一项针对改善小学食堂健康食品采购的在线干预措施的群组随机对照试验：“点击与嘎吱声”试验研究方案。
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.
机构信息
School of Medicine and Public Health, University of Newcastle, Callaghan, New South Wales, Australia
Population Health Unit, Hunter New England Local Health District, Wallsend, New South Wales, Australia.
出版信息
BMJ Open. 2019 Sep 5;9(9):e030538. doi: 10.1136/bmjopen-2019-030538.
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.
引言：学校食堂是澳大利亚儿童最常光顾的外卖食品店。学校食堂在线午餐订购系统的快速发展为向学龄儿童提供新的公共卫生营养干预措施提供了新的机会。本研究旨在评估一项行为干预措施在降低小学生在线食堂午餐订单的能量、饱和脂肪、糖和钠含量方面的有效性和成本效益。
方法与分析：本研究将采用整群随机对照试验设计。澳大利亚新南威尔士州的 26 所小学将被随机分配到接受多策略行为干预组或对照组（标准在线食堂订餐系统）。干预措施将整合到现有的在线食堂系统中，并旨在鼓励为学校午餐订购更健康的食品和饮料（即能量、饱和脂肪、糖和钠含量较低的食品）。行为干预将利用基于证据的选择架构策略来重新设计在线菜单和订购系统，包括：菜单标签、位置、提示和提供反馈和激励。主要试验结果将是通过在线系统订购的午餐的平均能量（千焦耳）、饱和脂肪（克）、糖（克）和钠（毫克）含量，将在基线数据收集后 12 个月进行评估。
伦理与传播：该研究已获得纽卡斯尔大学伦理委员会（H-2017-0402）和新南威尔士州教育部和社区委员会（SERAP 2018065）的批准，以及天主教教育办公室悉尼、帕拉马塔、利斯莫尔、梅特兰-纽卡斯尔、巴瑟斯特、堪培拉-古尔本、卧龙岗、瓦加瓦加和威尔坎尼亚-福布斯的教区的批准。研究结果将通过同行评议的出版物、报告、在相关的国家和国际会议上的演讲以及向主要利益相关者的情况介绍进行传播。研究结果将用于为通过学校食堂实施公共卫生营养干预措施提供信息，并可能适用于其他食品场所或在线食品订购系统。
试验注册：ACTRN12618000855224。
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