Sleep Med Psychophysiol.  2022 Jun;29(1):21-28.

Association Between Chronotype, Sleep Quality and Resilience as Well as Anxiety Among Medical Students

Affiliations
  • 1Department of Psychiatry, Gyeongsang National University Hospital, Jinju, Korea
  • 2Department of Psychiatry, Gyeongsang National University Changwon Hospital, Changwon, Korea
  • 3Department of Psychiatry, Gyeongsang National University College of Medicine, Jinju, Korea

Abstract


Objectives
Our study aimed to investigate the relationship between the anxiety at first year and chronotype and sleep quality at third year in medical students. We also investigated the association between sleep quality, chronotype, depression and resilience at third year.
Methods
Fifty two medical students (36 males, 69%, aged 21 ± 0.93) in first year, and forty four medical students (31 males, 70.5%, aged 23.05 ± 0.99) at third year answered Beck Depression Inventory 2, Beck anxiety inventory, Insomnia severity index-K, Composite scale of morningness and Conner-Davidson Resilience scale-10. Multiple linear regression analysises were performed to identify predictors of chronotype, sleep quality and resilience.
Results
Higher anxiety (β = -0.434, p = 0.006) at first year was significant predictor of eveningness at third year, while lower anxiety score (β = 0.606, p < 0.001) at first year was significant predictor of sleep quality at third year. Lower sleep quality (β = -0.314, p = 0.042) and eveningness (β = 0.315, p = 0.041) were associated with low resilience at third year. Also, Lesser depression (β = -0.717, p < 0.001) was associated with higher resilience at third year.
Conclusion
Our study showed that higher anxiety in first year had significantly related with eveningness and poor sleep quality at third year. In addition, higher sleep quality, morningness and less depression had significantly associated with better resilience at third year.

Keyword

Anxiety; Chronotype; Depressionl; Medical students; Resilience; Sleep quality
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