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Double-blind randomised controlled trial of folate treatment before conception to prevent recurrence of neural-tube defects.

Open access
Laurence, K M, James, N, Miller, M H, Tennant, G B, Campbell, H·1981·BMJ

Abstract

A randomized controlled double-blind trial was undertaken in south Wales to prevent the recurrence of neural-tube defects in women who had had one child with a neural-tube defect. Sixty women were allocated before conception to take 4 mg of folic acid a day before and during early pregnancy and 44 complied with these instructions. Fifty-one women were allocated to placebo treatment. There were no recurrences among the compliant mothers but two among the non-compliers and four among the women in the placebo group. Thus there were no recurrences among those who received supplementation and six among those who did not; this difference is significant (p = 0.04). It is concluded that folic acid supplementation might be a cheap, safe, and effective method of primary prevention of neural-tube defects but that this must be confirmed in a large, multicentre trial.

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Metadata

Authors
Laurence, K. M., James, N., Miller, M. H., Tennant, G. B., & Campbell, H.
Venue
BMJ
Publisher
BMJ
Published
1981-05-09
Volume
282
Issue
6275
Pages
1509-1511
ISSN
  • 0007-1447 (ISSN-L)
  • 0959-8138
  • 1468-5833
OpenAlex
W1986667412
Cited by
684
References
0
FWCI
21.50
Type
journal article
Language
en
Open access
bronze

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CoChat. (2026). Citation check: Double-blind randomised controlled trial of folate treatment before conception to prevent recurrence of neural-tube defects. https://app.cochat.ai/papers/10.1136/bmj.282.6275.1509
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Laurence, K. M., James, N., Miller, M. H., Tennant, G. B., & Campbell, H. (1981). Double-blind randomised controlled trial of folate treatment before conception to prevent recurrence of neural-tube defects. BMJ. https://doi.org/10.1136/bmj.282.6275.1509

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.