Effect size of repeatedly assessed parameters during vasodilator treatment
| Change during treatment | p-value | Effect size | |
| MLHF score | -10 (-5– -15) | <0.001 | -0.48 |
| MLHF physical subscore | -5 (-3– -7) | <0.001 | -0.54 |
| MLHF emotional subscore | -2 (-1– -4) | 0.011 | -0.38 |
| NYHA/WHO functional class | -0.4 (-0.2– -0.7) | <0.001 | -0.57 |
| 6-MWD m | 50 (16–83) | 0.001 | 0.32 |
| Borg scale | -0.6 (0.3– -1.6) | 0.10 | 0.27 |
| Right ventricular systolic pressure mmHg | -6 (2– -14) | 0.13 | 0.25 |
Data are presented as mean (95% confidence interval), unless otherwise stated. MLHF: Minnesota Living with Heart Failure; NYHA/WHO: New York Health Association/World Health Organization; 6-MWD: 6-min walking distance. 1 mmHg = 0.133 kPa.