Abstract 6475: Compatibility of chatbot-based mobile and paper-based FFQs in participants with colorectal or gastric cancer screening

Abstract

Abstract Background: The food frequency questionnaire (FFQ) is the most commonly used method to assess the usual diet of groups and individuals. Paper or electronic FFQ consists of frequencies and portion sizes of foods and beverages. We developed a chatbot-based mobile FFQ, by embedding the validated FFQs in KakaoTalk, Korea’s most popular mobile messenger. We examined the compatibility of the paper and chatbot-based mobile FFQs in participants who underwent cancer screening endoscopy. Method: A total of 50 men and 45 women aged 24 to 79 were recruited from Dongguk University Ilsan Hospital between April and August 2022. Participants underwent gastroscopy or colonoscopy for cancer screening. They completed both the paper and chatbot-based mobile FFQs. Log-transformed intakes of energy and nutrients were compared using the Pearson correlation coefficient. We also calculated the Cohen’s Kappa coefficients and evaluated Bland-Altman plots and the percent agreement from cross-classification to assess the compatibility. Results: The Pearson correlation coefficients of energy and energy-adjusted nutrients ranged from 0.74 (niacin) to 0.90 (vitamin A), and the median of coefficients was 0.85. Cohen’s kappa coefficient ranged from 0.56 (sodium) to 0.75 (n-6 fatty acid). In the Bland-Altman plots, most data were located between the lower and upper limits of agreement. The percentages of participants classified into the same and adjacent quartiles were between 88% and 98% for energy-adjusted nutrients. Conclusions: Our study suggests a good compatibility of paper and chatbot-based mobile FFQs. The chatbot-based mobile FFQ may provide comparable intake rankings and be used to evaluate the association between dietary intake and disease risk in longitudinal studies. Citation Format: Eui Yeon Lim, Yun Jeong Lim, Sang Hoon Kim, Woongsup Kim, Jung Eun Lee. Compatibility of chatbot-based mobile and paper-based FFQs in participants with colorectal or gastric cancer screening [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2023; Part 1 (Regular and Invited Abstracts); 2023 Apr 14-19; Orlando, FL. Philadelphia (PA): AACR; Cancer Res 2023;83(7_Suppl):Abstract nr 6475.