Table 1. Baseline characteristics of adult cohort.

Age, years	45 (± 0,76)
Female sex	411 (71%)
Etiology
Idiopathic	262 (45.25%)
Familial	31 (5.35%)
Pulmonary Venooclusive Disease	54 (9.33%)
Connective Tissue Disease	91 (15.72%)
Congenital Heart Disease	88 (15.2%)
Drugs	22 (3.8%)
Portopulmonary Hypertension	11 (1.9%)
Hereditary Hemorrhagic Telangiectasia	7 (1.21%)
Human Immunodeficiency Virus	13 (2.25%)
Race
White	510 (88.1%)
Hispanic	37 (6.4%)
Romani	23 (4%)
Black	1 (0.2%)
North African	6 (1%)
Asian	1 (0.2%)
Hindu	1 (0.2%)

Data are median (range), mean (SD), or n (%).