News Finding: Among the 557 symptomatic participants with foot x-rays, the prevalence of radiographic OA of the foot was 16.7%, or roughly one in six - underscoring that it's a common condition.
Paper Finding: The population prevalence of symptomatic radiographic foot OA in adults aged 50 years and over was 16.7% (95% CI 15.3% to 18.0%).
News Context: With 19 years of follow-up, Chingford is far and away the largest and longest longitudinal study of first MTP joint OA. Among the 557 symptomatic participants with foot x-rays, the prevalence of radiographic OA of the foot was 16.7%, or roughly one in six - underscoring that it's a common condition. The first MTP joint was the most commonly affected site, with a prevalence of 7.8%, followed by the second cuneometatarsal joint (CMJ) at 6.8%, the talonavicular joint (TNJ) at 5.2%, the navicular first cuneiform joint (NCJ) at 5.2%, and the first CMJ at 3.9%.
Paper Context: Population prevalence of symptomatic radiographic foot OA Population prevalence estimates were almost identical in the baseline responder population and the total baseline eligible mailed population, hence the latter data are presented. The population prevalence of symptomatic radiographic foot OA in adults aged 50 years and over was 16.7% (95% CI 15.3% to 18.0%). The most commonly affected joint was the 1st MTPJ (7.8%; 95% CI 6.7% to 8.9%), followed by the 2nd CMJ (6.8%; 95% CI 5.7% to 7.8%), TNJ (5.8%; 95% CI 4.8% to 6.9%), NCJ (5.2%; 95% CI 4.0% to 6.4%) and 1st CMJ (3.9%; 95% CI 2.9% to 4.9%) (table 3) .