Odds ratios for inpatient mortality in race/ethnic groups versus non-Hispanic white patients. Logistic regression for all-cause inpatient mortality was performed in patients with pulmonary arterial hypertension (adjusted for age, sex, and Elixhauser comorbidity index). Non-Hispanic white patients served as the reference group and were compared with non-Hispanic African American, Hispanic, non-Hispanic Asian, and Native American patients. CI = confidence interval; OR = odds ratio.