AM Rangan|Siobhan O'Connor|Giannelli|Mlh Yap|LM Tang|Rajshri Roy|Jcy Louie|Lana Hebden|Judy Kay|Margaret Allman?Farinelli
Electronic Dietary Intake Assessment (e-DIA): Comparison of a Mobile Phone Digital Entry App for Dietary Data Collection With 24-Hour Dietary Recalls
University of Sydney|University of Sydney|University of Sydney|University of Sydney|University of Sydney|University of Sydney|University of Sydney|University of Sydney|University of Sydney|University of Sydney
background electronic dietary intake assessment edia digital entry food record mobile phone app developed measure energy nutrient intake prospectively used monitoring population intakes intervention studies young adults objective objective assess relative validity edia dietary assessment tool energy nutrient intakes using 24hour dietary recall reference method methods university students aged 19 24 years recorded food drink intake edia five days consecutively completed 24hour dietary recalls three random days 5day study period mean differences energy macro micronutrient intakes evaluated methods using paired tests wilcoxon signedrank tests correlation coefficients calculated unadjusted energyadjusted deattenuated values blandaltman plots crossclassification quartiles used assess agreement two methods results eighty participants completed study 38 male significant differences found two methods mean intakes energy nutrients deattenuated correlation coefficients ranged 055 079 mean 068 blandaltman plots showed wide limits agreement methods without obvious bias crossclassification adjacent quartiles ranged 75 93 mean 85 conclusions edia shows potential dietary intake assessment tool group level good ranking agreement energy nutrients