Prevalence of osteoarthritis and its risk factors among rural minority residents

Objective To investigate the status of osteoarthritis(OA) and its influencing factors among ruralm inority residents in Guizhou province for providing reference of osteoarthritis diagnostic criteria.Methods A total of 2866 residents aged 20-86 years randomly selected from ruralm inority in 20 villages were enrolled in a survey in Guizhou province with questionnaire survey,physical and X-ray examination.SPSS 13.0 was used in data analysis.Results The prevalence rate of OA was 27.98% and the standardization rate of OA was 281.9%.The clinic resea rches showed that the prevalence rate of OA in men was 21/48% with a standardization rate of 21.62%,and those rates of women were 39.88% and 40.03%.The women had a significant higher prevalence of OA than men(χ²=689.96,P < 0.01).The prevalence of OA increased obviously with the increment of age(χ²=263.27,P < 0.01).Logistic regression analysis suggested that the related factors of OA were age,sex,body mass index(BMI) and resident place1.Conclusion Residents with BMI\24,with working intencity of 3 degree or more,residing at top of mountain,and at age of 50 years or more are the populations at higher risk of OA in Guizhou minority area.