Evidence map›Paper›PMID 31004139›Full record

Trial reportThe American journal of clinical nutrition2019

The Kansas University DHA Outcomes Study (KUDOS) clinical trial: long-term behavioral follow-up of the effects of prenatal DHA supplementation.

John Colombo, D Jill Shaddy, Kathleen Gustafson, Byron J Gajewski, Jocelynn M Thodosoff, Elizabeth Kerling, Susan E Carlson

2 registry-linked trialsOpen access · bronzeAbstract readRandomized Controlled Trial
In one paragraph

Trial report in The American journal of clinical nutrition, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 2 registered trials, which are not on this map. Cited by 37 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
37citing papers in PubMed, 3 pooled it
5.4field-weighted citation impact, top 3% 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.

NCT00266825 phase3completednot on this map

Kansas University DHA Outcome Study (KUDOS)

TypeinterventionalSponsorSusan Carlson, PhDRan2006 to 2011Enrolled350ConditionsPregnancyArmsDHA, Placebo capsule
NCT02487771 phase3completednot on this map

Kansas University DHA Outcome Study (KUDOS) Follow-Up

TypeinterventionalSponsorSusan Carlson, PhDRan2008 to 2016Enrolled190ConditionsPregnancyArmsDHA, Placebo Capsule
3 · Its place in the literature

Who cites it

37 citing papers in PubMed, 3 syntheses or guidelines pooled it, 60 citations in OpenAlex.

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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

7 authors at 2 institutions in 1 country.

John ColomboDepartment of Psychology and Schiefelbusch Institute for Life Span Studies, University of Kansas, Lawrence, KS.
D Jill ShaddyDepartment of Dietetics and Nutrition, University of Kansas Medical Center, Kansas City, KS.
Kathleen GustafsonHoglund Brain Imaging Center, University of Kansas Medical Center, Kansas City, KS.
Byron J GajewskiDepartment of Biostatistics, University of Kansas Medical Center, Kansas City, KS.
Jocelynn M ThodosoffDepartment of Dietetics and Nutrition, University of Kansas Medical Center, Kansas City, KS.
Elizabeth KerlingDepartment of Dietetics and Nutrition, University of Kansas Medical Center, Kansas City, KS.
Susan E CarlsonDepartment of Dietetics and Nutrition, University of Kansas Medical Center, Kansas City, KS.
University of Kansas Medical Center · USUniversity of Kansas · US

Funding

Using PCORnet to Expand the DS-CONNECT Cohort Through Healthcare System Recruitment, Incorporating Electronic Health Records, and Assessing Self-DeterminationU54HD090216 · NICHD · UNIVERSITY OF KANSAS LAWRENCE · PI COLOMBO, JOHN A. · 2016 to 2020
$6.2M
DHA Supplementation and Pregnancy OutcomeR01HD047315 · NICHD · UNIVERSITY OF KANSAS MEDICAL CENTER · PI CARLSON, SUSAN E, COLOMBO, JOHN A. · 2006 to 2016
$4.9M
NICHD NIH HHS R01 HD047315NICHD NIH HHS U54 HD090216
6 · The paper itself

Abstract

backgroundDocosahexaenoic acid (DHA) is a long-chain polyunsaturated fatty acid that has been linked to improved vision and cognition in postnatal feeding studies and has been consistently associated with reduction of early preterm birth in prenatal supplementation trials. This is a report of the first long-term follow-up of infants from mothers receiving prenatal DHA supplementation in a US cohort.

objectiveOur objective was to evaluate the efficacy of the prenatal supplementation on both global and granular longitudinal assessments of cognitive and behavioral development.

methodsIn a randomized double-blind clinical trial, mothers received either 600 mg/d of DHA or a placebo beginning at 14.5 weeks of gestation and capsules were provided until delivery. Children from those pregnancies were followed by cognitive and behavioral assessments administered from 10 mo through 6 y of age. From 301 mothers in the initial study, ∼200 infants completed the longitudinal schedule.

resultsAlthough this intervention had been shown to reduce high-risk pregnancies and improve visual attention in infants during the first year, only a few positive long-term effects of prenatal DHA supplementation emerged from analyses of this follow-up. Increases in maternal blood DHA during pregnancy were related to verbal and full scale intelligence quotient (IQ) scores at 5 and 6 y, but these effects disappeared after controlling for SES. Maternal blood DHA concentrations at delivery were unrelated to outcomes, although maternal DHA at enrollment was related to productive vocabulary at 18 mo.

conclusionsAlthough prenatal DHA supplementation substantially reduced early preterm birth and improved visual attention in infancy in this sample, no consistent long-term benefits were observed into childhood. Increases in maternal blood DHA concentration in pregnancy were related to higher IQs but this effect was confounded with SES and disappeared when SES was statistically controlled. This trial was registered at http://www.clinicaltrials.gov as NCT00266825 and NCT02487771.

Indexed as

Dietary SupplementsPrenatal CarePrenatal Nutritional Physiological PhenomenaAdultAttentionChildChild BehaviorChild DevelopmentChild, PreschoolCognitionCohort StudiesDocosahexaenoic AcidsDouble-Blind MethodFemaleFollow-Up StudiesHumansDocosahexaenoic Acidsbehaviorclinical trialdevelopmentdocosahexaenoic acidlongitudinalprenatal

Identifiers

PMID31004139
PMCPMC6499507
OpenAlexW2939784913

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

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.