Prevalence of radiographic hip osteoarthritis and its association with hip pain in Japanese men and women: the ROAD study

Although hip osteoarthritis (OA) is a major cause of hip pain and disability in elderly people, few epidemiologic studies have been performed. We investigated the prevalence of radiographic hip OA and its association with hip pain in Japanese men and women using a large-scale population of a nationwide cohort study, Research on Osteoarthritis/osteoporosis Against Disability (ROAD).From the baseline survey of the ROAD study, 2975 participants...