Abstract
Methods: This cross-sectional population based study was conducted on residents over 40 years of age in Ansung, Gyeonggi Province. Subjects completed an interview based on a standardized questionnaire and clinical evaluation including knee and hand radiographs. We defined a subject with the Kellgren and Lawrence grade ≥2 as having radiographic OA (ROA). Symptomatic OA (SOA) was defined by the presence of both radiographic OA and self-reported pain. Results: We obtained both symptom information and radiographs from 3,876 subjects. The prevalence of radiographic and symptomatic knee OA was 14.9% and 5.4%, respectively. The prevalence of radiographic and symptomatic hand OA was 13.4% and 8.0%, respectively. The prevalence of knee and hand OA (ROA & SOA) was higher among women than men. Multiple logistic regression analysis showed a significant association of age and female sex with both knee and hand OA (ROA & SOA), of body mass index (BMI) with knee OA (ROA & SOA) and hand ROA.
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