Cluster randomised controlled trial of an online intervention to improve healthy food purchases from primary school canteens: a study protocol of the ‘click & crunch’ trial

Introduction School canteens are the most frequently accessed take-away food outlet by Australian children. The rapid development of online lunch ordering systems for school canteens presents new opportunities to deliver novel public health nutrition interventions to school-aged children. This study...

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Main Authors: Karen Campbell, Rachel Sutherland, Luke Wolfenden, Nicole Nathan, Sze Lin Yoong, Chris Rissel, Penny Reeves, Rebecca Wyse, Tessa Delaney, Pennie Gibbins, Kylie Ball, Kirsty Seward, Rachel Zoetemeyer, John Wiggers, Chris Oldmeadow, Kathryn Reilly
Format: Article
Language:English
Published: BMJ Publishing Group 2019-09-01
Series:BMJ Open
Online Access:https://bmjopen.bmj.com/content/9/9/e030538.full
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author Karen Campbell
Rachel Sutherland
Luke Wolfenden
Nicole Nathan
Sze Lin Yoong
Chris Rissel
Penny Reeves
Rebecca Wyse
Tessa Delaney
Pennie Gibbins
Kylie Ball
Kirsty Seward
Rachel Zoetemeyer
John Wiggers
Chris Oldmeadow
Kathryn Reilly
author_facet Karen Campbell
Rachel Sutherland
Luke Wolfenden
Nicole Nathan
Sze Lin Yoong
Chris Rissel
Penny Reeves
Rebecca Wyse
Tessa Delaney
Pennie Gibbins
Kylie Ball
Kirsty Seward
Rachel Zoetemeyer
John Wiggers
Chris Oldmeadow
Kathryn Reilly
author_sort Karen Campbell
collection DOAJ
description Introduction School canteens are the most frequently accessed take-away food outlet by Australian children. The rapid development of online lunch ordering systems for school canteens presents new opportunities to deliver novel public health nutrition interventions to school-aged children. This study aims to assess the effectiveness and cost-effectiveness of a behavioural intervention in reducing the energy, saturated fat, sugar and sodium content of online canteen lunch orders for primary school children.Methods and analysis The study will employ a cluster randomised controlled trial design. Twenty-six primary schools in New South Wales, Australia, that have an existing online canteen ordering system will be randomised to receive either a multi-strategy behavioural intervention or a control (the standard online canteen ordering system). The intervention will be integrated into the existing online canteen system and will seek to encourage the purchase of healthier food and drinks for school lunch orders (ie, items lower in energy, saturated fat, sugar and sodium). The behavioural intervention will use evidence-based choice architecture strategies to redesign the online menu and ordering system including: menu labelling, placement, prompting and provision of feedback and incentives. The primary trial outcomes will be the mean energy (kilojoules), saturated fat (grams), sugar (grams) and sodium (milligrams) content of lunch orders placed via the online system, and will be assessed 12 months after baseline data collection.Ethics and dissemination The study was approved by the ethics committees of the University of Newcastle (H-2017–0402) and the New South Wales Department of Education and Communities (SERAP 2018065), and the Catholic Education Office Dioceses of Sydney, Parramatta, Lismore, Maitland-Newcastle, Bathurst, Canberra-Goulburn, Wollongong, Wagga Wagga and Wilcannia-Forbes. Study results will be disseminated through peer-reviewed publications, reports, presentations at relevant national and international conferences and via briefings to key stakeholders. Results will be used to inform future implementation of public health nutrition interventions through school canteens, and may be transferable to other food settings or online systems for ordering food.Trial registration number ACTRN12618000855224.
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spelling doaj-art-a49b3d21b8a9462b966a181881787e0b2024-11-28T16:25:12ZengBMJ Publishing GroupBMJ Open2044-60552019-09-019910.1136/bmjopen-2019-030538Cluster randomised controlled trial of an online intervention to improve healthy food purchases from primary school canteens: a study protocol of the ‘click & crunch’ trialKaren Campbell0Rachel Sutherland1Luke Wolfenden2Nicole Nathan3Sze Lin Yoong4Chris Rissel5Penny Reeves6Rebecca Wyse7Tessa Delaney8Pennie Gibbins9Kylie Ball10Kirsty Seward11Rachel Zoetemeyer12John Wiggers13Chris Oldmeadow14Kathryn Reilly155 School of Exercise & Nutrition Science, Deakin University, Burwood, Victoria, AustraliaHunter Medical Research Institute, Newcastle, New South Wales, AustraliaSchool of Medicine and Public Health, University of Newcastle, Callaghan, New South Wales, AustraliaNational Centre of Implementation Science, University of Newcastle, Newcastle, New South Wales, Australiaassociate professor3 Sydney School of Public Health, The University of Sydney, Sydney, New South Wales, Australia8 Health Research Economics, Hunter Medical Research Institute, New Lambton, New South Wales, Australia4 Hunter Medical Research Unit, New Lambton, New South Wales, Australia1 School of Medicine and Public Health, University of Newcastle, Callaghan, New South Wales, Australia1 School of Medicine and Public Health, University of Newcastle, Callaghan, New South Wales, AustraliaInstitute for Physical Activity and Nutrition, Deakin University, Burwood, Victoria, Australia1 School of Medicine and Public Health, University of Newcastle, Callaghan, New South Wales, Australia1 School of Medicine and Public Health, University of Newcastle, Callaghan, New South Wales, Australia3 Priority Research Centre - Health Behaviour, University of Newcastle, Callaghan, New South Wales, AustraliaSchool of Medicine and Public Health, The University of Newcastle, Callaghan, NSW, Australia1 School of Medicine and Public Health, University of Newcastle, Callaghan, New South Wales, AustraliaIntroduction School canteens are the most frequently accessed take-away food outlet by Australian children. The rapid development of online lunch ordering systems for school canteens presents new opportunities to deliver novel public health nutrition interventions to school-aged children. This study aims to assess the effectiveness and cost-effectiveness of a behavioural intervention in reducing the energy, saturated fat, sugar and sodium content of online canteen lunch orders for primary school children.Methods and analysis The study will employ a cluster randomised controlled trial design. Twenty-six primary schools in New South Wales, Australia, that have an existing online canteen ordering system will be randomised to receive either a multi-strategy behavioural intervention or a control (the standard online canteen ordering system). The intervention will be integrated into the existing online canteen system and will seek to encourage the purchase of healthier food and drinks for school lunch orders (ie, items lower in energy, saturated fat, sugar and sodium). The behavioural intervention will use evidence-based choice architecture strategies to redesign the online menu and ordering system including: menu labelling, placement, prompting and provision of feedback and incentives. The primary trial outcomes will be the mean energy (kilojoules), saturated fat (grams), sugar (grams) and sodium (milligrams) content of lunch orders placed via the online system, and will be assessed 12 months after baseline data collection.Ethics and dissemination The study was approved by the ethics committees of the University of Newcastle (H-2017–0402) and the New South Wales Department of Education and Communities (SERAP 2018065), and the Catholic Education Office Dioceses of Sydney, Parramatta, Lismore, Maitland-Newcastle, Bathurst, Canberra-Goulburn, Wollongong, Wagga Wagga and Wilcannia-Forbes. Study results will be disseminated through peer-reviewed publications, reports, presentations at relevant national and international conferences and via briefings to key stakeholders. Results will be used to inform future implementation of public health nutrition interventions through school canteens, and may be transferable to other food settings or online systems for ordering food.Trial registration number ACTRN12618000855224.https://bmjopen.bmj.com/content/9/9/e030538.full
spellingShingle Karen Campbell
Rachel Sutherland
Luke Wolfenden
Nicole Nathan
Sze Lin Yoong
Chris Rissel
Penny Reeves
Rebecca Wyse
Tessa Delaney
Pennie Gibbins
Kylie Ball
Kirsty Seward
Rachel Zoetemeyer
John Wiggers
Chris Oldmeadow
Kathryn Reilly
Cluster randomised controlled trial of an online intervention to improve healthy food purchases from primary school canteens: a study protocol of the ‘click & crunch’ trial
BMJ Open
title Cluster randomised controlled trial of an online intervention to improve healthy food purchases from primary school canteens: a study protocol of the ‘click & crunch’ trial
title_full Cluster randomised controlled trial of an online intervention to improve healthy food purchases from primary school canteens: a study protocol of the ‘click & crunch’ trial
title_fullStr Cluster randomised controlled trial of an online intervention to improve healthy food purchases from primary school canteens: a study protocol of the ‘click & crunch’ trial
title_full_unstemmed Cluster randomised controlled trial of an online intervention to improve healthy food purchases from primary school canteens: a study protocol of the ‘click & crunch’ trial
title_short Cluster randomised controlled trial of an online intervention to improve healthy food purchases from primary school canteens: a study protocol of the ‘click & crunch’ trial
title_sort cluster randomised controlled trial of an online intervention to improve healthy food purchases from primary school canteens a study protocol of the click crunch trial
url https://bmjopen.bmj.com/content/9/9/e030538.full
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