The incidence of venous thromboembolism in children continues to rise, with the most recent analysis from the Pediatric Hospital Information Systems database in the United States reporting a 200-fold increase in pediatric hospitalization-related venous thromboembolism diagnoses over the past two decades. In the past decade, several pediatric venous thromboembolism risk prediction models have been published, in some cases derived from multi-institutional data and multicenter randomized …