Table 3:

Multivariable model of preoperative factors associated with in-hospital mortality, length of stay, and cost

	Mortality		Length of stay		Cost
	Odds ratio (95% CI)	p	Ratio (95% CI)	p	Ratio (95% CI)	p
Age at arterial switch operation (per day)	1.02 (0.98 to 1.07)	0.31	1.03 (1.03 to 1.04)	<0.001	1.02 (1.02 to 1.03)	<0.001
Genetic condition	6.00 (2.30 to 15.64)	0.001	1.99 (1.68 to 2.36)	<0.001	1.95 (1.65 to 2.31)	<0.001
Prematurity	2.84 (1.44to 5.58)	0.002	1.32 (1.21 to 1.44)	<0.001	1.26 (1.16 to 1.38)	<0.001
Preoperative prostaglandin infusion	0.74 (0.43 to 1.26)	0.26	1.01 (0.95 to 1.06)	0.77	1.00 (0.95 to 1.06)	0.92
Preoperative inotrope infusion	4.79 (1.12 to 24.9)	0.04	1.05 (0.83 to 1.33)	0.67	1.38 (1.09 to 1.75)	0.007
Preoperative mechanical ventilation	1.14 (0.65 to 2.00)	0.64	1.12 (1.06 to 1.18)	<0.001	1.17 (1.11 to 1.23)	<0.001
Balloon atrial septostomy	0.32 (0.17–0.59)	<0.001	0.84 (0.80 to 0.88)	<0.001	0.85 (0.81 to 0.88)	<0.001

CI confidence interval