A Stage of Change Theory-Based, Stage-Matched Intervention for Healthy Dietary Intake Among Office Workers in a Low- to Middle-Income Country: Protocol for a Cluster Randomized Trial.

IF 1.5 Q3 HEALTH CARE SCIENCES & SERVICES
Janaka Godevithana, Champa Jayalakshmie Wijesinghe, Millawage Supun Dilara Wijesinghe
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Abstract

Background: An unhealthy diet is a well-established risk factor for the development of noncommunicable diseases, and office workers are at a higher risk of noncommunicable diseases due to their sedentary work style. Stage of change (SOC) theory-based and stage-matched interventions effectively influence dietary and behavior changes. The effectiveness of such interventions in the context of low- and middle-income countries is yet to be assessed.

Objective: This protocol describes a cluster randomized trial planned to evaluate the effectiveness of an intervention for changing dietary behavior among government office workers in the Galle district in Sri Lanka.

Methods: A cluster randomized trial was conducted in 20 clusters divided into intervention and control arms. A cluster was an office with 30 clerical-type workers who were sedentary at work. A stage-matched intervention based on behavior change processes was implemented in the intervention clusters for 3 months. Participants were provided with an intervention matched to their SOC at baseline. Precontemplators and contemplators received awareness-raising and emotional arousal interventions. Others received goal setting and self-monitoring interventions. The SOC and dietary intake were assessed at baseline and the postintervention stage through a staging algorithm, and 24-hour dietary recall was supplemented with a picture guide and computer software. Adherence to the intervention was assessed monthly. We hypothesized that participants would achieve a progressive change in the SOC and healthy dietary intake in the intervention clusters compared to the control clusters.

Results: By December 2024, the planned intervention was completed. Data analysis on the effectiveness of the intervention is to be completed and published in 2025.

Conclusions: This protocol reports a stage-matched intervention based on SOC theory, enriching the current knowledge base with new evidence from office workers in a low- to middle-income country.

Trial registration: Sri Lanka Clinical Trials Registry SLCTR/2020/025; https://slctr.lk/trials/slctr-2020-025.

International registered report identifier (irrid): DERR1-10.2196/70293.

基于变化阶段理论的阶段匹配干预中低收入国家办公室工作人员健康饮食摄入:一项聚类随机试验方案
背景:不健康的饮食是非传染性疾病发展的一个公认的危险因素,而办公室工作人员由于久坐不动的工作方式,患非传染性疾病的风险更高。基于变化阶段(SOC)理论和阶段匹配的干预有效地影响饮食和行为改变。这些干预措施在低收入和中等收入国家的有效性还有待评估。目的:本方案描述了一项旨在评估斯里兰卡加勒地区政府办公室工作人员饮食行为改变干预措施有效性的聚类随机试验。方法:采用整群随机试验方法,将20个组分为干预组和对照组。“集群”指的是一间办公室,里面有30名坐着工作的文职人员。基于行为改变过程的阶段匹配干预在干预集群中实施了3个月。为参与者提供与其基线SOC相匹配的干预措施。预观者和观行者接受了意识提升和情绪唤醒干预。其他人则接受目标设定和自我监控干预。通过分期算法评估基线和干预后阶段的SOC和膳食摄入量,并辅以图片指南和计算机软件进行24小时饮食回忆。每月对干预的依从性进行评估。我们假设,与对照组相比,干预组的参与者在SOC和健康饮食摄入方面会实现渐进式变化。结果:到2024年12月,计划干预完成。关于干预措施有效性的数据分析将于2025年完成并公布。结论:该方案报告了一种基于SOC理论的阶段匹配干预,通过来自中低收入国家办公室工作人员的新证据丰富了当前的知识库。试验注册:斯里兰卡临床试验注册中心SLCTR/2020/025;https://slctr.lk/trials/slctr-2020-025.International注册报告标识符(irrid): DERR1-10.2196/70293。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
CiteScore
2.40
自引率
5.90%
发文量
414
审稿时长
12 weeks
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