Table 1.
Baseline characteristics
| Demographics | All Patients (N = 129) |
|---|---|
| Diagnosis age, yr | 51 ± 14 |
| Female sex | 112 (87) |
| White race | 107 (83) |
| NYHA functional class of patients | |
| I | 13 (11) |
| II | 55 (49) |
| III | 41 (36) |
| IV | 4 (4) |
| PAH etiology | |
| Idiopathic | 62 (48) |
| Connective tissue diseases | 57 (44) |
| Other | 10 (8) |
| Right atrial pressure, mm Hg | 9 ± 5 |
| Mean pulmonary artery pressure, mm Hg | 47 ± 14 |
| Pulmonary capillary wedge pressure, mm Hg | 11 ± 4 |
| Cardiac output, L/min | 4.7 ± 1.5 |
| Cardiac index, L/min/m2 | 2.6 ± 0.7 |
| Pulmonary vascular resistance, Wood units | 9 ± 5 |
Definition of abbreviations: NYHA = New York Heart Association; PAH = pulmonary arterial hypertension.
Data presented as n (%) or mean ± SD.