4.
PICU两个亚组PEWS分值的比较
| [P50（P25，P75）] | ||
| 组别 | 例数 | PEWS分值 |
| 神经/其他系统疾病 | 55 | 3(0, 5) |
| 呼吸/循环系统疾病 | 65 | 4(3, 5.5) |
| Z值 | -2.798 | |
| P值 | 0.005 | |
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