Table 1 Baseline and procedure characteristics
| Â | All (n = 603) | Direct admission (n = 441) | Inter-facility transfer (n = 162) | P value |
|---|---|---|---|---|
Demographic characteristics and history | ||||
 Age, years (mean [SD]) | 67.9 (12.5) | 68.0 (12.3) | 67.4 (13.1) | 0.564 |
  ≥75 years, n (%) | 192 (31.8) | 140 (31.8) | 52 (32.1) | 0.934 |
 Women, n (%) | 138 (22.9) | 95 (21.5) | 43 (26.5) | 0.195 |
 Previous MI, n (%) | 69 (11.4) | 55 (12.5) | 14 (8.6) | 0.329 |
Presentation at PCI facility | ||||
 JCS on arrival | ||||
  0/I, n (%) | 558 (92.5) | 403 (91.4) | 155 (95.7) | 0.085 |
  II/III, n (%) | 30 (5.0) | 27 (6.1) | 3 (1.9) |  |
  Unknown, n (%) | 15 (2.5) | 11 (2.5) | 4 (2.5) |  |
 Killip class on arrival | ||||
  1/2, n (%) | 418 (69.3) | 301 (68.3) | 117 (72.2) | 0.639 |
  3/4, n (%) | 88(14.6) | 67 (15.2) | 21 (13.0) |  |
  Unknown, n (%) | 97 (16.1) | 73 (16.6) | 24 (14.8) |  |
Comparison of situations at symptom onset | ||||
 Location at STEMI onset |  | |||
  Urban medical regions, n (%) | 311 (51.6) | 265 (60.1) | 46 (28.4) | <0.001* |
  Rural medical regions, n (%) | 292 (48.4) | 176 (39.9) | 116 (71.6) |  |
 Witness | ||||
  Yes, n (%) | 311 (51.6) | 237 (53.7) | 74 (45.7) | 0.079 |
  No, n (%) | 292 (48.4) | 204 (46.3) | 88 (54.3) |  |
 Season | ||||
  Summer, n (%) | 282 (46.8) | 202 (45.8) | 80 (49.4) | 0.462 |
  Winter, n (%) | 321 (53.2) | 239 (54.2) | 82 (50.6) |  |
 Day of onset | ||||
  Weekday, n (%) | 416 (69.2) | 307 (69.9) | 109 (67.3) | 0.533 |
  Weekend or holiday, n (%) | 185 (30.8) | 132 (30.1) | 53 (32.7) |  |
 Time of onset | ||||
  Daytime, n (%) | 365 (60.5) | 261 (59.2) | 104 (64.2) | 0.264 |
  Nighttime, n (%) | 238 (39.5) | 180 (40.8) | 58 (35.8) |  |
Transport path | ||||
 EMS call | ||||
  Yes, n (%) | 405 (67.2) | 345 (78.2) | 60 (37.0) | <0.001* |
  No, n (%) | 198 (32.8) | 96 (21.8) | 102 (63.0) |  |
 Use of air transportation, n (%) | 7 (1.2) | 0 | 7 (4.2) | – |
Mechanical support/interventions additional to primary PCI | ||||
 IABP, n (%) | 71 (11.8) | 53 (12.0) | 18 (11.1) | 0.887 |
 CABG,n (%) | 10 (1.7) | 7 (1.6) | 3 (1.9) | 0.733 |
Time course | ||||
 TIT, min (median [IQR]) | 185 (125, 290) | 160 (114, 255) | 259 (170, 359) | <0.001* |
 ODT, min (median [IQR]) | 104 (56, 204) | 80 (50, 153) | 197 (120, 305) | <0.001* |
 ODT ≤ 120 min achieved, n (%) | 339 (56.2) | 298 (67.6) | 41 (25.3) | <0.001* |
 DBT, min (median [IQR]) | 63 (44, 90) | 67 (47, 95) | 54 (35, 70) | <0.001* |
 DBT ≤ 90 min achieved, n (%) | 454 (75.3) | 318 (72.1) | 136 (84.0) | 0.003* |
 FMCTB, min (median [IQR]) | 98 (71, 144) | 88 (66, 200) | 130 (95, 193) | <0.001* |
 FMCTB ≤ 120 min achieved, n (%) | 405 (67.2) | 332 (75.3) | 73 (45.1) | <0.001* |
 DIDO, min (median [IQR]) | 40 (13, 72) | – | 40 (13, 72) |  |
Outcome | ||||
 Death (CPC 5), n (%) | 38 (6.3) | 26 (5.9) | 12 (7.4) | 0.498 |
 Poor (CPC 3-5), n (%) | 55 (9.1) | 38 (8.6) | 17 (10.5) | 0.478 |
 Good (CPC 1-2), n (%) | 548 (90.9) | 403 (91.4) | 145 (89.5) |  |