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Table 1 Characteristics of cases of myelomeningocele and controls in Bangladesh (mean ± SD, except where noted)

From: Arsenic is associated with reduced effect of folic acid in myelomeningocele prevention: a case control study in Bangladesh

Characteristic

Controls (n = 55)

Cases (n = 57)

p Value

Age (months)

8.0 ± 4.9

5.9 ± 5.3

0.38

Male [n (%)]

32 (58)

34 (60)

0.87

Mother’s age at delivery (years)

23.1 ± 4.1

25.2 ± 5.4

0.02

Father’s age at delivery (years)

31.5 ± 5.4

32.5 ± 6.8

0.38

Reported prenatal folic acid use [n(%)]

39 (71)

28 (49)

0.02

First born

25 (46)

23 (40)

0.56

Cesarian section [n(%)]

24 (44)

23 (40)

0.72

Birth site

  

0.15

Hospital

23 (22)

14 (25)

 

Birth center/clinic

11 (20)

15 (26)

 

Home

24 (44)

28 (49)

 

Reported any ultrasound during pregnancy [n(%)]

50 (91)

48 (92)

0.19

Plasma folate concentration (nmol/L)

10.6 ± 14.7

10.5 ± 13.8

0.97

Level of neural tube defect

   

Lumbar [n (%)]

 

49 (86)

 

Cervical [n (%)]

 

8 (14)

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