (Övrigt vetenskapligt)
    Abstract [en]

    Background: European population cohorts continue to expand our understanding of chronic airways disease and inter-study collaboration may help address the inevitable limitations of study size, duration, era and geography. Towards this aim, CADSET has collated data from ten major general population European cohorts: Asklepios; Copenhagen City Heart Study; Copenhagen General Population Study; ECRHS; HUNT; LEAD; Lifelines, OLIN, Rotterdam Study and WSAS. We included males and females aged 20 to 95 years with baseline demographic and spirometry data.

    Results: Data from 262,829 individuals (44% male) from multiple European countries provided good coverage across all adult ages (Fig.1A). Recruitment occurred in every year from 1976 through 2020. 23% were current-smokers and 42% were never-smokers, a pattern varying with advancing age (Fig.1B). The prevalence of airflow limitation varied according to whether lower limit of normal (LLN) or <0.70 thresholds were applied, increasing with age if the latter was used (Fig.1C).

    Interpretation: These results fit with previous reports, however the size, geographical reach and span of recruitment provided by this collaboration provides a unique opportunity to explore chronic airways disease development. Together, we are now pursuing research questions previously beyond the scope of individual cohort studies.

  • 6.
    Almqvist, Linnéa
    et al.
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Avdelningen för hållbar hälsa.
    Backman, Helena
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Avdelningen för hållbar hälsa.
    Stridsman, Caroline
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Avdelningen för medicin.
    Lindberg, Anne
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Avdelningen för medicin.
    Lundback, Bo
    Rönmark, Eva
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Avdelningen för hållbar hälsa.
    Hedman, Linnea
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Avdelningen för hållbar hälsa. Department of Health Sciences, Luleå University of Technology, Luleå, Umeå, Sweden.
    Clinical outcome of adult onset asthma in a 15 year follow-up2020Ingår i: European Respiratory Journal, ISSN 0903-1936, E-ISSN 1399-3003, Vol. 56Artikel i tidskrift (Övrigt vetenskapligt)
  • 7.
    An, Qingfan
    et al.
    Umeå universitet, Medicinska fakulteten, Institutionen för samhällsmedicin och rehabilitering, Avdelningen för fysioterapi.
    Sandlund, Marlene
    Umeå universitet, Medicinska fakulteten, Institutionen för samhällsmedicin och rehabilitering, Avdelningen för fysioterapi.
    Agnello, Danielle
    Glasgow Caledonian University, Glasgow, United Kingdom.
    Mccaffrey, Lauren
    Glasgow Caledonian University, Glasgow, United Kingdom.
    Chastin, Sebastien
    Glasgow Caledonian University, Glasgow, United Kingdom.
    Helleday, Ragnberth
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin.
    Wadell, Karin
    Umeå universitet, Medicinska fakulteten, Institutionen för samhällsmedicin och rehabilitering, Avdelningen för fysioterapi.
    A scoping review of co-creation practice in the development of non-pharmacological interventions for people with chronic obstructive pulmonary disease2023Ingår i: European Respiratory Journal, ISSN 0903-1936, E-ISSN 1399-3003, Vol. 62, nr Suppl. 67, artikel-id PA2416Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Background: Incorporating co-creation process in the development of interventions may improve the outcome. However, there is a lack of synthesis of co-creation practices in the development of Non-Pharmacological Interventions (NPIs) for Chronic Obstructive Pulmonary Disease (COPD).

    Objective: This scoping review aimed to examine the co-creation practice used when developing NPIs for people with COPD.

    Methods: The methodology proposed by Arksey and O’Malley for scoping reviews was followed, and it was reported according to the PRISMA-ScR framework. The search included PubMed, Scopus, CINAHL, and Web of Science. Studies reporting on the process and/or analysis of applying co-creation practice in developing NPIs for people with COPD were included.

    Results: 13 articles complied with the inclusion criteria. The composition of co-creators was diverse and reported in most of the included studies. Facilitating factors described in the co-creation practices included administrative preparations, diversity of stakeholders, cultural considerations, employment of creative methods, creation of an appreciative environment, and digital assistance. Few creative methods were mentioned or explained in the studies. Challenges around the physical limitations of patients, the absence of key stakeholder opinions, a prolonged process, recruitment, and digital illiteracy of co-creators were listed. Most of the studies did not report implementation considerations as a discussion point in their co-creation workshops.

    Conclusion: This review provides suggestions for evidence-based co-creation in COPD care which may improve the quality of care delivered by NPIs.

  • 8. Andersen, Heidi
    et al.
    Ilmarinen, Pinja
    Tuomisto, Leena
    Piirila, Paivi
    Sovijarvi, Anssi
    Backman, Helena
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin.
    Lundback, Bo
    Rönmark, Eva
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin.
    Lehtimaki, Lauri
    Kankaanranta, Hannu
    Difference in Dyspnea between Swedish and Finnish Speaking Persons in Western Finland: Association with Lifestyle2019Ingår i: European Respiratory Journal, ISSN 0903-1936, E-ISSN 1399-3003, Vol. 54Artikel i tidskrift (Övrigt vetenskapligt)
  • 9. Andersson, E
    et al.
    Knutsson, A
    Hagberg, S
    Nilsson, T
    Umeå universitet, Medicinsk fakultet, Folkhälsa och klinisk medicin, Yrkes- och miljömedicin.
    Karlsson, B
    Umeå universitet, Medicinsk fakultet, Folkhälsa och klinisk medicin, Yrkes- och miljömedicin.
    Alfredsson, L
    Torén, K
    Incidence of asthma among workers exposed to sulphur dioxide and other irritant gases.2006Ingår i: European Respiratory Journal, ISSN 0903-1936, E-ISSN 1399-3003, Vol. 27, nr 4, s. 720-725Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    The aim of the present study was to investigate whether repeated peak exposure (gassings) to sulphur dioxide (SO2) and other irritant gases increases the risk of new-onset asthma. A questionnaire was sent to 4,112 sulphite workers, of whom 1,919 completed the questionnaire and 396 completed the short-form questionnaire, which was sent out as a last reminder. A sample of 130 nonrespondents completed a telephone interview using the short-form questionnaire. The incidence of adult-onset, physician-diagnosed asthma during employment duration was analysed in relation to exposure to SO2 and gassings giving rise to respiratory symptoms. Incidence rates, as well as incidence rate ratios with 95% confidence interval (CI), were calculated. Further Cox regression models were used allowing assessment of hazard ratios (HR) stratified for sex and adjusted for atopy, smoking habits and age. The incidence rate for asthma among sulphite mill workers reporting gassings of SO2 was 6.2 out of 1,000 person-yrs, compared with 1.9 out of 1,000 person-yrs among subjects unexposed to SO2 and any gassings (HR (95% CI) 4.0 (2.1-7.7)). Among males reporting gassings to SO2, the HR (95% CI) for asthma was 5.8 (2.6-13) compared with unexposed males. In conclusion, repeated peak exposure to sulphur dioxide increased the incidence of asthma during work in sulphite pulp mills, which supports the hypothesis of irritant-induced asthma.

  • 10.
    Andersén, Heidi
    et al.
    Karolinska University Hospital, Thoracic Oncology Unit, Tema Cancer, Stockholm, Sweden.
    Kankaanranta, Hannu
    Department of Respiratory Medicine, Seinäjoki Central Hospital, Seinäjoki, Finland.
    Tuomisto, Leena E.
    Department of Respiratory Medicine, Seinäjoki Central Hospital, Seinäjoki, Finland .
    Piirilä, Päivi
    Unit of Clinical Physiology, Department of Clinical Physiology and Nuclear Medicine, HUS Medical Imaging Center, Helsinki University Central Hospital, Helsinki, Finland.
    Sovijärivi, Anssi
    Unit of Clinical Physiology, Department of Clinical Physiology and Nuclear Medicine, HUS Medical Imaging Center, Helsinki University Central Hospital, Helsinki, Finland.
    Langhammer, Arnulf
    HUNT Research Centre, Department of Public Health and Nursing, Faculty of Medicine and Health Sciences, NTNU, Norwegian University of Science and Technology, Levanger, Norway.
    Backman, Helena
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin.
    Rönmark, Eva
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin.
    Lundbäck, Bo
    Department of Internal Medicine, Krefting Research Center, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.
    Lehtimäki, Lauri
    Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland.
    Ilmarinen, Pinja
    Department of Respiratory Medicine, Seinäjoki Central Hospital, Seinäjoki, Finland., Seinäjoki, Finland.
    Multimorbidity in Finnish and Swedish speaking Finns - association with daily habits and socioeconomic status: A Nordic EpiLung study2020Ingår i: European Respiratory Journal, ISSN 0903-1936, E-ISSN 1399-3003, Vol. 56Artikel i tidskrift (Övrigt vetenskapligt)
  • 11.
    Axelsson, Malin
    et al.
    Department of Care Science, Faculty of Health and Society, Malmö University, Malmö; Krefting Research Centre, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden.
    Backman, Helena
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Avdelningen för hållbar hälsa. Dept of Health Sciences, Luleå University of Technology, Luleå, Sweden.
    Vanfleteren, Lowie
    Centre for COPD Research, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden.
    Stridsman, Caroline
    Dept of Health Sciences, Luleå University of Technology, Luleå, Sweden.
    Ekerljung, Linda
    Krefting Research Centre, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden.
    Eriksson, Berne
    Research and Development, Region of Halland, Halmstad, Sweden.
    Nwaru, Bright
    Krefting Research Centre, Institute of Medicine, University of Gothenburg; Wallenberg Centre for Molecular and Translational Medicine, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden.
    Rönmark, Eva
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Avdelningen för hållbar hälsa.
    Kankaanranta, Hannu
    Faculty of Medicine and Health Technology, Tampere University, Tampere; Department of Respiratory Medicine, Seinäjoki Central Hospital, Seinäjoki, Finland.
    Lindberg, Anne
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Avdelningen för medicin.
    Lundbäck, Bo
    Krefting Research Centre, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden.
    Underdiagnosis and misclassification of COPD in Sweden2020Ingår i: European Respiratory Journal, ISSN 0903-1936, E-ISSN 1399-3003, Vol. 56Artikel i tidskrift (Övrigt vetenskapligt)
  • 12. Ayres, JG
    et al.
    Forsberg, Bertil
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Yrkes- och miljömedicin.
    Annesi-Maesano, I
    Dey, R
    Ebi, KL
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Yrkes- och miljömedicin.
    Helms, PJ
    Medina-Ramón, M
    Windt, M
    Forastiere, F
    Climate change and respiratory disease: European Respiratory Society position statement2009Ingår i: European Respiratory Journal, ISSN 0903-1936, E-ISSN 1399-3003, Vol. 34, nr 2, s. 295-302Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Climate change will affect individuals with pre-existing respiratory disease, but the extent of the effect remains unclear. The present position statement was developed on behalf of the European Respiratory Society in order to identify areas of concern arising from climate change for individuals with respiratory disease, healthcare workers in the respiratory sector and policy makers. The statement was developed following a 2-day workshop held in Leuven (Belgium) in March 2008. Key areas of concern for the respiratory community arising from climate change are discussed and recommendations made to address gaps in knowledge. The most important recommendation was the development of more accurate predictive models for predicting the impact of climate change on respiratory health. Respiratory healthcare workers also have an advocatory role in persuading governments and the European Union to maintain awareness and appropriate actions with respect to climate change, and these areas are also discussed in the position statement.

  • 13.
    Backman, Helena
    et al.
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin. Department of Health Sciences, Luleå University of Technology , Lulea, Sweden.
    Bhatta, Laxmi
    Department of Public Health and Nursing, NTNU, Norwegian University of Science and Technology, Trondheim, Norway.
    Hedman, Linnea
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin. Department of Health Sciences, Luleå University of Technology , Lulea, Sweden.
    Brumpton, Ben
    Department of Public Health and Nursing, NTNU, Norwegian University of Science and Technology and Clinic of Thoracic and Occupational Medicine, St. Olavs Hospital, Trondheim, Norway.
    Vähätalo, Iida
    Department of Respiratory Medicine, Seinäjoki Central Hospital, Seinäjoki, Finland.
    Lassman-Klee, Paul G.
    Unit of Clinical Physiology, Helsinki University Central Hospital and University of Helsinki, Helsinki, Finland.
    Nwaru, Bright
    Krefting Research center, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden.
    Mai, Xiao-Mei
    Department of Public Health and Nursing, NTNU, Norwegian University of Science and Technology, Trondheim, Norway.
    Vikjord, Sigrid Anna
    HUNT Research Centre, Department of Public Health and Nursing, NTNU, Norwegian University of Science and Technology, Levanger, Norway.
    Lindberg, Anne
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin.
    Lundbäck, Bo
    Krefting Research center, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden.
    Rönmark, Eva
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin.
    Langhammer, Arnulf
    HUNT Research Centre, Department of Public Health and Nursing, NTNU, Norwegian University of Science and Technology, Levanger, Norway.
    Respiratory symptoms as risk factors for mortality - the Nordic EpiLung Study2020Ingår i: European Respiratory Journal, ISSN 0903-1936, E-ISSN 1399-3003, Vol. 56, nr Suppl. 64Artikel i tidskrift (Övrigt vetenskapligt)
  • 14.
    Backman, Helena
    et al.
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Yrkes- och miljömedicin.
    Ekerljung, Linda
    Eriksson, Berne
    Stridsman, Caroline
    Mincheva, Roxana
    Hedman, Linnea
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Yrkes- och miljömedicin.
    Hagstad, Stig
    Lindberg, Anne
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Medicin.
    Ullman, Anders
    Rönmark, Eva
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Yrkes- och miljömedicin.
    Lundback, Bo
    Decrease in prevalence of COPD in Sweden after decades of decrease in smoking2018Ingår i: European Respiratory Journal, ISSN 0903-1936, E-ISSN 1399-3003, Vol. 52Artikel i tidskrift (Övrigt vetenskapligt)
    Abstract [en]

    Background: The smoking prevalence in Sweden has steadily decreased during three decades. The prevalence of COPD in Sweden in the 1990s and around the millennium shift was similar to neighboring European countries, i.e. estimated at 11-17%, and of moderate to severe COPD to 7-11%, in ages over 40y.

    Aim: Has the prevalence of chronic airway obstruction (CAO) and of COPD in Sweden decreased after decades of decreasing smoking prevalence?

    Methods: Within two large scale population studies in progress, the West Sweden Asthma Study (WSAS) and the Obstructive Lung Disease in Northern Sweden Studies (OLIN), the prevalence of COPD in ages 41-72y was calculated among randomly selected subjects from the general population in 2009-2012. The following post-bronchodilator definitions were used; CAO: FEV1/FVC<LLN and FEV1/FVC<0.7; moderate to severe CAO: FEV1/FVC<LLN with FEV1<LLN, and FEV1/FVC<0.7 with FEV1<80% of predicted. In line with the GOLD 2017 guidelines, both CAO and respiratory symptoms were required for the diagnosis of COPD.

    Results: The prevalence of CAO based on the FEV1/FVC<LLN and FEV1/FVC<0.7 criteria, respectively, was 6.4% and 10.3%, while the corresponding prevalence of COPD was 5.6% and 8.4%. The prevalence of moderate to severe CAO was 4.0% (LLN-criterion) and 5.0% (fixed ratio-criterion) and of moderate to severe COPD 3.8% and 4.4%, respectively. Main risk factors for both CAO and COPD were smoking, male sex and increasing age.

    Conclusion: As prevalence of COPD defined as chronic airway obstruction before and around the millennium shift was estimated at 11-17% in ages >40 years, the prevalence of COPD has decreased in Sweden, and the decrease in smoking over decades is probably the main causal factor.

  • 15.
    Backman, Helena
    et al.
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Yrkes- och miljömedicin.
    Hedman, Linnea
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Yrkes- och miljömedicin.
    Stridsman, Caroline
    Jansson, Sven-Arne
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Yrkes- och miljömedicin.
    Sandström, Thomas
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Medicin.
    Lindberg, Anne
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Medicin.
    Lundback, Bo
    Rönmark, Eva
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Yrkes- och miljömedicin.
    Eosinophilic inflammation and lung function decline in a long-term follow-up of a large population-based asthma cohort2018Ingår i: European Respiratory Journal, ISSN 0903-1936, E-ISSN 1399-3003, Vol. 52Artikel i tidskrift (Övrigt vetenskapligt)
    Abstract [en]

    The relationship between lung function decline and airway inflammation among asthmatics has important therapeutic implications, but has rarely been studied in large samples or in population-based asthma cohorts.

    A population-based adult asthma cohort (n=2055) was recruited during 1986-2001 and clinically examined including spirometry. In 2012-2014, all still eligible subjects (n=1425) were invited to a clinical follow-up including spirometry, blood sampling, and a structured interview, and n=1006 participated (55% women, mean age 59y, 32-92y). Linear regression was performed with age, sex, smoking habits, year of first examination, family history of asthma, socioeconomic status, eosinophils (EOS)>=0.3x109/L, and neutrophils (NEUT)>=5.0x109/L as independent variables and pre-bronchodilator FEV1 decline/year (ml and % of predicted [pp], respectively) as dependent. In secondary models, both ICS use at baseline and ICS use at follow-up were also included.

    The mean annual FEV1 decline in ml (pp) among asthmatics with EOS<0.3, 0.4>EOS>=0.3 and EOS>=0.4x109/L, respectively, was 26ml (0.03pp), 29ml (0.10pp) and 34ml (0.27pp) (p<0.001). In adjusted analyses, EOS>=0.3 was significantly associated with FEV1 decline, both in terms of ml (4ml excess annual decline vs EOS<0.3) and pp. The association between EOS and FEV1 decline in pp, but not ml, remained when additionally adjusted for ICS use. The association with NEUT>=5.0x109/L was less clear.

    On group level, adult asthmatics with higher levels of eosinophils in blood have a history of excess FEV1 decline compared to asthmatics with lower levels of eosinophil inflammation, independent of other factors such as ICS use.

  • 16.
    Backman, Helena
    et al.
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Yrkes- och miljömedicin.
    Jansson, Sven-Arne
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Yrkes- och miljömedicin.
    Stridsman, Caroline
    Eriksson, Berne
    Hedman, Linnea
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Yrkes- och miljömedicin.
    Eklund, Britt-Marie
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Yrkes- och miljömedicin.
    Sandström, Thomas
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Medicin.
    Lindberg, Anne
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Medicin.
    Lundback, Bo
    Rönmark, Eva
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Yrkes- och miljömedicin.
    Severe asthma among adults: Prevalence and clinical characteristics2018Ingår i: European Respiratory Journal, ISSN 0903-1936, E-ISSN 1399-3003, Vol. 52Artikel i tidskrift (Övrigt vetenskapligt)
    Abstract [en]

    Background: Severe asthma is a considerable challenge for patients, health care professionals and society. Few studies have estimated the prevalence of severe asthma according to modern definitions of which none based on a population study.

    Methods: We estimated the prevalence and studied characteristics of severe asthma in a large adult population-based asthma cohort followed for 10-28 years in northern Sweden: 1006 subjects participated in a follow-up during 2012-14, when 830 (82.5%) still had current asthma (mean age 59y, 32-92y, 56% women). Severe asthma was defined according to three internationally well-known criteria: the US SARP, ATS/ERS and GINA. All subjects with severe asthma were undergoing respiratory specialist care, and were also contacted by telephone to verify adherence to treatment.

    Results: The prevalence of severe asthma according to the three definitions was 3.6% (US SARP), 4.8% (ERS/ATS), and 6.1% (GINA) among subjects with current asthma. Although all were using high ICS doses and other maintenance treatment, >40% had uncontrolled asthma and <10% had controlled asthma according to the ACT. Severe asthma was related to age >50 years, nasal polyposis, decreased FEV1, not fully reversible airway obstruction, sensitization to aspergillus, elevated neutrophils and partly to eosinophils, and tended to be more common in women.

    Conclusion: The prevalence of severe asthma in this asthma cohort was 4-6%, corresponding to approximately 0.5% of the population in northern Sweden. A substantial proportion of those with severe asthma had uncontrolled disease, and severe asthma differed significantly from other asthma in terms of both clinical and inflammatory characteristics.

  • 17.
    Backman, Helena
    et al.
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin.
    Stridsman, Caroline
    Hedman, Linnea
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin.
    Lindberg, Anne
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin.
    Andersson, Martin
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin.
    Lundback, Bo
    Rönmark, Eva
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin.
    Characterization of adults with asthma per GINA treatment steps2019Ingår i: European Respiratory Journal, ISSN 0903-1936, E-ISSN 1399-3003, Vol. 54Artikel i tidskrift (Övrigt vetenskapligt)
  • 18.
    Backman, Helena
    et al.
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Avdelningen för hållbar hälsa. Luleå University of Technology, Health Sciences, Luleå, Sweden.
    Stridsman, Caroline
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Avdelningen för medicin.
    Jansson, Sven-Arne
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Avdelningen för hållbar hälsa.
    Hedman, Linnea
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Avdelningen för hållbar hälsa.
    Kankaanranta, Hannu
    Department of Respiratory Medicine, Seinäjoki Central Hospital, and Faculty of Medicine and Health Technology, University of Tampere, Seinäjoki, Finland.
    Lindberg, Anne
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Avdelningen för medicin.
    Lundbäck, Bo
    Krefting Research Centre, Institute of Medicine, University of Gothenburg, Gothenburg, Gothenburg, Sweden.
    Rönmark, Eva
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Avdelningen för medicin.
    Risk factors for severe asthma among adults with asthma2020Ingår i: European Respiratory Journal, ISSN 0903-1936, E-ISSN 1399-3003, Vol. 56Artikel i tidskrift (Övrigt vetenskapligt)
  • 19. Bakke, PS
    et al.
    Rönnmark, Eva
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Yrkes- och miljömedicin.
    Eagan, T
    Pistelli, F
    Annesi-Maesano, I
    Maly, M
    Meren, M
    Vermeire, P
    Vestbo, J
    Viegi, G
    Zielinski, J
    Lundbäck, B
    Recommendations for epidemiological studies on COPD2011Ingår i: European Respiratory Journal, ISSN 0903-1936, E-ISSN 1399-3003, Vol. 38, nr 6, s. 1261-1277Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    The prevalence of chronic obstructive pulmonary disease (COPD) has been extensively studied, especially in Western Europe and North America. Few of these data are directly comparable because of differences between the surveys regarding composition of study populations, diagnostic criteria of the disease and definitions of the risk factors. Few community studies have examined phenotypes of COPD and included other ways of characterising the disease beyond that of spirometry. The objective of the present Task Force report is to present recommendations for the performance of general population studies in COPD in order to facilitate comparable and valid estimates on COPD prevalence by various risk factors. Diagnostic criteria in epidemiological settings, and standardised methods to examine the disease and its potential risk factors are discussed. The paper also offers practical advice for planning and performing an epidemiological study on COPD. The main message of the paper is that thorough planning is worth half the study. It is crucial to stick to standardised methods and good quality control during sampling. We recommend collecting biological markers, depending on the specific objectives of the study. Finally, studies of COPD in the population at large should assess various phenotypes of the disease.

  • 20. Bals, Robert
    et al.
    Boyd, Jeanette
    Esposito, Susanna
    Foronjy, Robert
    Hiemstra, Pieter S.
    Jimenez-Ruiz, Carlos A.
    Katsaounou, Paraskevi
    Lindberg, Anne
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Avdelningen för medicin.
    Metz, Carlos
    Schober, Wolfgang
    Spira, Avrum
    Blasi, Francesco
    Electronic cigarettes: a task force report from the European Respiratory Society2019Ingår i: European Respiratory Journal, ISSN 0903-1936, E-ISSN 1399-3003, Vol. 53, nr 2, artikel-id 1801151Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    There is a marked increase in the development and use of electronic nicotine delivery systems or electronic cigarettes (ECIGs). This statement covers electronic cigarettes (ECIGs), defined as "electrical devices that generate an aerosol from a liquid" and thus excludes devices that contain tobacco. Database searches identified published articles that were used to summarise the current knowledge on the epidemiology of ECIG use; their ingredients and accompanied health effects; second-hand exposure; use of ECIGs for smoking cessation; behavioural aspects of ECIGs and social impact; in vitro and animal studies; and user perspectives. ECIG aerosol contains potentially toxic chemicals. As compared to conventional cigarettes, these are fewer and generally in lower concentrations. Second-hand exposures to ECIG chemicals may represent a potential risk, especially to vulnerable populations. There is not enough scientific evidence to support ECIGs as an aid to smoking cessation due to a lack of controlled trials, including those that compare ECIGs with licenced stop-smoking treatments. So far, there are conflicting data that use of ECIGs results in a renormalisation of smoking behaviour or for the gateway hypothesis. Experiments in cell cultures and animal studies show that ECIGs can have multiple negative effects. The long-term effects of ECIG use are unknown, and there is therefore no evidence that ECIGs are safer than tobacco in the long term. Based on current knowledge, negative health effects cannot be ruled out.

  • 21.
    Behndig, Annelie
    et al.
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Lungmedicin.
    Mudway, IS
    Brown, JL
    Stenfors, Nikolai
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Lungmedicin.
    Helleday, Ragnberth
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Lungmedicin.
    Duggan, ST
    Wilson, SJ
    Boman, C
    Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för tillämpad fysik och elektronik, Energiteknik och termisk processkemi.
    Cassee, FR
    Frew, AJ
    Kelly, FJ
    Sandström, Thomas
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Lungmedicin.
    Blomberg, Anders
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Lungmedicin.
    Airway antioxidant and inflammatory responses to diesel exhaust exposure in healthy humans.2006Ingår i: European Respiratory Journal, ISSN 0903-1936, E-ISSN 1399-3003, Vol. 27, nr 2, s. 359-365Artikel i tidskrift (Refereegranskat)
    Abstract [sv]

    Pulmonary cells exposed to diesel exhaust (DE) particles in vitro respond in a hierarchical fashion with protective antioxidant responses predominating at low doses and inflammation and injury only occurring at higher concentrations. In the present study, the authors examined whether similar responses occurred in vivo, specifically whether antioxidants were upregulated following a low-dose DE challenge and investigated how these responses related to the development of airway inflammation at different levels of the respiratory tract where particle dose varies markedly. A total of 15 volunteers were exposed to DE (100 microg x m(-3) airborne particulate matter with a diameter of <10 microm for 2 h) and air in a double-blinded, randomised fashion. At 18 h post-exposure, bronchoscopy was performed with lavage and mucosal biopsies taken to assess airway redox and inflammatory status. Following DE exposure, the current authors observed an increase in bronchial mucosa neutrophil and mast cell numbers, as well as increased neutrophil numbers, interleukin-8 and myeloperoxidase concentrations in bronchial lavage. No inflammatory responses were seen in the alveolar compartment, but both reduced glutathione and urate concentrations were increased following diesel exposure. In conclusion, the lung inflammatory response to diesel exhaust is compartmentalised, related to differing antioxidant responses in the conducting airway and alveolar regions.

  • 22.
    Behndig, Annelie
    et al.
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Lungmedicin.
    Mudway, IS
    Brown, JL
    Stenfors, Nikolai
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Lungmedicin.
    Helleday, Ragnberth
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Lungmedicin.
    Duggan, ST
    Wilson, SJ
    Boman, Christoffer
    Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för tillämpad fysik och elektronik, Energiteknik och termisk processkemi.
    Cassee, FR
    Frew, AJ
    Kelly, FJ
    Sandström, Thomas
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Lungmedicin.
    Blomberg, Anders
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Lungmedicin.
    Airway antioxidant and inflammatory responses to diesel exhaust exposure in healthy humans.2006Ingår i: European Respiratory Journal, ISSN 0903-1936, E-ISSN 1399-3003, Vol. 27, nr 2, s. 359-365Artikel i tidskrift (Refereegranskat)
    Abstract [sv]

    Pulmonary cells exposed to diesel exhaust (DE) particles in vitro respond in a hierarchical fashion with protective antioxidant responses predominating at low doses and inflammation and injury only occurring at higher concentrations. In the present study, the authors examined whether similar responses occurred in vivo, specifically whether antioxidants were upregulated following a low-dose DE challenge and investigated how these responses related to the development of airway inflammation at different levels of the respiratory tract where particle dose varies markedly. A total of 15 volunteers were exposed to DE (100 microg x m(-3) airborne particulate matter with a diameter of <10 microm for 2 h) and air in a double-blinded, randomised fashion. At 18 h post-exposure, bronchoscopy was performed with lavage and mucosal biopsies taken to assess airway redox and inflammatory status. Following DE exposure, the current authors observed an increase in bronchial mucosa neutrophil and mast cell numbers, as well as increased neutrophil numbers, interleukin-8 and myeloperoxidase concentrations in bronchial lavage. No inflammatory responses were seen in the alveolar compartment, but both reduced glutathione and urate concentrations were increased following diesel exposure. In conclusion, the lung inflammatory response to diesel exhaust is compartmentalised, related to differing antioxidant responses in the conducting airway and alveolar regions.

  • 23.
    Bergdahl, I A
    et al.
    Umeå universitet, Medicinsk fakultet, Folkhälsa och klinisk medicin, Yrkes- och miljömedicin.
    Torén, K
    Eriksson, K
    Umeå universitet, Medicinsk fakultet, Folkhälsa och klinisk medicin, Yrkes- och miljömedicin.
    Hedlund, U
    Umeå universitet, Medicinsk fakultet, Folkhälsa och klinisk medicin, Yrkes- och miljömedicin.
    Nilsson, T
    Umeå universitet, Medicinsk fakultet, Folkhälsa och klinisk medicin, Yrkes- och miljömedicin.
    Flodin, R
    Järvholm, B
    Umeå universitet, Medicinsk fakultet, Folkhälsa och klinisk medicin, Yrkes- och miljömedicin.
    Increased mortality in COPD among construction workers exposed to inorganic dust.2004Ingår i: European Respiratory Journal, ISSN 0903-1936, E-ISSN 1399-3003, Vol. 23, nr 3, s. 402-406Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    The aim of this study was to find out if occupational exposure to dust, fumes or gases, especially among never-smokers, increased the mortality from chronic obstructive pulmonary disease (COPD). A cohort of 317,629 Swedish male construction workers was followed from 1971 to 1999. Exposure to inorganic dust (asbestos, man-made mineral fibres, dust from cement, concrete and quartz), gases and irritants (epoxy resins, isocyanates and organic solvents), fumes (asphalt fumes, diesel exhaust and metal fumes), and wood dust was based on a job-exposure matrix. An internal control group with "unexposed" construction workers was used, and the analyses were adjusted for age and smoking. When all subjects were analysed, there was an increased mortality from COPD among those with any airborne exposure (relative risk 1.12 (95% confidence interval (CI) 1.03-1.22)). In a Poisson regression model, including smoking, age and the major exposure groups, exposure to inorganic dust was associated with an increased risk (hazard ratio (HR) 1.10 (95% CI 1.06-1.14)), especially among never-smokers (HR 2.30 (95% CI 1.07-4.96)). The fraction of COPD among the exposed attributable to any airborne exposure was estimated as 10.7% overall and 52.6% among never-smokers. In conclusion, occupational exposure among construction workers increases mortality due to chronic obstructive pulmonary disease, even among never-smokers.

  • 24.
    Bergdahl, Ingvar
    et al.
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Yrkes- och miljömedicin.
    Torén, K
    Nilsson, Tohr
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Yrkes- och miljömedicin.
    Eriksson, Kåre
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Yrkes- och miljömedicin.
    Hedlund, U
    Flodin, R
    Järvholm, Bengt
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Yrkes- och miljömedicin.
    Increased mortality in COPD among construction workers exposed to inorganic dust: from the authors2004Ingår i: European Respiratory Journal, ISSN 0903-1936, E-ISSN 1399-3003, Vol. 24, nr 3, s. 512-512Artikel i tidskrift (Refereegranskat)
  • 25.
    Bergqvist, Matilda
    et al.
    Umeå universitet, Medicinska fakulteten, Institutionen för samhällsmedicin och rehabilitering, Avdelningen för fysioterapi.
    Lindahl, Maja
    Umeå universitet, Medicinska fakulteten, Institutionen för samhällsmedicin och rehabilitering, Avdelningen för fysioterapi.
    Frykholm, Erik
    Umeå universitet, Medicinska fakulteten, Institutionen för samhällsmedicin och rehabilitering, Avdelningen för fysioterapi.
    Nyberg, Andre
    Umeå universitet, Medicinska fakulteten, Institutionen för samhällsmedicin och rehabilitering, Avdelningen för fysioterapi.
    Dynamic and static quadriceps muscle endurance in people with COPD and healthy age and gender-matched controls2019Ingår i: European Respiratory Journal, ISSN 0903-1936, E-ISSN 1399-3003, Vol. 54, nr suppl 63Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Introduction: It is commonly known that quadriceps muscle endurance is decreased among people with COPD, however, whether static and dynamic quadriceps muscle endurance is affected to the same extent, remains to be determined. The latter of importance for the design of exercise modalities targeting quadriceps endurance in COPD.Methods: Static (isometric) and dynamic (isokinetic, isotonic) measurements of quadriceps muscle endurance was performed using a computerized dynamometer on 30 of individuals with COPD (FEV1 63% predicted) and 30 healthy age and gender-matched controls. Test order was randomized, separated by 30 min of rest. Comparisons between groups included both relative (seconds/repetitions) and absolute (total work [Nm]) measures of quadriceps endurance. Between-group results are presented as percentage difference (%) and effect sizes (ES).Results: When compared to healthy age and gender matched controls, people with COPD had significantly lower absolute measures of quadriceps endurance (isometric -32%, ES 0.66 [moderate]; isokinetic -29%, ES 0.94 [large], isotonic -38%, ES 0.89 [large], all p &lt;0.05) as well as lower relative measures of dynamic quadriceps endurance (isotonic [repetitions] -20%, ES 0.50 [moderate], p = 0.02) while static quadriceps endurance did not differ between groups (isometric [seconds] -3%, ES 0.06 [trivial], p = 0.617).Conclusion: As evident by larger ES, dynamic quadriceps endurance seems to be reduced to a larger extent than static quadriceps endurance in people with COPD. Thus, exercise modalities that aim to improve quadriceps endurance should preferably be designed to increase dynamic quadriceps muscle enduranceFootnotesCite this article as: European Respiratory Journal 2019; 54: Suppl. 63, OA3814.This is an ERS International Congress abstract. No full-text version is available. Further material to accompany this abstract may be available at www.ers-education.org (ERS member access only).

  • 26.
    Bosson, Jenny
    et al.
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Lungmedicin.
    Barath, Stefan
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Lungmedicin.
    Pourazar, Jamshid
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Lungmedicin.
    Behndig, Annelie F
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Lungmedicin.
    Sandström, Thomas
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Lungmedicin.
    Blomberg, Anders
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Lungmedicin.
    Ädelroth, Ellinor
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Lungmedicin.
    Diesel exhaust exposure enhances the ozone-induced airway inflammation in healthy humans2008Ingår i: European Respiratory Journal, ISSN 0903-1936, E-ISSN 1399-3003, Vol. 31, nr 6, s. 1234-1240Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Exposure to particulate matter and ozone cause adverse airway reactions. Individual pollutant effects are often addressed separately, despite coexisting in ambient air. The present investigation was performed to study the effects of sequential exposures to diesel exhaust (DE) and ozone on airway inflammation in human subjects. Healthy subjects underwent bronchoscopy with bronchoalveolar lavage (BAL) and bronchial wash (BW) sampling on two occasions. Once following a DE exposure (with 300 mug.m(-3) particles with a 50% cut-off aerodynamic diameter of 10 mum) with subsequent exposure to O(3) (0.2 ppm) 5 h later. The other bronchoscopy was performed after a filtered air exposure followed by an ozone exposure, using an identical protocol. Bronchoscopy was performed 24 h after the start of the initial exposure. Significant increases in neutrophil and macrophage numbers were found in BW after DE followed by ozone exposure versus air followed by ozone exposure. DE pre-exposure also raised eosinophil protein X levels in BAL compared with air. The present study indicates additive effects of diesel exhaust on the ozone-induced airway inflammation. Together with similar results from a recent study with sequential diesel exhaust and ozone exposures, the present data stress a need to consider the interaction and cumulative effects of different air pollutants.

  • 27. Brunekreef, B
    et al.
    Annesi-Maesano, I
    Ayres, JG
    Forastiere, F
    Forsberg, Bertil
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Yrkes- och miljömedicin.
    Kuenzli, N
    Pekkanen, J
    Sigsgaard, T
    Ten principles for clean air2012Ingår i: European Respiratory Journal, ISSN 0903-1936, E-ISSN 1399-3003, Vol. 39, nr 3, s. 525-528Artikel i tidskrift (Refereegranskat)
  • 28. Brunekreef, Bert
    et al.
    Künzli, Nino
    Pekkanen, Juha
    Annesi-Maesano, Isabella
    Forsberg, Bertil
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Yrkes- och miljömedicin.
    Sigsgaard, Torben
    Keuken, Menno
    Forastiere, Francesco
    Barry, Maeve
    Querol, Xavier
    Harrison, Roy M
    Clean air in Europe: beyond the horizon?2015Ingår i: European Respiratory Journal, ISSN 0903-1936, E-ISSN 1399-3003, Vol. 45, nr 1, s. 7-10Artikel i tidskrift (Övrigt vetenskapligt)
  • 29. Carlsen, Hanne Krage
    et al.
    Koca, Hatice
    Lohman-Haga, Susanna
    Behndig, Annelie F.
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Avdelningen för medicin. Occupational and environmental medicine, School of Public Health and Community Medicine Sahlgrenska Academy, Sweden.
    Modig, Lars
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Avdelningen för hållbar hälsa.
    Olin, Anna-Carin
    In allergic individuals, FENO50 is associated with O3 and PM10 during pollen season2020Ingår i: European Respiratory Journal, ISSN 0903-1936, E-ISSN 1399-3003, Vol. 56Artikel i tidskrift (Övrigt vetenskapligt)
  • 30. Carsin, Anne-Elie
    et al.
    Keidel, Dirk
    Fuertes, Elaine
    Imboden, Medea
    Weyler, Joost
    Nowak, Dennis
    Heinrich, Joachim
    Urrutia, Isabel
    Martinez-Moratalla, Jose
    Caviezel, S.
    Beckmeyer-Borowko, A.
    Raherison, Chantal
    Pin, Isabelle
    Demoly, Pascal
    Leynaert, Benedicte
    Cerveri, I.
    Bono, Roberto
    Accordini, Simone
    Amaral, A.
    Gislason, Thorarig
    Svanes, Cecilie
    Toren, K.
    Forsberg, Bertil
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Yrkes- och miljömedicin.
    Janson, Christer
    Dharmage, S.
    Jogi, Rain
    Anto, Jm
    Probst-Hensch, Nicole
    Garcia-Aymerich, Judith
    Physical activity and incidence of restrictive spirometry pattern in adults2018Ingår i: European Respiratory Journal, ISSN 0903-1936, E-ISSN 1399-3003, Vol. 52Artikel i tidskrift (Övrigt vetenskapligt)
    Abstract [en]

    Introduction: A restrictive spirometry pattern is associated with high morbidity and mortality. Whether regular physical activity (PA) protects against this pattern has never been studied.

    Objective: To assess if PA is associated with the development of restrictive pattern.

    Methods: Lung function and PA were assessed in the second and third follow-up of the ECRHS (n=2757, 39-67 years) and SAPALDIA (n=2610, 36-82 y) cohorts. Subjects with restrictive or obstructive pattern at baseline were excluded. We assessed the association of being active at baseline (defined as exercising vigorously >2-3 times/wk for >1 h) and restrictive pattern at follow-up (defined as a post-bronchodilator FEV1/FVC≥LLN and FVC<80% pred.) using modified Poisson regression, adjusting for age, sex, smoking and asthma. We explored the impact of adjusting for baseline FVC. Additionally, models were repeated stratified by BMI.

    Results: After 10 years follow-up, 3.7% and 2.8% of participants developed a restrictive pattern, in ECRHS and SAPALDIA respectively. In both cohorts, being physically active was associated with lower risk of a restrictive pattern (meta-analysed RR 0.65, 95% CI 0.47-0.89). This association was stronger in overweight (0.41, 0.23-0.75) and obese (0.42, 0.17-1.05) than in normal weight subjects, but was attenuated when adjusting for baseline FVC (0.77, 0.58-1.04).

    Conclusion: In two large European studies, adults who reported more PA were at lower risk of developing a restrictive spirometry pattern. Lung function at baseline seemed to explain part of the observed association, stressing the need of adequate method to take into account both horse-racing and regression-to-the-means effects.

  • 31. Castro-Giner, F
    et al.
    Kogevinas, M
    Imboden, M
    de Cid, R
    Jarvis, D
    Mächler, M
    Berger, W
    Burney, P
    Franklin, Karl A
    Umeå universitet, Medicinska fakulteten, Institutionen för kirurgisk och perioperativ vetenskap, Kirurgi.
    Gonzalez, J R
    Heinrich, J
    Janson, C
    Omenaas, E
    Pin, I
    Rochat, T
    Sunyer, J
    Wjst, M
    Antó, J-M
    Estivill, X
    Probst-Hensch, N M
    Joint effect of obesity and TNFA variability on asthma: two international cohort studies.2009Ingår i: European Respiratory Journal, ISSN 0903-1936, E-ISSN 1399-3003, Vol. 33, nr 5, s. 1003-1009Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Obesity is a risk factor for asthma. Adipose tissue expresses pro-inflammatory molecules including tumour necrosis factor (TNF), and levels of TNF are also related to polymorphisms in the TNF-alpha (TNFA) gene. The current authors examined the joint effect of obesity and TNFA variability on asthma in adults by combining two population-based studies. The European Community Respiratory Health Survey and the Swiss Cohort Study on Air Pollution and Lung and Heart Disease in Adults used comparable protocols, questionnaires and measures of lung function and atopy. DNA samples from 9,167 participants were genotyped for TNFA -308 and lymphotoxin-alpha (LTA) +252 gene variants. Obesity and TNFA were associated with asthma when mutually adjusting for their independent effects (odds ratio (OR) for obesity 2.4, 95% confidence interval (CI) 1.7-3.2; OR for TNFA -308 polymorphism 1.3, 95% CI 1.1-1.6). The association of obesity with asthma was stronger for subjects carrying the G/A and A/A TNFA -308 genotypes compared with the more common G/G genotype, particularly among nonatopics (OR for G/A and A/A genotypes 6.1, 95% CI 2.5-14.4; OR for G/G genotype 1.7, 95% CI 0.8-3.3). The present findings provide, for the first time, evidence for a complex pattern of interaction between obesity, a pro-inflammatory genetic factor and asthma.

  • 32. Castro-Giner, F
    et al.
    Kogevinas, M
    Mächler, M
    de Cid, R
    Van Steen, K
    Imboden, M
    Schindler, C
    Berger, W
    Gonzalez, J R
    Franklin, Karl A
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Lungmedicin.
    Janson, C
    Jarvis, D
    Omenaas, E
    Burney, P
    Rochat, T
    Estivill, X
    Antó, J M
    Wjst, M
    Probst-Hensch, N M
    TNFA -308G>A in two international population-based cohorts and risk of asthma2008Ingår i: European Respiratory Journal, ISSN 0903-1936, E-ISSN 1399-3003, Vol. 32, nr 2, s. 350-361Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Genetic association studies have related the tumour necrosis factor-alpha gene (TNFA) guanine to adenine substitution of nucleotide -308 (-308G>A) polymorphism to increased risk of asthma, but results are inconsistent. The aim of the present study was to test whether two single-nucleotide polymorphisms, of TNFA and of the lymphotoxin-alpha gene (LTA), are associated with asthma, bronchial hyperresponsiveness and atopy in adults, by combining the results of two large population-based multicentric studies and conducting a meta-analysis of previously published studies. The European Community Respiratory Health Survey (ECRHS) and Swiss Cohort Study on Air Pollution and Lung and Heart Diseases in Adults (SAPALDIA) used comparable protocols, including questionnaires for respiratory symptoms and measures of lung function and atopy. DNA samples from 11,136 participants were genotyped at TNFA -308 and LTA 252. Logistic regression employing fixed and random effects models and nonparametric techniques were used. The prevalence of asthma was 6%. The TNFA -308G>A polymorphism was associated with increased asthma prevalence and with bronchial hyperresponsiveness. No consistent association was found for atopy. The LTA 252A>G polymorphism was not associated with any of the outcomes. A meta-analysis of 17 studies showed an increased asthma risk for the TNFA -308 adenine allele. The tumour necrosis factor-alpha gene nucleotide -308 polymorphism is associated with a moderately increased risk of asthma and bronchial hyperresponsiveness, but not with atopy. These results are supported by a meta-analysis of previously published studies.

  • 33.
    Chesov, Elena
    et al.
    Nicolae Testemitanu State University of Medicine and Pharmacy, Chisinau, Moldova; Chiril Draganiuc Phthisiopneumology Institute, Chisinau, Moldova; German Centre for Infection Research (DZIF), Partner site Hamburg-Lübeck-Borstel-Riems, Germany; Clinical Infectious Diseases, Research Center Borstel, Borstel, Germany.
    Chesov, Dumitru
    Nicolae Testemitanu State University of Medicine and Pharmacy, Chisinau, Moldova; German Centre for Infection Research (DZIF), Partner site Hamburg-Lübeck-Borstel-Riems, Germany; Clinical Infectious Diseases, Research Center Borstel, Borstel, Germany.
    Maurer, Florian P.
    National and Supranational Reference Center for Mycobacteria, Research Center Borstel, Borstel, Germany; Institute of Medical Microbiology, Virology and Hygiene, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
    Andres, Sönke
    National and Supranational Reference Center for Mycobacteria, Research Center Borstel, Borstel, Germany.
    Utpatel, Christian
    Molecular and Experimental Mycobacteriology, Research Center Borstel, Borstel, Germany.
    Barilar, Ivan
    Molecular and Experimental Mycobacteriology, Research Center Borstel, Borstel, Germany.
    Donica, Ana
    Chiril Draganiuc Phthisiopneumology Institute, Chisinau, Moldova.
    Reimann, Maja
    German Centre for Infection Research (DZIF), Partner site Hamburg-Lübeck-Borstel-Riems, Germany; Clinical Infectious Diseases, Research Center Borstel, Borstel, Germany; Respiratory Medicine & International Health, University of Lübeck, Lübeck, Germany.
    Niemann, Stefan
    German Centre for Infection Research (DZIF), Partner site Hamburg-Lübeck-Borstel-Riems, Germany; National and Supranational Reference Center for Mycobacteria, Research Center Borstel, Borstel, Germany; Molecular and Experimental Mycobacteriology, Research Center Borstel, Borstel, Germany.
    Lange, Christoph
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Avdelningen för medicin. Chiril Draganiuc Phthisiopneumology Institute, Chisinau, Moldova; German Centre for Infection Research (DZIF), Partner site Hamburg-Lübeck-Borstel-Riems, Germany; Respiratory Medicine & International Health, University of Lübeck, Lübeck, Germany; Global TB Program, Baylor College of Medicine, Texas Children’s Hospital, TX, Houston, United States.
    Crudu, Valeriu
    Chiril Draganiuc Phthisiopneumology Institute, Chisinau, Moldova.
    Heyckendorf, Jan
    German Centre for Infection Research (DZIF), Partner site Hamburg-Lübeck-Borstel-Riems, Germany; Clinical Infectious Diseases, Research Center Borstel, Borstel, Germany; Respiratory Medicine & International Health, University of Lübeck, Lübeck, Germany.
    Merker, Matthias
    German Centre for Infection Research (DZIF), Partner site Hamburg-Lübeck-Borstel-Riems, Germany; Molecular and Experimental Mycobacteriology, Research Center Borstel, Borstel, Germany; Evolution of the Resistome, Research Center Borstel, Borstel, Germany.
    Emergence of bedaquiline resistance in a high tuberculosis burden country2022Ingår i: European Respiratory Journal, ISSN 0903-1936, E-ISSN 1399-3003, Vol. 59, nr 3, artikel-id 2100621Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Rationale: Bedaquiline has been classified as a group A drug for the treatment of multidrug-resistant tuberculosis (MDR-TB) by the World Health Organization; however, globally emerging resistance threatens the effectivity of novel MDR-TB treatment regimens.

    Objectives: We analysed pre-existing and emerging bedaquiline resistance in bedaquiline-based MDR-TB therapies, and risk factors associated with treatment failure and death.

    Methods: In a cross-sectional cohort study, we employed patient data, whole-genome sequencing (WGS) and phenotyping of Mycobacterium tuberculosis complex (MTBC) isolates. We could retrieve baseline isolates from 30.5% (62 out of 203) of all MDR-TB patients who received bedaquiline between 2016 and 2018 in the Republic of Moldova. This includes 26 patients for whom we could also retrieve a follow-up isolate.

    Measurements and main results: At baseline, all MTBC isolates were susceptible to bedaquiline. Among 26 patients with available baseline and follow-up isolates, four (15.3%) patients harboured strains which acquired bedaquiline resistance under therapy, while one (3.8%) patient was re-infected with a second bedaquiline-resistant strain. Treatment failure and death were associated with cavitary disease (p=0.011), and any additional drug prescribed in the bedaquiline-containing regimen with WGS-predicted resistance at baseline (OR 1.92 per unit increase, 95% CI 1.15–3.21; p=0.012).

    Conclusions: MDR-TB treatments based on bedaquiline require a functional background regimen to achieve high cure rates and to prevent the evolution of bedaquiline resistance. Novel MDR-TB therapies with bedaquiline require timely and comprehensive drug resistance monitoring.

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  • 34.
    Ekerljung, Linda
    et al.
    Krefting Research Centre, Department of Internal Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.
    Bossios, Apostolos
    Krefting Research Centre, Department of Internal Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.
    Lötvall, Jan
    Krefting Research Centre, Department of Internal Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.
    Olin, Anna-Carin
    Department of Public Health and Community Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.
    Rönmark, Eva
    Obstructive Lung Disease in Northern Sweden (OLIN), Dept of Medicine, Sunderby Central Hospital of Norrbotten, Luleå, Sweden.
    Wennergren, Göran
    Department of Paediatrics, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.
    Torén, Kjell
    Department of Environmental & Occupational Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.
    Lundbäck, Bo
    Obstructive Lung Disease In Northern Sweden (OLIN) studies, Department of Medicine, Sunderby Central Hospital of Norrbotten, Luleå, Sweden.
    Multi-symptom asthma as an indication of disease severity in epidemiology2011Ingår i: European Respiratory Journal, ISSN 0903-1936, E-ISSN 1399-3003, Vol. 38, nr 4, s. 825-832Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Epidemiological questionnaires have failed to identify individuals with severe asthma. The extent of symptoms of asthma can, however, be easily established in epidemiology, by identification of multiple symptoms. We hypothesise that reporting of multiple symptoms of asthma reflects uncontrolled disease and is a sign of more severe asthma. The aims of the current study were, therefore, to determine the prevalence and determinants of multi-symptom asthma.

    A postal questionnaire was sent to 30,000 randomly selected individuals aged 16–75 yrs. A subgroup underwent clinical examinations. Multi-symptom asthma was defined as reported physician-diagnosed asthma, use of asthma medication, recurrent wheeze, attacks of shortness of breath and at least one additional respiratory symptom.

    The prevalence of multi-symptom asthma was 2.0%, and it was more common among females (2.4 versus 1.5%; p<0.001) and those with a body mass index >30 kg·m-2. Multi-symptom asthmatics had lower forced expiratory volume in 1 s, higher exhaled nitric oxide fraction and more pronounced hyperresponsiveness. Family history of both asthma and allergy (OR 7.3), and occupational exposure to gas dust or fumes (OR 2.0) were also significant risk factors.

    Multi-symptom asthmatics comprise 2% of the general population; multi-symptom asthma is related to signs of more severe disease and could be used as an epidemiological marker of disease severity.

  • 35. Ekstrom, Magnus
    et al.
    Blomberg, Anders
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Avdelningen för medicin.
    Bergstrom, Goran
    Brandberg, John
    Caidahl, Kenneth
    Engstrom, Gunnar
    Engvall, Jan
    Eriksson, Maria
    Gransbo, Klas
    Hansen, Tomas
    Jernberg, Tomas
    Nilsson, Lars
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Avdelningen för medicin.
    Nilsson, Ulf
    Olin, Anna-Carin
    Persson, Lennart
    Rosengren, Annika
    Sandelin, Martin
    Sköld, Magnus
    Sundström, Johan
    Swahn, Eva
    Söderberg, Stefan
    Tanash, Hanan
    Torén, Kjell
    Östgren, Carl-Johan
    Lindberg, Eva
    Body mass index, weight gain and activity-related breathlessness: the Swedish CArdioPulmonary bioImage Study2019Ingår i: European Respiratory Journal, ISSN 0903-1936, E-ISSN 1399-3003, Vol. 54Artikel i tidskrift (Övrigt vetenskapligt)
  • 36.
    Ekström, Magnus
    et al.
    Lund University, Faculty of Medicine, Dept of Clinical Sciences Lund, Respiratory Medicine and Allergology, Lund, Sweden.
    Bornefalk, Hans
    Hans Bornefalk AB, Vallentuna, Sweden.
    Sköld, C. Magnus
    Respiratory Medicine Unit, Dept of Medicine Solna and Center for Molecular Medicine, Karolinska Institutet, Stockholm, Sweden; Dept of Respiratory Medicine and Allergy, Karolinska University Hospital Solna, Stockholm, Sweden.
    Janson, Christer
    Dept of Medical Sciences: Respiratory, Allergy and Sleep Research, Uppsala University, Uppsala, Sweden.
    Blomberg, Anders
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Avdelningen för medicin.
    Sandberg, Jacob
    Lund University, Faculty of Medicine, Dept of Clinical Sciences Lund, Respiratory Medicine and Allergology, Lund, Sweden.
    Bornefalk-Hermansson, Anna
    Uppsala Clinical Research Center, Uppsala University, Uppsala, Sweden.
    Currow, David C.
    Faculty of Health, University of Technology Sydney, Ultimo, Australia.
    Johnson, Miriam J.
    Wolfson Palliative Care Research Centre, University of Hull, Hull, United Kingdom.
    Sundh, Josefin
    Dept of Respiratory Medicine, Faculty of Medicine and Health, Örebro University, Sweden.
    Minimal clinically important differences for Dyspnea-12 and MDP scores are similar at 2 weeks and 6 months: follow-up of a longitudinal clinical study2021Ingår i: European Respiratory Journal, ISSN 0903-1936, E-ISSN 1399-3003, Vol. 57, nr 3, artikel-id 2002823Artikel i tidskrift (Refereegranskat)
  • 37. Ekström, Magnus
    et al.
    Schiöler, Linus
    Grønseth, Rune
    Johannessen, Ane
    Svanes, Cecilie
    Leynaert, Benedicte
    Jarvis, Deborah
    Gislason, Thorarinn
    Demoly, Pascal
    Probst-Hensch, Nicole
    Pin, Isabelle
    Corsico, Angelo G
    Forsberg, Bertil
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Yrkes- och miljömedicin.
    Heinrich, Joachim
    Nowak, Dennis
    Raherison-Semjen, Chantal
    Dharmage, Shyamali C
    Trucco, Giulia
    Urrutia, Isabel
    Martinez-Moratalla Rovira, Jesús
    Sánchez-Ramos, José Luis
    Janson, Christer
    Torén, Kjell
    Absolute values of lung function explain the sex difference in breathlessness in the general population2017Ingår i: European Respiratory Journal, ISSN 0903-1936, E-ISSN 1399-3003, Vol. 49, nr 5, artikel-id 1602047Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Activity-related breathlessness is twice as common among females as males in the general population and is associated with adverse health outcomes. We tested whether this sex difference is explained by the lower absolute forced expiratory volume in 1 s (FEV1) or forced vital capacity (FVC) in females.This was a cross-sectional analysis of 3250 subjects (51% female) aged 38-67 years across 13 countries in the population-based third European Community Respiratory Health Survey. Activity-related breathlessness was measured using the modified Medical Research Council (mMRC) scale. Associations with mMRC were analysed using ordered logistic regression clustering on centre, adjusting for post-bronchodilator spirometry, body mass index, pack-years smoking, cardiopulmonary diseases, depression and level of exercise.Activity-related breathlessness (mMRC ≥1) was twice as common in females (27%) as in males (14%) (odds ratio (OR) 2.21, 95% CI 1.79-2.72). The sex difference was not reduced when controlling for FEV1 % predicted (OR 2.33), but disappeared when controlling for absolute FEV1 (OR 0.89, 95% CI 0.69-1.14). Absolute FEV1 explained 98-100% of the sex difference adjusting for confounders. The effect was similar within males and females, when using FVC instead of FEV1 and in healthy never-smokers.The markedly more severe activity-related breathlessness among females in the general population is explained by their smaller spirometric lung volumes.

  • 38.
    Emilsson, Ossur I.
    et al.
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Lungmedicin.
    Bengtsson, Anna
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Lungmedicin.
    Franklin, Karl A.
    Umeå universitet, Medicinska fakulteten, Institutionen för kirurgisk och perioperativ vetenskap, Kirurgi. Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Lungmedicin.
    Toren, Kjell
    Benediktsdottir, Bryndis
    Farkhooy, Amir
    Weyler, Joost
    Dom, Sandra
    De Backer, Wilfried
    Gislason, Thorarinn
    Janson, Christer
    Nocturnal gastro-oesophageal reflux, asthma and symptoms of OSA: a longitudinal, general population study2013Ingår i: European Respiratory Journal, ISSN 0903-1936, E-ISSN 1399-3003, Vol. 41, nr 6, s. 1347-1354Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Nocturnal gastro-oesophageal reflux (nGOR) is associated with asthma and obstructive sleep apnoea (OSA). Our aim was to investigate whether nGOR is a risk factor for onset of asthma and onset of respiratory and OSA symptoms in a prospective population-based study. We invited 2640 subjects from Iceland, Sweden and Belgium for two evaluations over a 9-year interval. They participated in structured interviews, answered questionnaires, and underwent spirometries and methacholine challenge testing. nGOR was defined by reported symptoms. Subjects with persistent nGOR (n=123) had an independent increased risk of new asthma at follow-up (OR 2.3, 95% CI 1.1-4.9). Persistent nGOR was independently related to onset of respiratory symptoms (OR 3.0, 95% CI 1.6-5.6). The risk of developing symptoms of OSA was increased in subjects with new and persistent nGOR (OR 2.2, 95% CI 1.3-1.6, and OR 2.0, 95% CI 1.0-3.7, respectively). No significant association was found between nGOR and lung function or bronchial responsiveness. Persistent symptoms of nGOR contribute to the development of asthma and respiratory symptoms. New onset of OSA symptoms is higher among subjects with symptoms of nGOR. These findings provide evidence that nGOR may play a role in the genesis of respiratory symptoms and diseases.

  • 39. Eriksson, Berne
    et al.
    Stridsman, Caroline
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Avdelningen för medicin. Department of Health Sciences, Division of Nursing, Luleå University of Technology, Luleå.
    Nilsson, Ulf
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Avdelningen för medicin.
    Strandkvist, Viktor
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin. Division of health and rehabilitation, Department of health science, Luleå University of Technology, Luleå.
    Backman, Helena
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin.
    High prevalence of COPD among adults with heart disease2019Ingår i: European Respiratory Journal, ISSN 0903-1936, E-ISSN 1399-3003, Vol. 54Artikel i tidskrift (Övrigt vetenskapligt)
  • 40.
    Eriksson, Linda
    et al.
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Medicin.
    Schagatay, Filip
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin.
    Sjöström, Rita
    Umeå universitet, Medicinska fakulteten, Institutionen för samhällsmedicin och rehabilitering.
    Soderstrom, Lars
    Hanstock, Helen
    Sandström, Thomas
    Department of Medicine, Respiratory & allergy unit, Umeå university hospital, Umeå, Sweden.
    Stenfors, Nikolai
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Medicin.
    Symptoms of moderate exercise in subzero temperatures - An experimental exposure study2018Ingår i: European Respiratory Journal, ISSN 0903-1936, E-ISSN 1399-3003, Vol. 52Artikel i tidskrift (Övrigt vetenskapligt)
    Abstract [en]

    Humans react to cold with various symptoms. Previous studies enquiring about symptoms during cold exposure have for the most part been population based studies using questionnaries and have focused on a narrow spectrum of symptoms. The purpose of this study was to study the effect of cold air and physical exercise on a wide range of symptoms in healthy individuals.

    A total of 31 healthy subjects were experimentally exposed to +10 °C and -10 °C in an environmental chamber for one hour, on two separate occasions. During each exposure, subjects performed an intermittent moderate-intensity running protocol between 62-78% of maximal oxygen consumption (VO2 max). At five timepoints, before, during and after the exposures, subjects were asked about 18 symptoms and their intensity. The Borg CR10 scale was used to rate the intensity from 0 to 11, where 0 meant "none" and 11 meant "maximal". The sum of all five Borg CR10-scores were added together to form a single score for each exposure. Paired Wilcoxon signed-rank test was used for analysis. Data are presented as medians.

    Symptoms of cough, eye irritation, physical discomfort, and cold extremities were present only at -10 °C. Compared to exercise in +10 °C, exercise in -10 °C induced significantly higher summed symptom scores for eye irritation 2.0 vs 0.5 (p=0.011), rhinitis 12.0 vs 8.0 (p=0.000), nasal irritation 3.5 vs 0.5 (p=0.001), cold face 7.0 vs 1.0 (p=0.000), physical discomfort 6.5 vs 0.0 (p=0.000), and cold extremities 10.0 vs 0.5 (p=0.000).

    In healthy subjects, moderate-intensity exercise in -10 °C can induce and enhance the intensity of a wide range of symptoms. Symptoms of the lower airways were infrequent and mild.

  • 41.
    Eriksson Ström, Jonas
    et al.
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Avdelningen för medicin.
    Pourazar, Jamshid
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Avdelningen för medicin.
    Linder, Robert
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Avdelningen för medicin.
    Blomberg, Anders
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Avdelningen för medicin.
    Lindberg, Anne
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Avdelningen för medicin.
    Bucht, Anders
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Avdelningen för medicin. Swedish Defence Research Agency, Division of CBRN Defence and Security, Umeå, Sweden.
    Behndig, Annelie F.
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Avdelningen för medicin.
    Rapid decline in lung function in COPD is associated with decreased CD25brightFoxP3 regulatory T cells in BAL2019Ingår i: European Respiratory Journal, ISSN 0903-1936, E-ISSN 1399-3003, Vol. 54Artikel i tidskrift (Övrigt vetenskapligt)
  • 42.
    Forsberg, Bertil
    et al.
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Epidemiologi och folkhälsovetenskap.
    Stjernberg, Nils
    Falk, M
    Lundbäck, B
    Wall, Stig
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Epidemiologi och folkhälsovetenskap.
    Air pollution levels, meteorological conditions and asthma symptoms1993Ingår i: European Respiratory Journal, ISSN 0903-1936, E-ISSN 1399-3003, Vol. 6, nr 8, s. 1109-1115Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    We wanted to assess relations between the daily occurrence of asthma symptoms and fluctuations of air pollution concentrations and meteorological conditions. In a panel of 31 asthmatic patients residing in the town of Piteå in northern Sweden, severe symptoms of shortness of breath, wheeze, cough and phlegm were recorded in an asthma diary together with suspected causes. Sulphur dioxide, nitrogen dioxide, black smoke, relative humidity and temperature were used to evaluate the relationship to the environment. By using multivariate analyses, we found that daily variations in the particulate pollution levels, indicated by black smoke levels below the criteria limits, had significant effects on the risk of developing severe symptoms of shortness of breath. This association was stronger among 10 subjects, who had at least five incident days with severe shortness of breath. Meteorological conditions were not significant in the multivariate models. Cough and phlegm did not show significant relationships to any environmental condition that was evaluated. Only one-third of the subjects reported, at least once during the study, symptoms believed to be related to air pollutants, although we found significant correlations between the pollution levels and the frequency of pollution-related symptoms. We conclude that an association has been established for black smoke as pollutant and shortness of breath as respiratory symptom, and that in certain asthmatics, effects were occurring at lower particulate levels than suggested previously.

  • 43.
    Forsberg, Bertil
    et al.
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Epidemiologi och folkhälsovetenskap.
    Stjernberg, Nils
    National Institute for Working Life, Umeå, Sweden.
    Linné, R
    Landskrona Hospital, Landskrona, Sweden.
    Segerstedt, Bo
    Umeå universitet, Samhällsvetenskapliga fakulteten, Handelshögskolan vid Umeå universitet (USBE).
    Wall, Stig
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Epidemiologi och folkhälsovetenskap.
    Daily air pollution levels and acute asthma in southern Sweden1998Ingår i: European Respiratory Journal, ISSN 0903-1936, E-ISSN 1399-3003, Vol. 12, nr 4, s. 900-905Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    This study aimed to investigate the association between daily air pollution levels and the occurrence of acute respiratory signs and symptoms among people with asthma or asthma-like problems.

    Thirty eight subjects in the southern Swedish city of Landskrona kept a daily diary for 10 weeks. The daily prevalence of symptoms, supplementary bronchodilator use and peak flow deviations were compared with measurements of environmental nitrogen dioxide (NO2), sulphur dioxide, temperature and humidity in the city.

    The occurrence of severe asthma, both during the day and during the evening, was significantly positively associated with the concurrent 24 h average concentration of NO2, which never exceeded 72 microg x m(-3). A correlation of borderline significance was found between the use of on-demand medication and the NO2 level. However, peak flow deviations were not associated with air pollution or weather conditions, which may be explained by the beneficial effect of bronchodilators used by 28 of the subjects.

    The results of this study confirm those of some earlier studies and suggest that aggravation of asthma is related to daily variations in air quality, as indicated by relatively low ambient concentrations of nitrogen dioxide. These results also indicate that it may be appropriate to examine severe asthma symptoms separately.

  • 44.
    Franklin, Karl
    Umeå universitet, Medicinsk fakultet, Folkhälsa och klinisk medicin. Umeå universitet, Medicinsk fakultet, Folkhälsa och klinisk medicin, Lungmedicin.
    From the author2007Ingår i: European Respiratory Journal, ISSN 0903-1936, E-ISSN 1399-3003, Vol. 30, nr 5, s. 1023-1024Artikel i tidskrift (Övrigt vetenskapligt)
  • 45.
    Franklin, Karl
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Lungmedicin. Umeå universitet, Medicinska fakulteten, Institutionen för kirurgisk och perioperativ vetenskap, Kirurgi.
    Sleep apnoea screening in heart failure? Not until benefit is proven!2007Ingår i: European Respiratory Journal, ISSN 0903-1936, E-ISSN 1399-3003, Vol. 29, nr 6, s. 1073-1074Artikel i tidskrift (Refereegranskat)
  • 46.
    Franklin, Karl A.
    et al.
    Umeå universitet, Medicinska fakulteten, Institutionen för kirurgisk och perioperativ vetenskap, Kirurgi.
    Sahlin, Carin
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Lungmedicin.
    Stenlund, Hans
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Epidemiologi och global hälsa.
    Lindberg, Eva
    Sleep apnoea is a common occurrence in females2013Ingår i: European Respiratory Journal, ISSN 0903-1936, E-ISSN 1399-3003, Vol. 41, nr 3, s. 610-615Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Obstructive sleep apnoea (OSA) is primarily regarded as a male disorder, presenting with snoring, daytime sleepiness and cardiovascular disease. We aimed to determine the frequency of sleep apnoea among females in the general population. We investigated 400 females from a population-based random sample of 10,000 females aged 20-70 yrs. They answered a questionnaire and performed overnight polysomnography. OSA (apnoea/hypopnoea index (AHI) >= 5) was found in 50% (95% CI 45-55%) of females aged 20-70 yrs. Sleep apnoea was related to age, obesity and hypertension, but not to daytime sleepiness. Severe sleep apnoea (AHI >= 30) was present in 14% (95% CI 8.1-21%) of females aged 55-70 yrs and in 31% (95% CI 12-50%) of obese females with a body mass index of >= 30 kg.m(-2) aged 55-70 yrs. Sleep apnoea with daytime sleepiness and sleep apnoea with hypertension were observed as two different phenotypes of OSA. OSA occurs in 50% of females aged 20-70 yrs. 20% of females have moderate and 6% severe sleep apnoea. Sleep apnoea in females is related to age, obesity and hypertension, but not to daytime sleepiness. When searching for sleep apnoea in females, females with hypertension or obesity should be investigated.

  • 47.
    Frykholm, Erik
    et al.
    Umeå universitet.
    Gephine, Sarah
    Saey, Didier
    Van Hees, Hieronymus W. H.
    Klijn, Peter
    Maltais, Francois
    Lemson, Arthur
    Nyberg, Andre
    Umeå universitet.
    Test-retest reliability of three strategies to measure quadriceps muscle endurance in people with COPD2018Ingår i: European Respiratory Journal, ISSN 0903-1936, E-ISSN 1399-3003, Vol. 52Artikel i tidskrift (Övrigt vetenskapligt)
    Abstract [en]

    Despite its clinical relevance, there is no consensus on how to measure quadriceps muscle endurance in people with COPD. Moreover, the reliability of available measurement strategies are only partly known.

    Aim: To determine test-retest reliability and feasibility of isokinetic, isometric and isotonic protocols to assess quadriceps muscle endurance in people with COPD.

    Method: Fifty nine participants (FEV1 of predicted 55±18%, age 67±8 years) were included and tested in an interday multicentre test-retest design with test occasions separated by 5-9 days. Quadriceps muscle endurance was assessed using isokinetic, isometric and isotonic knee extension protocols controlled by a computerized dynamometer. Relative reliability was determined by intra-class correlation coefficient (ICC)( two-way mixed effects, absolute agreement, single measurement) and absolute reliability by standard error of measurement (SEM).

    Result: Isokinetic measurements demonstrated very high relative reliability (ICC: [95% confidence interval] 0.97 [0.94-0.99]), and isometric and isotonic demonstrated high relative reliability (0.89 [0.79-0.94], and 0.89 [0.82-0.94], respectively). Mean values across test-retest occasions were 2122 joules, 49 seconds, and 29 repetitions, for isokinetic, isometric and isotonic measurements, respectively. Corresponding SEM values were 150 joules, 7 seconds, and 5 repetitions. All three measurement strategies were feasible with an average time consumption of less than 10 minutes and no major adverse events.

    Conclusion: The results indicate that isokinetic, isotonic and isometric measurements of quadriceps muscle endurance are reliable and feasible in people with COPD.

  • 48.
    Frykholm, Erik
    et al.
    Umeå universitet, Medicinska fakulteten, Institutionen för samhällsmedicin och rehabilitering, Avdelningen för fysioterapi.
    Pereira Lima, Vanessa
    Selander, Hanna-Vega
    Umeå universitet, Medicinska fakulteten, Institutionen för samhällsmedicin och rehabilitering, Avdelningen för fysioterapi.
    Nyberg, Andre
    Umeå universitet, Medicinska fakulteten, Institutionen för samhällsmedicin och rehabilitering, Avdelningen för fysioterapi.
    Janaudis-Ferreira, Tania
    Physiological and symptomatic responses to arm versus leg activity in people with COPD: a systematic review and meta-analysis2019Ingår i: European Respiratory Journal, ISSN 0903-1936, E-ISSN 1399-3003, Vol. 54Artikel i tidskrift (Övrigt vetenskapligt)
  • 49.
    Frølich, Andreas
    et al.
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Avdelningen för medicin.
    Kumar, Abhinav
    Bicer, Elif Melis
    Behndig, Annelie F.
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Avdelningen för medicin.
    Blomberg, Anders
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Avdelningen för medicin.
    Mudway, Ian
    Age-related changes in the expression and oxidation of proteins in human respiratory tract lining fluids (RTLF)2019Ingår i: European Respiratory Journal, ISSN 0903-1936, E-ISSN 1399-3003, Vol. 54Artikel i tidskrift (Övrigt vetenskapligt)
  • 50.
    Gaine, Sean
    et al.
    National Pulmonary Hypertension Unit, Mater Misericordiae University Hospital, Dublin, Ireland.
    Escribano, Pilar
    Pulmonary Hypertension Unit, Cardiology Department, CIBERCV, Hospital 12 de Octubre, Madrid, Spain.
    Biedermann, Patricia
    Actelion Pharmaceuticals Ltd, Allschwil, Switzerland.
    Muller, Audrey
    Actelion Pharmaceuticals Ltd, Allschwil, Switzerland.
    Sun, Hong
    Actelion Pharmaceuticals Ltd, Allschwil, Switzerland.
    Söderberg, Stefan
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Kardiologi.
    Lange, Tobias J.
    University Medical Center Regensburg, Regensburg, Germany.
    Risk status at selexipag initiation in pulmonary arterial hypertension (PAH): Insights from EXPOSURE2020Ingår i: European Respiratory Journal, ISSN 0903-1936, E-ISSN 1399-3003, Vol. 56Artikel i tidskrift (Övrigt vetenskapligt)
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