Korean J Fam Pract 2023; 13(3): 179-186  https://doi.org/10.21215/kjfp.2023.13.3.179
Association between Prediabetes and Meal Patterns Related to Meal Sharing among Korean Young Adults: Eighth Korean National Health and Nutrition Examination Survey, 2019–2020
Saebom Kim1, Sehee Kim1, Youngmin Kim1, Seonmi Seo1, Yu Jin Chung1,*, Sam Cheol Kim1,2
1Department of Family Practice and Community Medicine, Chosun University Hospital; 2Department of Family Practice and Community Medicine, Chosun University College of Medicine, Gwangju, Korea
Yu Jin Chung
Tel: +82-62-220-3534, Fax: +82-62-226-8851
E-mail: nayamerong@naver.com
ORCID: https://orcid.org/0000-0001-5541-0902
Received: April 8, 2023; Revised: August 4, 2023; Accepted: August 7, 2023; Published online: September 20, 2023.
© The Korean Academy of Family Medicine. All rights reserved.

This is an open-access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0) which permits unrestricted noncommercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract
Background: The prevalence of diabetes among young adults is on the rise, and lifestyle modifications during the pre-diabetic stage have proven highly effective in preventing the progression of diabetes. Given the strong association between dietary habits and diabetes, this study aimed to evaluate the effects of communal eating and meal companionship on fasting glucose levels and glycated hemoglobin A1c (HbA1c).
Methods: This study was based on data from the Eighth Korea National Health and Nutrition Examination Survey (KNHANES), 2019–2020. The analysis included 2,306 young Korean adults aged 19 to 39 who have at least 2 or more meals a day, 3 or more times a week.
Results: Compared to the group eating alone 0 times a day, the risk of impaired fasting blood glucose was 0.47 times (odds ratio, 0.470; 95% confidence interval, 0.309–0.717) lower in the group eating alone 2 to 3 times a day, but there was no significant difference in HbA1c.
Conclusion: Among young Korean adults, the risk of impaired fasting blood glucose was significantly lower in the group who ate alone 2–3 times a day compared to the group who mainly shared meals.
Keywords: Meals; Blood Glucose; Prediabetic State; Glycated Hemoglobin

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