Table 4.

Factors associated with overall mortality (n=14)

Variable	Univariable analysis			Multivariable analysis
	HR (95% CI)	p-value		HR (95% CI)	p-value
Age at operation (mo)	0.76 (0.64–0.91)	0.003		0.78 (0.65–0.93)	0.006
Weight at operation (kg)	0.63 (0.46–0.85)	0.002
Prematurity	2.52 (0.84–7.52)	0.097
Previous palliative cardiac surgery	0.34 (0.11–0.99)	0.048		0.95 (0.22–4.13)	0.953
Chromosomal abnormality	0.75 (0.16–3.39)	0.718
Conduit diameter, z-score	1.53 (0.76–3.08)	0.232
Concomitant pulmonary arterioplasty	0.36 (0.12–1.05)	0.063
Type of conduit	1.01 (0.60–1.68)	0.968
Primary cardiac diagnosis	1.36 (0.98–1.88)	0.063
Cardiopulmonary bypass time	1.01 (1.01–1.01)	0.001		1.01 (1.00–1.01)	0.001
Aortic cross-clamp time	1.01 (1.00–1.03)	0.001

HR, hazard ratio; CI, confidence interval.