Table 2.
Difference in the mean VAS scores among the study participants
| VAS | Mean | SD | P |
|---|---|---|---|
| Base line | 7.5 | 1.1 | <0.001 |
| 3 months | 4.0 | 1.4 | |
| 9 months | 3.2 | 1.3 | |
| 12 months | 2.5 | 1.0 |
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