Determinants of bone mineral density in older men
Abstract
Osteoporosis is a significant health problem and contributor to disability and premature mortality among older men. Incidence rates for hip fracture have stabilized in women, but continue to increase in men. A major risk factor for hip fracture is bone mineral density level. The determinants of bone mineral density (BMD) are well defined in women, but not in men. The primary goal of the current research was to increase our understanding of the determinants of BMD of the proximal femur in a large community-based sample of older male volunteers. Eligibility requirements included age of 50 years or older, ambulatory, and not having undergone a bilateral hip replacement. Five hundred twenty-three men, mean mean age 66.6 years, met all eligibility requirements and participated in the Study of Osteoporotic Risk in Men or STORM. Information on demographics, medical history, anthropometry, leisure-time and occupational physical activity, muscular strength, cigarette smoking, alcohol consumption, dietary calcium intake, and medication use (thiazide diuretics and glucocorticoids) were obtained by questionnaire, interview, and examination, BMD of the proximal femur (femoral neck, greater trochanter, and Ward's triangle) was measured by dual-energy X-ray absorptiometry using the Hologic QDR-1000 and QDR-2000. The cross-sectional determinants of BMD included age, blond hair color, current body weight, thiazide diuretic use, historical physical activity, and quadriceps strength. Several…
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