Abstract P101: Associations of Adiposity and Atrial Fibrillation in Older Adults: the Health ABC Study

Introduction: Obesity is a well-recognized, modifiable risk factor for atrial fibrillation (AF). Limited studies have examined adiposity measures other than body mass index (BMI) and AF risk. We examined associations of adiposity measures with incident AF in a biracial cohort of older adults. Given the extensive racial differences between obesity and AF, we assessed for racial differences in relating adiposity and AF. Methods: The Dynamics of Health, Aging, and Body Composition Study is a prospective cohort of 3,075, community-dwelling, older adults. Adiposity measures were determined using anthropometry [BMI and abdominal circumference (AC)], CT [subcutaneous and visceral fat area (SAT, VAT)] and DXA (total and percent fat mass). AF was identified from the Center for Medicare and Medicaid Services. We determined the associations between adiposity measures and the 10-year risk of incident AF using Cox proportional hazards models. We examined for interactions between race and adiposity measures with the ou...