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Table 3 Characteristics of patients with a resuscitation interval of ≤30 min

From: Effectiveness of lower target temperature therapeutic hypothermia in post-cardiac arrest syndrome patients with a resuscitation interval of ≤30 min

Variables Group L Group M P value
(32.0–33.5 °C) (34.0–35.0 °C)
n = 24 n = 281
Age (years) 50 (38–57) 62 (53–69) <0.001
Male (%) 19 (79 %) 228 (81 %) 0.789
Bystander CPR (%) 9 (38 %) 146 (52 %) 0.205
 Witness (%) 17/21 (81 %) 205/256 (80 %)  
Cardiogenic cardiac arrest (%) 23 (96 %) 263 (70 %) 1.000
 VF/VT (%) 21/24 (88 %) 185/277 (67 %)  
Target temperature (°C) 33.0 (32.0–33.0) 34.0 (34.0–34.0) <0.001
 Over-cooling (%) 7/24 (29 %) 54/270 (20 %)  
Interval from collapse to ROSC (min) 17 (11–23) 15 (10–22) 0.469
Interval from ROSC to target temperature (min) 194 (165–324) 180 (95–360) 0.460
Duration of time at the target temperature (h) 34 (24–49) 24 (24–38) 0.013
Rewarming time (days) 3 (2–4) 2 (1–3) <0.001
CPC 1-2 on day 30 (%) 21 (88 %) 181 (64 %) 0.024
  1. Values are presented as the n (%) or median (interquartile range)
  2. CPR cardiopulmonary resuscitation, VF ventricular fibrillation, VT ventricular tachycardia, ROSC return of spontaneous circulation, CPC cerebral performance category