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Comparison of pain
| Preoperative | 12 hours after operation | 24 hours after operation | 48 hours after operation | |
|---|---|---|---|---|
| CG (n=52) | 6.94±1.06 | 5.64±1.18 | 5.01±1.36 | 4.28±1.22 |
| NG (n=55) | 6.88±1.12 | 4.13±1.03 | 3.54±0.82 | 3.11±0.94 |
| χ2/t | 0.2843 | 7.0623 | 6.8134 | 5.5747 |
| P | 0.7768 | <0.0001 | <0.0001 | <0.0001 |
