Primary Outcomes
Measure: Is there an increased prevalence of venous thromboembolism in a regional healthcare system in Sweden during the SARS-CoV-2 pandemic? Time: March to May in 2020
Measure: Is a SARS-CoV-2-infection an isolated risk factor for thromboembolism? Time: March to May in 2020
Secondary Outcomes
Measure: Are there geographic differences in the prevalence of venous thromboembolism within the healthcare system? Time: March to May in 2020
Measure: Is venous thromboembolism associated with increased mortality adjusted for relevant comorbidities? Time: March to May in 2020
Measure: How long is the time between symptom onset of the SARS-CoV-2-infection and any subsequent venous thromboembolism? Time: March to May in 2020
Measure: Is treatment with prophylactic antithrombotic or anticoagulant treatment associated with increased survival? Time: March to May in 2020