Table 1—

Baseline demographics of study subjects

Age yrs56±15
Male %54
WHO functional class II/III/IV %10/59/31
6-min walking test m258±132
Right atrial pressure mmHg10±6
Mean pulmonary arterial pressure mmHg49±12
Cardiac index L·min−1·m−22.0±0.6
Total pulmonary resistance dynes·s−1·cm−51111±472
  • Data are presented as mean±sd, unless otherwise stated. WHO: World Health Organization.