. Author manuscript; available in PMC: 2013 Jul 1.

Published in final edited form as: Crit Care Med. 2012 Jul;40(7):2102–2108. doi: 10.1097/CCM.0b013e318250aa5a

Table 1.

Patient characteristics

Characteristic	Cardiac arrest patients (n=88)	ICU transfer patients (n=2820)	Controls (n=44519)
Age, mean (SD), years	64 (16)^*	60 (16)^*	54 (18)
Female sex	50 (57)	1364 (48)^*	25444 (57)
Admitting service
Medical	65 (73)^*	1560 (55)^*	27804 (62)
Surgical	23 (26)^*	1223 (43)^*	13962 (31)
Unknown	0 (0)^*	37 (1)^*	2753 (6)
Length of stay, median (IQR)	11 (5–26)^*	11 (7–19)^*	3 (1–5)
Hours of ward data, median (IQR)	51 (22–166)	40 (13–103)^*	51 (26–108)
Prior ICU stay	36 (41)^*	423 (15)^*	3998 (9)
RRT call during study period	6 (7)^*	274 (10)^*	116 (0.3)
Survived to discharge	27 (31)^*	2410 (85)^*	44399 (99.7)

Abbreviations: IQR, interquartile range; RRT, rapid response team; ICU, intensive care unit.

Denotes statistically different than controls at P<0.05

Data are shown as number (percentage) unless otherwise specified.