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Table 1 Patient characteristics in each category (C)

From: Categorization of post-cardiac arrest patients according to the pattern of amplitude-integrated electroencephalography after return of spontaneous circulation

  All patients C1 C2 C3 C4  
n = 61 n = 20 n = 14 n = 10 n = 14 p value
Age (years)a 60 (46–68) 50 (44–63) 66 (52–72) 66 (45–69) 63 (58–71) 0.11
Male, n (%) 51 (84%) 15 (75%) 10 (71%) 10 (100%) 14 (100%) 0.09
Witnessed collapse, n (%) 57 (93%) 19 (95%) 12 (86%) 10 (100%) 13 (93%) 0.67
Initial shockable rhythm, n (%) 42 (70%) 16 (84%) 13 (93%) 6 (60%) 7 (50%) 0.02
Time from collapse to ROSC (min)a 23 (18–39) 19 (15–22) 22 (17–29) 46 (38–49) 39 (23–44) < 0.01
Cardiac etiology, n (%) 52 (85%) 18 (90%) 13 (93%) 9 (90%) 11 (79%) 0.66
 Acute coronary syndrome, n (%) 14 (23%) 2 (10%) 3 (21%) 4 (40%) 4 (29%) 0.28
GCS at admission 3 (3–3) 4 (3–6) 3 (3–4) 3 (3–3) 3 (3–3) < 0.01
Pupillary reflex at admission, n (%) 29 (48%) 15 (75%) 8 (57%) 2 (20%) 2 (14%) < 0.01
Coronary angiography, n (%) 54 (89%) 18 (90%) 14 (100%) 9 (90%) 11 (79%) 0.33
ECPR, n (%) 19 (31%) 4 (20%) 1 (7.1%) 7 (70%) 5 (36%) 0.01
Time from collapse to initiation of ECMO flow in ECPR patients (min)* 39 (15–56) 28 (15–53) 37 45 (33–55) 48 (38–56) 0.13
  1. ROSC return of spontaneous circulation, ECPR extracorporeal cardiopulmonary resuscitation, GCS Glasgow coma scale
  2. aMedian (interquartile range)