Evidence map›Paper›PMID 27188814›Full record

Trial reportBMJ open2016

Does n-3 LCPUFA supplementation during pregnancy increase the IQ of children at school age? Follow-up of a randomised controlled trial.

Jacqueline F Gould, Karli Treyvaud, Lisa N Yelland, Peter J Anderson, Lisa G Smithers, Robert A Gibson, Andrew J McPhee, Maria Makrides

Open access · goldAbstract readMulticenter StudyRandomized Controlled Trial
In one paragraph

Trial report in BMJ open, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed, 1 pooled it
7.2field-weighted citation impact, top 4% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

6 citing papers in PubMed, 1 synthesis or guideline pooled it, 21 citations in OpenAlex.

  1. Omega-3 fatty acid addition during pregnancy.The Cochrane database of systematic reviews · 2018
    Pooled it
  2. Trial
  3. Trial
  4. Review
  5. Article
  6. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors at 5 institutions in 1 country.

Jacqueline F GouldWomen's & Children's Health Research Institute, North Adelaide, South Australia, Australia South Australian Health and Medical Research Institute, Adelaide, Australia.
Karli TreyvaudVictorian Infant Brain Studies (VIBeS), Murdoch Children's Research Institute, Royal Children's Hospital, Parkville, Victoria, Australia.
Lisa N YellandWomen's & Children's Health Research Institute, North Adelaide, South Australia, Australia School of Public Health, The University of Adelaide, South Australian Health and Medical Research Institute, Adelaide, Australia.
Peter J AndersonVictorian Infant Brain Studies (VIBeS), Murdoch Children's Research Institute, Royal Children's Hospital, Parkville, Victoria, Australia.
Lisa G SmithersSchool of Public Health, The University of Adelaide, South Australian Health and Medical Research Institute, Adelaide, Australia.
Robert A GibsonFOODplus Research Centre, School of Agriculture, Food and Wine, Discipline of Paediatrics, The University of Adelaide, Glen Osmond, South Australia, Australia.
Andrew J McPheeNeonatal Services, Women's and Children's Hospital, North Adelaide, South Australia, Australia.
Maria MakridesWomen's & Children's Health Research Institute, North Adelaide, South Australia, Australia South Australian Health and Medical Research Institute, Adelaide, Australia.
Women's & Children's Health Research Institute · AUMurdoch Children's Research Institute · AUSouth Australian Health and Medical Research Institute · AUUniversity of Adelaide · AUWomen's and Children's Hospital · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionDespite recommendations that pregnant women increase their docosahexaenoic acid (DHA) intake to support fetal brain development, a recent systematic review found a lack of high-quality data to support the long-term effects of DHA supplementation on children's neurodevelopment. METHODS AND ANALYSIS: We will assess child neurodevelopment at 7 years of age in follow-up of a multicentre double-blind randomised controlled trial of DHA supplementation in pregnancy. In 2010-2012, n=2399 Australian women with a singleton pregnancy <21 weeks' gestation were randomised to receive 3 capsules daily containing a total dose of 800 mg DHA/day or a vegetable oil placebo until birth. N=726 children from Adelaide (all n=97 born preterm, random sample of n=630 born at term) were selected for neurodevelopmental follow-up and n=638 (preterm n=85) are still enrolled at 7 years of age. At the 7-year follow-up, a psychologist will assess the primary outcome, IQ, with the Wechsler Abbreviated Scale of Intelligence, Second Edition. Specific measures of executive functioning (Fruit Stroop and the Rey Complex Figure), attention (Test of Everyday Attention for Children), memory and learning (Rey Auditory Verbal Learning Test), language (Clinical Evaluation of Language Fundamentals, Fourth Edition) and basic educational skills (Wide Range Achievement Test, Fourth Edition) will also be administered. Caregivers will be asked to complete questionnaires measuring behaviour and executive functioning. Families, clinicians and research personnel are blinded to group assignment with the exception of families who requested unblinding prior to the follow-up. All analyses will be conducted according to the intention-to-treat principal. ETHICS AND DISSEMINATION: All procedures will be approved by the relevant institutional ethics committees prior to start of the study. The results of this study will be disseminated in peer-reviewed journal publications and academic presentations. TRIAL REGISTRATION NUMBERS: ACTRN12605000569606 and ACTRN12614000770662.

Indexed as

Dietary SupplementsDocosahexaenoic AcidsPregnant PeoplePrenatal CareAdministration, OralAdultAustraliaChildChild DevelopmentDouble-Blind MethodFemaleFollow-Up StudiesHumansInfant, NewbornIntelligenceLearningDocosahexaenoic AcidscognitionDocosahexaenoic acidLCPUFAneurodevelopmentomega-3 fatty acidsprenatal

Identifiers

PMID27188814
PMCPMC4874207
OpenAlexW2408213214

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.