Table 1. – Characteristics of the sample at hospital admission (general data and medical history).
| Variable | Acute coronary syndrome (763) | Heart failure (273) | |
|---|---|---|---|
| Age, m ± sd* | 59.8 ± 12.0 | 57.0 ± 14.1 | |
| Female sex | 225/763 (29.5%) | 119/273 (43.6%) | |
| Comorbidities | Systemic arterial hypertension | 497/633 (78.5%) | 108/260 (41.5%) |
| Diabetes Mellitus | 220/633 (34.8%) | 69/260 (26.5%) | |
| Dyslipidemia | 171/633 (27.0%) | 38/260 (14.6%) | |
| Stroke or transient ischemic attack | 49/633 (7.7%) | 18/260 (12.3%) | |
| Peripheral arterial disease | 38/633 (6.0%) | 17/260 (6.5%) | |
| Hypothyroidism | 35/633 (5.5%) | 41/260 (15.8%) | |
| Chronic pulmonary obstructive disease/Asthma | 47/633 (7.4%) | 29/260 (11.2%) | |
| Previous heart disease | Coronary disease | 162/633 (25.6%) | 29/260 (11.2%) |
| Acute myocardial infarction | 119/633 (18.8%) | 44/260 (16.9%) | |
| Heart failure | 30/633 (4.7%) | 236/260 (90.8%) | |
| Atrial fibrillation or atrial flutter | 21/633 (3.3%) | 99/260 (38.1%) | |
| Heart valve disease | 8/633 (1.3%) | 39/264 (15.2%) | |
| Chagas disease | 6/633 (0.8%) | 66/264 (25.8%) | |
| Previous cardiac procedures | Coronary angioplasty | 98/763 (12.8%) | 31/273 (11.4%) |
| Myocardial revascularization surgery | 39/763 (5.1%) | 8/273 (2.9%) | |
| Pacemaker | 6/763 (0.8%) | 43/273 (15.8%) | |
| Cardiac resynchronization | 2/763 (0.3%) | 4/273 (1.5%) | |
| Cardioverter-defibrillator | 5/763 (0.7%) | 39/273 (14.3%) | |
| Cardiac transplantation | - | 9/273 (6.3%) | |
| Smoking | Current and previous (total) | 509/761 (66.8%) | 139/266 (55.3%) |
| Current | 253/761 (33.2%) | 21/266 (7.9%) | |
| Previous | 256/761 (33.6%) | 118/266 (44.4%) | |
| No | 252/761 (33.1%) | 127/266 (47.7%) | |
* Variable as mean ± standard deviation (m±sd)