|
Study
|
Design
|
Subjects
|
|
Mulinare et al., 1988 (as reported in CDC, 1992)
|
Case/control in metropolitan Atlanta
|
NTDa case infants and normal control infants
Pregnant women without a prior NTD-affected pregnancy
|
|
Bower and Stanley, 1989 (as reported in CDC, 1992)
|
Case/control in Western Australia
|
Spina bifida case infants and normal control infants
Pregnant women without a prior NTD-affected pregnancy
|
|
Mills et al., 1989 (as reported in CDC, 1992)
|
Case/control in California and Illinois
|
NTD case infants and normal control infants
Pregnant women without a prior NTD-affected pregnancy
|
|
Milunsky et al., 1989 (as reported in CDC, 1992)
|
Prospective cohort in New England
|
NTD case infants and normal control infants
Pregnant women without a prior NTD-affected pregnancy
|
