Allergen category | Control (n=2576) | Atopic dermatitis (n=2631) | Allergic rhinitis (n=1320) | Allergic asthma (n=1160) | ||||||
n | cOR* (95% CI) | aOR* (95% CI) | n | cOR* (95% CI) | aOR* (95% CI) | n | cOR* (95% CI) | aOR* (95% CI) | ||
Dermatophagoides pteronyssinus | ||||||||||
No | 2098 | 2107 | 1.00 (ref) | 1.00 (ref) | 1038 | 1.00 (ref) | 1.00 (ref) | 852 | 1.00 (ref) | 1.00 (ref) |
Class 1 | 177 | 203 | 1.14 (0.93 to 1.41) | 1.17 (0.93 to 1.47) | 90 | 1.03 (0.79 to 1.34) | 0.89 (0.63 to 1.24) | 70 | 0.97 (0.73 to 1.30) | 1.19 (0.85 to 1.66) |
Class 2 | 228 | 243 | 1.06 (0.88 to 1.28) | 1.11 (0.91 to 1.36) | 155 | 1.37 (1.11 to 1.71) | 1.16 (0.90 to 1.51) | 153 | 1.65 (1.33 to 2.06) | 1.40 (1.07 to 1.83) |
Class 3 | 73 | 78 | 1.06 (0.77 to 1.47) | 1.19 (0.84 to 1.69) | 37 | 1.02 (0.69 to 1.53) | 0.80 (0.51 to 1.26) | 85 | 2.87 (2.08 to 3.96) | 3.68 (2.50 to 5.40) |
P trend | 0.3415 | 0.0306 | <0.0001 | |||||||
Cat and dog fur | ||||||||||
No | 2513 | 2539 | 1.00 (ref) | 1.00 (ref) | 1287 | 1.00 (ref) | 1.00 (ref) | 1089 | 1.00 (ref) | 1.00 (ref) |
Class 1 | 35 | 54 | 0.95 (0.59 to 1.53) | 0.90 (0.54 to 1.49) | 18 | 1.00 (0.57 to 1.78) | 1.08 (0.58 to 2.01) | 20 | 1.32 (0.76 to 2.30) | 1.08 (0.58 to 1.99) |
Class 2 | 14 | 20 | 1.40 (0.71 to 2.78) | 1.67 (0.78 to 3.59) | 8 | 1.12 (0.47 to 2.67) | 1.26 (0.46 to 3.44) | 16 | 2.64 (1.28 to 5.42) | 4.10 (1.67 to 9.91) |
Class 3 | 14 | 18 | 1.26 (0.63 to 2.54) | 1.29 (0.62 to 2.69) | 7 | 0.98 (0.39 to 2.43) | 1.17 (0.46 to 3.22) | 35 | 5.77 (3.09 to 10.77) | 7.13 (3.44 to 14.79) |
P trend | 0.3498 | 0.9260 | <0.0001 | |||||||
Mould mixture | ||||||||||
No | 2205 | 2252 | 1.00 (ref) | 1.00 (ref) | 1059 | 1.00 (ref) | 1.00 (ref) | 990 | 1.00 (ref) | 1.00 (ref) |
Class 1 | 234 | 245 | 1.03 (0.85 to 1.24) | 1.05 (0.86 to 1.29) | 123 | 1.09 (0.87 to 1.38) | 0.81 (0.61 to 1.08) | 106 | 1.01 (0.79 to 1.28) | 0.98 (0.74 to 1.29) |
Class 2 | 100 | 97 | 0.95 (0.71 to 1.26) | 1.07 (0.79 to 1.44) | 80 | 1.67 (1.23 to 2.26) | 1.58 (1.12 to 2.22) | 46 | 1.03 (0.72 to 1.46) | 0.67 (0.44 to 1.01) |
Class 3 | 37 | 37 | 0.98 (0.62 to 1.55) | 1.04 (0.65 to 1.67) | 58 | 3.26 (2.15 to 4.96) | 3.32 (2.14 to 5.14) | 18 | 1.09 (0.62 to 1.91) | 1.01 (0.55 to 1.86) |
P trend | 0.8736 | <0.0001 | 0.7814 |
*OR values of three allergic disease compared with controls.
aOR, adjusted OR; cOR, crude OR.