组别 | 例数 | 红斑 | 灼热 | 瘙痒 | 总计[n (%)] |
观察组 | 40 | 1 | 0 | 0 | 1 (2.5) |
对照组 | 39 | 0 | 0 | 1 | 1 (2.6) |
χ²值 |
|
|
|
| 2.001 |
P值 |
|
|
|
| 0.368 |