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Epidemiology of heart failure and trends in diagnostic work-up: a retrospective, population-based cohort study in Sweden
Umeå University, Faculty of Medicine, Department of Public Health and Clinical Medicine. Heart Centre, Umeå University Hospital, Umeå, Sweden.
Umeå University, Faculty of Medicine, Department of Public Health and Clinical Medicine. Research Unit, MedicineGeriatric, Skellefteå County Hospital, Sweden.
Umeå University, Faculty of Medicine, Department of Public Health and Clinical Medicine. Research Unit, MedicineGeriatric, Skellefteå County Hospital, Sweden.
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2019 (English)In: Clinical Epidemiology, ISSN 1179-1349, E-ISSN 1179-1349, Vol. 11, p. 231-244Article in journal (Refereed) Published
Abstract [en]

Purpose: The purpose of this study was to examine the trends in heart failure (HF) epidemiology and diagnostic work-up in Sweden.

Methods: Adults with incident HF (>= 2 ICD-10 diagnostic codes) were identified from linked national health registers (cohort 1, 2005-2013) and electronic medical records (cohort 2, 2010-2015; primary/secondary care patients from Uppsala and Vasterbotten). Trends in annual HF incidence rate and prevalence, risk of all-cause and cardiovascular disease (CVD)-related 1-year mortality and use of diagnostic tests 6 months before and after first HF diagnosis (cohort 2) were assessed.

Results: Baseline demographic and clinical characteristics were similar for cohort 1 (N=174,537) and 2 (N=8,702), with mean ages of 77.4 and 76.6 years, respectively; almost 30% of patients were aged >= 85 years. From 2010 to 2014, age-adjusted annual incidence rate of HF/1,000 inhabitants decreased (from 3.20 to 2.91, cohort 1; from 4.34 to 3.33, cohort 2), while age-adjusted prevalence increased (from 1.61% to 1.72% and from 2.15% to 2.18%, respectively). Age-adjusted 1-year all-cause and CVD-related mortality was higher in men than in women among patients in cohort 1 (all-cause mortality hazard ratio [HR] men vs women 1.07 [95% CI 1.06-1.09] and CVD-related mortality subdistribution HR for men vs women 1.04 [95% CI 1.02-1.07], respectively). While 83.5% of patients underwent N-terminal pro-B-type natriuretic peptide testing, only 36.4% of patients had an echocardiogram at the time of diagnosis, although this increased overtime. In the national prevalent HF population (patients with a diagnosis in 1997-2004 who survived into the analysis period; N=273,999), death from ischemic heart disease and myocardial infarction declined between 2005 and 2013, while death from HF and atrial fibrillation/flutter increased (P<0.0001 for trends over time).

Conclusion: The annual incidence rate of HF declined over time, while prevalence of HF has increased, suggesting that patients with HF were surviving longer over time. Our study confirms that previously reported epidemiological trends persist and remain to ensure proper diagnostic evaluation and management of patients with HF.

Place, publisher, year, edition, pages
Dove medical press , 2019. Vol. 11, p. 231-244
Keywords [en]
diagnosis, heart failure, incidence rate, mortality, prevalence, real-world
National Category
Cardiac and Cardiovascular Systems Public Health, Global Health, Social Medicine and Epidemiology
Identifiers
URN: urn:nbn:se:umu:diva-158769DOI: 10.2147/CLEP.S170873ISI: 000464038900001PubMedID: 30962724OAI: oai:DiVA.org:umu-158769DiVA, id: diva2:1314306
Available from: 2019-05-08 Created: 2019-05-08 Last updated: 2019-05-08Bibliographically approved

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Lindmark, KristerBoman, KurtOlofsson, Mona

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