3.
既往有、无热性惊厥史的甲流并发热性惊厥患儿的临床特征对比 [M（P25，P75）]
| 临床特征 | 既往无热性惊厥史(n=158) | 既往有热性惊厥史(n=91) | Z值 | P值 |
| 抽搐次数(次) | 1(1, 1) | 1(1, 2) | -1.17 | 0.24 |
| 自发病至出现抽搐时间(d) | 0.5(0.5, 1.0) | 0.5(0.5, 1.0) | -0.69 | 0.49 |
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