Table 1.
Patient characteristics in each category (C)
| 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 |
ROSC return of spontaneous circulation, ECPR extracorporeal cardiopulmonary resuscitation, GCS Glasgow coma scale
aMedian (interquartile range)