文章基本信息

标题：Reported Energy Intake Accuracy Compared to Doubly Labeled Water and Usability of the Mobile Food Record among Community Dwelling Adults
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作者：Carol J. Boushey ; Melissa Spoden ; Edward J. Delp 等
期刊名称：Nutrients
电子版ISSN：2072-6643
出版年度：2017
卷号：9
期号：3
页码：312
DOI：10.3390/nu9030312
语种：English
出版社：MDPI Publishing
摘要：The mobile Food Record (mFR) is an image-based dietary assessment method for mobile devices. The study primary aim was to test the accuracy of the mFR by comparing reported energy intake (rEI) to total energy expenditure (TEE) using the doubly labeled water (DLW) method. Usability of the mFR was assessed by questionnaires before and after the study. Participants were 45 community dwelling men and women, 21–65 years. They were provided pack-out meals and snacks and encouraged to supplement with usual foods and beverages not provided. After being dosed with DLW, participants were instructed to record all eating occasions over a 7.5 days period using the mFR. Three trained analysts estimated rEI from the images sent to a secure server. rEI and TEE correlated significantly (Spearman correlation coefficient of 0.58, p < 0.0001). The mean percentage of underreporting below the lower 95% confidence interval of the ratio of rEI to TEE was 12% for men (standard deviation (SD) ± 11%) and 10% for women (SD ± 10%). The results demonstrate the accuracy of the mFR is comparable to traditional dietary records and other image-based methods. No systematic biases could be found. The mFR was received well by the participants and usability was rated as easy.
关键词：dietary assessment; mobile food record; image-based dietary assessment; doubly labeled water; adults dietary assessment ; mobile food record ; image-based dietary assessment ; doubly labeled water ; adults