Evidence map›Paper›PMID 30277640›Full record

ArticleNutrition & dietetics : the journal of the Dietitians Association of Australia2020

Development and evaluation of a food frequency questionnaire to assess nutrient intakes of adult women in New Zealand.

Kathryn L Beck, Zara L Houston, Sarah A McNaughton, Rozanne Kruger

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In one paragraph

Article in Nutrition & dietetics : the journal of the Dietitians Association of Australia, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

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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

23 citing papers in PubMed, 1 synthesis or guideline pooled it.

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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.

Kathryn L BeckSchool of Sport, Exercise and Nutrition, Massey University, Auckland, New Zealand.ORCID 0000-0003-1825-1927
Zara L HoustonMiddlemore Hospital, Auckland, New Zealand.
Sarah A McNaughtonSchool of Exercise and Nutrition Science, Deakin University, Geelong, Victoria, Australia.
Rozanne KrugerSchool of Sport, Exercise and Nutrition, Massey University, Auckland, New Zealand.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimIn New Zealand, there are few adequate food frequency questionnaires for assessing dietary intake. This study aimed to develop and assess the relative validity of a multi-nutrient, culturally appropriate, semi-quantitative food frequency questionnaire for use in young adult New Zealand women (the New Zealand Women's Food Frequency Questionnaire (NZWFFQ)).

methodsWomen (n = 110) aged 16-45 years of Māori, Pacific or European ethnicity completed a NZWFFQ assessing dietary intake over the previous month, and a 4-day weighed food record. Relative validity was evaluated by comparing nutrient intakes from the NZWFFQ with the food record using Spearman's rank correlation coefficients, cross-classification, the weighted kappa statistic and Bland-Altman analysis.

resultsNutrient intake was higher from the NZWFFQ compared with the food record for all nutrients (range: 1%-64% difference) except alcohol (-16% difference). Energy-adjusted correlations ranged from 0.23 to 0.67 (average 0.48). Correct classification into same and adjacent quartiles was over 70% for all nutrients except folate and vitamin D. Gross misclassification into opposite quartiles ranged from 1% (monounsaturated fat, magnesium, calcium) to 10% (iron). The weighted kappa showed poor agreement for vitamin D and folate, fair agreement for most nutrients, and moderate agreement for fibre, vitamin E, magnesium, calcium and phosphorus.

conclusionsThe NZWFFQ overestimated intake of nearly all nutrients. While not suitable for assessing absolute intake, the NZWFFQ is suitable for ranking individuals based on nutrient intake demonstrating reasonable relative validity for this purpose.

Indexed as

Energy IntakeNutrition AssessmentAdolescentAdultCalciumDietary FiberFemaleFolic AcidHumansMagnesiumMiddle AgedNew ZealandPhosphorusSurveys and QuestionnairesVitamin DVitamin ECalciumDietary FiberFolic AcidMagnesiumPhosphorusVitamin DVitamin Edietary assessmentdiet questionnairevaliditywomen

Identifiers

PMID30277640
PMCPMC7187395

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LicenceCC BY-NC-ND
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Registered trials

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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.