| Variables | Groups of related variables | Mean (SD) or N (%) | |
| Femaleb,d | - | 2227 (19.5%) | |
| Agea,g | - | 68.10 (10.20) | |
| Years of school educationd,g | - | 6.92 (3.65) | |
| Weightg | Obesity | 75.87 (14.33) | |
| BMIa,g | 26.96 (4.48) | ||
| Smoker or ex-smokerb,d | - | 6645 (58.2%) | |
| Heart Rateg | - | 72.49 (13.38) | |
| Diastolic blood pressureg | Blood pressure | 76.28 (10.17) | |
| Systolic blood pressureg | 125.21 (19.41) | ||
| Mean blood pressurea,g | 92.58 (12.17) | ||
| NYHA classc (ref: “NYHA I”) | ≥II | NYHA | 10837 (95.0%) |
| ≥III | 3061 (26.8%) | ||
| ≥IV | 242 (2.1%) | ||
| Peripheral edemac,d (ref: “No”) | ≥Ankles | Peripheral edema | 1768 (15.5%) |
| ≥Knee | 316 (2.8%) | ||
| ≥Above | 159 (1.4%) | ||
| Main cause of HF b (ref: “Ischemic”) | Cardiomyopathy | - | 3126 (27.4%) |
| Hypertension | - | 1726 (15.3%) | |
| Other | - | 346 (3.0%) | |
| Not known | - | 175 (1.5%) | |
| Ascitesb,d | - | 147 (1.3%) | |
| Hepatomegalyb,d | - | 2188 (19.2%) | |
| Mitral insufficiencyb,d | - | 5461 (47.9%) | |
| CVP > 6 cm H20b,d | - | 1139 (10.0%) | |
| Basal pulmonary ralesb,d | - | 1732 (15.2%) | |
| Mid-apical pulmonary ralesb,d | - | 79 (0.7%) | |
| Pulmonary ralesb,d | - | 599 (5.2%) | |
| Aortic stenosisb,d | - | 315 (2.8%) | |
| Third heart sound (S3)b,d | - | 2177 (19.1%) | |
| Hematocritg | Hematology | 40.16 (4.53) | |
| Hemoglobing | 13.40 (1.60) | ||
| ePVSa,g | 4.57 (0.92) | ||
| Serum creatinineg | Renal function | 1.27 (0.44) | |
| eGFRa,g,h | 64.08 (22.63) | ||
| Serum potassiumg | - | 4.48 (0.50) | |
| Serum sodiumg | - | 139.49 (3.33) | |
| Uricemiag | - | 6.43 (1.94) | |
| Triglyceridesg | - | 137.92 (84.01) | |
| Cholesterol HDLg | Cholesterol | 47.58 (13.19) | |
| Total Cholesterolg | 175.10 (44.48) | ||
| Bilirubing | - | 0.84 (0.42) | |
| Glycemiag | - | 122.98 (46.60) | |
| NT-proBNPf,g | - | 1856.60 (2194.91) | |
| Diabetes mellitusb,d | - | 3481 (30.5%) | |
| Hypertensionb,d | - | 6470 (56.7%) | |
| Previous AMIb,e | - | 5421 (47.5%) | |
| Previous strokeb,e | - | 643 (5.6%) | |
| Previous hosp. for worsening HFb,e | - | 6526 (57.2%) | |
| Angina pectorisb,e | - | 2060 (18.1%) | |
| Coronary angioplastyb,d | - | 1478 (13.0%) | |
| Transient ischemic attack (TIA)b,d | - | 1228 (10.8%) | |
| COPDb,d | - | 2348 (20.6%) | |
| CABGb,e | - | 2847 (24.9%) | |
| Implantable defibrillatorb,d | - | 1020 (8.9%) | |
| Paroxystic AFb,d | - | 2756 (24.2%) | |
| Neoplasiab,d | - | 592 (5.2%) | |
| Definitive pace makerb,d | - | 1944 (17.0%) | |
| Waiting for cardiac transplantationb,d | - | 122 (1.1%) | |
| LVEFd,g | - | 32.58 (10.05) | |
| Bundle branch blockb | - | 3883 (34.0%) | |
| Atrial fibrillationb | - | 2087 (18.3%) | |
| Left ventricular hypertrophyb | - | 1885 (16.5%) | |
| Pathological Q wavesb | - | 2236 (19.6%) | |
| Normal ECG evaluationb | - | 415 (3.6%) | |
| ACE-inhibitorsa,b | - | 8782 (77.0%) | |
| Beta-blockersa,b | - | 7430 (65.1%) | |
| Calcium antagonistsa,b | - | 803 (7.0%) | |
| Diureticsa,b | - | 10813 (94.8%) | |