Table 5.

Patient characteristics and outcomes of propensity-matched patients

	Hypothermia-M group (n = 79)	Normothermia-M group (n = 79)	P value
Age (years)	60 (49 to 72)	61 (50 to 71)	0.62
Male gender	62 (78)	55 (70)	0.20
Pittsburgh overall performance category scale 1 before index cardiac arrest	78 (99)	79 (100)	>0.99
Initial rhythm			0.72
Ventricular fibrillation	23 (29)	25 (32)
Pulseless electrical activity	35 (44)	30 (38)
Asystole	21 (27)	24 (30)
Bystander cardiopulmonary resuscitation	42 (53)	37 (47)	0.43
Time interval from collapse to start of cardiopulmonary resuscitation (minutes)	8 (1 to 12)	5 (1 to 10)	0.29
Time interval from collapse to return of spontaneous circulation (minutes)	35 (22 to 49)	39 (14 to 50)	0.86
Hypertension	36 (46)	25 (32)	0.07
Diabetes mellitus	23 (29)	16 (20)	0.20
Previous history of heart disease	31 (39)	20 (25)	0.06
Previous history of myocardial infarction	12 (15)	5 (6)	0.07
Previous history of chronic heart failure	12 (15)	9 (11)	0.48
Cause of cardiac arrest
Acute coronary syndrome	35 (44)	20 (25)
Old myocardial infarction	8 (10)	7 (9)
Cardiomyopathy	8 (10)	4 (5)
Spasm of coronary artery	4 (5)	1 (1)
Others	18 (23)	14 (21)
Unknown	6 (8)	33 (42)
Emergency coronary angiography	44 (56)	20 (25)	<0.01
Primary percutaneous coronary intervention	23 (29)	9 (11)	<0.01
Use of intra-aortic balloon pump	44 (56)	15 (19)	<0.001
Use of extracorporeal life-support	21 (27)	5 (6)	<0.001
Duration of hospital stay (days)	16 (4 to 27)	1 (0 to 11)	<0.001
Favorable neurological outcome	24 (30)	23 (29)	0.86
Good cerebral performance	24 (30)	23 (29)
Coma or vegetative state	6 (8)	1 (1)
Dead	49 (62)	55 (70)
Thirty-day survival	32 (41)	23 (29)	0.13

Data presented as median (interquartile range) or n (%).