2.
23~33+6周不同性别早产儿生后24 h内的MPV及PDW比较 （x±s）
| 性别 | 例数 | MPV (fl) | PDW (%) |
| 注：[MPV]血小板平均容积；[PDW]血小板分布宽度。 | |||
| 男 | 226 | 10.6±0.8 | 12.4±1.9 |
| 女 | 177 | 10.8±0.8 | 12.4±2.2 |
| t值 | 0.257 | 0.330 | |
| P值 | 0.612 | 0.855 | |
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