3.
PICU组和对照组的PEWS分值比较
| [P50（P25，P75）] | ||
| 组别 | 例数 | PEWS分值 |
| 对照组 | 120 | 1(0, 1) |
| PICU组 | 120 | 4(2, 5) |
| Z值 | -11.25 | |
| P值 | < 0.001 | |
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