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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