Table 2.
Pre-hospital clinical characteristics of the KRAMI-RCC patients by diagnosis of NSTEMI and STEMI at arrival.
| Characteristics | NSTEMI (N = 6621) | STEMI (N = 5079) | Total (N = 11,700) a |
|---|---|---|---|
| Symptom occurring places | |||
| Unknown | 821 (12.4%) | 472 (9.3%) | 1293 (11.1%) |
| In home | 4215 (63.7%) | 3122 (61.6%) | 7337 (62.8%) |
| Outdoors | 1576 (23.8%) | 1476 (29.1%) | 3052 (26.1%) |
| Symptom type | |||
| Chest pain | 5603 (84.6%) | 4634 (91.2%) | 10,237 (87.5%) |
| Dyspnea | 2251 (34.0%) | 1330 (26.2%) | 3581 (30.6%) |
| Others b | 3766 (56.9%) | 3151 (62.0%) | 6917 (59.1%) |
| Cognition of AMI at symptom | 1222 (18.5%) | 699 (13.8%) | 1921 (16.4%) |
| Symptom to first medical contact time (min), median (IQR) | 120.0 (50.0;343.0) | 66.0 (30.0;180.0) | 90.0 (37.0;248.0) |
| Symptom to arrival time (min), median (IQR) | 196.0 (85.0;452.0) | 119.0 (60.0;240.0) | 153.0 (65.0;336.0) |
| Symptom to arrival time | |||
| <=60 min | 915 (18.5%) | 1291 (27.8%) | 2206 (23.0%) |
| 60–180 min | 1425 (28.8%) | 1746 (37.6%) | 3171 (33.0%) |
| >180 min | 2614 (52.8%) | 1607 (34.6%) | 4221 (44.0%) |
| Door to device time at STEMI patients (min), median (IQR) | - | 55.0 (44.0;66.0) | - |
| Type of transport to emergency room | |||
| Public ambulance | 1354 (20.5%) | 1596 (31.4%) | 2950 (25.2%) |
| Private ambulance | 2293 (34.6%) | 2132 (42.0%) | 4425 (37.8%) |
| Cares or buses | 2887 (43.6%) | 1327 (26.1%) | 4214 (36.0%) |
| Walking | 87 (1.3%) | 24 (0.5%) | 111 (0.9%) |
| Transfer from other hospitals | 3330 (50.3%) | 2670 (52.6%) | 6000 (51.3%) |
NSTEMI: Non-ST elevation myocardial infarction; STEMI: ST elevation myocardial infarction; SD: Standard deviation. a Among registered 11,894 patients, 136 were excluded because they died or were transferred to another hospital prior to diagnosis. b One or more of the following symptoms: Loss of consciousness, cold sweat, systemic weakness, vertigo, stomach pain, and radiating pain.