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Hospitalised COVID-19 patients of the Mount Sinai Health System: a retrospective observational study using the electronic medical records.


ABSTRACT: OBJECTIVE:To assess association of clinical features on COVID-19 patient outcomes. DESIGN:Retrospective observational study using electronic medical record data. SETTING:Five member hospitals from the Mount Sinai Health System in New York City (NYC). PARTICIPANTS:28?336 patients tested for SARS-CoV-2 from 24 February 2020 to 15 April 2020, including 6158 laboratory-confirmed COVID-19 cases. MAIN OUTCOMES AND MEASURES:Positive test rates and in-hospital mortality were assessed for different racial groups. Among positive cases admitted to the hospital (N=3273), we estimated HR for both discharge and death across various explanatory variables, including patient demographics, hospital site and unit, smoking status, vital signs, lab results and comorbidities. RESULTS:Hispanics (29%) and African Americans (25%) had disproportionately high positive case rates relative to their representation in the overall NYC population (p<0.05); however, no differences in mortality rates were observed in hospitalised patients based on race. Outcomes differed significantly between hospitals (Gray's T=248.9; p<0.05), reflecting differences in average baseline age and underlying comorbidities. Significant risk factors for mortality included age (HR 1.05, 95% CI 1.04 to 1.06; p=1.15e-32), oxygen saturation (HR 0.985, 95% CI 0.982 to 0.988; p=1.57e-17), care in intensive care unit areas (HR 1.58, 95% CI 1.29 to 1.92; p=7.81e-6) and elevated creatinine (HR 1.75, 95% CI 1.47 to 2.10; p=7.48e-10), white cell count (HR 1.02, 95% CI 1.01 to 1.04; p=8.4e-3) and body mass index (BMI) (HR 1.02, 95% CI 1.00 to 1.03; p=1.09e-2). Deceased patients were more likely to have elevated markers of inflammation. CONCLUSIONS:While race was associated with higher risk of infection, we did not find racial disparities in inpatient mortality suggesting that outcomes in a single tertiary care health system are comparable across races. In addition, we identified key clinical features associated with reduced mortality and discharge. These findings could help to identify which COVID-19 patients are at greatest risk of a severe infection response and predict survival.

SUBMITTER: Wang Z 

PROVIDER: S-EPMC7592304 | biostudies-literature | 2020 Oct

REPOSITORIES: biostudies-literature

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<h4>Objective</h4>To assess association of clinical features on COVID-19 patient outcomes.<h4>Design</h4>Retrospective observational study using electronic medical record data.<h4>Setting</h4>Five member hospitals from the Mount Sinai Health System in New York City (NYC).<h4>Participants</h4>28 336 patients tested for SARS-CoV-2 from 24 February 2020 to 15 April 2020, including 6158 laboratory-confirmed COVID-19 cases.<h4>Main outcomes and measures</h4>Positive test rates and in-hospital mortali  ...[more]

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