Article
The e-EPIDEMIOLOGY Mobile Phone App for Dietary Intake Assessment: Comparison with a Food Frequency Questionnaire
Author/s | Béjar Prado, Luis María
Northrop Sharp, Brett García Perea, María Dolores |
Department | Universidad de Sevilla. Departamento de Medicina Preventiva y Salud Pública |
Publication Date | 2016 |
Deposit Date | 2021-04-13 |
Published in |
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Abstract | Background: There is a great necessity for new methods of evaluation of dietary intake that overcome the limitations of traditional self-reporting methods.
Objective: The objective of this study was to develop a new method, ... Background: There is a great necessity for new methods of evaluation of dietary intake that overcome the limitations of traditional self-reporting methods. Objective: The objective of this study was to develop a new method, based on an app for mobile phones called e-EPIDEMIOLOGY, which was designed to collect individual consumption data for a series of foods/drinks, and to compare this app with a previously validated paper food frequency questionnaire (FFQ). Methods: University students >18 years of age recorded the consumption of certain foods/drinks using EPIDEMIOLOGY during 28 consecutive days and then filled out a paper FFQ at the end of the study period. To evaluate the agreement between the categories of habitual consumption for each of the foods/drinks included in the study, cross-classification analysis and a weighted kappa statistic were used. Results: A total of 119 participants completed the study (71% female, 85/119; 29% male, 34/119). Cross-classification analysis showed that 79.8% of the participants were correctly classified into the same category and just 1.1% were misclassified into opposite categories. The average weighted kappa statistic was good (κ=.64). Conclusions: The results indicate that e-EPIDEMIOLOGY generated ranks of dietary intakes that were highly comparable with the previously validated paper FFQ. However, it was noted that further testing of e EPIDEMIOLOGY is required to establish its wider utility. |
Citation | Béjar Prado, L.M., Northrop Sharp, B. y García Perea, M.D. (2016). The e-EPIDEMIOLOGY Mobile Phone App for Dietary Intake Assessment: Comparison with a Food Frequency Questionnaire. Jmir Research Protocols, 5 (4) |
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