Table 3.

Univariate and multivariable analysis of decannulation

	Variable	Hazard ratio	P value	95% CI
Univariate	Year	1.22	<0.01	1.08–1.37
	Cardiothoracic unit	1.76	<0.01	1.26–2.44
	Neurosurgery unit	0.62	<0.01	0.44–0.85
	Cardiac surgery admission	1.71	<0.01	1.18–2.46
	CNS admission	0.58	<0.01	0.40–0.84
	Coma as indication	0.48	<0.001	0.33–0.70
	Failed extubation	2.0	<0.01	1.29–3.1
Multivariate	Year	1.25	0.02	1.03–1.49
	Coma as indication	0.5	<0.01	0.34–0.75
	Failed extubation	2.05	<0.01	1.33–3.16
	Cardiothoracic unit	1.52	0.01	1.11–2.1

CI, confidence interval; CNS, central nervous system.