2.
毛细支气管炎两亚组患儿病情资料比较 （例）
| 组别 | n | 阵发性咳嗽(连声/单声) | 发热 (是/否) |
病程 (> 7 d/ < 7 d) |
| 非特应性毛细支气管炎组 | 26 | 14/12 | 7/19 | 17/9 |
| 特应性毛细支气管炎组 | 28 | 14/14 | 9/19 | 19/9 |
| χ2值 | 0.080 | 0.176 | 0.037 | |
| P值 | > 0.05 | > 0.05 | > 0.05 |
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