Meroni Alice, Jualim Nyssa, Fuller Nicholas
The Boden Institute of Obesity, Nutrition, Exercise & Eating Disorders, Charles Perkins Centre, University of Sydney.
The Boden Institute of Obesity, Nutrition, Exercise & Eating Disorders, Charles Perkins Centre, University of Sydney;
J Vis Exp. 2018 Sep 18(139):57923. doi: 10.3791/57923.
Different methods can be used in research to assess dietary intake, many of which are still paper-based. Written estimated food diaries are often utilized in clinical trials, despite being a burden for both study participants and researchers. This method requires participant literacy, it is time consuming, labor intensive, and can easily lead to under-reporting. With advancements in technology, there is a growing interest in electronic diaries that automate the dietary assessment process. These are focused on improving accuracy, reducing both time and cost and providing users with a visual and more enjoyable experience. The methodology presented here aimed to validate the 'Boden Food Plate', a novel web-based platform for self-recording of food and drink items, compared to a traditional estimated food diary. The application was also rated on a satisfaction scale by study participants using a paper-based questionnaire. Sixty-seven participants completed the dietary measures on both the three-day electronic and paper food diaries. For the analysis, only dietary data completed at both study time points (baseline and week six) was utilized. Despite small mean differences between dietary data collection methods, Bland Altman analysis showed fairly wide 95% limits of agreement between the electronic platform and the written estimated food diary and there were few cases which did not fall within the 95% confidence intervals. Overall, participants found the electronic food diary to be more fun than the paper method and as easy to use as hard copy diaries. The new platform has potential as a self-recording tool for the collection of dietary data, particularly when utilized in clinical trial settings. However, further validation studies are needed to improve the validity of this novel electronic dietary data collection tool.
研究中可以使用不同的方法来评估饮食摄入量，其中许多方法仍基于纸质记录。书面估计食物日记在临床试验中经常被使用，尽管这对研究参与者和研究人员来说都是一项负担。这种方法要求参与者具备读写能力，耗时、费力，而且很容易导致报告不足。随着技术的进步，人们对能够使饮食评估过程自动化的电子日记越来越感兴趣。这些电子日记专注于提高准确性、减少时间和成本，并为用户提供直观且更愉悦的体验。本文介绍的方法旨在验证“博登食物盘”，这是一个用于自行记录食物和饮料项目的新型基于网络的平台，并与传统的估计食物日记进行比较。研究参与者还使用纸质问卷对该应用程序进行了满意度评分。67名参与者在为期三天的电子和纸质食物日记上都完成了饮食测量。在分析中，仅使用了在两个研究时间点（基线和第六周）都完成的饮食数据。尽管饮食数据收集方法之间的平均差异较小，但布兰德-奥特曼分析显示，电子平台和书面估计食物日记之间的95%一致性界限相当宽，并且很少有案例不在95%置信区间内。总体而言，参与者发现电子食物日记比纸质方法更有趣，并且与硬拷贝日记一样易于使用。这个新平台有潜力作为收集饮食数据的自行记录工具，特别是在临床试验环境中使用时。然而，需要进一步的验证研究来提高这种新型电子饮食数据收集工具的有效性。
