Table 2.
Socioeconomic factors associated with allergic diseases
| Disease status/Socioeconomic factors | Total exposure N = 5544 (100%) | Probable asthmaa N = 1082 (19.5%) | Allergic rhinitis N = 1360 (24.5%) | Atopic eczema N = 641 (11.6%) | Any allergic disease N = 2196 (39.6%) |
|---|---|---|---|---|---|
| Public school vs | 1781 (32.1%) | <10−4; 1.67 | 0.10; 1.11 | 0.29; 1.10 | <10−4; 1.38 |
| Private school | 3763 (67.9%) | [1.45–1.92] | [0.98–1.27] | [0.93–1.30] | [1.23–1.55] |
| Age category | |||||
| [5–8] years | 1585 (28.6%) | 1.00; <10−4 | 1.00; <10−4 | 1.00; 0.98 | 1.00; <10−4 |
| [8–10] years | 1202 (21.7%) | 1.03 [0.84–1.26] | 1.15 [0.96–1.39] | 1.03 [0.82–1.31] | 1.07 [0.91–1.25] |
| [10–13] years | 1796 (32.4%) | 1.48 [1.25–1.78] | 1.37 [1.16–1.61] | 1.00 [0.81–1.24] | 1.36 [1.18–1.56] |
| >13 years | 960 (17.3%) | 2.06 [1.70–2.51] | 2.22 [1.85–2.66] | 0.98 [0.76–1.26] | 2.00 [1.70–2.36] |
| Male sex | 2890 (52.2%) | <10−4; 1.39 [1.20–1.59] | 0.37; 1.05 [0.93–1.19] | 0.44; 1.06 [0.90–1.27] | 0.001; 1.19 [1.07; 1.33] |
| Father education | |||||
| Low | 1259 (23.4%) | 1.43 [1.19–1.72] | 1.15 [0.97–1.37] | 1.15 [0.91–1.45] | 1.28 [1.10 ; 1.49] |
| Intermediate | 2518 (46.7%) | 1.09 [0.92–1.28] | 1.04 [0.91–1.22] | 1.02 [0.83–1.25] | 1.08 [0.95; 1.22] |
| High | 1613 (29.9%) | 1.00; <10−4 | 1.00; 0.17 | 1.00; 0.44 | 1.00; 0.004 |
| Mother education | |||||
| Low | 963 (17.8%) | 1.39 [1.15–1.67] | 1.14 [0.94–1.37] | 1.09 [0.85–1.39] | 1.21 [1.04; 1.42] |
| Intermediate | 2659 (49.3%) | 1.02 [0.87–1.20] | 1.03 [0.91–1.19] | 0.88 [0.73–1.08] | 1.02 [0.96; 1.06] |
| High | 1775 (32.9%) | 1.00; <10−4 | 1.00; 0.39 | 1.00; 0.17 | 1.00; 0.038 |
| Child sleeps in his own bed | 4824 (87.9%) | 0.02; 0.79 [0.65–0.96] | 0.03; 0.82 [0.69–0.99] | 0.01; 0.73 [0.58–0.92] | 0.01; 0.81 [0.69–0.95] |
| Infancy daycare | 130 (23.8%) | 0.32; 0.92 [0.79–1.08] | 0.003; 1.23 [1.08–1.43] | 0.29; 1.11 [0.92–1.33] | 0.02; 1.22 [1.07; 1.38] |
| Electrical vacuum | 4917 (89.4%) | 0.39; 0.91 [0.74–1.13] | 0.10; 1.19 [0.97–1.46] | 0.60; 1.08 [0.82–1.42] | 0.97; 1.00 [0.84; 1.19] |
| Persons per chamber | |||||
| >1.6 | 1826 (32.9%) | 0.99 [0.83–1.19] | 1.12 [0.95–1.33] | 0.90 [0.72–1.13] | 1.08 [0.93–1.25] |
| 1–1.6 | 2493 (45.0%) | 1.03 [0.87–1.22] | 1.12 [0.96–1.32] | 1.11 [0.90–1.38] | 1.12 [0.98–1.30] |
| <1 | 1225 (22.1%) | 0.92; 1.00 | 0.17; 1.00 | 0.37; 1.00 | 0.30; 1.00 |
Note:
a
Probable asthma includes asthma-like symptoms with or without physician diagnosis.