| Non-smoker, non ETS exposed | Non-smoker ETS exposed | Active smoker |
---|---|---|---|
Low birth weight | N = 8091 | N = 2256 | N = 6395 |
Birth weight < 2.5 Kg % †| 4.4 | 6.0 | 8.3 |
Crude Odds Ratio compared to Non-Smoker, Non ETS exposed (95% CI) | 1 | 1.39 (1.10, 1.77) p = 0.007 | 1.97 (1.68, 2.32) p < 0.001 |
Adjusted Odds Ratio * (95% CI) | 1 | 1.23 (0.96, 1.58) p = 0.10 | 1.92 (1.60,2.29) p < 0.001 |
Prematurity | N = 8032 | N = 2230 | N = 6339 |
Gestation < 37 weeks % †| 6.1 | 7.5 | 8.1 |
Crude Odds Ratio compared to Non-Smoker, Non ETS exposed (95% CI) | 1 | 1.26 (1.01,1.57) p = 0.04 | 1.36 (1.17, 1.58) p < 0.001 |
Adjusted Odds Ratio * (95% CI) | 1 | 1.21 (0.96, 1.51) p = 0.11 | 1.25 (1.05, 1.48) p = 0.013 |