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J Clin Endocrinol Metab. 2005 May;90(5):2787-93. Epub 2005 Feb 22.

Hip fracture in women without osteoporosis.

Author information

  • 1Bone and Mineral Research Unit, Department of Medicine, Oregon Health and Science University, 3181 S.W. Sam Jackson Park Road, Mail Code CR113, Portland, Oregon 97239, USA. s_wainwright@comcast.net

Abstract

The proportion of fractures that occur in women without osteoporosis has not been fully described, and the characteristics of nonosteoporotic women who fracture are not well understood. We measured total hip bone mineral density (BMD) and baseline characteristics including physical activity, falls, and strength for 8065 women aged 65 yr or older participating in the Study of Osteoporotic Fractures and then followed these women for hip fracture for up to 5 yr after BMD measurement. Among all participants, 17% had osteoporosis (total hip BMD T-score < or = -2.5). Of the 243 women with incident hip fracture, 54% were not osteoporotic at start of follow-up. Nonosteoporotic women who fractured were less likely than osteoporotic women with fracture to have baseline characteristics associated with frailty. Nevertheless, among nonosteoporotic participants, several characteristics increased fracture risk, including advancing age, lack of exercise in the last year, reduced visual contrast sensitivity, falls in the last year, prevalent vertebral fracture, and lower total hip BMD. These findings call attention to the many older women who suffer hip fracture but do not have particularly low antecedent BMD measures and help begin to identify risk factors associated with higher bone density levels.

PMID:
15728213
[PubMed - indexed for MEDLINE]
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