Outpatient Venous Thromboembolism (VTE) Study
The purposes of this observational study were to describe the frequency of VTEs occurring in the outpatient setting, characterize the prevalence of previously identified risk factors for VTE, and identify previous use of VTE prophylaxis. Results from this study found that more VTEs were diagnosed in the 3 months following hospitalization than during hospitalization.
http://archinte.ama-assn.org/cgi/content/abstract/167/14/1471