Table 3.

Univariate and multivariate analyses of risk factors for poor post-operative outcome after congenital heart surgery

	VSD				TOF
	Univariate		Multivariate		Univariate		Multivariate
	OR (95% CI)	P	OR (95% CI)	P	OR (95% CI)	P	OR (95% CI)	P
Post-operative VISmax > 5
Ea	0.97 (0.55–1.70)	0.908			0.87 (0.56–1.35)	0.869
Ees	0.40 (0.20–0.77)	0.007	0.58 (0.25–1.33)	0.198	0.91 (0.77–1.08)	0.273
VAC	38.0 (3.58–402)	0.003	63.9 (4.02– 553)	0.003	0.88 (0.07–11.1)	0.923
Duration of mechanical ventilation > 15 h
Ea	1.34 (0.87–2.06)	0.189			1.02 (0.69–1.51)	0.924
Ees	0.90 (0.69–1.19)	0.470			1.06 (0.92–1.22)	0.441
VAC	6.98 (1.20–40.6)	0.031	6.31 (1.05–37.8)	0.044	0.31 (0.02–4.33)	0.382
Post-operative hospital stay > 7 days
Ea	1.00 (0.61–1.65)	0.988			1.14 (0.77–1.67)	0.521
Ees	0.57 (0.35–0.94)	0.027	0.75 (0.38–1.51)	0.420	1.03 (0.90–1.19)	0.653
VAC	11.0 (1.56–77.0)	0.016	17.6 (1.64–187)	0.018	0.94 (0.08–10.6)	0.944

Data are OR (95% CI)

Bold values indicate P < 0.05

OR odds ratio, CI Confidence Interval, VSD ventricular septal defect, TOF tetralogy of Fallot, VIS_max maximum vasoactive-inotropic score, Ea arterial elastance, Ees end-systolic elastance, VAC ventriculo-arterial coupling