Asthmatic women | Non-asthmatic women | Crude OR (95% CI) | Adjusted OR (95% CI) | |||
No of pregnancies | No (%) of perinatal deaths | No of pregnancies | No (%) of perinatal deaths | |||
Babies with a birth weight >2500 g and gestational age at birth ⩾37 weeks | 11283 | 27 (0.2%) | 25552 | 51 (0.2%) | 1.20 (0.75 to 1.91) | 0.97 (0.74 to 1.29) |
Babies with a birth weight ⩽2500 g or gestational age at birth <37 weeks | 1817 | 109 (6.0%) | 2490 | 166 (6.7%) | 0.89 (0.70 to 1.15) | 0.94 (0.73 to 1.21) |