[A study on osteoporosis screening tool for Chinese women].
摘要
OBJECTIVE: To establish an osteoporosis screening tool for Chinese 40-years-old or above women. METHODS: The T-score was calculated based on the mean bone mineral density (BMD) of 20-39 years women. Considering the result of dual-energy X-ray absorptiometry(DXA) as the golden criteria, the Bayes discriminant analysis was employed to explore the function. RESULTS: The formula of the screening tool for Chinese 40-years-old or above women as following:osteoporosis screenig tool for Chinese (OSTC):Weight-2 x age+50. OSTC< or =0 was classified into high risk, OSTC>0 was low risk. The hit rate of OSTC was 75.78%. The sensitivity is 76.8%. The specificity is 75.1%, Kappa value was 0.51(P= 0.000). That means the consistency of diagnosis result between OSTC and DXA was relatively good. CONCLUSION: OSTC is a simple tool. Just based on age and weight, it can evaluate the osteoporosis risk of Chinese 40-years-old or above women. But the effect of OSTC has not been proved by other dataset and should be tested further.