Racial Disparities and Other Socioeconomic Predictors of Mortality in Acute Pulmonary Embolism Treatment from the National Inpatient Sample.

PURPOSE: To explore the significance of socioeconomic factors such as race and ethnicity as predictors of mortality in sub-massive and massive acute pulmonary embolism (PE).

MATERIALS AND METHODS: Hospitalizations aged > 18 years with acute, non-septic PE from 2016 to 2019 were identified in the National Inpatient Sample and divided into IR (CDT and thrombectomy) and non-IR (tPA) treatments. Statistical analyses calculated significant odds ratios via 95% confidence intervals. The primary outcome of interest was mortality rate. Comorbidities affecting mortality were examined secondarily.

RESULTS: Non-Hispanic (NH) Black, Hispanic, and Asian/Pacific Islander patients were significantly less likely to undergo an IR procedure for acute, non-septic PE compared to White patients (NH Black 0.83 [0.76 - 0.90], p<0.05; Hispanic 0.78 [0.68 - 0.89], p=0.06; Asian/Pacific Islander 0.71 [0.51 - 0.98], p=0.72; OR [95% CI]); however, these differences were eliminated when propensity score matching for age, biological sex, and primary insurance-type or primary insurance-type alone. NH Black patients were significantly more likely than White patients to die regardless of undergoing non-IR or an IR treatment. Overall risk of death was 41% higher for NH Black patients compared to White patients (RR [95% CI] 1.41 [1.24 - 1.60], p<0.001).

CONCLUSION: NH Black patients have a higher risk of mortality from acute, non-septic PE than White patients. Independent of race, undergoing IR management for acute, non-septic pulmonary embolisms was associated with a lower mortality rate. Matching for primary insurance-type eliminates difference in mortality between races suggest socioeconomic status (SES) may determine outcomes in acute PE.