Evidence map›Paper›PMID 31174547›Full record

ArticleThe international journal of behavioral nutrition and physical activity2019

Prominent positioning and food swaps are effective interventions to reduce the saturated fat content of the shopping basket in an experimental online supermarket: a randomized controlled trial.

Dimitrios A Koutoukidis, Susan A Jebb, José M Ordóñez-Mena, Michaela Noreik, Melina Tsiountsioura, Sarah Kennedy, Sarah Payne-Riches, Paul Aveyard, Carmen Piernas

Abstract read
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In one paragraph

Article in The international journal of behavioral nutrition and physical activity, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed
–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

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

27 citing papers in PubMed.

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  9. The use of food swaps to encourage healthier online food choices: a randomized controlled trial.The international journal of behavioral nutrition and physical activity · 2021
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  19. Online Pilot Grocery Intervention among Rural and Urban Residents Aimed to Improve Purchasing Habits.International journal of environmental research and public health · 2022
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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

9 authors.

Dimitrios A KoutoukidisNuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, UK. dimitrios.koutoukidis@phc.ox.ac.uk.ORCID 0000-0002-1955-7234
Susan A JebbNuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, UK.
José M Ordóñez-MenaNuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, UK.
Michaela NoreikNuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, UK.
Melina TsiountsiouraNuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, UK.
Sarah KennedyNuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, UK.
Sarah Payne-RichesNuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, UK.
Paul AveyardNuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, UK.
Carmen PiernasNuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, UK.

Funding

CTSA INFRASTRUCTURE FOR PEDIATRIC RESEARCHUL1RR025780 · NCRR · UNIVERSITY OF COLORADO DENVER · PI SOKOL, RONALD J. · 2008 to 2011
$61.3M
Department of Health IS-BRC-1215-20008NCRR NIH HHS UL1 RR025780NIH HHS UL1 RR025780
6 · The paper itself

Abstract

backgroundInterventions to reduce the saturated fat (SFA) content of food purchases may help reduce SFA consumption and lower cardiovascular risk. This factorial RCT aimed to examine the effect of altering the default order of foods and being offered a swap on the SFA content of food selected during an online shopping experiment.

methodsUK adults who were the primary grocery shoppers for their household were recruited online and invited to select items in a custom-made experimental online supermarket using a 10-item shopping list. Participants were randomly allocated to one of four groups (i) to see products within a category ranked in ascending order of SFA content, (ii) receive an offer to swap to a product with less SFA, (iii) a combination of both interventions, or (iv) no intervention. The primary outcome was the difference in percentage energy from SFA in the shopping basket between any of the four groups. The outcome assessors and statistician were blinded to intervention allocation.

resultsBetween March and July 2018, 1240 participants were evenly randomised and 1088 who completed the task were analysed (88%). Participants were 65% female and aged 38y (SD 12). Compared with no intervention (n = 275) where the percentage energy from SFA was 25.7% (SD 5.6%), altering the order of foods (n = 261) reduced SFA by [mean difference (95%CI)] -5.0% (- 6.3 to - 3.6) and offering swaps (n = 279) by - 2.0% (- 3.3 to - 0.6). The combined intervention (n = 273) was significantly more effective than swaps alone (- 3.4% (- 4.7 to - 2.1)) but not different than altering the order alone (- 0.4% (- 1.8 to 0.9)), p = 0.04 for interaction.

conclusionsAltering the default order to show foods in ascending order of SFA and offering a swap with lower SFA reduced percentage energy from SFA in an experimental online supermarket. Environmental-level interventions, such as altering the default order, may be a more promising way to improve food purchasing than individual-level ones, such as offering swaps.

trial registrationISRCTN13729526 https://doi.org/10.1186/ISRCTN13729526 26th February 2018.

Indexed as

Dietary FatsFood PreferencesAdultConsumer BehaviorDietFemaleHealth PromotionHumansMaleMiddle AgedDietary FatsDefault orderDietFood purchasesOnline shoppingRandomized controlled trialSaturated fatSupermarketSwaps

Identifiers

PMID31174547
PMCPMC6555993

What OpenQuestion holds

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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.