Table 2:

Outcomes of critically ill patients with traumatic brain injury, anoxic brain injury, subarachnoid hemorrhage or intracerebral hemorrhage admitted to an intensive care unit in Calgary, Alberta, from Jan. 1, 2002, to June 30, 2012

Characteristic	% (no. of patients)^*			p value^†
Characteristic	Jan. 1, 2002, to June 30, 2005	July 1, 2005, to Dec. 31, 2008	Jan. 1, 2009, to June 30, 2012	p value^†
Neurologic death
Total, n = 2788	6.9 (64/924)	5.2 (53/1019)	4.7 (40/845)	0.1
Traumatic brain injury, n = 1501	6.1 (31/509)	3.4 (19/565)	2.8 (12/427)	0.02
Anoxic brain injury, n = 516	4.0 (6/149)	8.2 (15/182)	5.9 (11/185)	0.3
Subarachnoid hemorrhage, n = 408	10.6 (15/141)	10.7 (16/149)	8.5 (10/118)	0.8
Intracerebral hemorrhage, n = 363	9.6 (12/125)	2.4 (3/123)	6.1 (7/115)	0.06
Hospital mortality
Total, n = 2788	42.0 (388/924)	39.0 (397/1019)	38.8 (328/845)	0.3
Traumatic brain injury, n = 1501	27.5 (140/509)	26.9 (152/565)	23.4 (100/427)	0.3
Anoxic brain injury, n = 516	73.8 (110/149)	67.6 (123/182)	73.0 (135/185)	0.4
Subarachnoid hemorrhage, n = 408	49.6 (70/141)	40.9 (61/149)	34.7 (41/118)	0.05
Intracerebral hemorrhage, n = 363	54.4 (68/125)	49.6 (61/123)	45.2 (52/115)	0.4
Length of stay in intensive care unit, median, d (IQR)
All patients	3.0 (1.4–7.8)	4.1 (1.7–10.6)	3.8 (1.7–8.6)	< 0.001
Patients who died in an intensive care unit	2.1 (0.7–4.6)	2.0 (0.9–5.5)	2.1 (0.9–4.8)	0.2

Note: IQR = interquartile range.
↵* Unless otherwise stated.
↵† Nonparametric testing (Kruskal–Wallis test) was used for continuous variables and χ² testing was used for discrete variables.