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KMID : 0607520170250020166
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Korean Journal of Psychosomatic Medicine
2017 Volume.25 No. 2 p.166 ~ p.175
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Comparisons of Subjective and Actigraphic Measurements of Sleep between Shift-working and Daytime Psychiatric Nurses
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Kwak Jun
Yoon Bo-Hyun
Jeon Bong-Hee
Shee Young-Hwa
Song Je-Heon
Park Su-Hee
Kim Kyung-Min
Jung Ha-Ran
Jeong Yu-Ran
Park Jin-Hyeong
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Abstract
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Objectives: Shiftwork is known to be one of the common causes of sleep and health problems and finally causes the decreased quality of life. The purpose of this study was to investigate the sleep patterns of shift-working and daytime psychiatric nurses using actigraphy and compare it with subjective assessment for sleep.
Methods: Twenty-three shift-working and 25 daytime nurses were enrolled. They rated their sleep quality using Pittsburgh Sleep Quality Index(PSQI) and other self-rating scales were measured for psychosocial aspects. Actigraphy was applied to the subjects for a total of 7 days to measure the sleep parameters. They also wrote sleep diaries during the period of wearing actigraphy. Sleep-related parameters of actigraphy, global score and components of PSQI, and the results of other self-rating scales were compared between shift-working and daytime nurses.
Results: Although the global score of PSQI did not show significant difference, the PSQI components showed significant differences between two groups: the shift-working nurses showed lower sleep quality, more sleep disturbance and hypnotic medication use, and worsened daytime dysfunction than daytime nurses. The shift-working nurses showed significantly shorter total time in bed and total sleep time, lower sleep efficiency, and longer average awakening time than those of daytime nurses in actigraphy.
Conclusions: The results showed that shift-working nurses experienced more sleep disturbances in both subjective and objective aspects of sleep than daytime nurses. This study also suggests that actigraphy may be useful to measure the objective aspects of sleep that are difficult to assess with subjective questionnaires alone.
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KEYWORD
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Shift-working nurses, Sleep problem, Actigraphy, PSQI
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