Evidence map›Paper›PMID 31791299›Full record

ArticleBMC public health2019

Increasing the proportion of healthier foods available with and without reducing portion sizes and energy purchased in worksite cafeterias: protocol for a stepped-wedge randomised controlled trial.

James P Reynolds, Daina Kosīte, Brier Rigby Dames, Laura A Brocklebank, Mark Pilling, Rachel Pechey, Gareth J Hollands, Theresa M Marteau

Open access · goldAbstract readClinical Trial Protocol
PubMed Full text at PMC Publisher
In one paragraph

Article in BMC public health, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
0.7field-weighted citation impact, top 25% 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

2 citing papers in PubMed, 4 citations in OpenAlex.

  1. Trial
  2. Article
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 2 institutions in 1 country.

James P ReynoldsBehaviour and Health Research Unit, University of Cambridge, Cambridge, UK.ORCID http://orcid.org/0000-0003-1536-1557
Daina KosīteBehaviour and Health Research Unit, University of Cambridge, Cambridge, UK.
Brier Rigby DamesBehaviour and Health Research Unit, University of Cambridge, Cambridge, UK.
Laura A BrocklebankSchool of Psychological Science, University of Bristol, Bristol, UK.
Mark PillingBehaviour and Health Research Unit, University of Cambridge, Cambridge, UK.
Rachel PecheyBehaviour and Health Research Unit, University of Cambridge, Cambridge, UK.
Gareth J HollandsBehaviour and Health Research Unit, University of Cambridge, Cambridge, UK.
Theresa M MarteauBehaviour and Health Research Unit, University of Cambridge, Cambridge, UK. tm388@cam.ac.uk.
University of Cambridge · GBUniversity of Bristol · GB

Funding

Cancer Research UK 29425Cancer Research UK C4770/A29425Wellcome Trust 106679/Z/14/ZWellcome Trust 206853/Z/17/Z
6 · The paper itself

Abstract

backgroundOverconsumption of energy from food contributes to high rates of overweight and obesity in many populations. A promising set of interventions tested in pilot studies in worksite cafeterias, suggests energy intake may be reduced by increasing the proportion of healthier - i.e. lower energy - food options available, and decreasing portion sizes. The current study aims to assess the impact on energy purchased of i. increasing the proportion of lower energy options available; ii. combining this with reducing portion sizes, in a full trial.

methodsA stepped-wedge randomised controlled trial in 19 worksite cafeterias, where the proportion of lower energy options available in targeted food categories (including main meals, snacks, and cold drinks) will be increased; and combined with reduced portion sizes. The primary outcome is total energy (kcal) purchased from targeted food categories using a pooled estimate across all sites. Follow-up analyses will test whether the impact on energy purchased varies according to the extent of intervention implementation. DISCUSSION: This study will provide the most reliable estimate to date of the effect sizes of two promising interventions for reducing energy purchased in worksite cafeterias.

trial registrationThe study was prospectively registered on ISRCTN (date: 24.05.19; TRN: ISRCTN87225572; doi: https://doi.org/10.1186/ISRCTN87225572).

Indexed as

Consumer BehaviorDiet, HealthyFood ServicesFood SupplyPortion SizeAdultEnergy IntakeFemaleHumansMaleMealsMulticenter Studies as TopicObesityRandomized Controlled Trials as TopicWorkplaceAvailabilityChoice architectureHealthier eatingNudgingObesityPhysical micro-environment interventionsPortion sizeRandomised controlled trialStepped wedge trialWorkplace interventions

Identifiers

PMID31791299
PMCPMC6889705
OpenAlexW2989624623

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.