Research Center in "Epidemiology, Biostatistics and Clinical Research", School of Public Health, Université libre de Bruxelles (ULB), CP598, Route de Lennik 808, Brussels, 1070, Belgium.
Club Européen des Diététiciens de L'Enfance (CEDE), Esplanade 17, Ath, 7800, Belgium.
Trials. 2023 Sep 26;24(1):611. doi: 10.1186/s13063-023-07643-z.
Effectiveness of actions to reduce sugar-sweetened beverage (SB) consumption in children still needs to be improved. Furthermore, the growing concern about sustainable food systems encourages to develop sustainability-based interventions. The objective of this cluster randomised controlled trial is to evaluate the long-term effectiveness of nutrition- and environmental sustainability-based interventions on the reduction in SB intake and on the increase in tap water consumption in 3rd to 6th grade primary school children (8 to 11 years of age).
Forty-eight French-speaking Belgian primary schools (equivalent to around 3500 pupils involved in the evaluation) are randomised using a factorial plan: (i) control, (ii) nutrition-based intervention, (iii) sustainability-based intervention, and (iv) both. The interventions (encouragement of water breaks; provision of posters, leaflets, reusable cups, and glass bottles; website; meetings at school) were undertaken from February 2022 to June 2023. Evaluation includes questionnaires for the children and their parents on various determinants of dietary behaviour, a 4-day diary to collect information on the child's beverage consumption, and audits at schools. The first evaluation was conducted in Spring 2021 before any intervention, with the two post-intervention evaluations being held in 2022 and 2023. The main quantitative judgement criterion will be the change over time in the mean SB consumption (in ml/day) in the intervention groups compared with the control group. Given the context of the research (school), the safety of the intervention, and the content of data collection, a consent was acknowledged as unnecessary by the Ethical Committee of the Faculty of Psychology (ULB; n°073/2021), but children and parents are explicitly informed of their right to refuse to fill in the questionnaires.
Multicomponent interventions based on nutrition and on environmental sustainability, alone or mixed, will provide an original and topical insight into health promotion at school around dietary behaviours. The dissemination plan will enable to widely inform stakeholders, school staff, and families, in addition to the scientific community through the usual medium (articles, conferences), about the research findings in 2024-2025.
ISRCTN Registry ISRCTN99843102. Retrospectively registered on 25 May 2021.
降低儿童含糖饮料（SSB）摄入量的措施仍需提高效果。此外，对可持续食品系统的日益关注鼓励开发基于可持续性的干预措施。本集群随机对照试验的目的是评估基于营养和环境可持续性的干预措施对减少 3 至 6 年级小学生（8 至 11 岁）的 SSB 摄入量和增加自来水饮用的长期效果。
48 所法语比利时小学（相当于约 3500 名参与评估的学生）采用析因设计进行随机分组：（i）对照组，（ii）营养干预组，（iii）可持续性干预组，（iv）两者均有。干预措施（鼓励水休息；提供海报、传单、可重复使用的杯子和玻璃瓶；网站；学校会议）于 2022 年 2 月至 2023 年 6 月进行。评估包括对儿童及其父母的各种饮食行为决定因素的问卷调查、为期 4 天的日记，以收集儿童饮料消费信息，以及学校审计。第一次评估于 2021 年春季进行，即在任何干预措施之前，两次干预后评估于 2022 年和 2023 年进行。主要的定量判断标准将是干预组与对照组相比，SSB 消费（以毫升/天为单位）随时间的变化。考虑到研究（学校）的背景、干预的安全性和数据收集的内容，伦理委员会（ULB；n°073/2021）承认该研究不需要同意，但明确告知儿童和家长拒绝填写问卷的权利。
基于营养和环境可持续性的单一或混合的多组分干预措施将为学校围绕饮食行为的健康促进提供新颖和热门的见解。传播计划将使利益相关者、学校工作人员和家庭，以及通过通常的媒体（文章、会议）向科学界，在 2024-2025 年了解研究结果。
ISRCTN 注册处 ISRCTN99843102。2021 年 5 月 25 日回顾性注册。
