Table 1.

Sociodemographic characteristics of study participants

	N = 659
Participants	N (%)
Country ofresidence
USA	255 (38.7)
Ghana	318 (48.3)
Italy	86 (13.0)
Age group(years)	N (%)
Pediatric (< 18 years)	240 (36.4)
Mean age (range, sd)	9.6 (1–17, 4.5)
Adult (≥18 years old)	419 (63.6)
Mean age (range, sd)	29.9 (18–73.9, 11.2)
Gender	N (%)
Male	303 (46)
Female	356 (54)
Sickle cell genotype	N (%)
SS	474 (75)
SC	168 (19.2)
S Beta Thal +	29 (3.3)
S Beta Thal Zero	22 (2.5)
History of leg ulcer	N (%)
Yes	68 (10.3)
No	591 (89.7)
Hydroxyurea use	N(%)
Leg ulcer = yes	3 (4.3)
Leg ulcer = no	65 (95.7)