4.
两组间血清25(OH)D水平及维生素D缺乏率的比较
| 组别 | 例数 | 25(OH)D (x±s, nmol/L) |
维生素D缺乏 [n(%)] |
| 对照组 | 219 | 47±20 | 162(74.0) |
| BPD组 | 41 | 37±17 | 37(90.2) |
| t(χ2)值 | -3.3 | (5.092) | |
| P值 | 0.001 | 0.024 |
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