Fig. 2
Scatterplots showing the association between change in joint space width (JSW) and change in cartilage volume (n = 153 medial, n = 152 lateral). In both compartments, cartilage volume decreased in 117 participants each of a and b, but in 29 in a and 26 in b JSW increased despite a decrease in cartilage volume. a Medial compartment: there is a significant negative correlation, with R2 = 4.4 %, p = 0.009 (unadjusted). b Lateral compartment: there is a significant negative correlation, with R2 = 4.9 %, p = 0.006 (unadjusted)