Table. 4—

4 Prognostic factors for mortality

Dichotomy/medianHazard ratio95% Confidence limits
Subjects n169
WHO functional classIV3.21.1–9.7
Cardiac index L·min·m−2≤2.251.50.6–3.6
mPAP mmHg≤541.40.6–3.6
mRAP mmHg>8.51.90.7–4.8
6MWT m≤3584.01.3–12.2
  • WHO: World Health Organization; mPAP: mean pulmonary arterial pressure; mRAP: mean right atrial pressure; 6MWT: 6-min walk test.