组别n | 性别 (男/女) | 胎龄 (周) | 出生体重 (kg) | 1 min Apgar 评分(分) | X线分级(n) | |||||
Ⅰ级 | Ⅱ级 | Ⅲ级 | Ⅳ级 | |||||||
观察组 | 43 | 22/21 | 32.24 ± 0.85 | 1.78 ± 0.15 | 8.03 ± 0.54 | 12 | 15 | 15 | 1 | |
对照组 | 43 | 25/18 | 32.79 ± 0.94 | 1.81 ± 0.17 | 8.11 ± 0.61 | 14 | 15 | 13 | 1 | |