Prevalence of radiographic knee osteoarthritis and its association with knee pain in the elderly of Japanese population-based cohorts: The ROAD study

ObjectiveWe investigated the prevalence of radiographic knee osteoarthritis (OA) and knee pain in the Japanese elderly using a large-scale population of a nationwide cohort study, Research on Osteoarthritis Against Disability (ROAD), and examined their association.MethodsFrom the baseline survey of the ROAD study, 2,282 participants ≥60 years (817 men and 1,465 women) living in urban, mountainous and seacoast communities were analyzed. The...