Table 2. Final multivariate analysis model of factors associated with wheezing in the past 12 months.
| Variable | Coefficient | Wald c2 | OR (95% CI) | p |
|---|---|---|---|---|
| Intercept | −1.664 | 70.978 | - | < 0.001 |
| Birth weight < 2,500 g | 1.055 | 14.539 | 2.9 (1.7-4.9) | < 0.001 |
| Day care center/nursery attendance | 0.738 | 9.194 | 2.1 (1.3-3.4) | 0.002 |
| Maternal history of asthma | 0.949 | 10.456 | 2.6 (1.5-4.6) | 0.001 |
| Contact with animals in the first year of life (dogs, cats, other furry animals, or birds) | 1.152 | 4.871 | 3.2 (1.1-8.8) | 0.027 |
| Current contact with animals outside the home (dogs, cats, or farm animals) | 1.145 | 7.886 | 3.1 (1.4-7.0) | 0.005 |
| Number of cigarettes smoked in the home by parents or other household members (> 20 cigarettes/day) | 1.288 | 5.434 | 3.6 (1.2-10.7) | 0.020 |