Fig. 2From: Development of a clinical prediction algorithm for knee osteoarthritis structural progression in a cohort study: value of adding measurement of subchondral bone densityUnadjusted predicted risk of medial progression from univariate logistic regression with a natural cubic spline for M:L BMD ratio. Uses the outcomes from the primary analysis. M:L BMD ratio medial-to-lateral tibial plateau bone mineral density ratioBack to article page