- The study population will consist of all patients diagnosed with hemophilia (D66.9 (hemophilia A) D67.9 (hemophilia B) in International Statistical Classification of Diseases and Related Health Problems (ICD-10) that have been registered in the Malmö Hemophilia Register since 1977 and that have had at least one registered prescription of BeneFIX or ReFacto/ReFacto AF in the MHR since market authorization of the respective product