Table 1 Baseline description of study participants

Demographic Information

Age, years

 15–19

7

7.9

 20–29

52

58.4

 30–40

24

27.0

 40–45

6

6.7

Community Site

 Agbogugu

30

33.7

 Awgu

30

33.7

 Onoli

29

32.6

Marital Status

 Married

85

95.5

 Single

4

4.5

Highest Level of Education

 Primary school

6

6.8

 Junior secondary school

18

20.2

 Senior secondary school

56

62.9

 Post-secondary

9

10.1

Type of Employment

 Applicant

8

9.0

 Civil Servant

4

4.5

 Farmer

24

27.0

 Trader

40

44.9

 Other

13

14.6

Number of Children

 None, first pregnancy

14

15.7

 1

20

22.5

 2

26

29.2

 3

12

13.5

 4

12

13.5

 5

3

3.4

 6

2

2.2

Genotype

 AA

67

75.3

 AS

21

23.6

 SS

1

1.1