Table 1

Record of bleeding episodes before and after starting the patient on long-acting factor IX Fc fusion protein

Bleeding episodeAge before starting on long-acting factor IX Fc fusion proteinOn-demand treatment with long-acting factor IX Fc fusion proteinProphylactic treatment with long-acting factor IX Fc fusion protein
1.7 monthsNoNo
2.8 monthsNoNo
3.9 monthsNoNo
4.10 monthsNoNo
5.12 monthsNoNo
6.15 monthsNoNo
7.16 monthsNoNo
8.19 monthsYes
9.22 monthsYesNo
10.24 monthsYesNo
11.27 monthsYesYes (started on prophylaxis)