Electronic Dietary Intake Assessment (e-DIA): Comparison of a Mobile Phone Digital Entry App for Dietary Data Collection With 24-Hour Dietary Recalls

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dc.contributor.author Rangan, AM en
dc.contributor.author O'Connor, S en
dc.contributor.author Giannelli, V en
dc.contributor.author Yap, MLH en
dc.contributor.author Tang, LM en
dc.contributor.author Roy, Rajshri en
dc.contributor.author Louie, JCY en
dc.contributor.author Hebden, L en
dc.contributor.author Kay, J en
dc.contributor.author Allman-Farinelli, M en
dc.date.accessioned 2016-12-19T03:43:08Z en
dc.date.issued 2015 en
dc.identifier.citation JMIR mHealth and uHealth, 2015, 3 (4), Article number e98 en
dc.identifier.uri http://hdl.handle.net/2292/31447 en
dc.description.abstract Background: The electronic Dietary Intake Assessment (e-DIA), a digital entry food record mobile phone app, was developed to measure energy and nutrient intake prospectively. This can be used in monitoring population intakes or intervention studies in young adults. Objective: The objective was to assess the relative validity of e-DIA as a dietary assessment tool for energy and nutrient intakes using the 24-hour dietary recall as a reference method. Methods: University students aged 19 to 24 years recorded their food and drink intake on the e-DIA for five days consecutively and completed 24-hour dietary recalls on three random days during this 5-day study period. Mean differences in energy, macro-, and micronutrient intakes were evaluated between the methods using paired t tests or Wilcoxon signed-rank tests, and correlation coefficients were calculated on unadjusted, energy-adjusted, and deattenuated values. Bland-Altman plots and cross-classification into quartiles were used to assess agreement between the two methods. Results: Eighty participants completed the study (38% male). No significant differences were found between the two methods for mean intakes of energy or nutrients. Deattenuated correlation coefficients ranged from 0.55 to 0.79 (mean 0.68). Bland-Altman plots showed wide limits of agreement between the methods but without obvious bias. Cross-classification into same or adjacent quartiles ranged from 75% to 93% (mean 85%). Conclusions: The e-DIA shows potential as a dietary intake assessment tool at a group level with good ranking agreement for energy and all nutrients. en
dc.description.uri https://www.ncbi.nlm.nih.gov/pubmed/26508282 en
dc.language English en
dc.publisher JMIR Publications en
dc.relation.ispartofseries JMIR mHealth and uHealth en
dc.rights Items in ResearchSpace are protected by copyright, with all rights reserved, unless otherwise indicated. Previously published items are made available in accordance with the copyright policy of the publisher. Details obtained from http://www.sherpa.ac.uk/romeo/issn/2291-5222/ http://mhealth.jmir.org/2015/4/e98/#Copyright en
dc.rights.uri https://researchspace.auckland.ac.nz/docs/uoa-docs/rights.htm en
dc.rights.uri https://creativecommons.org/licenses/by/2.0/ en
dc.title Electronic Dietary Intake Assessment (e-DIA): Comparison of a Mobile Phone Digital Entry App for Dietary Data Collection With 24-Hour Dietary Recalls en
dc.type Journal Article en
dc.identifier.doi 10.2196/mhealth.4613 en
pubs.issue 4 en
pubs.volume 3 en
dc.description.version VoR - Version of Record en
dc.identifier.pmid 26508282 en
pubs.author-url http://mhealth.jmir.org/2015/4/e98/ en
pubs.publication-status Published en
dc.rights.accessrights http://purl.org/eprint/accessRights/OpenAccess en
pubs.subtype Article en
pubs.elements-id 539682 en
pubs.org-id Medical and Health Sciences en
pubs.org-id Medical Sciences en
pubs.org-id Nutrition en
dc.identifier.eissn 2291-5222 en
pubs.number e98 en
pubs.record-created-at-source-date 2016-12-19 en
pubs.online-publication-date 2015-10-27 en
pubs.dimensions-id 26508282 en

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