COVID-19 -Hospitalizations, Mortality, and Racial/Ethnic Disparities in the COVID-19 Pandemic
Abstract
Importance: The COVID-19 pandemic has disproportionately affected racial/ethnic minority populations. However, racial/ethnic disparities in hospitalizations and hospital outcomes during the COVID-19 pandemic remain poorly understood, especially among older populations.Objective: To assess racial/ethnic differences in hospitalizations and in-hospital mortality during the COVID-19 pandemic in the Medicare population.
Design, Setting, and Participants: Using 100% Medicare hospital inpatient data from January 2019 through December 2020, we examined changes in COVID-19 and non-COVID-19 hospitalizations and outcomes, focusing on in-hospital mortality, relative to the pre-pandemic baseline. Using a difference-in-differences model adjusted for age, sex, risk score, and month and hospital fixed effects, we measured differential changes in outcomes between racial/ethnic minority patients collectively and White patients attributable to the pandemic. We separately compared Black vs. White patients and Hispanic vs. White patients in subgroup analyses. Sensitivity analyses and falsification analyses tested the robustness of our results.
Exposures: Race/ethnicity of the patient as reported in Medicare claims from the Social Security Administration.
Main Outcomes and Measures: The main outcomes included hospitalizations and in-hospital mortality. Secondary outcomes included discharges to hospice and discharges to post-acute care.