Table 3.

Kaplan-Meier Analysis of Time to Decannulation By Indication

Indication	Cardiopulmonary	Craniofacial	Neurological	Trauma	Upper Airway Obstruction
Total patients (N)	24	12	44	11	22
Number Decannulated	5	2	13	8	8
Estimated Median Time to Decannulation (Years) (95% CI)	3.5 (1.3, NR)	NR (5.2, NR)	NR (2.6, NR)	0.1 (0.0, NR)	4.2 (2.1, NR)
Estimated Proportion Decannulated By 1 Year (95% CI)	0.21 (0.00, 0.40)	0.00 (0.00, 0.00)	0.25 (0.09, 0.38)	0.86* (0.16, 0.98)	0.18 (0.00, 0.35)
Estimated Proportion Decannulated By 2 Years (95% CI)	0.35 (0.00, 0.58)	0.00 (0.00, 0.00)	0.29 (0.11, 0.43)	0.86 (0.16, 0.98)	0.26 (0.00, 0.46)

NR = median not reached or upper bound not estimable

^*P = 0.002 compared to cardiopulmonary group, P < 0.001 compared to all other groups