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Cluster randomised controlled trial of a consumer behaviour intervention to improve healthy food purchases from online canteens: study protocol

Delaney, Tessa, Wyse, Rebecca, Yoong, Sze Lin, Sutherland, Rachel, Wiggers, John, Ball, Kylie, Campbell, Karen, Rissel, Chris and Wolfenden, Luke 2017, Cluster randomised controlled trial of a consumer behaviour intervention to improve healthy food purchases from online canteens: study protocol, BMJ open, vol. 7, no. 4, pp. 1-9, doi: 10.1136/bmjopen-2016-014569.

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Title Cluster randomised controlled trial of a consumer behaviour intervention to improve healthy food purchases from online canteens: study protocol
Author(s) Delaney, Tessa
Wyse, Rebecca
Yoong, Sze Lin
Sutherland, Rachel
Wiggers, John
Ball, KylieORCID iD for Ball, Kylie orcid.org/0000-0003-2893-8415
Campbell, Karen
Rissel, Chris
Wolfenden, Luke
Journal name BMJ open
Volume number 7
Issue number 4
Article ID e014569
Start page 1
End page 9
Total pages 9
Publisher BMJ Publishing Group
Place of publication London, Eng.
Publication date 2017
ISSN 2044-6055
2044-6055
Keyword(s) Nutrition & dietics
Public health
Public health nutrition
Child diet
Consumer behaviour
School canteen
Summary Introduction School canteens represent an opportune setting in which to deliver public health nutrition strategies given their wide reach, and frequent use by children. Online school canteen ordering systems, where students order and pay for their lunch online, provide an avenue to improve healthy canteen purchases through the application of consumer behaviour strategies that impact on purchasing decisions. The aim of this study is to assess the efficacy of a consumer behaviour intervention implemented in an online school canteen ordering system in reducing the kilojoule, saturated fat, sugar and sodium content of primary student lunch orders.

Methods and analysis
The study will employ a cluster randomised controlled trial design. Approximately 1040 students (aged 5–12 years) from 10 primary schools in New South Wales, Australia, currently using an online canteen ordering system will be invited to participate. Schools will be randomised in a 1:1 ratio to receive either the intervention (enhanced system) or control (standard online ordering only). The intervention will include evidence-based strategies shown to influence healthy food purchasing (strategies targeting availability, menu labelling, placement and prompting). The primary outcomes of the trial will be the mean content per student online lunch order of (1) energy (kJ), (2) saturated fat (g), (3) sugar (g) and (4) sodium (mg). The impact of the intervention will be determined by between-group assessment of the nutritional content of lunch purchases over a 2-month period postintervention initiation.
Language eng
DOI 10.1136/bmjopen-2016-014569
Field of Research 111199 Nutrition and Dietetics not elsewhere classified
Socio Economic Objective 920401 Behaviour and Health
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2017, The Authors
Free to Read? Yes
Use Rights Creative Commons Attribution non-commercial licence
Persistent URL http://hdl.handle.net/10536/DRO/DU:30094333

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Every reasonable effort has been made to ensure that permission has been obtained for items included in DRO. If you believe that your rights have been infringed by this repository, please contact drosupport@deakin.edu.au.