INOMED
Vol 3, No 2 (2026): October

Association Between Caffeine Consumption, Sleep Quality, and Academic-Related Stress Among Medical Students

Desasti Gustipraduga (Universitas Sultan Ageng Tirtayasa)
Louisa Ivana Utami (Universitas Sultan Ageng Tirtayasa)
Yuda Nabella Prameswari (Universitas Sultan Ageng Tirtayasa)



Article Info

Publish Date
23 Jul 2026

Abstract

Medical students experience substantial academic demands that increase their risk of developing academic-related stress (ARS). Caffeine is commonly consumed to improve alertness and academic performance, yet excessive intake may adversely affect sleep quality and psychological well-being. This study aimed to examine the associations between caffeine consumption, sleep quality, and academic-related stress among medical students. A cross-sectional analytic study was conducted among 139 medical students. Caffeine intake was assessed using a modified Caffeine Consumption Questionnaire (CCQ), sleep quality was evaluated using the Pittsburgh Sleep Quality Index (PSQI), and academic-related stress was measured using the Academic Related Stressor (ARS) domain of the Medical Student Stressor Questionnaire (MSSQ). Associations between variables were analyzed using the Chi-square test or Fisher's exact test, with statistical significance set at p < 0.05. Most participants were classified as low caffeine consumers (92.8%), with a mean daily caffeine intake of 36.65 ± 38.61 mg. Poor sleep quality was reported by 75.5% of participants, while 70.5% experienced severe to very severe academic-related stress. No significant association was found between caffeine consumption and ARS (p = 1.000). In contrast, poor sleep quality was significantly associated with higher odds of severe ARS (p = 0.031; OR = 2.399; 95% CI: 1.068–5.387). Sleep quality was significantly associated with academic-related stress, whereas caffeine consumption was not. Medical students with poor sleep quality had more than twice the likelihood of experiencing severe academic-related stress, highlighting the importance of promoting healthy sleep habits to support students' psychological well-being. Keywords : Academic-Related Stress, Caffeine Consumption, Medical Students, Sleep Quality, Psychological Well-Being

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Journal Info

Abbrev

inomed

Publisher

Subject

Description

International Journal of Occupational Medicine and Public Health is a scientific publication published by the Medical Science study program. Faculty of Medicine, University of Sultan Ageng Tirtayasa which contains research results related to technology development, innovation and novelty of science ...