Prevalence of radiographic knee osteoarthritis and its association with knee pain in the elderly of Japanese population-based cohorts: The ROAD study S. Muraki, H. Oka, T. Akune, A. Mabuchi, Y. En-yo, M. Yoshida, A. Saika, T. Suzuki, H. Yoshida, H. Ishibashi, S. Yamamoto, K. Nakamura, H. Kawaguchi, N. Yoshimura Osteoarthritis and Cartilage Volume 17, Issue 9, Pages 1137-1143 (September 2009) DOI: 10.1016/j.joca.2009.04.005 Copyright © 2009 Osteoarthritis Research Society International Terms and Conditions
Fig. 1 (A) Percentage of subjects with radiographic knee OA (KL≥2 or KL≥3) in each age stratum (<65, 65–69, 70–74, 75–59 and ≥80). (B) Percentage of subjects with knee pain and radiographic knee OA (KL≥2 or KL≥3) with pain in each age stratum. The number of subjects in each age stratum is shown in parentheses. Osteoarthritis and Cartilage 2009 17, 1137-1143DOI: (10.1016/j.joca.2009.04.005) Copyright © 2009 Osteoarthritis Research Society International Terms and Conditions
Fig. 2 Percentage of subjects with knee pain in each subgroup classified by the KL grade in the overall population and communities. The number of subjects in each subgroup is shown under the bars. Osteoarthritis and Cartilage 2009 17, 1137-1143DOI: (10.1016/j.joca.2009.04.005) Copyright © 2009 Osteoarthritis Research Society International Terms and Conditions