Table 2. Comparison of VAS score of NSAID from baseline to week 12.
VAS: visual analog scale, NSAID: nonsteroidal anti-inflammatory drug, SD: standard deviation
| VAS score | Mean ± SD | Paired t-test value | p-value |
| At week 0 | 8 ± 0.5 | 0 | <0.001 |
| At week 3 | 6.8 ± 0.7 | 6.32 | <0.001 |
| At week 6 | 6 ± 1 | 10.53 | <0.001 |
| At week 9 | 5.4 ± 1.3 | 13.68 | <0.001 |
| At week 12 | 4.8 ± 1.6 | 16.84 | <0.001 |