Zhang N, Shi Q, Zhang X
Peking Union Medical College Hospital, Beijing.
Zhonghua Nei Ke Za Zhi. 1995 Feb;34(2):84-7.
2,063 adult people of a Beijing suburban village were surveyed for osteoarthritis of the knees. Questionnaire was completed in all. 799 (38.7%) responded to have knee joint pain. 311 with knee joint pain and 212 without knee joint pain were selected randomly for X-ray films of the knees. In the former group, 79 showed osteoarthritic X-ray changes and were thus diagnosed as such, accounting 24.7% of those with knee pain. In the latter group, all were not diagnosed as clinical osteoarthritis, yet 54 (25.5%) showed also X-ray osteoarthritic changes. In both groups the X-ray osteoarthritic changes increased in parallel with increase of age, reaching 78% in those aged 60 and more in the former group and 67% in the latter group. 100 retired cadres were similarly surveyed but all had X-ray films of the knees taken. 51 of 100 responded knee pain, out of whom 49 (95.9%) showed X-ray osteoarthritic changes and were thus diagnosed as such. The overall prevalence rate of osteoarthritis of knee in rural population as judged by the 523 who had taken X-ray films (people with and without knee pain are not entirely proportional) is about 9.6% and that of 100 aged retired cadres is 49%. Those with X-ray knee osteoarthritic changes but without knee pain were not categorized as clinical osteoarthritic cases.
对北京郊区一个村庄的2063名成年人进行了膝关节骨关节炎调查。所有人都完成了问卷调查。799人（38.7%）回答有膝关节疼痛。随机选择311名有膝关节疼痛的人和212名无膝关节疼痛的人进行膝关节X线检查。在前一组中，79人显示出骨关节炎的X线改变，因此被诊断为骨关节炎，占膝关节疼痛者的24.7%。在后一组中，所有人均未被诊断为临床骨关节炎，但有54人（25.5%）也显示出X线骨关节炎改变。两组的X线骨关节炎改变均随年龄增长而增加，在前一组中60岁及以上者达到78%，在后一组中为67%。对100名退休干部进行了类似调查，但所有人都拍摄了膝关节X线片。100人中有51人回答有膝关节疼痛，其中49人（95.9%）显示出X线骨关节炎改变，因此被诊断为骨关节炎。根据523名拍摄了X线片的人（有膝关节疼痛和无膝关节疼痛的人并非完全成比例）判断，农村人口膝关节骨关节炎的总体患病率约为9.6%，100名老年退休干部的患病率为49%。有膝关节X线骨关节炎改变但无膝关节疼痛的人未被归类为临床骨关节炎病例。
