Unadjusted and adjusted associations of maternal smoking (per category effects) with asthma and lung function in children
| Outcome | N | Unadjusted estimate | (95% CI) | p Value | Adjusted estimate* | (95% CI) | p Value |
| Odds ratios | |||||||
| Asthma | 8002 | 1.10 | (1.04 to 1.16) | 0.002 | 1.03 | (0.96 to 1.11) | 0.4 |
| AM differences | |||||||
| FEV1 SDS | 6504 | −0.02 | (−0.04 to 0.00) | 0.07 | −0.00 | (−0.03 to 0.02) | 0.9 |
| FEF25–75 SDS | 6606 | −0.05 | (−0.07 to −0.03) | 5.2×10–6 | −0.05 | (−0.08 to −0.02) | 0.0003 |
↵* Adjusted for propensity score (see methods for details).
AM, arithmetic mean; FEF25–75, maximal mid expiratory flow; FEV1, forced expiratory volume in 1 s.