2.1. Western Ontario and McMaster Universities Osteoarthritis Index Pain Subscore
pain
OSTEOARTHRITIS, GROUP B
Data analysis showed a significant increase in both groups in the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) pain (WOMACp) subscore. At baseline, the mean score of WOMACp was 6.8 in Group A and 7.3 in Group B. After reassessment at 1-month follow-up, it was 3.7 ± 3.1 in Group A and 2.8 ± 3.1 in Group B. A similar trend was found in the following evaluations: at 3 months follow-up the score for Group A was 3.7 ± 2.7, while in Group B it was 2.9 ± 3.1; at 6 months follow-up it was 4.4 ± 3.1 in Group A and 3.9 ± 3.8 in Group B (see Both treatment groups showed a comparable improvement in the WOMAC pain subscale. The interaction effects of group and time were statistically significant on the outcome (