Table 1. Characteristics of the study... | American Society of Hematology

Table 1.

Characteristics of the study population

Blood cell parameters	Subjects^*
Blood cell parameters	African controls (n = 11)	Non-VOC group (n = 15)	VOC group (n = 17)	HU group (n = 9)
Leukocytes^†	4.40 ± 0.29	12.50 ± 0.55^1-155	13.47 ± 1.10^1-155	10.12 ± 0.67^1-155,^1-154
PMNs^†	2.15 ± 0.24	6.13 ± 0.39^1-155	6.08 ± 0.51^1-155	5.05 ± 0.54^1-155
Monocytes^†	0.30 ± 0.01	1.07 ± 0.02^1-155	0.92 ± 0.01^1-155	0.88 ± 0.01^1-155
Platelets^†	266 ± 18	440 ± 29^1-155	444 ± 31^1-155	386 ± 29^1-155
Hb^‡	124 ± 3	80 ± 2^1-155	75 ± 2^1-155	82 ± 4^1-155
HbF^1-153	—	11.2 ± 1.4	8.3 ± 1.1^1-159	12.4 ± 1.9

Blood cell parameters	Subjects^*
Blood cell parameters	African controls (n = 11)	Non-VOC group (n = 15)	VOC group (n = 17)	HU group (n = 9)
Leukocytes^†	4.40 ± 0.29	12.50 ± 0.55^1-155	13.47 ± 1.10^1-155	10.12 ± 0.67^1-155,^1-154
PMNs^†	2.15 ± 0.24	6.13 ± 0.39^1-155	6.08 ± 0.51^1-155	5.05 ± 0.54^1-155
Monocytes^†	0.30 ± 0.01	1.07 ± 0.02^1-155	0.92 ± 0.01^1-155	0.88 ± 0.01^1-155
Platelets^†	266 ± 18	440 ± 29^1-155	444 ± 31^1-155	386 ± 29^1-155
Hb^‡	124 ± 3	80 ± 2^1-155	75 ± 2^1-155	82 ± 4^1-155
HbF^1-153	—	11.2 ± 1.4	8.3 ± 1.1^1-159	12.4 ± 1.9

Subjects described in “Patients, materials, and methods.”

Means ± SEM blood cell counts, × 10⁹/L.

Means ± SEM of Hb values, g/L.

Means ± SEM of HbF, %.

Significantly different from controls (P< .05).

Significantly different from the other patient groups (P < .05).

Significantly different from HU-treated patients (P < .05).