Evidence map›Paper›PMID 25885465›Full record

ArticleBMC pregnancy and childbirth2015

The validity of a food frequency questionnaire as a measure of PUFA status in pregnancy.

Gordon Parker, Georgia McClure, Bronwyn D Hegarty, Isabelle Granville Smith

Open access · goldAbstract read
In one paragraph

Article in BMC pregnancy and childbirth, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
0.5field-weighted citation impact, top 33% 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

12 citing papers in PubMed, 17 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

4 authors at 2 institutions in 1 country.

Gordon ParkerSchool of Psychiatry, University of New South Wales, Sydney, NSW, Australia. g.parker@blackdog.org.au.
Georgia McClureSchool of Psychiatry, University of New South Wales, Sydney, NSW, Australia. g.mcclure@unsw.edu.au.
Bronwyn D HegartySchool of Psychiatry, University of New South Wales, Sydney, NSW, Australia. bdhegarty@gmail.com.
Isabelle Granville SmithSchool of Psychiatry, University of New South Wales, Sydney, NSW, Australia. isabellegranvillesmith@yahoo.com.au.
UNSW Sydney · AUBlack Dog Institute · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundNutritional studies have found conflicting evidence regarding the ability of Food Frequency Questionnaires (FFQs) to demonstrate convergent validity with tissue content of omega-3 and omega-6 polyunsaturated fatty acids (PUFAs). We therefore sought to assess the convergent validity of a FFQ strategy when compared with a blood biomarker of PUFA levels in a sample of pregnant women.

methodA previously validated PUFA FFQ was completed by 895 pregnant women and compared to erythrocyte membrane of six PUFA variables.

resultsFour of the six correlations were found to be formally significant, however two of these demonstrated minimal associational strength. Moderate-high correlations between the FFQ-derived PUFA intake estimates and blood biomarker PUFA levels were shown only for eicosapentaenoic acid (EPA; 0.55) and docosahexaenoic acid (DHA; 0.61).

conclusionsOverall, the correlations were lower than those found in general population studies. Findings suggest biological estimates, such as blood samples, may be most appropriate to measure PUFA levels above indirect strategies such as an FFQ in this population. The results, if an indirect strategy is unavoidable, indicate specific PUFAs where an FFQ strategy may be most informative.

Indexed as

Diet RecordsAdultAustraliaBiomarkersDiet SurveysDocosahexaenoic AcidsEicosapentaenoic AcidFatty Acids, Omega-3Fatty Acids, Omega-6FemaleHumansPregnancyPrenatal Nutritional Physiological PhenomenaReproducibility of ResultsSurveys and QuestionnairesBiomarkersDocosahexaenoic AcidsEicosapentaenoic AcidFatty Acids, Omega-3Fatty Acids, Omega-6

Identifiers

PMID25885465
PMCPMC4367853
OpenAlexW2048301292

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.