Table 5.
Relationship Between Time to Discharge and Predictors
| Predictor | Univariable Analysis | |
|---|---|---|
| Hazard Ratio (95% CI) | P Value | |
| Race, white vs other | 1.00 (0.67, 1.51) | 0.990 |
| Birth weight, kg | 1.36 (1.10, 1.67) | 0.005 |
| Gestational age, wk | 1.08 (1.01, 1.15) | 0.029 |
| Genetic diagnosis present | 0.65 (0.44, 0.95) | 0.025 |
| PVA, atresia vs stenosis | 0.50 (0.32, 0.79) | 0.003 |
| PVA, absent vs stenosis | 0.26 (0.08, 0.82) | 0.021 |
| Pulmonary valve annulus z‐score | 1.30 (1.04, 1.62) | 0.023 |
| Left pulmonary artery z‐score | 0.98 (0.91, 1.07) | 0.691 |
| Right pulmonary artery z‐score | 0.96 (0.89, 1.04) | 0.346 |
| Aortopulmonary collaterals | 0.49 (0.28, 0.87) | 0.016 |
| Age at surgery, mo | 1.03 (0.97, 1.09) | 0.356 |
| Age at surgery, each 10 d | 1.01 (0.99, 1.03) | 0.356 |
| Weight at surgery, kg | 1.10 (1.00, 1.21) | 0.041 |
| Number of CPB runs, 2 to 3 to 5 vs 1 | 0.42 (0.24, 0.74) | 0.003 |
| Total CPB time (10‐min increase) | 0.86 (0.82, 0.91) | <0.001 |
| Total aortic cross‐clamp time (10‐min increase) | 0.89 (0.84, 0.95) | 0.001 |
| DHCA used | 0.56 (0.30, 1.03) | 0.063 |
| Lowest hematocrit on CPB | 1.06 (1.02, 1.10) | 0.002 |
| Feeding status at admission, NPO vs oral/nasogastric feeds | 0.43 (0.23, 0.83) | 0.012 |
| Neonatal vs nonneonatal repair | 0.54 (0.35, 0.85) | 0.008 |
CI indicates confidence interval; CPB, cardiopulmonary bypass; DHCA, deep hypothermic circulatory arrest; NPO, nothing by mouth; PVA, pulmonary valve anatomy.