Ambulatory patients with COVID-19 have a low risk of developing venous thromboembolism (VTE); whereas hospitalization is associated with a higher risk, necessitating thromboprophylaxis. 1,2 The use of extended thromboprophylaxis following COVID-19 hospitalization is controversial, and risk stratification tools are needed to better predict who may benefit. We report the 90-day incidence of VTE following hospitalization, stratified by COVID-19 surge period and vaccination status among adults tested for SARS-CoV-2.

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