Abstract：Objective To evaluate the value of Osteoporosis Self-assessment Tool for Asians (OSTA) index in the screening of osteoporosis. Methods A questionnaire survey was conducted among the elderly aged 65 years and above and signed up for establishing health records in a community in Shanghai. Their height, body weight and bone mineral denstity were meansured, and the surveyed results were stratifiedly analyzed according to gender and age groups. Receiver operating characteristic (ROC) curve was used for evaluating the screening value of OSTA index in the prediction of osteoporosis. Results A total of 5,832 elderly persons aged 65 years and above were investigated in this study, and the prevalence rate of osteoporosis was 30.37%. There were statistically significant differences in the prevalence of osteoporosis as well as in the OSTA high risk grade among different gender and age groups (both P<0.001). The rank correlation coefficients of bone mineral density grading and OSTA risk grading in the age groups of 65-<70 years and 70-<80 years were all greater than 0 (P<0.05). With T value of bone mineral density as the gold standard, the areas of ROC curve of osteoporosis evaluated by OSTA index were between 0.460 and 0.570. The sensitivity and specificity of OSTA to screen osteoporosis in the females of the age group of 65-<70 years were 0.902 and 0.093 respectively, and those in the males of the age group of 65-<70 years were 1.000 and 0.096 respectively. The sensitivity and specificity of OSTA to screen osteoporosis in the females of the age group of 80 years and above were 0.125 and 0.854 respectively. There were statistically significant differences in the OSTA index among different gender and age groups and bone mineral density grading (P<0.001). Conclusions OSTA index is considered as an important tool for screening and assessment of osteoporosis, but its screening value in diagnosing osteoporosis in the community elderly is not high. The grading standard should be reset based on age and gender groups when OSTA index is used for screening osteoporosis in the elderly.
郁爱平, 汪天英, 封蕾, 瞿红国, 宋徽江. OSTA对65岁及以上老人骨质疏松的筛查价值[J]. 实用预防医学, 2017, 24(9): 1128-1131.
YU Ai-ping, WANG Tian-ying, FENG Lei, QU Hong-guo, SONG Hui-jiang. Sreening value of OSTA for osteoporosis in the elderly aged 65 years and above. , 2017, 24(9): 1128-1131.
2017, Vol. 24 
