Reported Energy Intake Accuracy Compared to Doubly Labeled Water and Usability of the Mobile Food Record among Community Dwelling Adults.
Reported Energy Intake Accuracy Compared to Doubly Labeled Water and Usability of the Mobile Food Record among Community Dwelling Adults.
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DOI：
10.3390/nu9030312
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发表时间：
2017-03-22
期刊：
影响因子：
5.9
通讯作者：
Kerr DA
中科院分区：
文献类型：
--
作者：
Boushey CJ;Spoden M;Delp EJ;Zhu F;Bosch M;Ahmad Z;Shvetsov YB;DeLany JP;Kerr DA
移动食物记录（mFR）是一种基于图像的移动设备饮食评估方法。本研究的主要目的是通过使用双标记水（DLW）法比较报告的能量摄入（rEI）和总能量消耗（TEE）来检验mFR的准确性。在研究前后分别通过问卷对mFR的可用性进行评估。参与者为45名21-65岁的社区居民。为他们提供了打包的饭菜和零食，并鼓励他们补充平时没有提供的食物和饮料。在服用DLW后，参与者被要求使用mFR记录7.5天内的所有进食情况。三名训练有素的分析师根据发送到安全服务器的图像估计了rEI。rEI与TEE显著相关（Spearman相关系数为0.58,p < 0.0001）。低于rEI / TEE比值95%置信区间的平均漏报率男性为12%（标准差（SD）±11%），女性为10% （SD±10%）。结果表明，mFR的准确性可与传统的饮食记录和其他基于图像的方法相媲美。没有发现系统性偏差。mFR得到了参与者的好评，可用性被评为简单。
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.