| Group | n | Gender | Age (year) | IQR | |
| man | female | ||||
| asthma | 118 | 84 | 34 | 4.32 | 4.03 |
| control | 121 | 73 | 48 | 4.00 | 4.00 |
| χ2 |
| 3.124 |
|
| |
| Z |
|
|
| −0.358 |
|
| P |
| 0.077 | 0.720 |
| |