Fig. 1
Medial cartilage thickness, physical function, pain, and serum extracellular vesicle variables cluster in highly correlated groups. Pairwise Pearson correlation coefficients between variables, computed across all subjects and color-coded as indicated. Dark blue (respectively red) on the correlogram indicates strong positive (respectively negative) correlations in variables’ Z-scores. Asterisks indicate statistically significant correlations (p < 0.05)