Decreased Risk of COVID-19-Related Hospitalization Associated with Omicron Variant of SARS-CoV-2

Open Forum Infectious Diseases(2022)

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摘要
Abstract Among 134,223 patients with COVID-19, we assessed how risk of hospitalization changed at different intervals in the pandemic, controlling for prior COVID-19 immunity. In multivariable analysis, outpatients with COVID-19 during the Omicron predominant time period had significantly lower odds of hospitalization compared to pre-Delta (aOR 0.26, 95% CI [0.22-0.32]).
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