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KMID : 1009020150130020201
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Clinical Psychopharmacology and Neuroscience
2015 Volume.13 No. 2 p.201 ~ p.208
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The Relationship between Chronotype and Sleep Quality in Korean Firefighters
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Yun Ji-Ae
Ahn Yeon-Soon
Jeong Kyoung-Sook
Joo Eun-Jeong
Choi Kyeong-Sook
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Abstract
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Objective : We examined the relationship between chronotype and sleep disturbance, and assessed various factors that might be associated with sleep disturbance in Korean firefighters.
Methods : Self-administered questionnaires assessing chronotype, depression, alcohol use, posttraumatic stress disorder (PTSD), stress response and sleep quality were examined in 515 firefighters.
Results : Evening type firefighters more reported depression, alcohol use, PTSD, stress response and sleep disturbance. Also evening chronotype was the most significant risk factor for poor sleep quality (odds ratio [OR], 4.812; 95% confidence interval [CI], 2.448?9.459), even after controlling for all other variables (OR, 3.996; 95% CI, 1.806?8.841).
Conclusion : Chronotype was the factor most strongly associated with sleep disturbance, and therefore should be considered an important variable in sleep quality, particularly in occupations involving stressful activities, such as firefighting.
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KEYWORD
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Chronotype, Sleep disturbance, Insomnia, firefighter
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