Table 1.

Demographic and disease characteristics

	All patients (N = 563)
Age, mean [SD]	59 [17]
Female, n (%)	394 (70)
Age at diagnosis, mean [SD]	53 [19]
Currently on PH medication, n (%)	498 (88)
Comorbid conditions, n (%)	318 (56)
Congenital heart disease	91 (16)
Connective tissue disease	81 (14)
Portal hypertension	13 (2)
HIV infection	0 (0)
Sickle cell anaemia	0 (0)
Lung disease (e.g. COPD, pulmonary fibrosis)	56 (10)

COPD chronic obstructive pulmonary disease, HIV human immunodeficiency virus, SD standard deviation