Table 1. Clinical characteristics of the study population.
STEMI, ST-elevation myocardial infarction; HTN, hypertension; DM, diabetes mellitus; EF, ejection fraction; CAD, coronary artery disease; SVCAD, single vessel coronary artery disease; DVCAD, double vessel coronary artery disease; TVCAD, triple vessel coronary artery disease; LM, left main coronary artery
| Variables | Group A | Group B | Group C |
| March – April 2020 | Jan – Feb 2020 | March- April 2019 | |
| Total no. of patients | 1139 | 1535 | 1537 |
| Average no. of Admissions (STEMI) / day | 18.6 ± 4.36* | 26.01 ± 4.90(p<0.001) | 24.8 ± 4.55(p<0.001) |
| Mean Age (years) | 55.52±11.54* | 55.98±12.05(p=0.320) | 52.72±13.80(p<0.001) |
| Male gender(%) | 80.7* | 78.4(p=0.146) | 77.2(p=0.029) |
| HTN (%) | 472 (41.4) | 596 (38.8) | 611 (39.7) |
| DM (%) | 396 (34.7) | 539 (35.1) | 521 (33.8) |
| Smoking (%) | 282 (24.7) | 403 (26.2) | 411 (26.7) |
| Mean Total ischemic time (min) | 429.25±272.16* | 359.78±148.04(p<0.001) | 346.75±207.31(p<0.001) |
| Mean EF(%) | 34.74±18.16* | 31.58±19.15(p<0.001) | 36.14±16.89(p=0.040) |
| CAD Burden (%) | |||
| SVCAD | 37.5 | 35.0 | 35.7 |
| DVCAD | 30.6 | 32.7 | 33.8 |
| TVCAD | 28.5 | 29.3 | 27.3 |
| LM±SV/DV/TVCAD | 3.4 | 2.9 | 3.2 |
| Mortality(%) | 5.3* | 4.1(p=0.182) | 3.2(p=0.007) |