黑龙江省哈尔滨市社区中老年人骨关节炎流行病学调查

An epidemiological investigation on the prevalence of knee osteoarthritis in the middle-aged people in Heilongjiang Province

目的了解黑龙江省哈尔滨市社区年龄≥40岁中老年人群膝骨关节炎的患病情况。方法采用多阶段整群随机抽样方法,对所选取的社区中416名常住居民进行问卷调查和体格检查。结果膝骨关节炎男女患病率分别为7.23%和10.09%,女性患病率随年龄的增加而逐渐增高(X^2=8.12,P=0.012)。膝骨关节炎患者的体质指数(body mass index,BMI)与未患膝骨关节炎者的差异有统计学意义(t=1.07,P=0.038)。经Kendall相关分析,年龄与影像学分级之间呈现正相关关系(r=0.19,P=0.037)。日常慢跑可能是膝骨关节炎发病的保护因素(OR=0.67,95%CI:0.33~0.79)。结论 2013年该地区40岁及以上中老年人群膝骨关节炎患病率相比2005年有所下降,女性患病率仍然高于男性。合理适度的运动对膝骨关节炎的预防有重要意义。

Objective The study was conducted to investigate the prevalence of knee osteoarthritis in Harbin, Heilongjiang Province. Methods A cross-sectional study was performed among 416 community residents aged I〉40 with multi-stage sampling . All subjects were given a questionnaire and asked to undergo a physical examination. Results The prevalence of knee osteoarthritis was 7.23% for men and 10. 09% for women, respectively. The prevalence of knee osteo- arthritis increased with aging among women people（ x2 = 8. 12, P = 0. 012）. The body mass index （BMI） of osteoarthritis patients was significantly higher than that of non-osteoarthritis （ t = 1. 07, P = 0. 038 ）. Positive association between age and radiological disease severity was approved by Kendall correlation analysis （r = 0. 19 ,P = 0. 037 ）. Jogging might be one of those protective factors（ OR =0. 67,95% Cl：0. 33-0. 79）. Conclusions The prevalence of knee osteoarthritis in 2013 de- creased as compared to that in 2005. The prevalence in female was higher than that in male. Proper and moderate physical activities may be crucial in the prevention of knee osteoarthritis development.