Table 2 Comparison of efficacy within the two groups based on changes from the baseline
| Â | WOMAC | Lequesne | VAS | ||||||
|---|---|---|---|---|---|---|---|---|---|
pain | stiffness | Function | Total | pain | walk | ADL | Total | VAS | |
HMW-HA [Mean] | |||||||||
 Before | 9 | 3 | 30 | 42 | 5 | 2 | 5.5 | 12.5 | 8 |
 2 months | 5 | 2 | 19 | 25 | 4 | 1 | 4.5 | 10 | 2 |
 6 months | 5 | 1 | 17 | 22 | 3 | 1 | 4 | 8.5 | 3 |
 *P value | < 0.001 | < 0.001 | < 0.001 | < 0.001 | < 0.001 | < 0.001 | < 0.001 | < 0.001 | < 0.001 |
LMW-HA [Mean] | |||||||||
 Before | 9 | 3 | 30 | 44 | 5.5 | 1 | 5.5 | 12.5 | 8 |
 2 months | 5 | 1 | 18 | 25 | 3 | 1 | 4 | 9 | 2 |
 6 months | 5 | 1 | 17 | 24.5 | 3.5 | 1 | 4.5 | 9.75 | 4 |
 *P value | < 0.001 | < 0.001 | < 0.001 | < 0.001 | < 0.001 | < 0.001 | < 0.001 | < 0.001# | < 0.001 |