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Environmental risk factors related to the incidence of wheeze and asthma in adolescence
Umeå University, Faculty of Medicine, Department of Public Health and Clinical Medicine, Occupational and Environmental Medicine. (Arcum)
Umeå University, Faculty of Medicine, Department of Public Health and Clinical Medicine, Occupational and Environmental Medicine.
Umeå University, Faculty of Medicine, Department of Public Health and Clinical Medicine, Occupational and Environmental Medicine. (Arcum)
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2015 (English)In: Clinical and Experimental Allergy, ISSN 0954-7894, E-ISSN 1365-2222, Vol. 45, no 1, 184-191 p.Article in journal (Refereed) Published
Abstract [en]

BACKGROUND: Asthma is common among adolescents, but there are few population-based studies on the risk factors for incident asthma and wheeze at this age group OBJECTIVE: To study risk factors for incident asthma and wheeze in adolescence.

METHOD: Within the Obstructive Lung Disease In Northern Sweden (OLIN) studies, a cohort of 3430 school children (age 7-8y) was recruited in 1996. In the present study, this cohort was followed from age 12 to 19y. At baseline (age 12y), 3151 participated and skin prick tests (SPT) were performed. The cohort was resurveyed annually and risk factors for the cumulative incidence of asthma and wheeze from age 12 to19y were analysed using multivariate Cox regression.

RESULTS: Female sex (wheeze: HR1.4 95%CI 1.2-1.6; asthma: HR1.8 95%CI1.2-2.5) and a positive SPT to cat, dog or horse at baseline (wheeze: HR 1.6 95%CI 1.2-2.1; asthma: HR2.3 95%CI 1.4-4.0) were significantly associated with the cumulative incidence of wheeze and asthma. Increasing numbers of siblings were inversely related to the incidence of wheeze (HR0.9 95%CI 0.8-0.97) and asthma (HR0.8 95%CI 0.7-0.97). Parental asthma was related to the incidence of asthma (HR 1.8 95%CI 1.2-2.6) while ever smoking (HR 2.0 95%CI 1.6-2.4) and house dampness (HR 1.3 95%CI 1.1-1.6) were risk factors for the incidence of wheeze. Maternal ETS exposure increased the risk of incident asthma in non-sensitized subjects (HR 1.9 95%CI 1.0-3.7).

CONCLUSION AND CLINICAL RELEVANCE: Several environmental risk factors related to the incidence of asthma and wheeze in adolescence were identified and may be possible targets for intervention and prevention.

Place, publisher, year, edition, pages
2015. Vol. 45, no 1, 184-191 p.
National Category
Environmental Health and Occupational Health
Identifiers
URN: urn:nbn:se:umu:diva-91518DOI: 10.1111/cea.12335ISI: 000346910800021PubMedID: 24773259OAI: oai:DiVA.org:umu-91518DiVA: diva2:736869
Available from: 2014-08-10 Created: 2014-08-10 Last updated: 2017-05-03Bibliographically approved

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Hedman, LinnéaAndersson, MartinBjerg, AndersForsberg, BertilRönmark, Eva

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