Table 1.
Basic statistics of the variables of the study subjects categorized according to neurological outcome.
| Predictor Variables | Good Neurological Outcomes (n = 105) | Poor Neurological Outcomes (n = 5634) | p-Value | |
|---|---|---|---|---|
| Demographics | Age (median, (IQR)) | 57 (47–66) | 71 (58–80) | <0.001 |
| Male sex (n, %) | 72 (68.6%) | 3596 (63.8%) | 0.367 | |
| Hypertension (n, %) | 45 (43.0%) | 2268 (40.3%) | 0.743 | |
| Diabetes mellitus (n, %) | 22 (21.0%) | 1438 (25.5%) | 0.099 | |
| Dyslipidemia (n, %) | 5 (4.76%) | 259 (4.60%) | 0.971 | |
| Pre-hospital | Witnessed (n, %) | 85 (81.0%) | 3149 (55.9%) | <0.001 |
| Occurrence at house (n, %) | 39 (37.1%) | 3687 (65.4%) | <0.001 | |
| Bystander CPR (n, %) | 39 (37.1%) | 2702 (48.0%) | 0.051 | |
| Automated external defibrillation use (n, %) | 3 (2.85%) | 55 (0.976%) | 0.152 | |
| First ECG rhythm (n, %) | <0.001 | |||
| Ventricular fibrillation | 47 (44.8%) | 648 (11.5%) | ||
| Pulseless ventricular tachycardia | 2 (1.90%) | 26 (0.461%) | ||
| Pulseless electrical activity | 31 (29.5%) | 1150 (20.4%) | ||
| Asystole | 12 (11.4%) | 3451 (61.3%) | ||
| Airway (n, %) | 72 (68.6%) | 1083 (19.2%) | <0.001 | |
| 4483 (79.6%) | 0.007 | |||
| Hospital | Endotracheal intubation (n, %) | 99 (94.3%) | 5015 (89.0%) | 0.347 |
| First ECG rhythm (n, %) | <0.001 | |||
| Ventricular fibrillation | 37 (35.2%) | 290 (5.14%) | ||
| Pulseless ventricular tachycardia | 1 (0.952%) | 13 (0.231%) | ||
| Pulseless electrical activity | 38 (36.2%) | 1078 (19.1%) | ||
| Asystole | 24 (22.9%) | 4114 (73.0%) | ||
| Use of mechanical compressor (n, %) | 17 (16.2%) | 925 (16.4%) | 0.955 | |
| Total epinephrine (mg, median, (IQR)) | 2 (1–4) | 6 (3–9) | <0.001 | |
| Defibrillation number (median, (IQR)) | 0 (0–3) | 0 (0–0) | <0.001 | |
| Duration | Duration of resuscitation, (min, median, (IQR)) | |||
| Total | 27 (15–43) | 55 (42–71) | <0.001 | |
| Pre-hospital | 17 (7–26) | 26 (19–36) | <0.001 | |
| Hospital | 6 (3–12) | 20 (11–30) | <0.001 | |
| No flow time, (min, median, (IQR)) | 0 (0–5) | 0 (0–8) | 0.016 | |
CPR: Cardiopulmonary resuscitation, IQR: Interquartile range, ECG: electrocardiography.