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Clin Endocrinol (Oxf). 1992 Mar;36(3):225-8.

Assessment of the risk of post-menopausal osteoporosis using clinical factors.

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1
Service d'Endocrinologie, UF Maladies Osseuses et Métaboliques, CHU Purpan, Toulouse, France.

Abstract

OBJECTIVE:

We wished to assess the predictive value of the main clinical risk factors for osteoporosis over a low vertebral bone mineral density.

DESIGN:

A cross-sectional study was made of a cohort of peri and post-menopausal women (mean age, 54 years).

PATIENTS:

One thousand, five hundred and sixty-five normal white women were selected from among the women referred to our menopause clinic for screening and prevention of osteoporosis.

MEASUREMENTS:

Each woman had replied to a detailed standardized questionnaire including the main clinical risk factors and had her bone density measured using dual photon absorptiometry.

RESULTS:

The predictive value for a low vertebral bone mineral density (2 SD below the normal young adult value) was assessed for 15 historical and anthropometric variables. Among these, age, age at menarche, weight, height, menopause and its duration, were independent predictors of a low bone mineral density, in a multiple logistic regression analysis. Odds ratios were calculated for each of these variables, weight, menopause and its duration being the three most influential variables. At best this model makes it possible to correctly classify 73% of women with a low bone mineral density and 66% of those with a normal bone mineral density. If this model is used for screening, it could possibly save 25% of bone densitometry examinations.

CONCLUSIONS:

Direct bone densitometry remains indispensable to assess osteoporosis risk, since risk factors alone are not sufficient for accurate delineation of either low or normal bone mineral density.

[Indexed for MEDLINE]

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