Dichotomy/median | Hazard ratio | 95% Confidence limits | |
Subjects n | 169 | ||
WHO functional class | IV | 3.2 | 1.1–9.7 |
Cardiac index L·min·m−2 | ≤2.25 | 1.5 | 0.6–3.6 |
mPAP mmHg | ≤54 | 1.4 | 0.6–3.6 |
mRAP mmHg | >8.5 | 1.9 | 0.7–4.8 |
6MWT m | ≤358 | 4.0 | 1.3–12.2 |
WHO: World Health Organization; mPAP: mean pulmonary arterial pressure; mRAP: mean right atrial pressure; 6MWT: 6-min walk test.