Table 2 The association between study participants and red blood cell folate levels

Age

20 – 39

22

24

8

15

40 – 49

18

20

10

18

50 - 59

25

28

19

36

60 - 69

16

18

6

11

70+

9

10

10

19

0.288

Residence†

Rural

43

48

35

66.0

Urban

46

52

18

34.0

0.040

Body Mass Index

Underweight

3

03

2

4

Normal

39

43

26

49

Overweight

28

31

15

28

Obese

20

22

10

19

0.913

Contraceptive use

Yes

39

44

13

25

None

50

56

40

76

0.021

Menopause

Pre-menopause

38

42

21

40

Post-menopause

52

58

32

60

0.661

Parity

Null

5

6

2

4

Low parity

27

30

15

28

Multi parity

58

64

36

68

0.856

Alcohol use

Yes

43

48

23

56.6

No

47

52

30

43.4

0.308

Taking tobacco

Yes

7

8

7

13.2

No

82

92

46

86.8

0.320

Hemoglobin

Severe anaemia

0

0

2

4

Moderate anaemia

7

8

7

13

Mild anaemia

8

9

5

9

Normal

75

83

39

74

0.186

Vitamin B12

Low

24

27

15

28

Normal

66

73

38

72

0.832