Correlation between KL scores, Pain Intensity, and CoP Range in the medial-lateral direction during quiet standing (n = 42).

Spearman (R) correlation coefficient between pain intensity immediately before each balance measurement, Kellgren and Lawrence (KL) score, Centre of Pressure (CoP) Range in medial-lateral (ML) during four different sensory conditions: (i) Eyes open and firm surface (ii) eyes closed and firm surface, (iii) eyes open and soft surface, and (iv) eyes closed and soft surface. Significant correlations are indicated by p-values smaller than 0.05 (*).