First evaluation steps of a new method for dietary intake estimation regarding a list of key food groups in adults and in different sociodemographic and health-related behaviour strata

• Published in: Public health nutrition Vol. 20; no. 15; pp. 2660 - 2669
• Main Author: Béjar, Luis M
• Format: Journal Article
• Language: English
• Published: Cambridge, UK Cambridge University Press 01.10.2017
• Subjects: Accuracy; Adolescent; Adult; Adults; Age; Assessment and Methodology; Cellular telephones; college students; Colleges & universities; Correlation analysis; Correlation coefficient; Correlation coefficients; Diet; diet recall; Diet Records; Dietary intake; Epidemiology; Exercise; Female; females; Food; Food consumption; Food groups; food intake; Food selection; Health Behavior; Health care; human resources; Humans; Internet access; Linear programming; Male; males; Mental Recall; Mobile Applications; mobile telephones; Nutrition Assessment; Portable computers; Preventive medicine; Public health; Recall; Reproducibility of Results; Research Papers; Short term; Sociodemographics; Socioeconomic Factors; Southern European region; Spain; Statistical analysis; statistics; Strata; Students; Studies; Surveys and Questionnaires; Teenagers; Universities; Usability; Validity; Young Adult; Southern European region; Spain; Mobile phone application; FFQ; Dietary assessment; Epidemiological methods; 24 h dietary recall
• DOI: 10.1017/S1368980017001641
• ISSN: 1368-9800; 1475-2727

A new method known as 'current-day dietary recall' (current-day recall) is based on an application for mobile phones called 'electronic 12 h dietary recall' (e-12HR). This new method was designed to rank participants into categories of habitual intake regarding a series of key food groups. The present study compared current-day recall against a previously validated short paper FFQ. Participants recorded the consumption of selected food groups using e-12HR during twenty-eight consecutive days and then filled out a short paper FFQ at the end of the study period. To evaluate the association and agreement between both methods, Spearman's correlation coefficients (SCC), cross-classification analysis and weighted kappa statistics (κ w) were used. Andalusia, Spain, Southern Europe. University students and employees over the age of 18 years. One hundred and eighty-seven participants completed the study (64·2 % female, 35·8 % male). For all particpants, for all food group intakes, the mean SCC was 0·70 (SCC≥0·62 were observed for all strata); the mean percentage of participants cross-classified into categories of 'exact agreement+adjacent' was 90·1 % (percentages≥87·8 % were observed for all strata); and the mean κ w was 0·55 (κ w≥0·53 in ten of the twelve strata). For the whole sample and for all strata thereof, the current-day recall has good agreement with the previously validated short paper FFQ for assessing food group intakes, rendering it a useful method for ranking individuals.