Univariable Cox regression for ADHF rehospitalisation within 1 year (N=200 patients with 144 events)
| Variable | HR (95% CI) | Wald χ2 | P value |
| IVC diameter | 2.44 (1.85 to 3.23) | 38.91 | <0.001 |
| BSA | 1.50 (0.89 to 2.51) | 2.36 | 0.13 |
| BSA corrected IVC diameter | 5.58 (3.11 to 10.01) | 33.21 | <0.001 |
| Ideal BSA (BMI 25 kg/m2) corrected IVC diameter | 4.50 (2.72 to 7.44) | 34.15 | <0.001 |
| Height corrected IVC diameter | 4.66 (2.84 to 7.65) | 37.25 | <0.001 |
| Days hospitalised | 1.05 (1.01 to 1.08) | 7.9 | <0.01 |
| Age | 0.99 (0.98 to 1.00) | 4.03 | 0.05 |
| Men | 1.23 (0.86 to 1.76) | 1.29 | 0.26 |
| NYHA functional class III/IV versus I/II | 3.39 (2.29 to 5.01) | 37.34 | <0.001 |
| Afib/aflutter | 0.99 (0.71 to 1.39) | 0.01 | 0.95 |
| Ischaemic heart disease | 0.74 (0.52 to 1.06) | 2.72 | 0.10 |
| HLD | 0.88 (0.60 to 1.28) | 0.47 | 0.50 |
| HTN | 1.09 (0.78 to 1.52) | 0.27 | 0.60 |
| PAD | 0.89 (0.37 to 2.18) | 0.06 | 0.80 |
| CVA | 1.24 (0.72 to 2.16) | 0.59 | 0.44 |
| Diabetes | 0.98 (0.70 to 1.36) | 0.02 | 0.89 |
| CKD | 1.05 (0.72 to 1.51) | 0.05 | 0.82 |
| COPD | 1.21 (0.74 to 1.96) | 0.58 | 0.45 |
| Delta weight | 0.99 (0.98 to 1.01) | 1.69 | 0.19 |
| Systolic BP | 1.00 (0.99 to 1.00) | 0.70 | 0.40 |
| Diastolic BP | 1.00 (0.99 to 1.01) | 0.09 | 0.77 |
| HR | 1.01 (1.00 to 1.02) | 5.94 | 0.02 |
| Creatinine | 1.20 (1.00 to 1.45) | 3.83 | 0.05 |
| eGFR | 1.00 (0.99 to 1.01) | 0.01 | 0.91 |
| Sodium | 0.95 (0.90 to 0.99) | 6.04 | 0.01 |
| Potassium | 0.96 (0.70 to 1.32) | 0.07 | 0.80 |
| Haemoglobin | 0.90 (0.84 to 0.96) | 8.88 | <0.01 |
| Log NT-proBNP | 1.63 (1.15 to 2.32) | 7.35 | <0.01 |
| Elevated JVP | 0.93 (0.66 to 1.30) | 0.19 | 0.66 |
| Crackles | 1.03 (0.75 to 1.43) | 0.04 | 0.85 |
| Peripheral oedema | 0.96 (0.64 to 1.45) | 0.04 | 0.85 |
| LVEF | 0.99 (0.98 to 1.00) | 4.93 | 0.03 |
| PA pressure | 1.02 (1.01 to 1.03) | 9.20 | <0.01 |
| Tricuspid regurgitation | 1.96 (1.29 to 2.98) | 9.84 | <0.01 |
| Mitral regurgitation | 1.49 (1.03 to 2.15) | 4.57 | 0.03 |
| RV dysfunction | 1.47 (1.05 to 2.04) | 5.09 | 0.02 |
ADHF, acute decompensated heart failure; BMI, body mass index; BP, blood pressure; BSA, body surface area; CKD, chronic kidney disease; COPD, chronic obstructive pulmonary disease; CVA, cerebrovascular accident; eGFR, estimated glomerular filtration rate; HLD, hyperlipidaemia; HR, heart rate; HTN, hypertension; IVC, inferior vena cava; JVP, jugular venous pulse; LVEF, left ventricular ejection fraction; NT-proBNP, N-terminal B-type natriuretic peptide; NYHA, New York Heart Association; PA, pulmonary arterial; PAD, peripheral arterial disease; RV, right ventricular.