Table 1.
Characteristics, delay times and outcomes of patients with confirmed ST-segment elevation acute myocardial infarction
| Valid n | 2019 | Valid n | 2020 | P | |
|---|---|---|---|---|---|
| Female sex | 524 | 109 (20.8) | 395 | 78 (19.8) | .694 |
| Age | 524 | 63.4 ± 0.6 | 395 | 61.9 ± 0.7 | .104 |
| Age > 80 y | 524 | 70 (13.4) | 395 | 37 (9.4) | .062 |
| Previous history of cardiovascular disease | 524 | 73 (13.9) | 395 | 64 (16.2) | .339 |
| First assisted in hospital | 524 | 232 (44.3) | 395 | 145 (36.7) | .021 |
| Sudden cardiac death | 524 | 33 (6.3) | 395 | 18 (4.6) | .254 |
| Killip III-IV | 501 | 53 (10.6) | 387 | 43 (11.1) | .800 |
| pPCI | 519 | 425 (81.1) | 394 | 337 (85.3) | .141 |
| TIMI flow pre (no flow) | 311 | 195 (62.7) | 296 | 195 (65.9) | .414 |
| TIMI flow post (normal) | 309 | 298 (96.4) | 292 | 279 (96) | .577 |
| Delay time, median [q25-q75] | |||||
| Patient delay | |||||
| Attended by EMS | 174 | 49 [24-90] | 156 | 59 [29-132.5] | .059 |
| Attended at hospitals | 302 | 115 [45-280] | 212 | 105 [52-284] | .898 |
| System delay | |||||
| Attended by EMS | 141 | 80 [65-98] | 133 | 83 [65-99] | .526 |
| Attended at hospitals | 266 | 94 [71-131] | 196 | 103.5 [80.5-133] | .051 |
| Total ischemia time | |||||
| Attended by EMS | 140 | 141 [115-193] | 134 | 160.5 [125-231] | .095 |
| Attended at hospital | 265 | 239.5 [150-434] | 192 | 239.5 [155–424] | .790 |
| Door-to-balloon time | 309 | 20 [15-27] | 295 | 22 [18-29] | .041 |
| 10-day mortality | 385 | 22 (5.7) | 340 | 24 (7.1) | .459 |
EMS, emergency medical system; pPCI, primary percutaneous coronary intervention; TIMI, Thrombolysis in Myocardial Infarction.
Data are expressed as No. (%), mean ± standard deviation or median [interquartile range].