. Author manuscript; available in PMC: 2015 May 12.

Published in final edited form as: Crit Care Med. 2014 Dec;42(12):2493–2499. doi: 10.1097/CCM.0000000000000540

TABLE 1.

Demographic and Baseline Characteristics of Study Cohort

Study Characteristic	All Patients (n = 154)	TH (n = 118)	No TH (n = 36)	p
Demographics
Age, yr; mean ± sd	59±16	57±15	64±17	0.03^a
Female, n (%)	50 (32)	40 (34)	10 (28)	0.49

Comorbid conditions, n (%)
History of hypertension	74 (48)	58 (49)	16 (44)	0.62
History of coronary artery disease	29 (19)	23 (19)	6 (17)	0.70
History of congestive heart failure	22 (14)	15 (13)	7 (19)	0.31
History of diabetes mellitus	36 (23)	30 (25)	6 (17)	0.28
History of end-stage renal disease on hemodialysis	7 (5)	5 (4)	2 (6)	0.74

Characteristics of arrest
Initial rhythm ventricular tachycardia/ventricular fibrillation, n (%)	83 (54)	74 (62)	9 (25)	0.0001^a
Initial rhythm pulseless electrical activity/asystole, n (%)	71 (46)	44 (38)	27 (75)	0.0001^a
Time to return of spontaneous circulation; min; mean ± sd	23±17	23±17	26±21	0.25

TH = therapeutic hypothermia.

Denotes statistical significance.