Methods
This study includes a secondary analysis of data collected as part of a quality improvement (QI) initiative to assess adherence barriers within clinical care. Collection and retrospective analysis of anonymized data were approved by the Institutional Review Board. Participants in the larger QI initiative included caregivers (of patients ages 0-18 years), children, and AYAs diagnosed with VTE who were followed for therapeutic anticoagulation in the Hematology clinic at Cincinnati Children’s Hospital Medical Center (May-November 2019).