Table 3 Association between household cigarettes, birth weight, and wheezing status in adolescents
Adjusted OR* | Household cigarettes (per day) | |||
|---|---|---|---|---|
(95% CI) | 0 | 1–20 | 21–40 | ≥41 |
Ever Wheezing | ||||
Birth weight (g) | ||||
<2500 | 1.08 (1.01–1.16) | 1.03 (0.97–1.10) | 1.24 (1.03–1.49) | 1.73 (1.28–2.33) |
2500–3999 | 1.00 (Reference) | 0.98 (0.97–1.00) | 1.21 (1.17–1.26) | 1.36 (1.27–1.45) |
≥4000 | 0.98 (0.93–1.03) | 0.92 (0.88–0.97) | 1.17 (1.02–1.34) | 1.17 (0.91–1.50) |
Subgroup: excluded ever physician-diagnosed asthma cases | ||||
Birth weight (g) | ||||
<2500 | 1.06 (0.97–1.17) | 1.12 (1.03–1.22) | 1.42 (1.14–1.78) | 2.11 (1.49–2.98) |
2500–3999 | 1.00 (Reference) | 1.05 (1.03–1.08) | 1.38 (1.31–1.44) | 1.60 (1.48–1.73) |
≥4000 | 0.98 (0.92–1.05) | 0.99 (0.94–1.06) | 1.29 (1.09–1.52) | 1.43 (1.07–1.90) |
Subgroup: excluded ever physician-diagnosed rhinitis cases | ||||
Birth weight (g) | ||||
<2500 | 1.05 (0.95–1.17) | 1.10 (1.00–1.20) | 1.48 (1.17–1.88) | 2.12 (1.44–3.12) |
2500–3999 | 1.00 (Reference) | 1.07 (1.04–1.09) | 1.43 (1.36–1.51) | 1.56 (1.43–1.70) |
≥4000 | 0.97 (0.91–1.05) | 1.01 (0.94–1.07) | 1.24 (1.03–1.49) | 1.24 (0.90–1.72) |
Subgroup: excluded ever physician-diagnosed asthma or rhinitis cases | ||||
Birth weight (g) | ||||
<2500 | 1.02 (0.89–1.16) | 1.15 (1.03–1.28) | 1.56 (1.18–2.06) | 2.20 (1.41–3.44) |
2500–3999 | 1.00 (Reference) | 1.10 (1.07–1.14) | 1.54 (1.45–1.63) | 1.72 (1.57–1.90) |
≥4000 | 1.00 (0.92–1.09) | 1.07 (0.99–1.15) | 1.27 (1.03–1.58) | 1.42 (0.99–2.03) |
Current Wheezing | ||||
Birth weight (g) | ||||
<2500 | 1.09 (1.00–1.20) | 1.08 (1.00–1.18) | 1.47 (1.18–1.84) | 2.20 (1.56–3.09) |
2500–3999 | 1.00 (Reference) | 1.05 (1.03–1.07) | 1.33 (1.27–1.40) | 1.66 (1.37–1.79) |
≥4000 | 0.98 (0.92–1.04) | 0.99 (0.93–1.05) | 1.47 (1.25–1.72) | 1.45 (1.09–1.93) |
Subgroup: excluded ever physician-diagnosed asthma cases | ||||
Birth weight (g) | ||||
<2500 | 1.07 (0.94–1.22) | 1.16 (1.04–1.30) | 1.94 (1.49–2.52) | 2.57 (1.69–3.89) |
2500–3999 | 1.00 (Reference) | 1.14 (1.10–1.17) | 1.52 (1.43–1.61) | 1.97 (1.80–2.16) |
≥4000 | 1.00 (0.92–1.09) | 1.08 (1.00–1.16) | 1.62 (1.33–1.97) | 2.00 (1.45–2.77) |
Subgroup: excluded ever physician-diagnosed rhinitis cases | ||||
Birth weight (g) | ||||
<2500 | 1.06 (0.92–1.22) | 1.16 (1.03–1.30) | 1.82 (1.36–2.43) | 2.91 (1.88–4.50) |
2500–3999 | 1.00 (Reference) | 1.15 (1.11–1.19) | 1.62 (1.52–1.72) | 1.99 (1.80–2.20) |
≥4000 | 1.01 (0.92–1.11) | 1.06 (0.97–1.15) | 1.51 (1.21–1.89) | 1.50 (1.02–2.23) |
Subgroup: excluded ever physician-diagnosed asthma or rhinitis cases | ||||
Birth weight (g) | ||||
<2500 | 0.98 (0.81–1.18) | 1.24 (1.07–1.43) | 2.19 (1.57–3.04) | 2.79 (1.63–4.78) |
2500–3999 | 1.00 (Reference) | 1.21 (1.16–1.26) | 1.74 (1.61–1.88) | 2.22 (1.98–2.49) |
≥4000 | 1.07 (0.95–1.20) | 1.14 (1.03–1.26) | 1.60 (1.23–2.07) | 1.70 (1.09–2.66) |
Wheezing with Exercise | ||||
Birth weight (g) | ||||
<2500 | 1.11 (1.02–1.21) | 1.33 (1.24–1.43) | 1.66 (1.38–2.00) | 2.86 (2.18–3.75) |
2500–3999 | 1.00 (Reference) | 1.13 (1.11–1.16) | 1.49 (1.43–1.55) | 1.89 (1.78–2.01) |
≥4000 | 1.06 (1.01–1.12) | 1.13 (1.08–1.19) | 1.46 (1.28–1.67) | 1.81 (1.45–2.26) |
Subgroup: excluded ever physician-diagnosed asthma cases | ||||
Birth weight (g) | ||||
<2500 | 1.17 (1.01–1.23) | 1.38 (1.28–1.49) | 1.79 (1.45–2.20) | 3.35 (2.51–4.47) |
2500–3999 | 1.00 (Reference) | 1.18 (1.16–1.21) | 1.58 (1.51–1.65) | 2.06 (1.93–2.21) |
≥4000 | 1.08 (1.02–1.15) | 1.21 (1.14–1.27) | 1.48 (1.27–1.73) | 2.01 (1.58–2.56) |
Subgroup: excluded ever physician-diagnosed rhinitis cases | ||||
Birth weight (g) | ||||
<2500 | 1.11 (0.99–1.23) | 1.32 (1.21–1.43) | 1.84 (1.48–2.30) | 2.74 (1.94–3.87) |
2500–3999 | 1.00 (Reference) | 1.18 (1.15–1.21) | 1.59 (1.52–1.67) | 2.02 (1.87–2.17) |
≥4000 | 1.07 (0.99–1.14) | 1.20 (1.13–1.27) | 1.41 (1.19–1.67) | 1.92 (1.48–2.50) |
Subgroup: excluded ever physician-diagnosed asthma or rhinitis cases | ||||
Birth weight (g) | ||||
<2500 | 1.10 (0.98–1.24) | 1.33 (1.21–1.43) | 1.90 (1.50–2.40) | 2.87 (1.99–4.13) |
2500–3999 | 1.00 (Reference) | 1.20 (1.17–1.21) | 1.60 (1.53–1.69) | 2.10 (1.94–2.27) |
≥4000 | 1.09 (1.02–1.18) | 1.23 (1.15–1.27) | 1.42 (1.18–1.70) | 1.97 (1.49–2.60) |