Multivariate analysis for mortality and survival
| Variable | Multivariate predictors of mortality | ||
| OR | 95% CI | P value | |
| Birth weight | 2.7 | 2.07 to 6.53 | <0.0005 |
| Distance travelled | 1.0 | 0.99 to 1.0 | 0.296 |
| DDSC | 6.4 | 4.96 to 21.8 | <0.0005 |
DDSC, duct-dependent systemic circulation.