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Maternal intake of seafood and supplementary long chain n-3 poly-unsaturated fatty acids and preterm delivery

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dc.contributor Háskóli Íslands
dc.contributor University of Iceland
dc.contributor.author Brantsæter, Anne Lise
dc.contributor.author Englund-Ögge, Linda
dc.contributor.author Haugen, Margareta
dc.contributor.author Birgisdottir, Bryndis Eva
dc.contributor.author Knutsen, Helle Katrine
dc.contributor.author Sengpiel, Verena
dc.contributor.author Myhre, Ronny
dc.contributor.author Alexander, Jan
dc.contributor.author Nilsen, Roy M.
dc.contributor.author Jacobsson, Bo
dc.contributor.author Meltzer, Helle Margrete
dc.date.accessioned 2017-06-02T14:13:18Z
dc.date.available 2017-06-02T14:13:18Z
dc.date.issued 2017-01-19
dc.identifier.citation Brantsæter, A. L., Englund-Ögge, L., Haugen, M., Birgisdottir, B. E., Knutsen, H. K., Sengpiel, V., . . . Meltzer, H. M. (2017). Maternal intake of seafood and supplementary long chain n-3 poly-unsaturated fatty acids and preterm delivery. BMC Pregnancy and Childbirth, 17(1), 41. doi:10.1186/s12884-017-1225-8
dc.identifier.issn 1471-2393
dc.identifier.uri https://hdl.handle.net/20.500.11815/290
dc.description.abstract Background Preterm delivery increases the risk of neonatal morbidity and mortality. Studies suggest that maternal diet may affect the prevalence of preterm delivery. The aim of this study was to assess whether maternal intakes of seafood and marine long chain n-3 polyunsaturated fatty acids (LCn-3PUFA) from supplements were associated with preterm delivery. Methods The study population included 67,007 women from the Norwegian Mother and Child Cohort Study. Maternal food and supplement intakes were assessed by a validated self-reported food frequency questionnaire in mid-pregnancy. Information about gestational duration was obtained from the Medical Birth Registry of Norway. We used Cox regression to estimate hazard ratios (HR) with 95% confidence intervals (CI) for associations between total seafood, lean fish, fatty fish, and LCn-3PUFA intakes and preterm delivery. Preterm was defined as any onset of delivery before gestational week 37, and as spontaneous or iatrogenic deliveries and as preterm delivery at early, moderate, and late preterm gestations. Results Lean fish constituted 56%, fatty fish 34% and shellfish 10% of seafood intake. Any intake of seafood above no/rare intake (>5 g/d) was associated with lower prevalence of preterm delivery. Adjusted HRs were 0.76 (CI: 0.66, 0.88) for 1–2 servings/week (20–40 g/d), 0.72 (CI: 0.62, 0.83) for 2–3 servings/week (40–60 g/d), and 0.72 (CI: 0.61, 0.85) for ≥3 servings/week (>60 g/d), p-trend <0.001. The association was seen for lean fish (p-trend: 0.005) but not for fatty fish (p-trend: 0.411). The intake of supplementary LCn-3PUFA was associated only with lower prevalence of early preterm delivery (before 32 gestational weeks), while increasing intake of LCn-3PUFA from food was associated with lower prevalence of overall preterm delivery (p-trend: 0.002). Any seafood intake above no/rare was associated with lower prevalence of both spontaneous and iatrogenic preterm delivery, and with lower prevalence of late preterm delivery. Conclusions Any intake of seafood above no/rare consumption was associated with lower prevalence of preterm delivery. The association was stronger for lean than for fatty fish. Intake of supplementary LCn-3PUFA was associated only with early preterm delivery. The findings corroborate the current advice to include fish and seafood as part of a balanced diet during pregnancy.
dc.description.sponsorship The Norwegian Mother and Child Cohort Study is supported by the Norwegian Ministry of Health and the Ministry of Education and Research, NIH/NIEHS (contract no N01-ES-75558), NIH/NINDS (grant no.1 UO1 NS 047537-01 and grant no.2 UO1 NS 047537-06A1). Payment of article-processing charges for this paper was covered by the Norwegian Institute of Public Health's institutional membership with BMC.
dc.format.extent 41
dc.language.iso en
dc.publisher Springer Nature
dc.relation.ispartofseries BMC Pregnancy and Childbirth;17(1)
dc.rights info:eu-repo/semantics/openAccess
dc.subject Preterm delivery
dc.subject Seafood consumption
dc.subject Food frequency questionnaire
dc.subject Meðganga
dc.subject Mataræði
dc.subject Sjávarafurðir
dc.title Maternal intake of seafood and supplementary long chain n-3 poly-unsaturated fatty acids and preterm delivery
dc.type info:eu-repo/semantics/article
dcterms.license This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. 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.
dc.description.version Peer Reviewed
dc.identifier.journal BMC Pregnancy and Childbirth
dc.identifier.doi 10.1186/s12884-017-1225-8
dc.relation.url https://bmcpregnancychildbirth.biomedcentral.com/articles/10.1186/s12884-017-1225-8
dc.contributor.department Matvæla- og næringarfræðideild (HÍ)
dc.contributor.department Faculty of Food Science and Nutrition (UI)
dc.contributor.school Heilbrigðisvísindasvið (HÍ)
dc.contributor.school School of Health Sciences (UI)

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