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Table 1 Patient characteristics and cardiopulmonary resuscitation-related parameters

From: Prognostic indicators of survival and survival prediction model following extracorporeal cardiopulmonary resuscitation in patients with sudden refractory cardiac arrest

 

Total (n = 111)

Survivors (n = 21)

Non-survivors (n = 90)

p value

Age (years)

55.9 ± 15.2

47.0 ± 14.8

57.9 ± 14.6

0.003

 ≤56, n (%)

53 (47.7)

16 (76.2)

37 (41.1)

0.004

 >56, n (%)

58 (52.3)

5 (23.8)

53 (58.9)

 

Male, n (%)

79 (71.2)

17(80.9)

62 (68.9)

0.272

Location of arrest

   

0.777

 Out of hospital, n (%)

82 (73.9)

15 (71.4)

67 (74.4)

 

 Emergency department, n (%)

29 (26.1)

6 (23.6)

23 (25.6)

 

Witnessed arrest, n (%)

95 (85.6)

20 (95.2)

75 (83.3)

0.298

Bystander CPR, n (%)

85 (76.6)

19 (90.5)

66 (73.3)

0.151

First documented rhythm

   

0.055

 VF/VT, n (%)

53 (47.7)

14 (66.7)

39 (43.3)

 

 PEA, n (%)

32 (28.8)

6 (28.6)

26 (28.9)

 

 Asystole, n (%)

26 (23.4)

1 (4.8)

25 (27.8)

 

Charlson comorbidity score <2

92 (82.9)

18 (85.7)

74 (82.2)

>.999

Presumed etiology of arrest

   

>.999

 Cardiac, n (%)

104 (93.7)

20 (95.2)

84 (93.3)

 

 Non-cardiac, n (%)

7 (6.3)

1 (4.8)

6 (6.7)

 

Time interval from arrest to CPR start by healthcare provider

 

3 (0–9)

4 (0–8)

0.987

CPR duration, min

56 (37–81)

51(34–55)

61(42–89)

0.022

 ≤55

53 (47.7)

16 (76.2)

37 (41.1)

0.004

 >55

58 (52.3)

5 (23.8)

53 (58.9)

 

Any ROSC event before ECPR, n (%)

39 (35.1)

11 (52.4)

28 (31.1)

0.066

Re-arrest after attaining ROSC ≥ 20 min, n (%)

26 (23.4)

7 (33.3)

19 (21.1)

0.258

  1. Continuous variables are presented as mean ± SD or median (interquartile ranges). Categorical variables are presented as the number (%) of subjects
  2. CPR Cardiopulmonary resuscitation, VF/VT ventricular fibrillation/pulseless ventricular fibrillation, PEA pulseless electrical activity, ROSC return of spontaneous circulation, ECPR extracorporeal cardiopulmonary resuscitation