Objective: To assess the impact of thrombotic risk factors and compare the performance of existing predictive models (Khorana, Throly, Model IX) in Diffuse Large B-cell Lymphoma (DLBCL) Primary Endpoints: Measure thrombotic risk factors in existing models Determine occurrence, type, and timing of venous thrombotic events Secondary Endpoints: Assess performance of models in patients without thrombotic events at diagnosis Evaluate dynamic risk factors during DLBCL treatment Identify additional risk factors not included in published models Analyze overall survival and VTE-free survival Methodology: Real-world cohort study of DLBCL patients Collection of static and dynamic risk factors Correlation analysis of risk factors with thrombotic events Development and validation of DLBCL-specific predictive model

Conclusion: This study aims to compare existing predictive models and develop a DLBCL-specific model to aid in identifying high-risk patients and inform thromboprophylaxis decisions. Results will contribute to improved understanding and management of thrombotic risk in DLBCL.