3.
不同性别晚期早产儿生后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 | 386 | 10.5±0.7 | 12.0±1.6 |
| 女 | 281 | 10.6±0.7 | 12.2±1.5 |
| t值 | 0.461 | 0.897 | |
| P值 | 0.497 | 0.346 | |
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