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Comparison of Sleep Duration, Social Jetlag, and Subjective Sleep Disturbance in Rotating Shift Nurses According to the Chronotype

순환교대근무 간호사의 일주기유형에 따른 근무조별 수면시간, 사회적 시차, 주관적 수면장애 비교

  • Choi, Su Jung (Graduate School of Clinical Nursing Science, Sungkyunkwan University) ;
  • Joo, Eun Yeon (Department of Neurology, Neuroscience Center, Samsung Medical Center, Sungkyunkwan University School of Medicine) ;
  • Kim, Kyeong Sug (Graduate School of Clinical Nursing Science, Sungkyunkwan University)
  • 최수정 (성균관대학교 임상간호대학원) ;
  • 주은연 (성균관대학교 신경과학교실, 삼성서울병원 뇌신경센터) ;
  • 김경숙 (성균관대학교 임상간호대학원)
  • Received : 2021.07.23
  • Accepted : 2021.08.26
  • Published : 2021.08.31

Abstract

Purpose: The purpose of this study was to investigate the sleep duration, social jetlag (SJL), and subjective sleep disturbance according to the individual chronotype in rotating shift nurses. Methods: A total of 344 rotating 3-shift nurses (mean age 28.67 years) were recruited at one university affiliated hospital. They completed the following questionnaires, which were used to assess their chronotype and sleep: the morningness-eveningness questionnaire (MEQ), self-reported sleep duration of work days (SDWshift) and free days (SDFshift) in each shift (day [D], evening [E], night [N]), and sleep disturbance (Insomnia severity index, ISI). SJLshift was calculated as the difference in midsleep (MS=sleep onset+1/2 sleep duration) between work days (MSW) and free days (MSF). Results: Subjects were divided into 3 chronotype groups according to the MEQ; morning (MG, 4.4%) intermediate (IG, 57.8%), and evening groups (EG, 37.8%). SDWD was shortest (4.68 hr) and SDFE was longest (8.93 hr) in the EG. SJLD was longest in the EG (3.77 hr), and SJLN was longest in the MG (7.37 hr). The prevalence of sleep disturbance was 33.3% (MG), 29.6% (IG), and 40.0% (EG), respectively, without any statistical significance. Conclusion: In order to improve the sleep of shift workers, it is recommended that the evening chronotypes should reduce the day shifts and the morning chronotypes should reduce the night shifts. We also propose a study to determine whether these shift assignments can improve the sleep in shift nurses.

Keywords

References

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