Baseline VWF:Ag Level and Body Mass Index Are Inverse Influencing Factors of Annualized Total Bleeding Rate and Annualized Joint Bleeding Rate Respectively in Severe-Type Adult Patients with Hemophilia a (PwHA) with Episodic Treatment with rFVIII

Introduction: Bleeding phenotypes of severe-type patients with hemophilia A (PwHA) vary greatly, which influence factor consumption and medical cost. Factors affecting bleeding patterns of PwHA include various procoagulant and anticoagulant factors, joint condition and physical activity, etc. We aimed to investigate clinical factors influencing by-nature bleeding frequency of severe-type PwHA during episodic treatment.