表 1.
两组一般资料的比较
| 组别 | 例数 | 性别 (男/女, 例) |
胎龄 (x±s, 周) |
出生体重 (x±s, g) |
| 对照组 | 63 | 29/34 | 38.9±0.9 | 3 410±370 |
| 观察组 | 61 | 27/34 | 39.0±1.1 | 3 330±410 |
| χ2/t值 | 0.024 | 0.940 | 1.440 | |
| P值 | 0.876 | 0.352 | 0.152 |
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