Predictors of thromboembolic events in COVID-19 ambulatory patients

INTRODUCTION: Unlikely COVID-19 hospitalized patients, there are not clear data about the incidence and the predictors of arterial and venous thromboembolic events in COVID-19 outpatients patients. OBJECTIVES: To determine the incidence of TE in COVID-19 ambulatory setting. PATIENTS AND METHODS: We conducted an observational study in our study including COVID-19 ambulatory patients and we analysed the predictors of TE events at 30 days. RESULTS: We included 2089 patients with a mean age of 43 ± 16 years. The incidence of primary outcomes was 1.6% and the incidence of venous and arterial TE complications was 0.9%. The predictors of arterial and venous TE complications were hormonal contraception (OR = 23), moderate clinical presentation (OR = 3.5), recent surgery or miscarriage during the last month before COVID-19 infection (OR = 9.2) and COVID-19 signs on CT scan (OR = 4.9). While physical activity proved to be a protective factor. CONCLUSIONS: The incidence of TE events is low in COVID-19 patients. Thromboprophylaxis should be prescribed in selected people.