Respiratory distress syndrome according to smoking during pregnancy and antenatal steroids
| N | RDS | OR (95% CI) | aOR (95% CI) | p Value | ||
|---|---|---|---|---|---|---|
| n | % | |||||
| RDS, Respiratory distress syndrome; OR, odds ratio; aOR, adjusted for gestational age (logistic regression performed on 858 infants); CI, confidence interval. | ||||||
| Smoking | ||||||
| No | 518 | 235 | 45.4 | 1.0 | 1.0 | 0.001 |
| Yes | 340 | 120 | 35.3 | 0.66 (0.50 to 0.87) | 0.59 (0.44 to 0.79) | |
| Antenatal steroids | ||||||
| No | 253 | 136 | 53.8 | 1.0 | 1.0 | 0.001 |
| Yes | 605 | 219 | 36.2 | 0.49 (0.36 to 0.66) | 0.47 (0.35 to 0.65) | |
| Steroids and smoking | ||||||
| No smoking, no steroids | 134 | 87 | 64.9 | 1.0 | 1.0 | 0.001 |
| No smoking, steroids | 384 | 148 | 38.5 | 0.34 (0.23 to 0.51) | 0.32 (0.21 to 0.50) | |
| Smoking, no steroids | 119 | 49 | 41.2 | 0.38 (0.23 to 0.63) | 0.34 (0.20 to 0.57) | |
| Smoking and steroids | 221 | 71 | 32.1 | 0.26 (0.16 to 0.40) | 0.22 (0.13 to 0.35) | |