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. 2022 Aug 30;24(8):e40096. doi: 10.2196/40096

Table 3.

Characteristics of youth participants.

Characteristic Youth value (N=57)
Age (years), mean (SD) 14.8 (2.0)
Sex, n (%)

Female 34 (60)

Male 23 (40)
Gender identitya, n (%)

Female 34 (60)

Male 23 (40)
Race, n (%)

American Indian 1 (2)

Black 53 (93)

Latino/Hispanic 1 (2)

Asian 2 (4)
Ethnicityb, n (%)

Hispanic 5 (9)

Non-Hispanic 46 (84)

Unknown 4 (7)
SCDc genotyped, n (%)

Hemoglobin SS 35 (66)

Hemoglobin SC 12 (23)

Hemoglobin S beta thal plus 3 (6)

Hemoglobin S beta thal zero 2 (4)

Unknown 1 (2)
SCD Pain Burden Interview score, mean (SD) 10.9 (5.8)
Currently taking hydroxyurea, n (%) 40 (70)
Receiving regular blood transfusions, n (%) 8 (14)

aResponse options were available for additional gender identities including transgender.

bMissing for ethnicity (n=2).

cSCD: sickle cell disease.

dMissing for SCD genotype (n=4).