title: The Combined Effect of Sleep Duration and Quality on Mental Health Among Republic of Korea Armed Forces.
abstract: Sleep problems in the Republic of Korea Armed Forces have increased. This study analyzed the mental health impact of sleep duration and quality on personnel of the Republic of Korea Armed Forces. Data from the 2014 Military Health Survey were used. Degree of sleep duration and quality were measured by this self-reported questionnaire. Analysis of variance was carried out to compare Kessler Psychological Distress Scale 10 (K10) scores. Multiple logistic regression analysis identified associations between sleep duration, quality, and K10 scores. Among the personnel studied, 2.5% reported severe sleep difficulties. The average sleep duration was 6.83 ± 1.12 hours. Short sleep duration and sleep difficulty were associated with poorer K10 scores. Higher K10 scores among individuals with short sleep duration and low sleep quality were identified in the isolated military area group, the over 53 working hours/week group, and the enlisted soldier group. The factors listed were not by themselves associated with poorer mental health scores. Rather, specific workplaces and specific rank groups were more prone to poorer mental health. These results provide helpful information to minimize the negative psychological effects of sleep factors and to promote a sleep problem prevention and management policy.
authors.affiliation: Department of Public Health, Graduate School, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea.
authors.forename: Tae Kyung
authors.initials: TK
authors.lastname: Kim
authors.affiliation: Department of Hospital Management, Graduate School of Public Health, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea.
authors.forename: Hee-Choon
authors.initials: HC
authors.lastname: Lee
authors.affiliation: Institute of Health Services Research, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea.
authors.forename: Sang Gyu
authors.initials: SG
authors.lastname: Lee
authors.affiliation: Department of Public Health, Graduate School, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea.
authors.forename: Kyu-Tae
authors.initials: KT
authors.lastname: Han
authors.affiliation: Institute of Health Services Research, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea.
authors.forename: Eun-Cheol
authors.initials: EC
authors.lastname: Park
mesh_terms: D000328:Adult; D015992:Body Mass Index; D015444:Exercise / Q000523:psychology; D005260:Female; D006306:Health Surveys; D006801:Humans; D008297:Male; D008603:Mental Health / Q000592:standards*; D008875:Middle Aged; D008889:Military Personnel / Q000523:psychology*; D011594:Psychometrics / Q000295:instrumentation / Q000379:methods; D056910:Republic of Korea; D012890:Sleep / Q000502:physiology; D012893:Sleep Wake Disorders / Q000523:psychology*; D012907:Smoking / Q000009:adverse effects / Q000523:psychology; D013315:Stress, Psychological / Q000150:complications / Q000209:etiology*; D059020:Suicidal Ideation; D011795:Surveys and Questionnaires; D017132:Workplace / Q000523:psychology / Q000592:standards*