• 한국임상약학회지
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• 제34권1호
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• pp.21-29
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• 2024

Background: Daytime sleepiness, a common phenomenon among adolescents focused on academics, has negative effects on aspects such as growth and overall learning. However, research on various drugs and diseases affecting daytime sleepiness is lacking in the reality. Therefore, this study aims to investigate the factors influencing daytime sleepiness in adolescents with daytime sleepiness. Methods: This study was conducted through a survey of 2,432 middle and high school students, aged 14 to 19. The questionnaire consisted of information on socio-demographic characteristics, overall health status, and sleep patterns. The Pediatric Daytime Sleepiness Scale (PDSS), translated into Korean, was used to assess daytime sleepiness. Daytime sleepiness was measured by calculating the total score for each item of the PDSS, and divided into two groups based on the cutoff value of 19, which was the upper quartile. Results: We analyzed a total of 1,770 students including 799 boys and 971 girls. Students with a PDSS score of 19 or higher made up 33.3% of boys and 66.7% of girls. In multivariate analyses, females, smoking, poor self-reported health level, sleep after 12 am, not feeling refreshed in the morning, headache, muscle pain, and scoliosis increased the risk of daytime sleepiness significantly. The AUROC of PDSS, including significant factors in multivariate analyses, was 0.751 (95% CI 0.725~0.776). Conclusions: Daytime sleepiness in adolescents affects growth, academic performance, and emotional stability. Therefore, it is important to manage medications, diseases, and other factors that affect daytime sleepiness on a social level.

• 수면정신생리
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• 제16권2호
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• pp.56-60
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• 2009

Excessive daytime sleepiness in childhood might be abnormal phenomenon and often related to the sleep disorders or insufficient sleep duration. The most common cause of excessive daytime sleepiness would be insufficient sleep. However, narcolepsy, idiopathic hypersomnia, circadian rhythm sleep disorders, medication, medical illness and other sleep disorders that could cause insomnia and poor quality of sleep also result in excessive daytime sleepiness. The misdiagnosed and untreated excessive daytime sleepiness in childhood can lead to serious developmental and educational problem.

• 한국조사연구학회지:조사연구
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• 제12권2호
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• pp.27-50
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• 2011

도시의 행정수요 측정과 도시경제 운영을 위해 주간활동인구를 파악해야 할 필요성이 증가하였다. 상주인구를 보완하는 개념으로서 센서스의 통근 통학 자료에 근거를 둔 주간인구가 활용되고 있으나 서비스 경제가 압도적인 서울과 같은 대도시의 주간활동인구 파악에는 한계가 있다. 본 연구에서는 도시의 주간활동인구를 파악하기 위한 개념으로서 유동인구를 제시하고 서울시 유동인구 조사의 방법을 소개하였으며 주요 분석결과를 제시하였다. 유동인구 조사자료의 분석 결과 센서스 기반 주간인구에서는 파악할 수 없었던 시간대별, 공간대별 도시 주간활동인구의 분포를 밝힐 수 있었다. 끝으로 유동인구 조사자료를 통해 파악한 주간인구와 센서스 기반 주간인구를 자치구 수준에서 비교함으로써 유동인구 조사 자료의 주요 특성들을 밝혔다.

• 해양환경안전학회지
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• 제24권3호
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• pp.339-345
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• 2018

Sunrise and sunset times differ depending on location and date. Previous studies conveniently but monotonously applied day and night times set up. This research defined the daytime and nighttime while considering the time of twilight according to the date and the location of ship collision accidents. Classifying the frequency of ship collision accidents with this standard, we conducted a chi-squared test for the difference between daytime and nighttime. The frequencies of ship collision accidents according to daytime and nighttime was compared by season, month, and time, and all of them showed statistically significant differences. The highest number of daytime ship collisions was 11.6 %, in June, and nighttime collisions peaked at 13.7 %, in December. The most frequent hour for daytime ship collisions was 0700h-0800h, at 10.2 %, and nighttime collisions peaked between 0400h-0500h, at 16.9 %. It is clear that the criteria used in previous studies cited was applied without any theoretical basis and likely only for the convenience of the researchers. It was found that results depend on what criteria are applied to the same research data. This study shows that statistical analyses of marine accidents, traffic volume, and congestion density should be carried out quantitatively while considering daytime and nighttime hours for each particular location and date.

• 한국도로학회논문집
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• 제18권3호
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• pp.127-134
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• 2016

PURPOSES : Low visibility caused by dark surroundings at nighttime affects the likelihood of accidents, and various efforts, such as installing road safety facilities, have been made to reduce accidents at night. Despite these efforts, the nighttime severity index (SI) in Korea was higher than the daytime SI during 2011-2014. This study determined the factors affecting daytime and nighttime accident severity through a discriminant analysis. METHODS : Discriminant analysis. RESULTS : First, drowsiness, lack of attention, and lighting facilities affected both daytime and nighttime accident severity. Accidents were found to be caused by a low ability to recognize the driving conditions and a low obstacle avoidance capability. Second, road conditions and speeding affected only the daytime accident severity. Third, failure to maintain a safe distance significantly affected daytime accident severity and nonsignificantly affected nighttime accident severity. The majority of such accidents were caused by rear-end collisions of vehicles driving in the same direction; given the low relative speed difference in such cases, the shock imparted by the accidents was minimal. CONCLUSIONS : Accidents caused by a failure to maintain a safe distance has lower severity than do accidents caused by other factors.

• 문화기술의 융합
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• 제5권4호
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• pp.105-114
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• 2019

커뮤니티케어가 기반이 된 주간활동서비스는 학령기 이후의 성인 발달장애인을 위한 돌봄과 지역사회의 다양한 참여를 결합한 '참여형 지역사회 통합 돌봄(커뮤니티 케어) 서비스를 의미한다. 만 18세 이상의 성인 발달장애인이 낮 시간 돌봄 및 지역사회 참여 프로그램을 제공받는 다는 점에서 부모 및 가족의 돌봄부담을 경감시키고 발달장애인 당사자에게는 생애주기별 평생케어의 성격을 지니고 있다. 본 연구의 목적은 커뮤니티 케어기반의 주간활동서비스내용을 고찰하고, 성인기 발달장애인에게 의미 있는 사회참여가 될 수 있는 돌봄 프로그램을 전개하기 위해 앞으로 전개되어야 할 주간 활동서비스 활성화 방안을 모색하는데 있다. 이에 문헌연구를 통해 커뮤니티케어로서의 성인발달장애인의 주간활동 서비스, 사회활동실태를 분석하고, 우리나라 보다 앞서 주간활동서비스를 제공하고 있는 영국 켄트 주의 주간활동서비스 사례를 살펴보았다. 이상을 바탕으로 활동지원바우처 증액, 주간활동 서비스 시간확대, 주간활동 서비스 대상자 수 확대를 위한 예산편성 확대, 최중증 발달장애인 20% 우선순위를 확대 적용 및 별도의 팀 구성, 발달장애인지원센터의 역할 강화를 제시하였다.

• 한국인구학
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• 제24권1호
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• pp.41-65
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• 2001

This study aims a comparative analysis of social stratification in the Great Seoul area using two types of population. One type of population is a resident population(常住人口), and the other is a daytime population주간인구(晝間人口). In most demographic studies, only resident population have been considered. There has been less attention to daytime population. However, a resident population have a character of night population야간인구(夜間人口). In fact, most people move and work in the areas where they do not live in everyday life in the contemporary period, which indicates that the concept of a daytime population is more significant than that of a resident population. This study reveals that a number of people, on the one hand. come together to the downtown area to work or study while they live in other areas. On the other hand, resident population in downtown area do not move so much. When we analyze the social stratification structure of the Great Seoul area using a resident population, we find that the resident population of downtown area consist of those of low social status. On the contrary, the daytime population of downtown area in Seoul consist of those of high social status. This means that most people of high social status live in the southern area of Seoul or outside Seoul, but make a living in downtown area in everyday life. From this study, we find that the concept of a daytime population is as important as that of a resident population. The more residence becomes separate from work place, the more the significance of the concept of a daytime population grows in making policy as wall as in demographic studies. This study implies that we need to pay more attention to the concept of daytime population in demographic and sociological Studies.

• 한국전자통신학회논문지
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• 제8권12호
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• pp.1941-1948
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• 2013

본 연구는 우리나라 주간근로자의 건강증진 실천행위와 대사증후군과의 관계를 알아보고, 추후 대사증후군 환자의 건강증진 실천행위의 중요성을 제시하고자 실시하였다. 국민건강영양조사 제5기 1차년도 자료 중 주간근로자 1,034명을 대상으로 하였다. 연구결과 우리나라 주간근로자의 대사증후군은 연령이 증가할수록, 교육수준이 낮을수록, 흡연할수록 유의하게 높았고, 건강증진 실천행위 수가 증가할수록 대사증후군의 유병률이 낮아졌다는 결과를 얻었다. 주간근로자의 대사증후군을 관리 예방하기 위해서는 저비용, 고효율적 중재방법인 적절한 생활습관을 중재하는 것이 효과적이라고 사료된다.

• 환경위생공학
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• 제16권1호
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• pp.18-26
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• 2001

The increase of economic growth has brought out the noise pollutions in city regions. To evaluate these problems, this study was investigated to assessment and analysis of noise pollutions at Cheongju area in winter and summer seasons. The noise levels were measured and analyzed at the general areas the 4 roadside areas (park, residential, commercial, and industrial area). As a result, following facts have been found. The equivalent sound levels(Leq) at general are in winter were 51.3∼78.2 dB(A) at the daytime and 41.1∼63.1 dB(A) at the nighttime And in summer there were 53.5∼77.3 dB(A) at the daytime and 41.9∼64.0 dB(A) at the nighttime, respectively. These values were higher than average value of Korea. At the roadside area, the values of Leq were 51.9∼72.8 dB(A) at the daytime, 44.3∼68.2 dB(a) at the nighttime in winter, and in summer there were 62.5∼73.1 dB(A) at the daytime and 50.4∼68.3 dB(A) at the nighttime, respectively. These values were lower than average value of Korea. The calculated traffic noise index(TNI) were 64.6∼93.6 at the daytime and 26.5∼106.6 at the nighttime in winter, In summer, there were 65.0∼90.7 at the daytime, and 32.3∼91.8 at the nighttime. The TNI values varied wide ranges at the nighttime according to traffic volumes.

• Clinical and Experimental Pediatrics
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• 제54권1호
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• pp.29-35
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• 2011

Purpose: Korean adolescents have severe nighttime sleep deprivation and daytime sleepiness because of their competitive educational environment. However, daytime sleep patterns and sleepiness have never been studied using age-specific methods, such as the pediatric daytime sleepiness scale (PDSS). We surveyed the daytime sleepiness of Korean adolescents using a Korean translation of the PDSS. Methods: We distributed the 27-item questionnaire, including the PDSS and questions related to sleep pattern, sleep satisfaction, and emotional state, to 3,370 students in grades 5-12. Results: The amount of nighttime sleep decreased significantly with increasing age. During weekday nights, $5-6^{th}$ graders slept for $7.95{\pm}1.05h$, $7-9^{th}$ graders for $7.57{\pm}1.05h$, and $10-12^{th}$ graders for $5.78{\pm}1.13h$. However, the total amounts of combined daytime and nighttime sleep during weekdays were somewhat greater, $8.15{\pm}1.12h$ for $5-6^{th}$ graders, $8.17{\pm}1.20h$ for $7-9^{th}$ graders, and $6.87{\pm}1.40h$ for $10-12^{th}$ graders. PDSS scores increased with age, $11.89{\pm}5.56$ for $5-6^{th}$ graders, $16.57{\pm}5.57$ for $7-9^{th}$ graders, and $17.71{\pm}5.24$ for $10-12^{th}$ graders. Higher PDSS scores were positively correlated with poor school performance and emotional instability. Conclusion: Korean teenagers sleep to an unusual extent during the day because of nighttime sleep deprivation. This negatively affects school performance and emotional stability. A Korean translation of the PDSS was effective in evaluating the severity of daytime sleepiness and assessing the emotional state and school performance of Korean teenagers.