Table 4.
Multivariate analysis of allergic diseasesa
| Factors in the model | Probable asthmab N = 1082 (19.5%) | Allergic rhinitis N = 1360 (24.5%) | Atopic eczema N = 640 (11.5%) | Any disease N = 2196 (39.6%) |
|---|---|---|---|---|
| Age category | <10−4 | <10−4 | Not retained in the model | <10−4 |
| ≤ 8years | <10−4; 0.48 [0.40–0.59] | <10−4; 0.41 [0.33–0.51] | <10−4; 0.58 [0.46–0.74] | |
| [8–10] years | <10−4; 0.49 [0.40–0.60] | <10−4; 0.45 [0.37–0.56] | <10−4; 0.51 [0.40–0.66] | |
| [10–13] years | <10−4; 0.63 [0.52–0.76] | <10−4; 0.58 [0.47–0.70] | 0.005; 0.73 [0.59–0.91] | |
| >13 years | 1.00 | 1.00 | 1.00 | |
| Male sex | 0.002; 1.22 [1.05–1.40] | Not retained in the model | Not retained in the model | <10−4; 1.34 [1.15–1.57] |
| Pertussis | <10−4; 2.32 [1.66–3.25] | <10−4; 1.91 [1.38–2.63] | 0.01; 1.65 [1.12–2.44] | <10−4; 2.85 [2.06–3.96] |
| Animal possession | 0.005; 1.26 [1.07–1.47] | Not retained in the model | Not retained in the model | 0.005; 1.31 [1.08–1.57] |
| Mother lung disease | <10−4; 1.98 [1.55–2.53] | <10−4; 1.72 [1.34–2.20] | <10−4; 2.11 [1.58–2.81] | <10−4; 1.64 [1.25–2.13] |
| Father lung disease | <10−4; 2.04 [1.63–2.57] | <10−4; 1.89 [1.50–2.39] | 0.02; 1.43 [1.06–1.93] | <10−4; 2.05 [1.60–2.62] |
| Smoking father | 0.003; 1.21 [1.07–1.37] | 0.004; 1.23 [1.07–1.41] | Not retained in the model | Not retained in the model |
| Smoking mother | Not retained in the model | Not retained in the model | Not retained in the model | 0.002; 1.29 [1.110–1.52] |
| Infant gastroesophageal reflux | <10−4; 2.28 [1.88–2.78] | <10−4; 2.11 [1.73–2.57] | <10−4; 1.72 [1.35–2.20] | <10−4; 1.71 [1.38–2.13] |
| Cotton mattress | 0.04; 0.86 [0.74–0.99] | Not retained in the model | 0.003; 0.70 [0.56–0.88] | Not retained in the model |
| Spongy pillow | 0.003; 1.33 [1.10–1.61] | 0.008; 1.32 [1.07–1.61] | 0.003; 1.46 [1.14–1.88] | Not retained in the model |
| Humidity on bedroom walls | <10−4; 1.51 [1.29–1.77] | <10−4; 1.40 [1.18–1.66] | 0.05; 1.25 [1.00–1.56] | <10−4; 1.46 [1.21–1.76] |
| Moquette in bedroom | 0.02; 1.18 [1.03–1.34] | Not retained in the model | Not retained in the model | 0.09; 1.15 [0.98–1.35] |
| Amygdalectomy | 0.03; 1.35 [1.03–1.76] | 0.06; 1.30 [0.98–1.71] | Not retained in the model | 0.06; 1.32 [0.98–1.77] |
| Recurrent otitis | <10−4; 2.23 [1.92–2.58] | <10−4; 1.82 [1.56–2.14] | <10−4; 2.04 [1.68–2.48] | <10−4; 2.27 [1.92–2.68] |
| Infancy daycare | 0.01; 1.22 [1.05–1.40] | 0.005; 1.25 [1.07–1.47] | Not retained in the model | Not retained in the model |
| Public school | Not retained in the model | Not retained in the model | Not retained in the model | 0.003; 1.28 [1.09–1.52] |
Notes:
a
Other factors not retained in the final logistic regression model include: father and mother education, child sleeps in his own bed, electrical vacuum possession, number of persons per chamber, heart problem, measles, breastfeeding, feather pillow, cotton pillow, wool mattress, artificial mattress, butane heating, diesel heating, wood heating, coal heating;
b
Probable asthma includes asthma-like symptoms with or without physician diagnosis.