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Table 1 Baseline clinical characteristics

From: At what level of unconsciousness is mild therapeutic hypothermia indicated for out-of-hospital cardiac arrest: a retrospective, historical cohort study

Parameters Good recovery Bad recovery P value
CPC 1–2 (n = 138) CPC 3–5 (n = 151)
Age (year), median (IQR) 60 (53, 73) 66 (58, 73) <0.001
Male, n/total n (%) 110/138 (79.7) 114/151 (75.5) 0.392
Bystander CPR, n/total n (%) 79/138 (57.2) 66/151 (43.7) 0.022
VF or pulseless VT, n/total n (%) 65/138 (47.1) 54/151 (35.8) 0.050
Cardiac cause, n/total n (%) 67/138 (48.6) 50/151 (33.1) 0.007
Time interval between collapse and ROSC (min), median (IQR) 14 (10, 22) 25 (18, 42) <0.001
Without prehospital ROSC, n/total n (%) 12/138 (8.7) 40/151 (26.5) <0.001
Glasgow Coma Scale motor response score
 1 9 76  
 2 19 27  
 3 12 12 <0.001
 4 42 33  
 5 31 1  
 6 25 2  
Laboratory Data
 pH, median (IQR) 7.27 (7.19, 7.34) 7.09 (6.94, 7.26) <0.001
 Base excess (mmol/l), median (IQR) −7.8 (−14.1, −4.9) −13.7 (−18.7, −10.4) <0.001
 Lactate (mmol/l), median (IQR) 6.8 (4.8, 9.4) 9.8 (7.3, 12.1) <0.001
PCPS, n/total n (%) 11/138 (8.0) 44/151 (29.1) < 0.001
IABP, n/total n (%) 12/138 (8.7) 44/151 (29.1) <0.001
MTH 71/138 (51.4) 80/151 (53.0) 0.795
  1. IQR interquartile range, CPR cardio-pulmonary resuscitation, VF ventricular fibrillation, VT ventricular tachycardia, ROSC return of spontaneous circulation, PCPS percutaneous cardio-pulmonary support, IABP intra-aortic balloon pumping, MTH mild therapeutic hypothermia