[Relationship between sleep-wake circadian chronotype and anxiety and depression of medical students in a university in Wuhu City in 2020].

Jun 20, 2022Wei sheng yan jiu = Journal of hygiene research

Sleep-wake patterns linked to anxiety and depression in medical students at a Wuhu university in 2020

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Abstract

Of 2231 medical students, 59.84% were identified as having an evening circadian chronotype.

Evening chronotype is associated with a higher likelihood of anxiety (adjusted odds ratio 1.403) and depression (adjusted odds ratio 1.639) compared to intermediate chronotype.
The detection rates of anxiety and depression among medical students were 12.86% and 14.12%, respectively.
A combined presence of anxiety and depression was found in 9.59% of students.
The majority of medical students displayed an evening chronotype, with only 2.24% identified as morning chronotype.

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OBJECTIVE: To explore the circadian rhythm of sleep-wake and its relationship with anxiety and depression among medical students.

METHODS: A stratified cluster random sampling method was adopted in this study, 2231 medical students in grades 1 to 3 from a medical college in Wuhu City(1004 boys and 1227 girls, aged(19.09±1.13) years) were selected in November 2020. The sleep wake circadian chronotype and mental health of medical students were evaluated by the Morningness-Eveningness Questionnaire 19(MEQ-19), the Patient Health Questionnaire 2(PHQ-2), and the Generalized Anxiety Disorder scale(GAD-2), respectively.

RESULTS: The detection rates of evening chronotype, intermediate circadian chronotype, and morning chronotype were 59.84%(n=1335), 37.92%(n=846), and 2.24%(n=50), respectively. The detection rates of anxiety, depression, and anxiety combined with depression were 12.86%(n=287), 14.12%(n=315), and 9.59%(n=214), respectively. After adjusting for gender, age, grade, class performance in the last half semester, and learning burden, the result of multivariate logistic regression analysis showed that compared with medical students with intermediate circadian chronotype, medical students with evening chronotype were more likely to have anxiety(OR_(adj. )=1.403, 95% CI 1.066-1.846, P=0.016) and depression(OR_(adj. )=1.639, 95% CI 1.251-2.146, P < 0.001).

CONCLUSION: The detection rate of anxiety and depression in medical students is high. The circadian chronotype of medical students is mainly evening chronotype, which is a risk factor affecting anxiety and depression among medical students.

[Relationship between sleep-wake circadian chronotype and anxiety and depression of medical students in a university in Wuhu City in 2020].

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