Age(years) Gender Time since initial therapy (years) Current therapy Prior use of alternative
3 F 0.5 Transfusion/Oral chelation No
5 M 2.3 Transfusion/Oral chelation No
10 M 2.8 Transfusion/Oral chelation Hydroxyurea
12 M 1.2 Transfusion/Oral chelation Hydroxyurea
12 F 5 Transfusion/Oral chelation No
13 M 7.2 Transfusion/Oral chelation Hydroxyurea/phlebotomy
14 M 13.4 Pheresis Hydroxyurea/phlebotomy
16 M 10.2 Pheresis Hydroxyurea/phlebotomy
16 F 2.4 Pheresis/Oral chelation Hydroxyurea/phlebotomy
8 M 3.7 Hydroxyurea Transfusion/chelation/phlebotomy
12 M 6.6 Hydroxyurea Transfusion/chelation/phlebotomy
13 M 12.7 Hydroxyurea Transfusion/chelation/phlebotomy
14 F 7.9 Hydroxyurea No
17 M 8.4 Hydroxyurea Transfusion/chelation/phlebotomy
Table 2: Demographic and treatment characteristics