J Atr Fibrillation. 2019 Jun 30;12(1):2205. doi: 10.4022/jafib.2205. eCollection 2019 Jun.
Intermittent Nonhabitual Coffee Consumption and Risk of Atrial Fibrillation: The Multi-Ethnic Study of Atherosclerosis.
Journal of atrial fibrillation
Jennifer Xu, Wenjun Fan, Matthew J Budoff, Susan R Heckbert, Ezra A Amsterdam, Alvaro Alonso, Nathan D Wong
Affiliations
Affiliations
- University of California, Irvine Division of Cardiology, C240 Medical Sciences Irvine, CA 92629.
- Los Angeles Biomedical Research Institute, 1124 West Carson Street, Torrance, CA 90502.
- University of Washington Department of Epidemiology, Box 358085, 1730 Minor Avenue, Suite 1360, Seattle WA 98101.
- University of California Davis Medical Center Division of Cardiovascular Medicine, 4860 Y Street #2820, Sacramento, CA 95817.
- Department of Epidemiology, Rollins School of Public Health, Emory University, 1518 Clifton Road NE, Atlanta, GA 30322.
PMID: 31687073
PMCID: PMC6811341 DOI: 10.4022/jafib.2205
Abstract
BACKGROUND: Though it is a widely held belief that caffeinated beverages predispose individuals to arrhythmias, it is not clear whether regular coffee consumption is associated with development of atrial fibrillation (AF).
OBJECTIVE: We examined the association between long-term coffee consumption and development of AF in both habitual (≥0.5 cups of daily coffee) and nonhabitual (<0.5 cups/day) drinkers.
METHODS: A total of 5,972 men and women, aged 45-84 years and without a history of cardiovascular disease at baseline in the Multi-Ethnic Study of Atherosclerosis (MESA) were followed from 2000 to 2014 for incident AF with baseline coffee consumption assessed in 2000-2002 via a Food Frequency Questionnaire and divided into quartiles of 0 cups/day, >0 to <0.5 cups/day, ≥0.5 to 1.5 cups/day, and ≥1.5 cups/day.
RESULTS: Out of the 828 incident cases of AF, intermittent coffee consumption (>0 to 0.5 cups of daily coffee) was associated with a greater risk of incident AF (HR 1.22, 95% CI 1.01-1.48) relative to 0 cups/day in multivariable Cox proportional hazards models after adjustment for numerous AF risk factors. This relation was particularly pronounced in men (adjusted HR=1.36, 95% CI 1.04-1.77). Higher coffee consumption was not associated with AF risk (HR 1.03, 95%CI 0.93-1.14 for ≥0.5 to 1.5 cups/day and 1.05, 95%CI 0.97-1.13 for ≥1.5 cups/day).
CONCLUSIONS: While there appears to be no dose-response association between habitual coffee intake and AF risk, we found evidence that intermittent, but not habitual, coffee consumption is associated with a modestly increased risk of incident AF that deserves further study.
Keywords: Atrial Fibrillation; Caffeine; Cardiovascular Disease; Coffee; Epidemiology
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