Table 3.

Outcome comparison

			Duration of	Duration of
		Extubation after	mechanical ventilation	ICU stay
Group	n	first SBT (%)	(days; mean ± SD)	(days; mean ± SD)	Reintubation (n [%])
Protocol group	47	83	6.7 ± 6.5	9.3 ± 8.2	5 (10.6)
Historical group	183	-	6.2 ± 7.0	7.2 ± 8.5	23 (17.4)
Esteban et al. [17]	205	86	-	12	38 (18.5)
Ely et al. [7]	149	75.8	4.5	8	5 (3)
Ely et al. [8]	1167	75.4	6	9	149 (14)
Kollef et al. [6]	179	-	2.9 ± 5.2	-	23 (12.8)

ICU = intensive care unit; SBT = spontaneous breathing test.