TABLE 1.
Baseline and clinical characteristics of STEMI patients according to the year of hospitalization
| Variable | Year 2020 (N = 73) | Year 2019 (N = 95) | Difference (95% CI) | P value |
|---|---|---|---|---|
| Age (y) | 61.6 ± 13.1 | 60.6 ± 13.9 | 1.0 (−3.2, 5.1) | 0.65 |
| Female | 14 (19.2) | 27 (28.4) | −9.5 (−23.3, 4.8) | 0.17 |
| Hypertension | 43 (58.9) | 56 (59.0) | −0.04 (−16.3, 16.2) | 1.00 |
| Hyperlipidemia | 39 (53.4) | 51 (53.7) | −0.3 (−16.7, 16.2) | 0.97 |
| Current smoking | 36 (49.3) | 55 (57.9) | −8.6 (−25.0, 7.8) | 0.27 |
| Diabetes mellitus | 16 (21.9) | 22 (23.2) | −1.2 (−15.2, 12.7) | 0.85 |
| Previous MI | 7 (9.6) | 5 (5.3) | 4.3 (−5.0, 13.7) | 0.28 |
| Previous PCI | 7 (9.6) | 9 (9.5) | 0.1 (−10.1, 10.3) | 0.98 |
| Previous CABG | 2 (2.7) | 2 (2.1) | 0.6 (−5.3, 6.6) | 1.00 |
| Previous stroke | 10 (13.7) | 12 (12.6) | 1.1 (−10.5, 12.6) | 0.84 |
| Previous heart failure | 2 (2.7) | 2 (2.1) | 0.6 (−5.3, 6.6) | 1.00 |
| Previous renal insufficiency | 0 | 5 (5.3) | −5.3 (−11.0, 0.4) | 0.07 |
| Heart rate | 76.0 ± 19.9 | 75.8 ± 18.4 | 0.2 (−5.8, 6.2) | 0.95 |
| Systolic BP (mm Hg) | 134.3 ± 23.4 | 131.3 ± 23.7 | 3.0 (−4.4, 10.3) | 0.43 |
| Diastolic BP (mm Hg) | 81.6 ± 15.9 | 78.2 ± 16.7 | 3.3 (−1.8, 8.4) | 0.20 |
| LV (mm) | 50.0 ± 5.2 | 49.2 ± 5.1 | 0.8 (−0.8, 2.4) | 0.34 |
| Ejection fraction (%) | 51.4 ± 7.7 | 52.3 ± 7.6 | −0.9 (−3.3, 1.5) | 0.45 |
| Primary value TNI (ng/mL) | 0.2 (0.04, 1.5) | 0.2 (0.05, 3.2) | 0.003 (−0.07, 0.11) | 0.88 |
| Peak value TNI (ng/mL) | 22.6 (8.4, 44.0) | 23.0 (11.8,44.7) | −2.9 (−8.6, 3.1) | 0.33 |
| Primary value NT-proBNP (pg/fL) | 199.0 (61.4, 553.0) | 153.2 (40.7, 723.0) | −1.0 (−70.5, 56.4) | 0.96 |
| Peak value NT-proBNP (pg/fL) | 1927.0 (1074.0, 3511.0) | 1957.0 (921.6, 4014.0) | −74.8 (−586.6, 456.8) | 0.78 |
| D-B time of primary PCI (min) | 122.5 (78.5, 187.5) | 106.0 (80.0, 138.0) | 16.0 (−7.0, 46.0) | 0.15 |
| Killip classification | ||||
| I | 59 (80.8) | 82 (86.3) | −5.5 (−18.1, 7.1) | 0.34 |
| II | 8 (11.0) | 10 (10.5) | 0.4 (−10.2, 11.1) | 0.93 |
| III | 2 (2.7) | 1 (1.1) | 1.7 (−3.8, 7.2) | 0.58 |
| IV | 4 (5.5) | 2 (2.1) | 3.4 (−3.8, 10.6) | 0.41 |
| Hours after symptom onset | ||||
| 0-12h | 56 (76.7) | 70 (73.7) | 3.0 (−11.3, 17.4) | 0.65 |
| 12h-24h | 10 (13.7) | 17 (17.9) | −4.2 (−16.4, 8.0) | 0.46 |
| 24h-48h | 6 (8.2) | 6 (6.3) | 1.9 (−7.3, 11.1) | 0.63 |
| Type of AMI | ||||
| Extensive anterior wall | 13 (17.8) | 22 (23.2) | −5.4 (−18.8, 8.1) | 0.40 |
| Anterior wall | 19 (26.0) | 20 (21.1) | 5.0 (−9.2, 19.2) | 0.45 |
| Inferior wall | 41 (56.2) | 47 (49.5) | 6.7 (−9.7, 23.1) | 0.39 |
| High lateral wall | 0 | 6 (6.3) | −6.3 (−12.4, −0.2) | 0.04 |
| Clinical therapy | ||||
| Primary PCI | 11 (15.1) | 88 (92.6) | −77.6 (−88.5, −66.6) | <0.01 |
| Thrombolytic therapy | 15 (20.6) | 0 | 20.6 (10.1, 31.0) | <0.01 |
| Medical treatment | 47 (64.4) | 7 (7.4) | 57.0 (43.6, 70.4) | <0.01 |
Data are presented as n (%), mean + SD, or median (interquartile range). AMI, acute myocardial infarction; BP, blood pressure; CABG, coronary artery bypass grafting; D-B, door to balloon; LV, left ventricle; MI, myocardial infarction; PCI, percutaneous coronary intervention; TNI, troponin I.