组别 | Ⅰ度裂伤 | Ⅱ度裂伤 | Ⅲ度裂伤 | 侧切 | 会阴完好 |
实验组 | 21 (40.38) | 11 (21.15) | 0 (0.00) | 9 (17.31) | 11 (21.15) |
对照组 | 4 (6.78) | 2 (3.39) | 0 (0.00) | 23 (38.98) | 30 (50.85) |