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Comparison of the total effective rate of patients in the two groups at 2 months after operation (n, %)
| Groups | Cure | Effective | Improvement | Ineffective | Total effective rate (%) |
|---|---|---|---|---|---|
| Control group (n=30) | 12 (40.00) | 9 (30.00) | 4 (13.33) | 5 (16.67) | 83.33 |
| Observation group (n=30) | 15 (50.00) | 7 (23.33) | 7 (23.33) | 1 (3.34) | 96.66 |
| χ2 | 4.043 | ||||
| P | 0.044 | ||||
