Table 2.

Demographic Characteristics of Patients with Pulmonary Arterial Hypertension and Matched Healthy Donor Control Subjects Analyzed for Autoimmunity Autoantibody Biomarkers

	Healthy	PAH
Number of subjects	946	473
Age at sampling, yr	53.01 ± 13.4	53.05 ± 15.6
Male:female	282:664	141:332
BMI,* kg/m2	—	28.84 ± 7.0

Definition of abbreviations: BMI = body mass index; PAH = pulmonary arterial hypertension.

Data are presented as counts, mean ± SD, or raw counts.

^*Data for BMI were missing or not available in 24 subjects.