• 수면정신생리
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• 제24권2호
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• pp.97-105
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• 2017

목 적 : 본 연구의 목적은 불면증과 정신병적 증상이 지속되는 조현병 환자의 수면 장애와 연관된 요인과 수면의 특징을 평가하는 것이다. 방 법 : 지역사회 정신보건 시설에 거주 중이며 불면증과 정신병적 증상이 동반된 조현병 환자들이 참여하였다(n = 63). The Korean version of Insomnia Severity Index (ISIK)와 the Korean Version of Pittsburgh Sleep Quality Index (PSQI-K)와 같은 수면 척도가 평가되었고, ISI-K 점수가 15점 이상인 대상자들이 연구에 참여하였다. 정신병적, 불안, 우울 증상은 각각 Brief Psychotic Rating Scale (BPRS), the Korean Version of Anxiety Sensitivity Index (K-ASI) 그리고 the Korean Version of Beck Depression Inventory-I(K-BDI)로 평가하였다. 사회인구학적 자료와 ISI-K 그리고 PSQI-K 사이의 상관관계를 확인하기 위해 Pearson correlation analysis를 시행하였다. ISI-K와 PSQI-K에 영향을 미치는 각각의 요인을 확인하기 위하여 다중회귀분석으로 분석하였다. 결 과 : ISI-K와 PSQI-K의 평균 점수는 각각 $18.1{\pm}2.6$점과 $12.0{\pm}2.2$점이었다. Pearson correlation analysis 결과에서 발병 연령과 ISI-K사이의 음의 상관관계와 BPRS와 PSQI-K 사이, K-ASI와 모든 수면 척도 사이의 양의 상관관계를 확인하였다. ISI-K와 PSQI-K에 대해 K-ASI와 발병연령, K-ASI와 BPRS를 각각 단계적으로 입력한 모든 다중회귀분석에서 K-ASI만이 유의한 요인으로 남았다. 결 론 : 본 연구는 조현병 환자의 불면 증상이 우울 또는 정신병적 증상과 무관한 반면, 불안 증상과 관련이 있다는 점을 제안한다.

• Journal of Preventive Medicine and Public Health
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• 제57권1호
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• pp.83-90
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• 2024

Objectives: Professional firefighters face various health hazards and are required to maintain both physical and mental fitness to effectively mitigate crises and respond to emergencies. Moreover, the long working hours and shift work of this profession impact sleep quality. This study investigated the quality of sleep and its associated factors among firefighters in Bangkok, Thailand. Methods: This was a cross-sectional study of firefighters affiliated with the Bangkok Fire and Rescue Department, Bangkok Metropolitan Administration, Thailand between January 2023 and March 2023. A cluster random sampling technique was utilized to distribute 600 questionnaires to firefighters in 15 fire stations. The questionnaire addressed demographic, work-related, and environmental factors. Sleep quality was assessed using the Thai version of the Pittsburgh Sleep Quality Index (PSQI). Data analysis involved both descriptive and inferential statistics. Bivariate and multiple logistic regressions were performed. Results: The response rate was 78.7% (n=472), and 44.1% of the firefighters reported poor sleep quality (PSQI score >5). Sleep quality was statistically associated with conflicting family relationships (odds ratio [OR], 1.8; 95% confidence interval [CI], 1.1 to 2.9), additional part-time jobs (daytime, OR, 2.4; 95% CI, 1.3 to 4.4; or nighttime, OR, 4.3; 95% CI, 1.1 to 16.7), noisy sleeping areas (OR, 1.7; 95% CI, 1.1 to 2.8), and the availability of adequate bedding (OR, 3.0; 95% CI, 1.8 to 4.9). Conclusions: Poor sleep quality among firefighters was associated with various personal, work-related, and environmental factors. Organizations should promote policies that improve sleep quality through good sleep hygiene practices and facilities.

• 한국산학기술학회논문지
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• 제17권6호
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• pp.546-559
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• 2016

본 연구의 목적은 교대근무 간호사를 대상으로 스트레스 반응, 신체활동, 수면위생과 수면의 질의 관계를 분석하고, 수면의 질에 미치는 영향요인을 파악하기 위함이다. 연구대상은 경남 C시에 소재한 대학병원과 종합병원에서 교대근무 하는 간호사 168명이었고, 자료수집기간은 2016년 3월 25일부터 2016년 3월 31일까지 였다. 연구도구는 Pittsburgh Sleep Quaility Index, Stress Response Inventory, Korean version International Physical Activity Questionnaire Short Form 및 Sleep Hygiene Practice Scale을 사용하였다. SPSS WIN 18.0을 이용하여 빈도, 백분율, 평균, 표준편차, t-test, ANOVA 및 사후검증, Pearson correlation coefficient, Hierarchical mutiple regression으로 분석하였다. 연구결과, 교대근무 간호사의 수면의 질은 7.35점(범위 0-21점), 스트레스 반응은 2.20점(범위 1-5점), 신체활동량은 3986MET-min/week, 수면위생은 2.73점(범위 1-6점)이었다. 수면의 질은 교대근무 간호사의 특성 중 교대근무 경력, 건강상태, 일주기 리듬에서 유의한 차이를 보였다. 수면의 질에 영향을 미친 변수는 교대근무경력, 수면위생, 스트레스 반응, 신체활동으로 나타났으며 설명력은 40%(F=8.16, p<.001)였다. 따라서, 교대근무 간호사의 수면의 질을 향상시키기 위하여 수면위생 증진 교육을 실시하고, 스트레스 반응을 줄이기 위한 전략을 사용하도록 하며, 중간정도의 신체활동을 권장하는 것이 필요하다.

• 수면정신생리
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• 제28권1호
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• pp.34-42
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• 2021

Objectives: This study investigated sleep quality in female full-time homemakers and evaluated the relationship of sleep disturbance with psychological and socio-environmental factors. Methods: This cross-sectional study adopted a structured survey and sequential recruitment method for randomized participation of community-dwelling full-time female homemakers. Sleep quality and mental health were measured using the Korean version of the Pittsburgh Sleep Quality Index (K-PSQI), Korean version of the Beck Depression Inventory-II (K-BDI-II), Korean version of the Beck Anxiety Inventory (K-BAI), and Korean version of the Beck Hopelessness Scale (K-BHS). The willingness-to-pay (WTP) method was selected to measure the self-evaluated monetary value of household service work. The relationship among the main relevant factors was statistically analyzed through a mediation model. Results: A total of 166 participants were analyzed and classified having poor versus good sleep quality (poor : 24.1%, n = 40 ; good : 75.9%, n = 126 ; cut-off point = 9 on the K-PSQI). Significant between-group differences were observed in mental health status (K-BDI-II, p < 0.001 ; K-BAI, p < 0.001 ; K-BHS, p = 0.003). The moderated mediation model was verified, indicating that depression may mediate the association between nurturing burden and sleep disturbance. The path from nurturing burden to depression may be moderated by average monthly household income. Conclusion: A relatively high portion of full-time female homemakers may suffer from sleep disturbance and interactions between psychological and socio-environmental factors might determine sleep quality, suggesting the need for public health policies targeting improvement of sleep quality and mental health among full-time homemakers.

• 대한한방내과학회지
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• 제43권2호
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• pp.311-319
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• 2022

Objective: This case report describes an 82-year-old man complaining of insomnia with pain after discontinuation of quetiapine. Methods: The patient was treated with the herbal extraction Gilchogeun-dan, and symptomatic improvement was assessed using the Korean version of the Pittsburgh Sleep Quality Index. Results: Following 28 days of Gilchogeun-dan treatment, the patient's symptoms improved. Conclusions: This case suggests that Gilchogeun-dan could be effective in treating insomnia with pain through central nervous depressant activity and analgesic effect.

• 융합정보논문지
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• 제10권11호
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• pp.148-155
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• 2020

본 연구는 한국어판 피츠버그 수면의 질 지수(PSQI-K) 도구의 신뢰도와 타당도를 검증하고 수면장애군의 최적 절단점을 탐색하기 위한 목적으로 수행되었다. 초기 성인 64명을 대상으로 PSQI-K와 Fitbit charge 3^TM을 이용하여 주관적 수면의 질과 수면양상을 측정하였다. 도구의 신뢰도는 Cronbach's alpha coefficient 계수로, 도구의 타당도는 요인분석 및 PSQI-K 점수와 Fitbit tracker 간의 Spearman's rho 상관계수로 분석하였다. 연구결과, PSQI-K 점수의 Cronbach's alpha coefficient는 0.69였고, PSQI-K와 Fitbit tracker의 각 지표값과의 correlation은 0.67 이상으로 유의하였다. 수면장애군 구분을 위한 절단점은 ≥6일 때 민감도 0.93, 특이도 0.84로 가장 적합하였다. PSQI-K는 초기 성인의 수면장애군을 스크리닝함에 있어서 신뢰도와 타당도가 양호한 도구임이 확인되었다.

• Journal of Korean Biological Nursing Science
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• 제16권2호
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• pp.98-104
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• 2014

Purpose: The purpose of this study was to assess sleep quality and to identify predictors of poor sleep quality in nursing students. Methods: The participants surveyed were 302 individuals at G College located in Kangwon-do. The participants completed the questionnaire including demographic characteristics, health behavior, and the Pittsburgh Sleep Quality Index (PSQI) for sleep quality. The BMI was calculated using height and weight. For the statistical analysis, $X^2$ test, Spearman correlation, and logistic regression were performed using the SAS window (version 9.2) program. Results: From the 302 individuals, 219 (72.5%) had poor sleep quality. The results showed significant correlations between physical activity and sleep quality, as well as between sleep duration and sleep quality. The BMI and sleep quality did not show any significant relationship. The factors affecting sleep quality were sleep latency (OR, 4.167; 95% CI, 1.406-12.344), sleep duration (OR, 6.717; 95% CI, 2.386-18.912), and sedentary hours (OR, 2.971; 95% CI, 1.095-8.064). Conclusion: The study demonstrates that poor sleep quality is common in nursing students, and intervention study is needed to improve sleep quality in nursing students. Additional studies are needed to determine the relationship between BMI and sleep quality.

• 한국학교ㆍ지역보건교육학회지
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• 제18권1호
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• pp.43-56
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• 2017

Objectives: This study was aimed to investigate the status of sleep quality and related factors among some middle and high school students in one metropolitan city, Korea. Methods: The subjects were 480 high school students and 350 middle school students. Survey questions are based on Pittsburgh Sleep Quality Index(PSQI) to measure the quality of sleep and also include factors affecting the quality of sleep. PASW Statistics 20.0(Korean version) was used to carry out analysis. Results: Noise and stress showed the statistical significance as factors affecting the quality of sleep by multiple regression analysis. Individual characteristics was related to quality of sleep in only high school student. Conclusions: This study showed that noise and stress had a great correlation with the quality of sleep. Social consciousness and policies were needed to improve the quality of sleep for middle and high school student.

• 생물정신의학
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• 제21권2호
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• pp.74-80
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• 2014

Objectives More than half of the elders suffer from chronic sleep disturbances. Moreover, sleep disturbances are more prevalent in patients with depressive disorder than in community dwelling elderly. In this study, we aim to estimate the risk factors of poor sleep quality and its effect on quality of life in patients with late life depression. Methods This study included 159 depressive patients aged 65 years or older who completed Pittsburgh Sleep Quality Index (PSQI). A global PSQI score of 5 or greater indicates a poor sleeper. Structural diagnostic interviews were performed using the Korean version of Mini International Neuropsychiatric Interview (MINI). Depression was evaluated by the Korean form of Geriatric Depression Scale (KGDS). Global cognition was assessed by Mini-Mental State Examination in the Korean version of the Consortium to Establish a Registry for Alzheimer's Disease assessment packet. Quality of life was evaluated by the Korean version of Short-Form 36-Item Health Survey (SF-36). Results The frequencies of poor sleepers were 90.5% in major depressive disorder, 71.8% in minor depressive disorder, 47.1% in subsyndromal depressive disorder, and 73.0% in all types of depressive disorders. Multivariate logistic regression analysis indicated that female [odds ratio (OR) = 2.83, 95% confidence interval (CI) = 1.20-6.67] and higher KGDS score (OR = 1.13, 95% CI = 1.05-1.21) were risk factors of poor sleep quality in patients with late life depression. In the analysis of ANCOVA adjusted for age, gender, education and KGDS score, the mean scores of vitality mental health and mental component summary of SF-36 were lower in poor sleepers than in good sleepers. Conclusions Poor sleepers among patients with late life depression are very common and are associated with female and higher KGDS scores. Poor sleep quality causes a significant negative effect on mental health quality. So researchers and clinicians should be more vigilant in the evaluation and treatment of sleep disturbances in patients with late life depression.

• 한국직업건강간호학회지
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• 제29권4호
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• pp.306-315
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• 2020

Purpose: This study was conducted to identify the effects of caffeine intake by shift workers on sleep, considering various variable related to the sleep health of shift workers. Methods: A descriptive survey study was conducted with 128 employees who worked shifts. Respondents were surveyed on their of caffeine intake behavior, schedule type, quality of sleep, health promotion behavior, and occupational stress. Differences in their quality of sleep were assessed using the t-test and analysis of variance, while factors influencing the effect of caffeine intake on the quality of sleep were analyzed using hierarchical logistic regression. Results: The average Pittsburgh Sleep Index, Korean Version score of those surveyed was 7.3±3.25, indicating that their quality of sleep was low. On the other hand, their aveage daily intake of caffeine was 1.6±0.99 cups (1 cup =150 mL) and 116.4±77.58 mg/dL of caffeine. When the various variables that could have affected the quality of sleep were corrected, an increase in the amount of caffeine consumed was found to lead to a decrease in the quality of sleep (p=.015). Conclusion: Caffeine intake by shift workers has a significant bearing on their quality of sleep; therefore, such intake should be adjusted to improve their sleep health.