组别 | 例数 | 气道干燥 | 气道梗阻 | 总发生率 |
观察组 | 60 | 0 (0%) | 2 (3.33%) | 2 (3.33%) |
对照组 | 60 | 6 (10%) | 8 (13.33%) | 14 (23.33%) |
X2 | 7.26 | |||
P值 | 0.00001 |