Table 1 Patient characteristics
| Variables |
Total (N = 754) |
|---|---|
| Baseline characteristics | |
| Sex (Men) | 448 (59.4%) |
| Age (years) | 75 [64–84] |
| 16–64 | 191 (25.3%) |
| 65–74 | 181 (24%) |
| ≥75 | 382 (50.7%) |
| Pre-hospital information | |
| Bystander witness | 208 (27.6%) |
| Bystander CPR | 276 (36.6%) |
| Shockable on initial rhythm | 62 (8.22%) |
| Advanced airway | 375 (49.7%) |
| In-hospital information | |
| Body temperature | 30 [26.4–31.3] |
| Measurement site | |
| Rectal | 151 (20%) |
| Bladder | 95 (12.6%) |
| Tympanic | 49 (6.5%) |
| Other/unknown | 459 (60.9%) |
| Cardiac rhythm on hospital arrival | |
| ROSC | 32 (4.24%) |
| Shockable | 57 (7.56%) |
| PEA | 128 (17%) |
| Asystole | 537 (71.2%) |
| ECMO implementation | 59 (7.82%) |
| Before ROSC | 48 |
| ROSC after hospital arrival | 157 (20.8%) |
| Time course (min) | |
| E-call to hospital arrival | 34 [29–43] |
| E-call to blood test | 41 [35–52] |
| E-call to ECMO | 70 [51.8–88] |
| E-call to ROSC after arrival | 51 [40–85] |
| Blood test on hospital arrival | |
| pH | 6.8 [6.63–6.97] |
| (Missing) | 50 (6.6%) |
| Lactate (mg/dL) | 135 [90.9–180] |
| (Missing) | 53 (7.0%) |
| Potassium (mmol/L) | 6.6 [4.9–9.6] |
| (Missing) | 383 (50.8%) |
| Outcomes | |
| Admission to ICU or ward | 152 (20.2%) |
| Death in ER | 602 (79.8%) |
| 1-month survival | 44 (5.8%) |
| 1-month CPC1,2 | 24 (3.2%) |