Age (years) | | | | | |
18–35 | 76 | 12 | 1.00 | | |
>35 | 252 | 26 | 0.65 | 0.31 to 1.36 | 0.315 |
Sex | | | | | |
Male | 93 | 7 | 1.00 | | |
Female | 235 | 31 | 1.75 | 0.75 to 4.12 | 0.249 |
Asthma severity scale§ | | | | | |
Mild to moderate | 246 | 22 | 1.00 | | |
Severe to very severe | 70 | 15 | 2.40 | 1.18 to 4.86 | 0.023 |
Asthma attacks | | | | | |
0–1 | 219 | 17 | 1.00 | | |
≥2 | 109 | 21 | 2.48 | 1.26 to 4.90 | 0.011 |
Doctor visits§ | | | | | |
0–1 | 135 | 9 | 1.00 | | |
≥2 | 185 | 28 | 2.27 | 1.04 to 4.97 | 0.050 |
Self-classification severity§ | | | | | |
Mild to moderate | 267 | 26 | 1.00 | | |
Severe to very severe | 55 | 12 | 2.24 | 1.07 to 4.71 | 0.045 |
Alternative health consultation | 35 | 5 | 1.32 | 0.48 to 3.61 | 0.578 |
Taking oral corticosteroids | 43 | 8 | 1.77 | 0.76 to 4.11 | 0.213 |
Atopic | 112 | 23 | 2.96 | 1.48 to 5.89 | 0.002 |
Hayfever | 256 | 34 | 2.39 | 0.82 to 6.96 | 0.138 |
Nasal polyps | 46 | 13 | 3.19 | 1.52 to 6.68 | 0.004 |
Exercise/cold air asthma | 251 | 32 | 1.64 | 0.66 to 4.06 | 0.412 |
Seasonal asthma | 203 | 27 | 1.51 | 0.72 to 3.16 | 0.293 |
Wine induced asthma | 90 | 21 | 3.27 | 1.65 to 6.47 | 0.001 |
Sulphite induced asthma | 38 | 13 | 3.97 | 1.87 to 8.41 | 0.001 |