Effect of antenatal steroids on respiratory distress syndrome (RDS) in premature twins
| Outcome measure | Optimal antenatal steroids | No antenatal steroids | Odds ratio (95% CI) | p Value | ||
| RDS | 184/310 | 59% | 79/106 | 75% | 0.49 (0.27 to 0.91) | 0.02 |
| Surfactant use | 162/333 | 49% | 67/108 | 62% | 0.58 (0.34 to 0.99) | 0.05 |
| Mortality | 35/334 | 11% | 20/110 | 18% | 0.53 (0.26 to 1.08) | 0.08 |
Results are number of twin infants affected over number of infants at risk, also expressed as a percentage. Odds ratio and p values were produced by logistic regression with standard errors adjusted for within pair correlation.