Table 2: Change at 6 Months in Total WOMAC Index and in WOMAC Subscale

Placebo n= 20 Mean (SD) Hyaluronan n=22 Mean (SD) p value
Total WOMAC index -5.6 (21.2) -23.9 (17.9) 0.044
Pain WOMAC subscale -11.2 (21.0) -21.7 (25.9) 0.307
Stiffness WOMAC subscale -2.2 (40.3) -22.4 (22.5) 0.081
Functional capacity WOMAC subscale -4.4 (18.8) -24.7 (18) 0.019

p value was calculated using Mann-Whitney Wilcoxon test.