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  • Retraction Note
  • Open Access

Retraction Note: “folic acid supplementation, dietary folate intake during pregnancy and risk for spontaneous preterm delivery: a prospective observational cohort study”

  • Verena Sengpiel1Email author,
  • Jonas Bacelis1,
  • Ronny Myhre2,
  • Solveig Myking2,
  • Aase Devold Pay3,
  • Margaretha Haugen4,
  • Anne-Lise Brantsæter4,
  • Helle Margrete Meltzer4,
  • Roy M Nilsen5,
  • Per Magnus6,
  • Stein Emil Vollset7,
  • Staffan Nilsson8 and
  • Bo Jacobsson1, 2
BMC Pregnancy and Childbirth201414:202

https://doi.org/10.1186/1471-2393-14-202

Received: 12 June 2014

Accepted: 12 June 2014

Published: 3 July 2014

The original article was published in BMC Pregnancy and Childbirth 2013 13:160

Retraction

This article [1] has been retracted by the authors, as some of the reported data was incorrect. The error concerned approximately 8% of the cohort (women who answered the first version of the food frequency questionnaire, before 2002) and was caused by misclassification of the amount of the women’s reported folic acid supplementation (no supplement use instead of missing information on supplement use). The error led to minor changes in the results.

However, the estimate of the association between folate intake and spontaneous preterm delivery did not change the conclusions after the error was corrected.

In consultation with the Journal’s editors we decided to retract the article from BMC Pregnancy and Childbirth.

A corrected manuscript will be resubmitted to the Journal at the time of retraction.

On behalf of all authors,

Verena Sengpiel and Bo Jacobsson.

Notes

Authors’ Affiliations

(1)
Department of Obstetrics and Gynaecology, Sahlgrenska Academy, Sahlgrenska University Hospital/Östra, Göteborg, Sweden
(2)
Department of Genes and Environment, Division of Epidemiology, Norwegian Institute of Public Health, Nydalen, Norway
(3)
Department of Obstetrics, Oslo University Hospital, Nydalen, Norway
(4)
Department of Exposure and Risk Assessment, Division of Environmental Medicine, Norwegian Institute of Public Health, Nydalen, Norway
(5)
Department of Public Health and Primary Health Care, University of Bergen, Bergen, Norway
(6)
Division of Epidemiology, Norwegian Institute of Public Health, Oslo, Norway
(7)
Norwegian Institute of Public Health and University of Bergen, Bergen, Norway
(8)
Mathematical Sciences, Chalmers University of Technology, Göteborg, Sweden

References

  1. Sengpiel V, Bacelis J, Myhre R, Myking S, Pay AD, Haugen M, Brantsæter A-L, Meltzer HM, Nilsen RM, Magnus P, Vollset SE, Nilsson S, Jacobsson B: Folic acid supplementation, dietary folate intake during pregnancy and risk for spontaneous preterm delivery: a prospective observational cohort study. BMC Preg Childbirth. 2013, 13: 160-10.1186/1471-2393-13-160.View ArticleGoogle Scholar
  2. Pre-publication history

    1. The pre-publication history for this paper can be accessed here:http://www.biomedcentral.com/1471-2393/14/202/prepub

Copyright

© Sengpiel et al.; licensee BioMed Central Ltd. 2014

This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

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