The Cohort Hip Cohort Knee (CHECK) is a population-based observational multicenter cohort study of 1002 individuals with early symptomatic osteoarthritis (OA) of knee and/or hip in the Netherlands. Th
a, b, c, d and e show the Mankin scores of articular cartilage specimens from each group compared with p<0.05. Mankin scores of articular cartilage specimens (point).
