TABLE 3.

Multivariable analysis of risk factors associated with 72-hour extubation failure after neonatal congenital heart surgery

Characteristics	OR	95% CI	P value
Male gender	1.44	(0.93–2.25)	.10
Airway anomaly	3.06	(1.40–6.72)	.01
Society of Thoracic Surgeons–European Association for Cardio-Thoracic Surgery Congenital Heart Surgery mortality category
Categories 1–3	ref
Categories 4 or 5	1.31	(0.83–2.09)	.25
Pre-extubation extracorporeal life support	1.36	(0.60–3.08)	.47
Use of inhaled nitric oxide	1.52	(0.92–2.51)	.10
Total mechanical ventilation (stratified into quartiles)
≤25 h	ref
26–70 h	1.05	(0.55–2.00)	.88
70–144 h	0.93	(0.47–1.83)	.84
>144 h	1.15	(0.57–2.31)	.69

Generalized estimating equations used to account for effects of clustering of patients at the same center. OR, Odds ratio; CI, confidence interval.