基于家庭的WhatsApp干预措施促进亚马逊地区学童健康饮食行为：一项随机对照试验方案

Family-Based WhatsApp Intervention to Promote Healthy Eating Behaviors Among Amazonian School Children: Protocol for a Randomized Controlled Trial.

作者信息

Hovadick Ana Carolina de Andrade, Cardoso Marly Augusto

机构信息

Department of Nutrition, School of Public Health, University of Sao Paulo, Sao Paulo, Brazil.

Global Health and Tropical Medicine (GHTM), Associate Laboratory in Translation and Innovation Towards Global Health (LA-REAL), Instituto de Higiene e Medicina Tropical (IHMT), Universidade NOVA de Lisboa (UNL), Lisbon, Portugal.

出版信息

JMIR Res Protoc. 2024 Feb 19;13:e54446. doi: 10.2196/54446.

DOI:10.2196/54446

PMID:38373039

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC10912988/

Abstract

BACKGROUND

Stunting and micronutrient deficiencies have persistently affected children in the Brazilian Amazon for decades. However, in recent years, a notable increase in childhood overweight prevalence has been observed, particularly in the context of heightened food insecurity exacerbated by the COVID-19 pandemic. Despite the limited number of effective solutions proposed to tackle this problem, digital interventions have shown great promise worldwide in preventing obesity and promoting healthy diets.

OBJECTIVE

This study aims to describe the protocol of a family-based WhatsApp intervention, specifically designed to investigate the efficacy of multimedia messaging in preventing excessive weight gain and improving healthy eating practices among school-aged children in the Amazon region.

METHODS

This study protocol outlines a theory-driven randomized controlled trial based on the cognitive theory of multimedia learning and the social cognitive theory. A total of 240 parents or caregivers of children enrolled in the Maternal and Child Health and Nutrition Cohort Study in Acre (MINA-Brazil) will be recruited by phone and social media. The intervention group will receive persuasive multimedia messages through WhatsApp over 19 weeks, while the waitlist control group will remain in the usual care. The primary outcome is a change in children's BMI in z score. Secondary outcomes are changes in dietary intake and biochemical indicators of the children. Outcome measures will be assessed at baseline and 5 months after randomization in comparison to usual care. The analysis will use an intent-to-treat approach and will be conducted using the statistical package Stata (version 18.0), with a significance level set at P<.05. Paired and unpaired 2-tailed t tests will be applied to compare mean changes in the outcomes.

RESULTS

Data collection started in June 2023, and final measurements are scheduled to be completed in December 2023. The results of the main analysis are expected to be available in 2024.

CONCLUSIONS

This innovative multimedia message intervention holds significant potential for fostering behavioral changes among Amazonian children.

TRIAL REGISTRATION

Brazilian Clinical Trials Registry RBR-5zdnw6t; https://ensaiosclinicos.gov.br/rg/RBR-5zdnw6t.

INTERNATIONAL REGISTERED REPORT IDENTIFIER (IRRID): DERR1-10.2196/54446.

摘要

背景

几十年来，发育迟缓与微量营养素缺乏问题一直困扰着巴西亚马逊地区的儿童。然而，近年来，儿童超重患病率显著上升，尤其是在2019冠状病毒病疫情加剧粮食不安全的背景下。尽管针对这一问题提出的有效解决方案数量有限，但数字干预措施在全球范围内显示出预防肥胖和促进健康饮食的巨大潜力。

目的

本研究旨在描述一种基于家庭的WhatsApp干预方案，该方案专门设计用于调查多媒体信息在预防亚马逊地区学龄儿童体重过度增加和改善健康饮食行为方面的效果。

方法

本研究方案概述了一项基于多媒体学习认知理论和社会认知理论的理论驱动随机对照试验。通过电话和社交媒体招募240名参与阿克里州母婴健康与营养队列研究（巴西MINA）的儿童的家长或照料者。干预组将在19周内通过WhatsApp接收有说服力的多媒体信息，而等待名单对照组将维持常规护理。主要结局是儿童BMI的z评分变化。次要结局是儿童饮食摄入量和生化指标的变化。结局指标将在基线时以及随机分组后5个月与常规护理进行比较时进行评估。分析将采用意向性分析方法，并使用统计软件Stata（版本18.0）进行，显著性水平设定为P<0.05。将应用配对和非配对双尾t检验来比较结局的平均变化。