Key result
The point prevalence of atrial fibrillation was 0.9%, and it was significantly associated with male gender (OR 4.98) and increasing age.
Why the study?
Reports on the prevalence of AF in the past decade are scarce, and whether the prevalence of AF increased during the last decade in Switzerland remains uncertain.
Cross-Sectional (n=4,616)
No
The point prevalence of AF in a Swiss population-based cohort was low (0.9%) but increased significantly with age and male sex, highlighting the importance of demographic factors in AF epidemiology.
Answers are grounded in this paper and cite their sources.
Should not yet inform AF screening practices; hypothesis-generating for demographic risk associations pending prospective data.
BACKGROUND: Atrial fibrillation (AF) is the most common arrhythmia worldwide and is associated with increased morbi-mortality. The prevalence of AF in the Western world is increasing; however, reports on the prevalence of AF in the past decade are scarce, and whether the prevalence of AF increased during the last decade in Switzerland remains uncertain. Therefore, using data from a Swiss population-based sample, we aimed to assess the point prevalence of AF from 2014 to 2017 and to investigate determinants of AF. METHODS: A cross-sectional analysis of 4616 Caucasian participants aged 45-86 years (55% women) from a population-based sample was designed to explore the point prevalence and determinants of cardiovascular risk factors in the population of Lausanne, Switzerland. AF was assessed using electrocardiography (ECG) between 2014 and 2017. RESULTS: Overall, the point prevalence of AF was 0.9% (95% confidence interval [95% CI]: 0.7-1.2%) and the combined AF + atrial flutter (AFL) point prevalence was 1.1% (95% CI: 8.4-1.5%). The point prevalence of AF was higher among men (81% vs. 19% in women) and increased with age, reaching 3.1% in participants aged ≥ 80. In multivariable analysis, male gender (odds ratio and 95% CI: 4.98 [1.01-24.6]) and increasing age (2.86 [1.40-5.87] per decade) were associated with AF. CONCLUSION: The point prevalence of AF and of AF + AFL, assessed between 2014 and 2017 in the city of Lausanne (Switzerland), was low but increased with age and in men.
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Samim et al. (2021) conducted a cross-sectional in Atrial fibrillation (n=4,616). Male gender vs. Female gender was evaluated on Atrial fibrillation (OR 4.98, 95% CI 1.01-24.6, p=0.049). The point prevalence of atrial fibrillation was 0.9%, and it was significantly associated with male gender (OR 4.98) and increasing age.
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