School of Health Sciences, College of Health, Medicine and Wellbeing, University of Newcastle, University Drive, Callaghan2308, Australia.
Priority Research Centre for Physical Activity and Nutrition, University of Newcastle, Callaghan, Australia.
Public Health Nutr. 2023 Jun;26(6):1293-1305. doi: 10.1017/S1368980023000253. Epub 2023 Feb 9.
Web-based dietary interventions could support healthy eating. The Advice, Ideas and Motivation for My Eating (Aim4Me) trial investigated the impact of three levels of personalised web-based dietary feedback on diet quality in young adults. Secondary aims were to investigate participant retention, engagement and satisfaction.
Randomised controlled trial.
Web-based intervention for young adults living in Australia.
18-24-year-olds recruited across Australia were randomised to Group 1 (control: brief diet quality feedback), Group 2 (comprehensive feedback on nutritional adequacy + website nutrition resources) or Group 3 (30-min dietitian consultation + Group 2 elements). Australian Recommended Food Score (ARFS) was the primary outcome. The ARFS subscales and percentage energy from nutrient-rich foods (secondary outcomes) were analysed at 3, 6 and 12 months using generalised linear mixed models. Engagement was measured with usage statistics and satisfaction with a process evaluation questionnaire.
Participants ( 1005, 85 % female, mean age 21·7 ± 2·0 years) were randomised to Group 1 ( 343), Group 2 ( 325) and Group 3 ( 337). Overall, 32 (3 %), 88 (9 %) and 141 (14 %) participants were retained at 3, 6 and 12 months, respectively. Only fifty-two participants (15 % of Group 3) completed the dietitian consultation. No significant group-by-time interactions were observed ( > 0·05). The proportion of participants who visited the thirteen website pages ranged from 0·6 % to 75 %. Half (Group 2 = 53 %, Group 3 = 52 %) of participants who completed the process evaluation (Group 2, 111; Group 3, 90) were satisfied with the programme.
Recruiting and retaining young adults in web-based dietary interventions are challenging. Future research should consider ways to optimise these interventions, including co-design methods.
基于网络的饮食干预措施可以支持健康饮食。“针对我的饮食的建议、想法和动机（Aim4Me）”试验研究了三种个性化网络饮食反馈水平对年轻成年人饮食质量的影响。次要目标是调查参与者的保留率、参与度和满意度。
随机对照试验。
针对澳大利亚年轻成年人的基于网络的干预措施。
在澳大利亚各地招募的 18-24 岁的年轻人被随机分配到第 1 组（对照组：简要的饮食质量反馈）、第 2 组（营养充足的综合反馈+网站营养资源）或第 3 组（30 分钟营养师咨询+第 2 组的元素）。澳大利亚推荐食品评分（ARFS）是主要结果。ARFS 亚量表和来自营养丰富食物的能量百分比（次要结果）在 3、6 和 12 个月时使用广义线性混合模型进行分析。参与度通过使用统计数据进行衡量，满意度通过过程评估问卷进行衡量。
参与者（1005 人，85%为女性，平均年龄 21.7±2.0 岁）被随机分配到第 1 组（343 人）、第 2 组（325 人）和第 3 组（337 人）。总体而言，分别有 32 人（3%）、88 人（9%）和 141 人（14%）在 3、6 和 12 个月时保留下来。只有 52 名参与者（第 3 组的 15%）完成了营养师咨询。未观察到组间时间的显著相互作用（>0.05）。访问 13 个网站页面的参与者比例从 0.6%到 75%不等。完成方案的参与者中有一半（第 2 组为 53%，第 3 组为 52%）对该方案表示满意（第 2 组，111 人；第 3 组，90 人）。
招募和保留参与基于网络的饮食干预措施的年轻成年人具有挑战性。未来的研究应考虑优化这些干预措施的方法，包括共同设计方法。
