• Mayo Clinic proceedings · Jun 2023

    Height Explains Sex Difference in Atrial Fibrillation Risk: Copenhagen General Population Study.

    • Jacob Louis Marott, Magnus T Jensen, Marianne Benn, KnegtMartina Chantal deMCCopenhagen City Heart Study, Bispebjerg and Frederiksberg Hospital, Copenhagen University Hospital, Copenhagen, Denmark; Department of Cardiology, and Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark., James H O'Keefe, Carl J Lavie, Peter Schnohr, Børge Grønne Nordestgaard, and JensenGorm BojeGBCopenhagen City Heart Study, Bispebjerg and Frederiksberg Hospital, Copenhagen University Hospital, Copenhagen, Denmark; National Institute of Public Health, University of Southern Denmark, Copenhagen, Denmark. Electronic address: gorm.bo.
    • Copenhagen City Heart Study, Bispebjerg and Frederiksberg Hospital, Copenhagen University Hospital, Copenhagen, Denmark; The Copenhagen General Population Study, Herlev and Gentofte Hospital, Copenhagen University Hospital, Copenhagen, Denmark.
    • Mayo Clin. Proc. 2023 Jun 1; 98 (6): 846855846-855.

    ObjectiveTo test the hypothesis that the increased risk of atrial fibrillation (AF) in men compared with women is explained by height.MethodsFrom the Copenhagen General Population Study, we included 106,207 individuals (47,153 men and 59,054 women) from 20 to 100 years of age, without a prior diagnosis of AF, examined between November 25, 2003, and April 28, 2015. The main outcome was AF incidence from national hospital registers until April 2018. The association of risk factors with AF incidence was assessed by cause-specific Cox proportional hazards regression and Fine-Gray subdistribution hazards regression analysis.ResultsDuring a maximum of 14.4 years of follow-up (median, 8.9 years), incident AF was observed in 3449 men and 2772 women with 845 (95% CI, 815 to 875) and 514 (95% CI, 494 to 535) events per 100,000 person-years, respectively. The age-adjusted hazard of incident AF was 63% (95% CI, 55% to 72%) higher in men compared with women. Risk factors for AF were generally similar in men and women, except men were taller than women (179 cm vs 166 cm, respectively; P<.001). When controlling for height, the difference in hazard of incident AF between sexes disappeared. For population attributable risk of AF, height was the most important risk factor investigated and explained 21% and 19% of the risk of incident AF in men and women, respectively.ConclusionA 63% higher risk of incident AF in men compared with women is explained by differences in height.Copyright © 2023 Mayo Foundation for Medical Education and Research. Published by Elsevier Inc. All rights reserved.

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