Table 1 Demographics and descriptive clinical data of cardiac arrests
|  | No feedback period (N = 30) | Feedback period (N = 30) | P-value |
|---|---|---|---|
Demographics | |||
 Age (year) | 65.3 (14.6) | 67.5 (12.9) | 0.54 |
Sex | Â | Â | 0.17 |
 Male | 17 (56.7%) | 23 (76.7%) | |
 Female | 13 (43.3%) | 7 (23.3%) | |
 Height (cm) | 164.1 (9.2) | 164.0 (8.3) | 0.96 |
 Body weight (kg) | 60.2 (12.9) | 63.9 (13.7) | 0.29 |
Descriptive clinical data | |||
 APACHE II score | 40 (10) | 38 (11) | 0.50 |
Cardiac arrest location | Â | Â | 1.00 |
 Medical ICU | 27 (90.0%) | 27 (90.0%) |  |
 Surgical ICU | 3 (10.0%) | 3 (10.0%) |  |
Initial rhythm | Â | Â | 0.22 |
 Asystole | 13 (43.3%) | 7 (23.3%) |  |
 Pulseless electrical activity | 12 (40.0%) | 18 (60.0%) |  |
 Ventricular fibrillation/Pulseless ventricular tachycardia | 5 (16.7%) | 5 (16.7%) |  |