Multivariable Cox regression for ADHF rehospitalisation within 1 year (N=200 patients with 144 events)
| Variable | HR (95% CI) | Wald χ2 | P value |
| IVC diameter | 2.24 (1.63 to 3.08) | 24.76 | <0.001 |
| NYHA functional class III/IV versus I/II | 2.65 (1.76 to 3.99) | 21.95 | <0.001 |
| Delta weight | 0.98 (0.96 to 0.99) | 8.79 | <0.01 |
| HR | 1.01 (1.00 to 1.02) | 6.24 | 0.01 |
| Sodium | 0.95 (0.91 to 1.00) | 4.70 | 0.03 |
| Haemoglobin | 0.92 (0.85 to 0.99) | 4.73 | 0.03 |
| Tricuspid regurgitation | 1.65 (1.08 to 2.52) | 5.27 | 0.02 |
Multivariable Cox regression analysis based on independent predictor variables from forwards and backwards procedures.
ADHF, acute decompensated heart failure; HR, heart rate; IVC, inferior vena cava; NYHA, New York Heart Assocation.