Epidemiological study on osteoarthritis among community-dwelling women

我们研究了居住在日本长崎县大岛镇的591名妇女骨性关节炎和关节疼痛的患病率及其相关性。通过问卷调查的方式收集关节疼痛信息。受试者被问到，在过去的一个月里，你的哪些关节在大多数时间里有过疼痛、肿胀、疼痛或压痛的经历？在每个关节(肩部、肘部、手腕、手/手指、臀部、膝盖、脚踝、脚、颈部、上背部、中背部和下背部)的骨骼插图上提供了身体两侧的响应框(是和否)。拍摄膝关节X线片(前后负重)。测量身高、体重，计算体重指数(BMI)。膝痛(34.8%)、腰痛(26.6%)和肩痛(16.4%)是最常见的关节痛部位。三分之一的女性患有膝骨性关节炎。40~49岁年龄组无一例发生膝关节骨性关节炎，但患病率随年龄增长而增加，80岁及以上年龄组有60%的女性发生膝关节骨关节炎。20%的女性有症状性膝骨性关节炎。患病率随着年龄的增长而增加，40%的人有症状的膝骨性关节炎。多因素Logistic回归分析显示，放射学或症状性膝骨性关节炎与年龄增长、肥胖、膝关节损伤史和体力活动增加有关。以前的研究已经报道，年龄增加、肥胖和膝关节损伤史是膝关节骨关节炎的危险因素，这与我们的结果是一致的。体力活动的增加可能通过关节软骨的附加负荷导致膝骨性关节炎的发生。

We studied 591 women living in Oshima town, Nagasaki Prefecture, Japan on the prevalence of osteoarthritis and joint pains and its association. Information on painful joints was collected by questionnaire. Subjects were asked Which of your joints have ever been painful, swollen, aching, or tender on most days for the past one month? Response boxes (yes and no) for both sides of the body were provided on an illustration of the skeleton for each joint (shoulders, elbows, wrists, hands/fingers, hips knees, ankles, feet, neck, upper back, mid-back, and low back). Radiographs were obtained of knees (antero-posterior weightbearing). Height and weight were measured, and body mass index (BMI) was calculated. Knee (34.8%), low back (26.6%) and shoulder (16.4%) pain were the most prevalent locations of joint pain. One third of women had radiographic osteoarthritis of the knee. None of the women had radiographic knee osteoarthritis in age group of 40-49 years, but the prevalence increased with age, and 60% of women had knee osteoarthritis in age group of 80 and over. Twenty percent of the women had symptomatic knee osteoarthritis. The prevalence increased with age, and 40% had symptomatic knee osteoarthritis. Multiple variable logistic regression analysis revealed that radiographic or symptomatic knee osteoarthritis was associated with increasing age, obesity, history of knee injury and increased phsical activity. Previous studies have been reported that increasing age, obesity and history of knee injury were risk factors for knee osteoarthritis, which is consistent with our results. Increased physical activity may attribute to development of knee osteoarthritis through additive loading to joint cartilage.