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Nutrients 2017, 9(3), 312; doi:10.3390/nu9030312

Reported Energy Intake Accuracy Compared to Doubly Labeled Water and Usability of the Mobile Food Record among Community Dwelling Adults

1
Epidemiology Program, University of Hawaii Cancer Center, Honolulu, HI 96813, USA
2
Department for Structural Advancement and Quality Management in Health Care, Technical University Berlin, Berlin 10632, Germany
3
School of Electrical and Computer Engineering, Purdue University, West Lafayette, IN 47907, USA
4
The Johns Hopkins University Applied Physics Laboratory, Laurel, MD 20723, USA
5
Motorola Mobility LLC, Chicago, IL 60654, USA
6
Department of Medicine, Division of Endocrinology and Metabolism, University of Pittsburgh, Pittsburgh, PA 15213, USA
7
School of Public Health, Curtin University, Perth WA 6845, Australia
*
Author to whom correspondence should be addressed.
Received: 24 January 2017 / Revised: 2 March 2017 / Accepted: 17 March 2017 / Published: 22 March 2017
(This article belongs to the Special Issue Technology Based Approaches to Dietary Intake Assessment)
View Full-Text   |   Download PDF [2362 KB, uploaded 22 March 2017]   |  

Abstract

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. View Full-Text
Keywords: 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
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Boushey, C.J.; Spoden, M.; Delp, E.J.; Zhu, F.; Bosch, M.; Ahmad, Z.; Shvetsov, Y.B.; DeLany, J.P.; Kerr, D.A. Reported Energy Intake Accuracy Compared to Doubly Labeled Water and Usability of the Mobile Food Record among Community Dwelling Adults. Nutrients 2017, 9, 312.

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