Overall population | Study population | |
Subjects | 1591 | 1017 |
Female/male | 924 (58)/667 (42) | 598 (59)/419 (41) |
Age years | 60±17 | 57±17 |
BMI kg·m−2 | 27.8±7.0 | 27.7±6.4 |
BMI >30 kg·m−2 | 474 (30) | 291 (29) |
PAH diagnosis | ||
Idiopathic | 1228 (77) | 762 (75) |
Heritable | 109 (7) | 94 (9) |
Drug-induced | 254 (16) | 161 (16) |
Acute vasodilator responder | 139 (8.7) | 97 (9.5) |
WHO/NYHA functional class | ||
I–II | 441 (28) | 261 (26) |
III | 925 (58) | 624 (61) |
IV | 225 (14) | 132 (13) |
6-min walking distance m | 307±142 | 311±145 |
Haemodynamics | ||
RAP mmHg | 8.8±5.2 | 8.6±5.0 |
mPAP mmHg | 48±13 | 50±13 |
PAWP mmHg | 10±4 | 9±4 |
Cardiac output L·min−1 | 4.4±1.5 | 4.4±1.4 |
Cardiac index L·min−1·m−2 | 2.4±0.8 | 2.4±0.7 |
PVR Wood units | 9.9±5.6 | 10.5±5.9 |
Mean blood pressure mmHg | 96±18 | 95±17 |
Heart rate beats·min-1 | 80±16 | 80±15 |
SvO2 % | 63±10 | 63±9# |
Data are presented as n, n (%) or mean±sd. BMI: body mass index; WHO: World Health Organization; NYHA: New York Heart Association; RAP: right atrial pressure; mPAP: mean pulmonary artery pressure; PAWP: pulmonary artery wedge pressure; PVR: pulmonary vascular resistance; SvO2: mixed venous oxygen saturation. #: n=606.