Evaluation of Type 2 Diabetes Risk in Adults According to Chronotype

Objective: This study aims to evaluate the risk of type 2 diabetes mellitus (T2DM) in adult individuals based on their chronotype characteristics. Methods: The study included 266 volunteer adult individuals living. Data collection involved a questionnaire that included lifestyle characteristics and anthropometric measurements, the Morningness- Eveningness Questionnaire (MEQ) to determine chronotypes, and the Finnish Diabetes Risk Score (FINDRISC) to assess the risk of T2DM. Results: The proportion of evening types is higher among alcohol users (20.8%) compared to nonusers (7.5%) (P = .006). The proportion of evening types is higher among individuals with sleep problems (22.5%) compared to those without sleep problems (8.0%) (P = .016). The MEQ scores showed a significant positive correlation with age (r = 0.213, P < .01), whereas no significant correlation was found between MEQ scores and FINDRISC or body mass index (BMI) (P > .05). According to the binary logistic regression analysis, significant risk factors affecting FINDRISC scores are age, gender, and BMI (odds ratio (OR) = 1.073, 95% CI = 1.021-1.128, P = .006; OR = 1.431, OR = 0.246, 95% CI = 0.087-0.700, P = .009, 95% CI = 1.262-1.622, P < .001, respectively). Chronotype, sleep quality, smoking, alcohol consumption, general appetite, and skipping meals do not have a statistically significant effect on FINDRISC scores (P > .05). Conclusion: The relationship between chronotype and metabolic risk is complex and may be influenced by population characteristics, measurement tools, and mediating behavioral factors. Longitudinal and larger population studies are needed to better understand this relationship. Cite this article as: Tatar T, Zengin FH. Evaluation of type 2 diabetes risk in adults according to chronotype. Endocrinol Res Pract. 2026;30(1):17-22.