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Patient and Hospital Factors Associated With Differences in Mortality Rates Among Black and White US Medicare Beneficiaries Hospitalized With COVID-19 Infection.
Asch, David A; Islam, Md Nazmul; Sheils, Natalie E; Chen, Yong; Doshi, Jalpa A; Buresh, John; Werner, Rachel M.
  • Asch DA; Division of General Internal Medicine, University of Pennsylvania, Philadelphia.
  • Islam MN; Leonard Davis Institute of Health Economics, University of Pennsylvania, Philadelphia.
  • Sheils NE; UnitedHealth Group, Minnetonka, Minnesota.
  • Chen Y; UnitedHealth Group, Minnetonka, Minnesota.
  • Doshi JA; Department of Biostatistics, Epidemiology, and Informatics, University of Pennsylvania, Philadelphia.
  • Buresh J; Division of General Internal Medicine, University of Pennsylvania, Philadelphia.
  • Werner RM; Leonard Davis Institute of Health Economics, University of Pennsylvania, Philadelphia.
JAMA Netw Open ; 4(6): e2112842, 2021 06 01.
Article in English | MEDLINE | ID: covidwho-1274639
ABSTRACT
Importance Black patients hospitalized with COVID-19 may have worse outcomes than White patients because of excess individual risk or because Black patients are disproportionately cared for in hospitals with worse outcomes for all.

Objectives:

To examine differences in COVID-19 hospital mortality rates between Black and White patients and to assess whether the mortality rates reflect differences in patient characteristics by race or by the hospitals to which Black and White patients are admitted. Design, Setting, and

Participants:

This cohort study assessed Medicare beneficiaries admitted with a diagnosis of COVID-19 to 1188 US hospitals from January 1, 2020, through September 21, 2020. Exposure Hospital admission for a diagnosis of COVID-19. Main Outcomes and

Measures:

The primary composite outcome was inpatient death or discharge to hospice within 30 days of admission. We estimated the association of patient-level characteristics (including age, sex, zip code-level income, comorbidities, admission from a nursing facility, and days since January 1, 2020) with differences in mortality or discharge to hospice among Black and White patients. To examine the association with the hospital itself, we adjusted for the specific hospitals to which patients were admitted. We used simulation modeling to estimate the mortality among Black patients had they instead been admitted to the hospitals where White patients were admitted.

Results:

Of the 44 217 Medicare beneficiaries included in the study, 24 281 (55%) were women; mean (SD) age was 76.3 (10.5) years; 33 459 participants (76%) were White, and 10 758 (24%) were Black. Overall, 2634 (8%) White patients and 1100 (10%) Black patients died as inpatients, and 1670 (5%) White patients and 350 (3%) Black patients were discharged to hospice within 30 days of hospitalization, for a total mortality-equivalent rate of 12.86% for White patients and 13.48% for Black patients. Black patients had similar odds of dying or being discharged to hospice (odds ratio [OR], 1.06; 95% CI, 0.99-1.12) in an unadjusted comparison with White patients. After adjustment for clinical and sociodemographic patient characteristics, Black patients were more likely to die or be discharged to hospice (OR, 1.11; 95% CI, 1.03-1.19). This difference became indistinguishable when adjustment was made for the hospitals where care was delivered (odds ratio, 1.02; 95% CI, 0.94-1.10). In simulations, if Black patients in this sample were instead admitted to the same hospitals as White patients in the same distribution, their rate of mortality or discharge to hospice would decline from the observed rate of 13.48% to the simulated rate of 12.23% (95% CI for difference, 1.20%-1.30%). Conclusions and Relevance This cohort study found that Black patients hospitalized with COVID-19 had higher rates of hospital mortality or discharge to hospice than White patients after adjustment for the personal characteristics of those patients. However, those differences were explained by differences in the hospitals to which Black and White patients were admitted.
Subject(s)

Full text: Available Collection: International databases Database: MEDLINE Main subject: Black or African American / Hospital Mortality / White People / COVID-19 Type of study: Cohort study / Observational study / Prognostic study Limits: Aged / Female / Humans / Male Country/Region as subject: North America Language: English Journal: JAMA Netw Open Year: 2021 Document Type: Article

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Full text: Available Collection: International databases Database: MEDLINE Main subject: Black or African American / Hospital Mortality / White People / COVID-19 Type of study: Cohort study / Observational study / Prognostic study Limits: Aged / Female / Humans / Male Country/Region as subject: North America Language: English Journal: JAMA Netw Open Year: 2021 Document Type: Article