Kaplan‐Meier Survival Rates up to 12 Months of Follow‐up. Abbreviations: CI, confidence interval; HR, hazard ratio; KS, Khorana score; VTE, venous thromboembolism. Notes: 1. A VTE event is defined as (1) a primary inpatient VTE diagnosis or (2) a secondary inpatient VTE diagnosis followed by another inpatient or outpatient diagnosis or an AC dispensing within 30 days after discharge date or (3) a primary or secondary outpatient VTE diagnosis followed by an AC dispensing or administration within 30 days. 2. Hazard ratios were calculated using Cox proportional hazards models adjusting for sex, age, index year, region, insurance type, Charlson comorbidity index score, baseline healthcare resource use and costs, and Elixhauser comorbidities with a proportion ≥ 5%