Table 2.
Characteristics of patients who received therapeutic hypothermia in the emergency medical centers, either in the emergency departments or after hospitalization. Those who were transported directly and those who were transferred from other hospitals were compared. Values are reported in counts and percentages in parentheses.
| Direct group | Transferred group | p value | |
|---|---|---|---|
| n = 1,164 | n = 634 | ||
| Gender (male) (n, %) | 807 (69.3) | 408 (64.4) | 0.036 |
| Age (years) | 0.025 | ||
| 15∼24 | 25 (2.1) | 15 (2.4) | |
| 25∼44 | 148 (12.7) | 87 (13.7) | |
| 45∼64 | 499 (42.9) | 233 (36.8) | |
| 65∼74 | 364 (31.3) | 200 (31.5) | |
| 75 or above | 128 (11.0) | 99 (15.6) | |
| Mode of transport | <0.001 | ||
| NFA ambulance | 1,092 (93.8) | 73 (11.5) | |
| Other ambulances | 19 (1.6) | 509 (80.3) | |
| Air transportation | 4 (0.3) | 30 (4.7) | |
| Other transportation | 49 (4.2) | 22 (3.5) | |
| AVPU scale | <0.001 | ||
| Verbal | 116 (10.0) | 52 (8.2) | |
| Pain | 289 (24.8) | 260 (41.0) | |
| Unresponsive | 759 (65.2) | 322 (50.8) | |
| Systolic blood pressure (mmHg) | 135.3 ± 45.9 | 125.2 ± 40.4 | <0.001 |
| Heart rate (beats per minute) | 95.0 ± 29.8 | 97.6 ± 26.8 | 0.109 |
| Respiratory rate (breaths per minute) | 20.0 ± 5.7 | 20.2 ± 5.8 | 0.617 |
| Body temperature (°C) | 36.1 ± 1.2 | 36.2 ± 1.4 | 0.613 |
| MEWS | 5.6 ± 2.3 | 5.6 ± 2.2 | 0.781 |
| ED disposition | 0.531 | ||
| Death | 25 (2.1) | 13 (2.1) | |
| Discharge | 2 (0.2) | 0 (0.0) | |
| Admission to ICU | 1106 (95.0) | 597 (94.2) | |
| Transfer to other hospital | 7 (0.6) | 7 (1.1) | |
| Admission to ward | 24 (2.1) | 17 (2.7) | |
| Survival in ED | 1,139 (97.9) | 621 (97.9) | 1.000 |
| Treatment outcome after hospitalization | 0.103 | ||
| Death | 448 (39.8) | 247 (40.4) | |
| Discharge | 354 (31.5) | 161 (26.3) | |
| Transfer to another hospital | 310 (27.6) | 199 (32.5) | |
| Hopeless discharge | 1 (0.1) | 0 (0.0) | |
| Others | 12 (1.1) | 5 (0.8) | |
| Overall survival rate | 690 (59.3) | 374 (59.0) | 0.945 |
EMC: emergency medical center; NFA: national fire agency; ED: emergency department; MEWS: modified emergency warning score; ICU: intensive care unit.