Table 2. The characteristics of patients with pulmonary arterial hypertension associated with SSc.

BMI: body mass index: WHO FC: World Health Organization-functional class, SSc: systemic sclerosis, ANA: antinuclear antibody, PFT: pulmonary function test, DLCO: diffusing capacity of the lungs for carbon monoxide, FVC: forced vital capacity, Pro-BNP: pro-b type natriuretic peptide, NC: not checked