Which women are at greater risk of having a baby with a neural tube defect (NTD)?
The following women are at higher risk of having a baby with a NTD: a previous pregnancy resulting in a NTD, a family history of NTDs, women who have type 2 diabetes, have a gastrointestinal malabsorption disorder or are taking drugs that interfere with folic acid metabolism such as antiepileptic drugs.