Background characteristics between patients with a prior congestive heart failure (CHF) diagnosis and no prior CHF diagnosis (n=723)
| Variable | CHF, n=276 | No CHF, n=447 | Missing values (% of total) |
| Age (year); median (IQR) | 81.6 (73.4–87.8) | 72.5 (60.6–82.0) | 0 (0%) |
| Gender (male), N (%) | 135 (48.9%) | 190 (42.5%) | 0 (0%) |
| BMI (kg/m2); median (IQR) | 26.8 (23.7–30.8) | 25.0 (22.0–28.7) | 18 (2.5%) |
| Systolic blood pressure (mm Hg); mean (±SD) | 143±31 | 148±27 | 6 (0.8%) |
| Heart rate (beats per minute) mean (±SD); | 92±24 | 97±23 | 7 (1.0%) |
| Oxygen saturation (%), median (IQR) | 93 (89–96) | 94 (90–97) | 8 (1.1%) |
| Respiratory rate (breaths per minute); mean (±SD) | 26±7 | 24±7 | 11 (1.5%) |
| Haemoglobin (g/L); mean (±SD) | 129±19 | 134±20 | 12 (1.7%) |
| Creatinine (µmol/L), median (IQR) | 99 (77–139) | 75 (62–92) | 8 (1.1%) |
| Estimated GFR (mL/min), median (IQR) | 46 (29–62) | 68 (54–84) | 13 (1.8%) |
| NT-pro-BNP (ng/mL), median (IQR) | 4.2 (2.0–9.1) | 0.5 (0.1–2.2) | 76 (10.9%) |
| Endostatin (ng/mL); median (IQR) | 79.0 (60.6–110.6) | 56.9 (41.0–74.9) | 0 (0%) |
| METTS, N (%) | 3 (0.4%) | ||
| Prio green | 4 (1.4%) | 34 (7.6%) | |
| Prio yellow | 121 (43.8%) | 194 (43.4%) | |
| Prio orange | 102 (37.0%) | 154 (34.5%) | |
| Prio red | 48 (17.4%) | 63 (14.1%) | |
| Dyspnoea level, N (%) | 9 (1.2%) | ||
| NYHA 1 unaffected | 39 (14.1%) | 106 (23.7%) | |
| NYHA 2 mild symptoms, N | 104 (37.7%) | 153 (34.2%) | |
| NYHA 3 marked symptoms | 55 (19.9%) | 76 (17.0%) | |
| NYHA 4 severe symptoms | 75 (27.2%) | 106 (23.7%) | |
| Ever smoker | 181 (65.6%) | 313 (70.0%) | 0 (0%) |
| Cardiovascular comorbidities | |||
| CAD | 157 (56.9%) | 77 (17.2%) | 4 (0.6%) |
| Atrial fibrillation/flutter | 165 (59.8%) | 84 (18.8%) | 2 (0.3%) |
| Diabetes Mellitus | 80 (29.0%) | 63 (14.1%) | 3 (0.4%) |
| Hypertension | 165 (59.8%) | 174 (38.9%) | 3 (0.4%) |
| Stroke/TIA | 54 (19.6%) | 33 (7.4%) | 0 (0%) |
| Number of drugs (on demand included); mean (±SD) | 9.2±4.1 | 5.6±4.1 | 61 (8.4%) |
| Discharge diagnosis CHF, N (%) | 116 (42.0%) | 30 (6.7%) | 0 (0%) |
| Dead within 1 month, N (%) | 29 (10.5%) | 27 (6.0%) | 0 (0%) |
| Dead within 3 months, N (%) | 60 (21.7%) | 53 (11.9%) | 0 (0%) |
BMI, body mass index; CAD, coronary artery disease; CHF, congestive heart failure; GFR, glomerular filtration rate; METTS, Medical Emergency Treatment and Triage System; NT-pro-BNP, N-terminal pro-brain natriuretic peptide; NYHA, New York Heart Association; TIA, Transient Ischemic Attack.