Physician-diagnosed asthma | Ever wheeze | Current wheeze | |||||
OR | 95% CI | OR | 95% CI | OR | 95% CI | ||
Model A | In utero exposure | 1.22 | 0.94 to 1.59 | 1.05 | 0.85 to 1.30 | 1.16 | 0.93 to 1.45 |
Daily smoking | 1.33 | 0.91 to 1.94 | 1.87 | 1.39 to 2.52 | 1.97 | 1.46 to 2.67 | |
ETS at age 7–8 years | 1.30 | 1.02 to 1.67 | 1.26 | 1.03 to 1.54 | 1.19 | 0.97 to 1.47 | |
Daily smoking | 1.32 | 0.90 to 1.93 | 1.88 | 1.40 to 2.53 | 1.96 | 1.45 to 2.66 | |
ETS at age 16–17 years | 1.25 | 0.96 to 1.63 | 1.21 | 0.98 to 1.50 | 1.15 | 0.92 to 1.45 | |
Daily smoking | 1.36 | 0.93 to 1.98 | 1.89 | 1.41 to 2.55 | 1.99 | 1.47 to 2.70 | |
Continuous ETS | 1.47 | 1.09 to 1.99 | 1.34 | 1.04 to 1.71 | 1.18 | 0.91 to 1.54 | |
Daily smoking | 1.35 | 0.93 to 1.96 | 1.87 | 1.39 to 2.50 | 1.99 | 1.47 to 2.68 | |
Model B | In utero exposure | 1.22 | 0.82 to 1.82 | 1.05 | 0.85 to 1.30 | 1.16 | 0.93 to 1.45 |
1–10 cigarettes/day | 1.22 | 0.82 to 1.82 | 1.75 | 1.29 to 2.38 | 1.76 | 1.29 to 2.42 | |
≥11 cigarettes/day | 1.38 | 0.69 to 2.72 | 1.94 | 1.12 to 3.37 | 2.44 | 1.41 to 4.22 | |
ETS at age 7–8 years | 1.31 | 1.02 to 1.68 | 1.26 | 1.03 to 1.54 | 1.19 | 0.97 to 1.47 | |
1–10 cigarettes/day | 1.18 | 0.78 to 1.77 | 1.68 | 1.23 to 2.29 | 1.74 | 1.26 to 2.39 | |
≥11 cigarettes/day | 1.32 | 0.67 to 2.62 | 1.98 | 1.15 to 3.41 | 2.34 | 1.35 to 4.05 | |
ETS at age 16–17 years | 1.26 | 0.96 to 1.64 | 1.21 | 0.98 to 1.51 | 1.15 | 0.92 to 1.44 | |
1–10 cigarettes/day | 1.22 | 0.81 to 1.82 | 1.70 | 1.24 to 2.31 | 1.77 | 1.29 to 2.44 | |
≥11 cigarettes/day | 1.33 | 0.67 to 2.63 | 1.96 | 1.14 to 3.86 | 2.35 | 1.35 to 4.07 | |
Continuous ETS | 1.48 | 1.10 to 2.00 | 1.34 | 1.04 to 1.72 | 1.19 | 0.91 to 1.55 | |
1–10 cigarettes/day | 1.96 | 0.80 to 1.78 | 1.72 | 1.27 to 2.34 | 1.74 | 1.27 to 2.38 | |
≥11 cigarettes/day | 1.47 | 0.76 to 2.82 | 2.03 | 1.19 to 3.46 | 2.42 | 1.42 to 4.15 |
ORs were calculated by multiple logistic regression analyses, adjusting for sex, family history of asthma, current place of residence, house dampness and birth weight <2500 g.
↵* The variables regarding ETS from the mother were included one at a time.