Table 1.
Association between having current asthma and type of allergy, 2016–2018
| All child (0–17 years) | ||||||
|---|---|---|---|---|---|---|
|
|
||||||
| Prevalence of allergy | Prevalence and aPR for current asthma | |||||
|
|
||||||
| Allergy types | Sample size n | % (95% CI) |
Sample size n | Prev, % (95% CI) |
Unadjusted PR (95% CI) |
aPR (95% CI) |
|
| ||||||
| Any allergy | ||||||
| Yes | 7930 | 26.4 (25.7, 27.2) |
1382 | 18.1 (17.0, 19.3) |
4.02
(3.62, 4.46) |
3.86
(3.48, 4.28) |
| No | 20 283 | 73.6 (72.8, 74.3) |
936 | 4.5 (4.1, 4.9) |
Ref | Ref |
| Individual allergy type | ||||||
| Respiratory allergy | ||||||
| Yes | 4542 | 14.7 (14.1, 15.3) |
1037 | 23.8 (22.3, 25.4) |
4.40
(4.00, 4.83) |
3.47
(3.14, 3.84) |
| No | 23 663 | 85.3 (84.7, 85.9) |
1279 | 5.4 (5.0, 5.8) |
Ref | Ref |
| Skin allergy | ||||||
| Yes | 3723 | 12.7 (12.2, 13.3) |
634 | 17.4 (15.8, 19.1) |
2.57
(2.30, 2.87) |
1.79
(1.59, 2.02) |
| No | 24 472 | 87.3 (86.7, 87.8) |
1684 | 6.8 (6.3, 7.2) |
Ref | Ref |
| Food allergy | ||||||
| Yes | 1870 | 6.4 (6.0, 6.7) |
362 | 19.9 (17.6, 22.5) |
2.73
(2.40, 3.11) |
1.67
(1.42, 1.96) |
| No | 26 315 | 93.6 (93.3, 94.0) |
1953 | 7.3 (6.9, 7.7) |
Ref | Ref |
| 8-level allergy group | ||||||
| All 3 allergies | 320 | 1.1 (0.9, 1.2) |
124 | 38.8 (32.2, 46.0) |
8.61
(7.07, 10.50) |
7.99
(6.48, 9.85) |
| Respiratory and skin allergy | 824 | 2.7 (2.4, 2.9) |
241 | 30.8 (26.8, 35.0) |
6.82
(5.81, 8.01) |
6.28
(5.36, 7.37) |
| Respiratory and food allergy | 386 | 1.3 (1.1, 1.5) |
114 | 28.1 (22.6, 34.3) |
6.23
(5.00, 7.77) |
5.89
(4.72, 7.36) |
| Food and skin allergy | 355 | 1.2 (1.1, 1.4) |
48 | 13.3 (9.5, 18.3) |
2.95
(2.11, 4.12) |
3.05
(2.21, 4.20) |
| Respiratory allergy only | 3012 | 9.6 (9.2, 10.1) |
558 | 19.6 (17.9, 21.4) |
4.34
(3.84, 4.91) |
4.04
(3.57, 4.58) |
| Skin allergy only | 2224 | 7.7 (7.3, 8.2) |
221 | 10.5 (9.0, 12.2) |
2.32
(1.94, 2.78) |
2.32
(1.94, 2.78) |
| Food allergy only | 809 | 2.8 (2.5, 3.0) |
76 | 11.9 (8.7, 16.0) |
2.63
(1.91, 3.61) |
2.73
(2.01, 3.69) |
| No allergy | 20 283 | 73.6 (72.8, 74.3) |
936 | 4.5 (4.1, 4.9) |
Ref | Ref |
aPR, adjusted prevalence ratio (adjusted for age, sex, and race/ethnicity); CI, confidence interval; PR, prevalence ratio; Prev, prevalence; Ref, referent.
Bold numbers are statistically significant.