Table 5 Descriptive statistics of the study population – Experiment 3
From: Machine learning prediction of mortality in Acute Myocardial Infarction
| Â | Â | Overall study sample | Mortality |
|---|---|---|---|
Total | Â | 445 | 32 (7.2%) |
Age Group |  < 70 | 307 (69.0%) | 7 (2.3%) |
 ≥ 70 | 138 (31.0%) | 25 (18.1%) | |
Sex | Female | 107 (24.0%) | 10 (9.3%) |
Male | 338 (76.0%) | 22 (6.5%) | |
BMI | Excess (≥ 25) | 278 (62.5%) | 18 (6.5%) |
Not excess (< 25) | 123 (27.6%) | 8 (6.5%) | |
NA | 44 (9.9%) | 6 (13.6%) | |
Symptoms | Asymptomatic | 4 (0.9%) | 0 (0.0%) |
Tiredness | 1 (0.2%) | 0 (0.0%) | |
Dyspnea | 5 (1.1%) | 2 (40.0%) | |
Chest pain | 409 (91.9%) | 26 (6.4%) | |
Cardiac arrest/Sudden death aborted | 6 (1.3%) | 0 (0.0%) | |
Syncope | 6 (1.3%) | 0 (0.0%) | |
Dizziness | 8 (1.8%) | 3 (37.5%) | |
NA | 6 (1.3%) | 1 (16.7%) | |
ACS Time |  < 6 h | 285 (64.0%) | 17 (6.0%) |
6Â h to 12Â h | 81 (18.2%) | 7 (8.6%) | |
12Â h to 24Â h | 39 (8.8%) | 3 (7.7%) | |
 < 7 days | 25 (5.6%) | 3 (12.0%) | |
 < 15 days | 3 (0.7%) | 0 (0.0%) | |
Unknown | 1 (0.2%) | 0 (0.0%) | |
NA | 11 (2.5%) | 2 (18.2%) | |
Heart Rate | AVB 2nd degree, Mobitz I | 2 (0.4%) | 1 (50.0%) |
AVB 2nd degree, Mobitz II | 1 (0.2%) | 0 (0.0%) | |
AVB 3rd degree | 3 (0.7%) | 2 (66.7%) | |
Atrial fibrillation | 18 (4.0%) | 4 (22.2%) | |
Pacing | 6 (1.3%) | 0 (0.0%) | |
Junctional rhythm | 1 (0.2%) | 1 (100.0%) | |
Sinus rhythm | 389 (87.4%) | 24 (6.2%) | |
NA | 25 (5.6%) | 0 (0.0%) | |
N. º of Segments with Injury | 1 | 126 (28.3%) | 5 (4.0%) |
2 | 107 (24.0%) | 6 (5.6%) | |
3 | 79 (17.8%) | 4 (5.1%) | |
4 | 51 (11.5%) | 4 (7.8%) | |
5 | 33 (7.4%) | 3 (9.1%) | |
6 | 24 (5.4%) | 6 (25.0%) | |
7 | 15 (3.4%) | 2 (13.3%) | |
8 | 5 (1.1%) | 2 (40.0%) | |
9 | 1 (0.2%) | 0 (0.0%) | |
10 | 4 (0.9%) | 0 (0.0%) |