INS and pulmonary arterial hypertension: Using data from the National Health and Nutrition Examination Survey (NHANES), female participants with a diagnosis of PAH, irrespective of cause, were nearly twice as likely to be insulin resistant (determined by the triglyceride/high-density lipoprotein cholesterol (TG/HDL-C) ratio) compared to BMI-matched controls and had worse six month event-free survival [7].