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A New Mobile Phone-Based Tool for Assessing Energy and Certain Food Intakes in Young Children: A Validation Study
Linkoping Univ, Dept Clin & Expt Med, Linkoping, Sweden.;Karolinska Inst, Dept Biosci & Nutr, S-14183 Huddinge, Sweden..ORCID iD: 0000-0003-3571-1497
Karolinska Inst, Dept Med Epidemiol & Biostat, Stockholm, Sweden..
Karolinska Inst, Inst Enviromental Med, Stockholm, Sweden..
Karolinska Inst, Dept Med Epidemiol & Biostat, Stockholm, Sweden..ORCID iD: 0000-0003-2046-5641
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2015 (English)In: JMIR mhealth and uhealth, E-ISSN 2291-5222, Vol. 3, no 2, article id e38Article in journal (Refereed) Published
Abstract [en]

Background: Childhood obesity is an increasing health problem globally. Obesity may be established already at pre-school age. Further research in this area requires accurate and easy-to-use methods for assessing the intake of energy and foods. Traditional methods have limited accuracy, and place large demands on the study participants and researchers. Mobile phones offer possibilities for methodological advancements in this area since they are readily available, enable instant digitalization of collected data, and also contain a camera to photograph pre- and post-meal food items. We have recently developed a new tool for assessing energy and food intake in children using mobile phones called the Tool for Energy Balance in Children (TECH). Objective: The main aims of our study are to (1) compare energy intake by means of TECH with total energy expenditure (TEE) measured using a criterion method, the doubly labeled water (DLW) method, and (2) to compare intakes of fruits and berries, vegetables, juice, and sweetened beverages assessed by means of TECH with intakes obtained using a Web-based food frequency questionnaire (KidMeal-Q) in 3 year olds. Methods: In this study, 30 Swedish 3 year olds were included. Energy intake using TECH was compared to TEE measured using the DLW method. Intakes of vegetables, fruits and berries, juice, as well as sweetened beverages were assessed using TECH and compared to the corresponding intakes assessed using KidMeal-Q. Wilcoxon matched pairs test, Spearman rank order correlations, and the Bland-Altman procedure were applied. Results: The mean energy intake, assessed by TECH, was 5400 kJ/24h (SD 1500). This value was not significantly different (P=.23) from TEE (5070 kJ/24h, SD 600). However, the limits of agreement (2 standard deviations) in the Bland-Altman plot for energy intake estimated using TECH compared to TEE were wide (2990 kJ/24h), and TECH overestimated high and underestimated low energy intakes. The Bland-Altman plots for foods showed similar patterns. The mean intakes of vegetables, fruits and berries, juice, and sweetened beverages estimated using TECH were not significantly different from the corresponding intakes estimated using KidMeal-Q. Moderate but statistically significant correlations (rho=.42-.46, P=.01-.02) between TECH and KidMeal-Q were observed for intakes of vegetables, fruits and berries, and juice, but not for sweetened beverages. Conclusion: We found that one day of recordings using TECH was not able to accurately estimate intakes of energy or certain foods in 3 year old children.

Place, publisher, year, edition, pages
JMIR PUBLICATIONS, INC , 2015. Vol. 3, no 2, article id e38
Keywords [en]
cell phone, digital camera, food intake, energy intake, child, DLW, FFQ
National Category
Health Sciences
Identifiers
URN: urn:nbn:se:mdh:diva-40675DOI: 10.2196/mhealth.3670ISI: 000359791800004PubMedID: 25910494OAI: oai:DiVA.org:mdh-40675DiVA, id: diva2:1246116
Available from: 2018-09-06 Created: 2018-09-06 Last updated: 2018-09-06Bibliographically approved

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Bälter, Katarina

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