Table 1. Distribution of the subjects participating to the study.

			SUB-GROUPS OF SCD PATIENTS
	Healthy control	SCD PATIENTS	HUa	CTb	CT+HU	No DMTc
Aged	51(24–78)	16(3–57)	15(3–57)	16(8–40)	12(6–19)	18(6–35)
F/M	19/11	41/31	33/16	1/8	2/5	5/2
n T0	30	72	49	9	7	7
n T1	28	68	45	9	7	7
n T3	30	69	46	9	7	7
n T6	27	56	39	8	7	2

^a Hydroxyurea (HU)

^b Chronic transfusion (CT)

^c No Disease modifying therapy (DMT)

^d Median age in years (range)