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) | ||
Common ragweed and mugwort | ||||||||||
No | 2325 | 2378 | 1.00 (ref) | 1.00 (ref) | 1130 | 1.00 (ref) | 1.00 (ref) | 1020 | 1.00 (ref) | 1.00 (ref) |
Class 1 | 113 | 114 | 0.99 (0.76 to 1.29) | 0.97 (0.72 to 1.30) | 58 | 1.06 (0.76 to 1.46) | 0.95 (0.64 to 1.40) | 38 | 0.77 (0.53 to 1.12) | 0.75 (0.49 to 1.15) |
Class 2 | 72 | 73 | 0.99 (0.71 to 1.38) | 1.09 (0.74 to 1.60) | 52 | 1.49 (1.03 to 2.14) | 1.92 (1.23 to 2.99) | 41 | 1.30 (0.88 to 1.92) | 1.95 (1.17 to 3.27) |
Class 3 | 66 | 66 | 0.98 (0.69 to 1.38) | 0.75 (0.50 to 1.13) | 80 | 2.49 (1.79 to 3.48) | 1.87 (1.24 to 2.81) | 61 | 2.11 (1.48 to 3.01) | 2.26 (1.43 to 3.56) |
P trend | 0.8767 | <0.0001 | 0.0002 | |||||||
German cockroach | ||||||||||
No | 2391 | 2438 | 1.00 (ref) | 1.00 (ref) | 1225 | 1.00 (ref) | 1.00 (ref) | 1073 | 1.00 (ref) | 1.00 (ref) |
Class 1 | 113 | 114 | 0.99 (0.76 to 1.29) | 0.79 (0.58 to 1.09) | 58 | 1.00 (0.73 to 1.39) | 0.75 (0.47 to 1.19) | 52 | 1.03 (0.73 to 1.44) | 1.35 (0.89 to 2.06) |
Class 2 | 61 | 59 | 0.95 (0.66 to 1.36) | 0.69 (0.44 to 1.09) | 31 | 0.99 (0.64 to 1.54) | 0.59 (0.32 to 1.10) | 27 | 0.99 (0.62 to 1.56) | 0.70 (0.37 to 1.31) |
Class 3 | 11 | 20 | 1.78 (0.85 to 3.73) | 1.32 (0.58 to 3.04) | 6 | 1.07 (0.39 to 2.89) | 0.57 (0.17 to 1.84) | 8 | 1.62 (0.65 to 4.04) | 1.84 (0.67 to 5.08) |
P trend | 0.5522 | 0.9707 | 0.5848 | |||||||
Tree pollen mixture | ||||||||||
No | 2249 | 2297 | 1.00 (ref) | 1.00 (ref) | 1078 | 1.00 (ref) | 1.00 (ref) | 1003 | 1.00 (ref) | 1.00 (ref) |
Class 1 | 169 | 174 | 1.01 (0.81 to 1.26) | 0.99 (0.77 to 1.27) | 76 | 0.94 (0.71 to 1.24) | 0.86 (0.61 to 1.22) | 74 | 0.98 (0.74 to 1.30) | 0.96 (0.67 to 1.38) |
Class 2 | 129 | 132 | 1.00 (0.78 to 1.29) | 1.09 (0.81 to 1.46) | 102 | 1.65 (1.26 to 2.16) | 1.50 (1.06 to 2.14) | 73 | 1.27 (0.94 to 1.71) | 0.78 (0.51 to 1.18) |
Class 3 | 29 | 28 | 0.95 (0.56 to 1.59) | 0.82 (0.45 to 1.51) | 64 | 4.60 (2.95 to 7.18) | 3.79 (2.28 to 6.29) | 10 | 0.77 (0.38 to 1.59) | 0.51 (0.21 to 1.23) |
P trend | 0.9430 | <0.0001 | 0.4338 | |||||||
Hop | ||||||||||
No | 2412 | 2461 | 1.00 (ref) | 1.00 (ref) | 1150 | 1.00 (ref) | 1.00 (ref) | 1076 | 1.00 (ref) | 1.00 (ref) |
Class 1 | 90 | 89 | 0.97 (0.72 to 1.31) | 0.89 (0.63 to 1.27) | 46 | 1.07 (0.75 to 1.54) | 1.28 (0.81 to 2.03) | 50 | 1.25 (0.88 to 1.77) | 1.15 (0.74 to 1.79) |
Class 2 | 45 | 52 | 1.13 (0.76 to 1.69) | 1.21 (0.77 to 1.91) | 50 | 2.33 (1.55 to 3.51) | 3.71 (2.24 to 6.13) | 20 | 1.00 (0.59 to 1.70) | 0.70 (0.36 to 1.35) |
Class 3 | 29 | 29 | 0.98 (0.58 to 1.65) | 0.85 (0.45 to 1.61) | 74 | 5.35 (3.46 to 8.27) | 6.89 (4.05 to 11.73) | 14 | 1.08 (0.57 to 2.06) | 0.68 (0.31 to 1.53) |
P trend | 0.8221 | <0.0001 | 0.5204 |
*OR values of three allergic disease compared with controls.
aOR, adjusted OR; cOR, crude OR.