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Table 1 Socio-demographic status among the study participants

From: Prenatal arsenic and mercury levels among women practicing geophagy in areas with artisanal and small-scale gold mining activities, Northwestern Tanzania

Variables

Geophagy

Non-Geophagy

Sociodemographic-Economic Status

mean

(SD)

mean

SD

BMI of the mother (kg/m2)

24.33

3.538

24.42

3.240

The average age of pregnant women (yrs.)

26.40

6.451

24.96

6.169

The age group of mothers

n

%

n

%

    14–18

52

13.6

134

19.9

    20–24

115

30.0

223

33.2

    25–29

99

25.8

156

23.2

    30–34

59

15.4

98

14.6

    35–39

46

12.0

45

6.7

    40+

12

3.1

16

2.4

Maternal education

    

    No Education/Illiterate

55

14.4

155

23.1

    Primary school and above

328

85.6

517

76.9

Partners’ education

    

    No Education/Illiterate

36

9.4

96

14.3

    Primary school and above

347

90.6

576

85.7

Mother has had vocational training.

    

    Yes

39

10.2

90

13.4

    No

344

89.8

582

86.6

Years of residence in a respective district

    

    < 2

7

1.8

21

3.1

    2–5

70

18.3

131

19.5

    5+

306

79.9

520

77.4

Marital status

    

    Single

7

1.8

29

4.3

    Married/cohabiting

370

96.6

632

94.0

    Divorces/separated

6

1.6

11

1.6

Mother’s occupation

    

    Farm/animal keeping

320

83.6

584

86.9

    Mining

33

8.6

39

5.8

    Business

25

6.5

36

5.4

    Public servant

5

1.3

13

1.9

Partner’s occupation

    

    Farm/animal keeping

230

60.1

433

64.4

    Mining

109

28.5

134

19.9

    Business

37

9.7

85

12.6

    Public servant

7

1.8

20

3.0

Social Economic Wealth Quintile (SEWQ)

    

    High

85

22.2

115

17.1

    Moderate

221

57.7

311

46.3

    Low

77

20.1

246

36.6