Table 1.

Demographic and clinical characteristics of subjects

Cohort	n	Age, yr	Race	Sex (M/F)	PVRI, Wood units	MPAP, mmHg
PAH	18	44 ± 10	White 17; Native American 1	7/11	20 ± 9	55 ± 7
IPF with PH	8	60 ± 5	White 7; African American 1	5/3	11 ± 5	45 ± 12
Normal controls	13	60 ± 11	White 12; African American 1	5/8

Values are means ± SE; n, no. of subjects. PAH, pulmonary arterial hypertension; IPF, idiopathic pulmonary fibrosis; PH, pulmonary hypertension; M, male; F, female; PVRI, pulmonary vascular resistance index; MPAP, mean pulmonary arterial pressure.