Parameters

Frequency of hemoglobin S phenotypes (%)

SSFA2 phenotype

SFA2 phenotype

Total

Male

22 (81.5%)

5 (83.3%)

27

Female

11 (18.5%)

1 (16.7%)

12

Sex ratio

2.00

5

2.25

5 to 10 years

18 (54.5%)

4 (66.7%)

22

11 to 15 years

15 (45.5%)

2 (33.3%)

17

Average age ± SD

9 ± 3 years

10 ± 2 years

9 ± 3 years

Minimum-Maximum age

5 years - 15 years

Schooled child

31 (93.9%)

6 (100.0%)

37

No schooling

2 (6.1%)

0 (0.0%)

2

Out of classroom (before/after HU)

19/2

3/1

22/3

Other family cases of SCD

17 (51.5%)

2 (33.3%)

19

No-immunization

27 (81.8%)

2 (33.3%)

29

Total

33 (84.6%)

6 (15.4%)

39