Evening chronotypes experience longer sleep latency compared to morning chronotypes.
Variability in weekend sleep schedules is greater among Evening chronotypes.
Gender differences in stress levels and academic performance are minimal and not statistically significant.
Simplified
BACKGROUND: , which denotes an individual's preference for morning or evening activity patterns, has been linked to variations in cognitive performance, sleep behavior, and stress levels. This study investigates the association between chronotype, perceived stress, and academic performance among first-year medical students.
METHODS: A cross-sectional descriptive study was conducted among 148 medical students at a private university. Chronotype was assessed using the Munich Chronotype Questionnaire (MCTQ), and perceived stress was measured using the (PSS). Academic performance was categorized into "Excellent" (marks > 65%) and "Average" (marks < 55%). Statistical analyses included independent t-tests, chi-square tests to evaluate differences and associations.
RESULTS: Morning chronotypes demonstrated significantly higher academic performance, with 49.1% in the "Excellent" group compared to 29% of Evening chronotypes (p =.03). Perceived stress scores were significantly higher among Evening chronotypes (24.9 ± 12.1) than Morning chronotypes (20.7 ± 9.3, p =.028). Furthermore, Evening chronotypes exhibited longer sleep latency (41.17 ± 13.35 min vs. 14.49 ± 12.14 min, p <.001) and greater variability in weekend sleep schedules (p <.001). Gender differences in stress and academic performance were minimal and not statistically significant.
CONCLUSION: Chronotype significantly affects academic performance and stress levels among medical students, with Morning types performing better academically experiencing less stress. Tailored strategies like flexible scheduling and sleep hygiene promotion can help Evening chronotypes overcome challenges, improving academic outcomes and psychological well-being.
Key numbers
49.1%
Higher Academic Performance
Percentage of Excellent performers among Morning .
24.9 ± 12.1
Higher Perceived Stress Score
Average stress score for Evening .
41.17 ± 13.35 min
Longer Sleep Latency
Average sleep latency for Evening .
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Declarations. Ethics approval and consent to participate: The study proposal was presented to the Institute Ethics Committee (IEC) of Kalinga Institute of Medical Sciences, KIIT Deemed-to-be-University, Bhubaneswar and was approved by the IEC (IEC Approval Certificate Reference No.- KIIT/KIMS/IEC/42/2019). The research carried out on the human data was in adherence to the Declaration of Helsinki. Informed consent was taken from all the participants in the study and data was collected only after the participants consented. Consent for publication: Not applicable. Competing interests: The authors declare no competing interests.
