Table 6. Multiple logistic regression analysis of determinants for current asthma. Data are expressed as odds ratios (OR) and 95% confidence intervals (95% CI).
| OR | 95% CI | P value | |
|---|---|---|---|
| Gender (reference: female) | 1.36 | 0.86-2.16 | 0.19 |
| Heavy traffic (reference: "never/rare") | 1.74 | 1.08-2.80 | 0.024 |
| Mold/dampness (reference no exposure) | 1.65 | 0.96-2.83 | 0.72 |
| Exposure to environmental tobacco smoke (ref. no exposure) | 1.40 | 0.87-2.24 | 0.17 |
| Parental history for atopy (reference no history) | 4.92 | 2.97-8.16 | <0.0001 |
| Household crowding index (reference: <1) | 0.67 | 0.42-1.06 | 0.088 |
| Atopic index* | |||
| AI=1 (reference: AI=0) | 3.29 | 1.79-6.05 | 0.0001 |
| AI=2 (reference: AI=0) | 3.66 | 1.86-7.17 | 0.0002 |
| AI=3 (reference: AI=0) | 4.45 | 2.42-8.16 | <0.0001 |
| Rhinitis (ref.: neither rhinitis nor rhinoconjunctivitis)* | 2.28 | 1.21-4.30 | 0.010 |
| Rhinoconjunctivitis (ref.: neither rhinitis nor rhinoconjunctivitis)* | 5.23 | 3.06-8.96 | <0.0001 |
*P for trend <0.0001.