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Comparison of postoperative excellent and good rates between the two groups (n/%).
| Group | N | Excellent | Good | But | Difference | Excellent and good rate |
|---|---|---|---|---|---|---|
| C group | 25 | 7 (28.00) | 6 (24.00) | 8 (32.00) | 4 (16.00) | 84.00 |
| R group | 25 | 18 (72.00) | 5 (20.00) | 2 (8.00) | 0 | 100.00 |
| χ 2 | 4.347 | |||||
| P | 0.037 |
