Obesity and Falls in a Prospective Study of Older Men: The Osteoporotic Fractures in Men Study

Autor: Smriti Shrestha, Lynn M. Marshall, Thuy-Tien L. Dam, Osteoporotic Fractures in Men (MrOS) Study, Carrie M. Nielson, Eric S. Orwoll, Christine G. Lee, Peggy M. Cawthon, Elizabeth R. Hooker, Marcia L. Stefanick, Melanie Abrahamson, K E Ensrud
Rok vydání: 2016
Předmět:
Zdroj: Journal of Aging and Health. 29:1235-1250
ISSN: 1552-6887
0898-2643
DOI: 10.1177/0898264316660412
Popis: Objective: The aim of this study is to evaluate fall rates across body mass index (BMI) categories by age group, considering physical performance and comorbidities. Method: In the Osteoporotic Fractures in Men (MrOS) study, 5,834 men aged ≥65 reported falls every 4 months over 4.8 (±0.8) years. Adjusted associations between BMI and an incident fall were tested using mixed-effects models. Results: The fall rate (0.66/man-year overall, 95% confidence interval [CI] = [0.65, 0.67]) was lowest in the youngest, normal weight men (0.44/man-year, 95% CI = [0.41, 0.47]) and greatest in the oldest, highest BMI men (1.47 falls/man-year, 95% CI = [1.22, 1.76]). Obesity was associated with a 24% to 92% increased fall risk in men below 80 ( ptrend ≤ .0001, p for interaction by age = .03). Only adjustment for dynamic balance test altered the BMI–falls association substantially. Discussion: Obesity was independently associated with higher fall rates in men 65 to 80 years old. Narrow walk time, a measure of gait stability, may mediate the association.
Databáze: OpenAIRE