ArticleOsteoarthritis and cartilage open2025
Trends in knee osteoarthritis prevalence over a 10-year period in Japan: The ROAD study 2005-2015.
Article in Osteoarthritis and cartilage open, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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Who cites it
2 citing papers in PubMed.
- Chair stand performance and symptomatic knee osteoarthritis onset: a prospective cohort study.Rheumatology international · 2026Article
- Pain sensitization as a potentially modifiable factor in people with knee osteoarthritis: insights from behavioral graded activity.Frontiers in pain research (Lausanne, Switzerland) · 2026Article
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Authors and funding
10 authors.
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Abstract
Objective: This study aimed to clarify the trends in the prevalence of knee osteoarthritis (OA) and symptomatic knee OA among the general population using population-based cohort data from baseline and a survey 10 years later. Design: The baseline survey of the Research on Osteoarthritis/Osteoporosis Against Disability (ROAD) study was conducted from 2005 to 2007; 3040 participants (1061 men and 1979 women; mean age 70.3 years) completed all OA examinations, including a questionnaire of medical information in the present/past and radiographic examination. The fourth survey was performed from 2015 to 2016; 2893 individuals (895 men and 1998 women, mean age 68.9 years) completed assessments identical to those at the baseline survey. Knee OA was defined using the Kellgren-Lawrence grading system. Results: The prevalence of knee OA was 54.6 % (men, 42.0 %; women, 61.5 %) at the baseline survey and 39.3 % (men, 26.9 %; women, 44.9 %) at the fourth survey, with a significant decrease (p < 0.0001). The prevalence of symptomatic knee OA was 24.3 % (men, 16.9 %; women, 28.3 %) at the baseline survey and 20.6 % (men, 14.2 %; women, 23.5 %) at the fourth survey, showing a similar decrease (p < 0.0001). Thus, the prevalence of knee OA and symptomatic knee OA was lower at the fourth survey than at the baseline survey (p < 0.01). Conclusions: In the population-based survey with a 10-year interval, the prevalence of knee OA and symptomatic knee OA decreased significantly. This preferable change in OA may suggest rejuvenation in the current population and could contribute to a decrease in the occurrence of disabilities in the future.
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