- Clinical presentation and outcomes of patients younger and older than 45 years.
| Variable | Less than 45 (n=197) | 45 or more (n=205) | P-value |
|---|---|---|---|
| HR/min, mean±SD (range) | 88±19 (43-173) | 88 ± 20 (40-180) | 0.62 |
| SBP (mm Hg), mean±SD (range) | 133±25 (84-229) | 135 ± 25 (83-232) | 0.28 |
| DBP (mm Hg), mean±SD (range) | 86±17 (45-143) | 86 ± 16 (39-130) | 0.89 |
| SPO2, mean±SD (range) | 97% ± 3 (69-100) | 96% ± 4 (65-100) | 0.02 |
| Atypical presentation | 1 (0.50) | 2 (0.97) | 0.58 |
| Symptoms to door time, mean±SD (range) | 9 ± 19 (0.5-168) | 12 ± 28 (0.5-240) | 0.22 |
| Type | |||
| STEMI | 159 (81.0) | 159 (77.0) | 0.44 |
| Late STEMI | 38 (19.0) | 46 (23.0) | |
| Time of incidence | |||
| 00 to 06 | 40 (20.0) | 48 (23.0) | 0.52 |
| 06 to 12 | 53 (27.0) | 64 (31.0) | |
| 12 to 18 | 57 (29.0) | 52 (25.0) | |
| 18 to 00 | 47 (24.0) | 41 (20.0) | |
| Arrest | |||
| Pre-hospital | 1 (0.5) | 1 (0.5) | 0.98 |
| In-hospital | 4 (2.0) | 2 (1.0) | 0.38 |
| Killip class | |||
| I/II | 193 (97.0) | 183 (90.0) | 0.002 0.56 |
| III/IV | 5 (3.0) | 21 (10.0) | |
| Cardiogenic shock | 4 (2.0) | 6 (3.0) | |
| Arrhythmias | |||
| AF | 3 (1.5) | 2 (1.0) | 0.62 |
| Other arrhythmias | 8 (4.0) | 10 (5.0) | 0.69 |
| Anterior wall MI | 96 (49.0) | 113 (55.0) | 0.2 |
| Non-anterior wall MI | 101 (51.0) | 92 (45.0) | |
| Ejection fraction | |||
| <35% | 47 (24.0) | 62 (30.0) | 0.15 |
| >35% | 150 (76.0) | 143 (70.0) | |
| Thrombolysis | 32 (16.0) | 38 (18.0) | 0.27 |
| Invasive strategy | 130 (66.0) | 106 (52.0) | 0.004 |
| CABG referral | 1 (0.50) | 5 (2.5) | 0.12 |
| In-hospital MACE | |||
| Death | 3 (1.5) | 6 (2.9) | 0.49 |
| Stroke (TIA) | 2 (1.0) | 2 (1.0) | 0.97 |
| AKI | 1 (0.5) | 4 (2.0) | 0.19 |
Values are presented as numbers and percentages (%). AF: atrial fibrillation, AKI: acute kidney injury, DBP: diastolic blood pressure, HR: heart rate, MI: myocardial infarction, SBP: systolic blood pressure, SPO2: oxygen saturation, SD: standard deviation, MACE: major adverse cardiovascular events