Figure 3.

Timed “Up-and-Go” test. Data are represented as mean ±SD; n=122 for the CCH group and n=121 for the ADH group. Timed “Up-and-Go” was low in the ADH group after 6 months of follow-up as compared to baseline (BL) (P=0.0148, q=3.385). The Wilcoxon test (within the group) or the Mann-Whitney U test (between group) following Bonferroni adjustment was used for statistical analysis. P<0.05 and q>2.652 were considered significant. Within group P-value was with respect to BL. CCH – chemically cross-linked hyaluronan injections; ADH – avian derived hyaluronan injections.