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Comparison of VAS score between the two groups (x ± sd, point)
| Groups | N | Before treatment | After treatment | t | P |
|---|---|---|---|---|---|
| Control group | 43 | 8.14±1.76 | 4.15±1.21 | 12.253 | <0.001 |
| Observation group | 43 | 8.02±1.65 | 2.89±0.53 | 19.412 | <0.001 |
| t | 0.326 | 6.255 | |||
| P | 0.745 | <0.001 |
