Usual physical activity and hip fracture in older men: an application of semiparametric methods to observational data.

ABSTRACT: Few studies have examined the relation between usual physical activity level and rate of hip fracture in older men or applied semiparametric methods from the causal inference literature that estimate associations without assuming a particular parametric model. Using the Physical Activity Scale for the Elderly, the authors measured usual physical activity level at baseline (2000-2002) in 5,682 US men ≥65 years of age who were enrolled in the Osteoporotic Fractures in Men Study. Physical activity levels were classified as low (bottom quartile of Physical Activity Scale for the Elderly score), moderate (middle quartiles), or high (top quartile). Hip fractures were confirmed by central review. Marginal associations between physical activity and hip fracture were estimated with 3 estimation met

SUBMITTER: Mackey DC 

PROVIDER: S-EPMC3105440 | biostudies-literature | 2011 Mar

REPOSITORIES: biostudies-literature