Table 1.
Basic characteristics of TOHCA patients with and without sustained ROSC
| Variable | Non-sustained ROSC (n = 5,634, 68.4%) | Sustained ROSC (n = 2,603, 31.6%) | P-value |
|---|---|---|---|
| Age (yr) | 54 (41–67) | 54 (41–66) | 0.230 |
| Sex | < 0.001 | ||
| Female | 1,656 (29.4) | 615 (23.6) | |
| Male | 3,978 (70.6) | 1,988 (76.4) | |
| Metropolitan city | 0.594 | ||
| No | 3,551 (63.0) | 1,624 (62.4) | |
| Yes | 2,083 (37.0) | 979 (37.6) | |
| Place of cardiac arrest | 0.013 | ||
| Non-public places | 1,980 (35.1) | 841 (32.3) | |
| Public places | 3,654 (64.9) | 1,762 (67.7) | |
| Witnessed cardiac arrest | < 0.001 | ||
| No | 3,402 (60.4) | 1,411 (54.2) | |
| Yes | 2,232 (39.6) | 1,192 (45.8) | |
| Bystander CPR | 0.771 | ||
| No | 5,398 (95.7) | 2,496 (95.9) | |
| Yes | 241 (4.3) | 107 (4.1) | |
| Initial cardiac rhythm | 0.057 | ||
| Non-shockable | 5,580 (99.0) | 2,565 (98.5) | |
| Shockable | 54 (1.0) | 38 (1.5) | |
| Hospital cardiac rhythm | 0.223 | ||
| Non-shockable | 5,588 (99.2) | 2,574 (98.9) | |
| Shockable | 46 (0.8) | 29 (1.1) | |
| Time interval (min) | |||
| Cardiac arrest to ED arrivala) | 24 (18–34) | 22 (15–30) | < 0.001 |
| Mechanism of trauma | < 0.001 | ||
| Traffic accident | 3,421 (60.7) | 1693 (65.0) | |
| Fall | 1,717 (30.5) | 608 (23.4) | |
| Collision | 320 (5.7) | 229 (8.8) | |
| Stab injury | 171 (3.0) | 70 (2.7) | |
| Gunshot injury | 5 (0.1) | 3 (0.1) |
Values are presented as median (interquartile range) or number (%).
TOHCA, traumatic out-of-hospital cardiac arrest; ROSC, return of spontaneous circulation; CPR, cardiopulmonary resuscitation; ED, emergency department.
a)
Defined as time interval from emergency medical service calling for TOHCA to ED arrival of patients on the documented time of TOHCA to ED arrival.