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Comparison of VAS scores between 2 groups of patients prior to and following operation.
| Parameters | Group A (≥4 weeks) | Group B (<4 weeks) | P-value |
|---|---|---|---|
| Cases (N) | 116 | 118 | |
| 1 day prior to operation | 6.8±3.1 | 7.1±3.0 | 0.439 |
| 6 weeks after operation | 3.4±1.9 | 3.6±1.8 | 0.212 |
| 6 months after operation | 2.7±0.9 | 2.4±0.8 | 0.0702 |
| 24 months after operationa | 1.1±0.7 | 1.2±0.8 | 0.306 |
P<0.001 vs. before operation. VAS, visual analogue scale.
