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We published a paper in Archives of Disease in Childhood establishing the baseline prevalence of neural tube defects (NTDs) in England prior to the planned mandatory fortification if non-wholemeal wheat flour with folic acid, between 2000 and 2019.
People have long been advised to supplement their diet with folic acid in advance of pregnancy to prevent NTDs but evidence shows that folate levels in those of childbearing age are dropping.
Our work combined legacy registration data with NCARDRS data and showed that NTD levels remained stable, until the formation of NCARDRS where there has been an increase in the prevalence of anencephaly. This may be a result of increased ascertainment and higher data quality relating to NCARDRS work with the FASP programme, as NTDs are conditions included in the audit. National and standardised CA registration is in place, enabling the evaluation of the impact of fortification on NTD prevalence.
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