TABLE 3.

Blood count measurements at Personal best HbF, study initiation month 0 (M0), and at completion (M6) by the study group

Parameters	At Personal best HbF			Study month 0			Study month 6a
	Intervention n = 18	Control n = 10	P value	Intervention n = 18	Control n = 10	P value	Intervention n = 16	Control n = 8	P valueb
HU dose	24.9 ± 4.8	23.8 ± 4.6	0.52	25.9 ± 3.9	21.7 ± 4.4	0.03	24.3 ± 7.6	22.5 ± 3.5	0.11
Hb	8.9 ± 1.6	9.1 ± 0.7	0.70	8.6 ± 1.3	9.3 ± 1.3	0.25	8.9 ± 1.2	9.5 ± 1.8	0.44
MCV	96.9 ± 11.7	101.1 ± 10.2	0.35	94.5 ± 13.0	86.8 ± 30.8	0.94	98.0 ± 11.3	89.0 ± 35.7	0.76
ARC	258 ± 181	204 ± 69	0.76	321 ± 183	307 ± 141	0.94	253 ± 133	248 ± 143	0.71
WBC	10.1 ± 3.8	9.1 ± 3.0	0.64	9.5 ± 2.8	10.5 ± 3.8	0.54	9.0 ± 2.7	7.9 ± 2.6	0.26
ANC	4.7 ± 2.0	4.7 ± 3.0	0.60	4.5 ± 1.9	4.0 ± 1.9	0.59	3.2 ± 2.0	3.6 ± 1.5	0.71
Platelets	474 ± 338	439 ± 175	0.54	485 ± 262	350 ± 159	0.36	453 ± 248	438 ± 179	0.92

PB, Personal best HbF.

^aIntervention group: one withdrawal and one with multiple transfusions; Control group: two withdrawals.

^bWilcoxon rank sum. Bold P value means statistical significance.