TABLE 2.

Demographic characteristics of patients.

Characteristic	Frequency	Percentage
Sex
Female	1,483	47.1
Male	1,665	52.9
Age category
0—4 + years	869	27.6
5–9+ years	915	29.1
10–14 + years	821	26.1
15–17 + years	258	8.2
≥18 years	285	9.1
SCD phenotype
SCD-SS	2,116	67.2
SCD-SC	1,023	32.5
Sβ+Thal	9	0.3