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Economic Burden of High-Responding Inhibitors in Patients with Hemophilia A in Taiwan
Tsu-Chiang Tu,Shin-Nan Cheng,Jye-Daa Chen,Thau-Ming Cham,Mei-Ing Chung 연세대학교의과대학 2013 Yonsei medical journal Vol.54 No.2
Purpose: Hemophilia A (HA) is the most common X-linked inherited bleeding disorder. In some patients with HA, particularly those with severe HA, replacement therapy results in the production of high-responding clotting factor VIII inhibitors. The economic burden of this complication is the highest reported for a chronic disease. Our aim was to investigate the direct medical expenditure burden of high-responding inhibitors in patients with HA. Materials and Methods: A retrospective study was conducted using the National Health Insurance Research Database,utilizing data covering the period of 2004-2007. Results: In total, 638 males with HA¸ including 37 patients with high-responding inhibitors were evaluated. Over 99% of the annual median medical expenditure was attributable to the cost of clotting factor concentrates (CFCs) in patients with high-responding inhibitors. The annual median expenditure related to CFCs of the total medical care and outpatient care were US$170611 and US$141982, respectively, and were 4.6- and 4.3-fold higher in these patients during the study period, respectively. In patients with high-responding inhibitors, the median hospitalization expenditure and daily hospitalization cost with or without surgical procedures were 3.0- and 2.4-fold higher, respectively, and 4.3 and 5.6-fold higher, respectively. Conclusion: Our data reveal higher medical expenditures burden for patients with HA and high-responding inhibitors in Taiwan. Future research is encouraged to evaluate the impact of this burden on patient quality of life.