Table 2.
Demographic findings according to the relationship between the effectiveness of resuscitation.
| Parameter | (A) Died on scene (n = 189) | (B) ROSC (n = 28) | (C) Admission under CPR (n = 81) | P-value | P |
|---|---|---|---|---|---|
| Age, mena (SD) | 67.9 (16.7) | 58.3 (20.7) | 62.0 (15.9) | A vs. B = 0.028 A vs. C = 0.007 Other = NS |
0.002 |
| Age of men | 65.5 (16.7) | 54.6 (20.2) | 56.3 (18.5) | A vs. B = 0.007 A vs. C = 0.016 Other = NS |
< 0.001 |
| Age of women | 72.1 (72.3) | 66.1 (20.4) | 70.2 (17.4) | A vs. B = 0.001 A vs. C = 0.023 Other = NS |
< 0.001 |
| Sex: | |||||
| Male (%) | 120 (63.5) | 19 (67.9) | 53 (65.4) | NS | 1.0 |
| Female (%) | 69 (36.5) | 9 (32.1) | 28 (24.6) | ||
| Weekday (Monday to Friday) | 138 (73.0) | 18 (64.3) | 61 (75.3) | NS | 1.0 |
| Weekend (Saturday and Sunday) | 51 (27.0) | 10 (35.7) | 20 (24.7) | NS | |
| Morning (8 am to 4 pm) | 77 (40.7) | 9 (32.1) | 34 (42.0) | NS | 0.460 |
| Evening (4 am to 11 pm) | 57 (30.2) | 14 (50.0) | 24 (29.6) | NS | |
| Night (11 pm to 8 am) | 55 (29.1) | 5 (17.9) | 23 (28.4) | NS | |
| Time from call to contact with patient, min | 10.8 (5.9) | 10.0 (5.9) | 9.4 (5.8) | NS | 0.427 |
| Time from call to hospital arrival, min | 43.6 (18.9) | 42.5 (24.0) | NS | 0.347 | |
| Time from contact with patient to hospital arrival | 54.6 (21.4) | 53.4 (24.1) | NS | 0.249 | |
| Cardiac arrest etiology | |||||
| Cardiac | 142 (75.1) | 18 (64.3) | 60 (74.1) | NS | 1.0 |
| Non-cardiac | 47 (24.9) | 10 (35.7) | 21 (25.9) | ||
| Bystander CPR | 23 (12.2) | 7 (25.0) | 7 (8.6) | NS | 1.0 |
| SCA in the presence of EMS | 12 (6.3) | 2 (7.1) | 6 (7.4) | NS | 1.0 |
| The reason for the call EMS | |||||
| Sudden cardiac arrest | 57 (30.2) | 6 (21.4) | 18 (22.2) | NS | 0.650 |
| Unconscious | 54 (28.6) | 8 (28.6) | 27 (33.3) | ||
| Syncope | 23 (12.2) | 3 (10.7) | 11 (13.6) | ||
| Chest pain | 6 (3.2) | 0 (0.0) | 3 (3.7) | ||
| Dyspnoea | 21 (11.1) | 4 (14.3) | 8 (10.0) | ||
| Convulsions | 4 (2.1) | 3 (10.7) | 2 (2.5) | ||
| Choking | 2 (1.1) | 0 (0.0) | 1 (1.2) | ||
| Hemorrhage, bleeding | 1 (0.5) | 0 (0.0) | 0 (0.0) | ||
| Injury | 3 (1.6) | 0 (0.0) | 0 (0.0) | ||
| Others | 18 (9.5) | 4 (14.3) | 11 (13.6) | ||
| Initial heart rhythm | |||||
| Asystole | 119 (63.0) | 15 (53.6) | 37 (45.7) | A vs. C = 0.031 Other= NS |
0.026 |
| PEA | 39 (20.6) | 4 (14.3) | 19 (23.4) | A vs. B = 0.034 B vs. C = 0.019 Other = NS |
|
| VF/pVT | 31 (16.4) | 9 (32.1) | 25 (30.9) | A vs. B = 0.003 A vs. C = 0.005 Other = NS |
|
CPR — cardiopulmonary resuscitation; EMS — emergency medical service; NS — not statistically significant; PEA — pulseless electrical activity; pVT — pulseless ventricular tachycardia; SCA — sudden cardiac arrest; VF — ventricular fibrillation