• Proceedings of the Korean Society of Computer Information Conference
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• 2012.01a
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• pp.65-67
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• 2012

수면은 인간에게 삼분의 일 정도 잠을 자면서 보낸만큼 매우 중요한 생리 현상이다. 본 논문에서는 이러한 수면을 환경을 측정하고 수면의 질 발전 방향을 모색한다. 수면 측정을 위하여 $X^2$ 히스토그램을 이용한 장면 전환 검출 방법을 이용한다. $X^2$ 히스토그램 방법은 통계학적 장면 전환 검출 방법의 하나로서 다른 히스토그램 방법보다 성능이 우수하기 때문에 많은 연구에서 사용된다. 또한 수면의 질 발전을 위하여 피로도, 음주도, 그리고 공복도를 입력하여 각각의 상황에 따른 뒤척임을 추출한다.

• Journal of agricultural medicine and community health
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• v.25 no.1
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• pp.51-63
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• 2000

Ten Dongs were selected according to the systematic cluster sampling in Koryong Gun, and the survey was conducted on 571 women in the age between 30-69 years. The first survey was performed for 6 days between August 27 to September 1, 1999 with the investigation rate of 60.3%, and the second survey was performed in November with the investigation rate of 91.8%. The contents of survey included demographic characteristics, health behaviors, dyspepsia symptom score, sleeping induction time and the degree of sleep satisfaction, and degree of stress in the subjects. The dyspepsia symptom score was in the average 13.4 points out of a total 44 points and was the highest in the 50-59 year-old age group with 13.9 points. The sleep induction time was in the average of 35 minutes and was the highest in the 50-59 year-old age group with 40.9 minutes; the degree of sleep satisfaction was in the average of 7.9 points and was the lowest in the 50-59 year-old age group with 7.5 points. The stress score was in the average of 18.3 points and was highest in those subjects in their 40's and 50's with 18.7 points. When the correlation among the stress score, the degree of sleep satisfaction and dyspepsia symptom score was analyzed, the results showed that he stress score and the degree of sleep satisfaction showed a significant negative correlation and that the stress score and dyspepsia symptom score showed a significant positive correlation. Also, a significant negative correlation was found between the degree of sleep satisfaction and dyspepsia symptom score. According to each age group, a significant correlation was revealed among the stress score, dyspepsia symptom score and the degree of sleep satisfaction in those subjects over 40 years of age compared to those subjects who were younger than 40 years of age. As for educational level, the correlation among the stress score, the degree of sleep satisfaction and dyspepsia symptom score was higher in those subjects with less than middle school education compared to those subjects with more than high school education. When those factors that effects on the dyspepsia symptom score were analyzed with multiple regression, the results showed that the level of stress and chronic diseases were selected as significant variables. When those factors that affected on the degree of sleep satisfaction were analyzed, the sleep induction time and presence of chronic diseases and stress were selected as significant variables. Those women in their 50's who live in rural areas showed the highest level of stress, lowest the degree of sleep satisfaction, and highest level of dyspepsia, indicating that they need stress management. Also, since stress was showed to be a significant variable effecting on dyspepsia or the degree of sleep satisfaction, it is concluded that health promotion is possible through stress management. More studies are needed in the future on coping resources that would strengthen coping against stress, and by conducting studies on stress and related factors on community people, the measures of mental health promotion need to be developed.

• 한국노년학
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• v.31 no.2
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• pp.211-222
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• 2011

The purpose of this study was to assess pain, life satisfaction, sleep pattern, and depression and the relations between these in elderly women with ostearthritis. Methods: The subjects were 124 elderly women with osteoarthritis at senior center in C city. Data were analyzed by descriptive statistics, Pearson's correlation coefficients, and multiple regression with SPSS/WIN 14.0. Results: The major findings of this study were as follows. 1) The mean score of variables were pain 2.58, life satisfaction 65.4, sleep pattern 37.6 and depression 13.58. 2) 43.5% of the subjects belonged to depression group. 3) There were significant relationships between depression and pain, life satisfaction, sleep pattern. 4) Significant factors influencing depression were life satisfaction, pain and sleep pattern. These factors explained 48% of depression in elderly women with ostearthritis. Among them, life satisfaction was the most significant factor. Conclusion: These finding give useful information for constructing an intervention and preventive program depression in the elderly women with osteoarthrtitis.

• Journal of Families and Better Life
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• v.13 no.3
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• pp.47-57
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• 1995

본 연구에서는 취업여성의 가정과 직업 여가생활만족의 경향을 조사하고 이와 관련 있고 영향을 미치는 요인을 분석함으로써 취업여성의 생활만족을 증진시키는 방안을 모색하 고자 하였다. 1) 기혼 취업여성의 생활만족은 중간수준이고 가정생활만족도가 직업생활만족 도 보다 약간 더 높은 수준이며 여가 생활만족도는 가장 낮다. 세부적으로 물적 객관적 조 건보다는 인적측면에 보다 만족하고 있다 2) 전체생활만족과 가정과 직업, 여가 생활만족은 가정환경변수에서는 남편의 가사조력, 부인 취업에 대한 남편의지지, 취업동기 등에 의하여 영향을 받고 시간관련 변수에서는 시간갈등, 근무시간의 융통성 수면시간에 의하여 영향을 받고 있다 살제할애하는 시간양의 많고 적음보다는 지각하는 시간갈등과 근무시간의 융통성 이 상대적으로 중요한 변수로 작용하였다 3) 영역별 만족과 세부문항에 대한 만족간에는 모 두 긍정적인 관련이 있다 전체 생활만족은 직업생활보다는 가정생활만족도 약간 더 높은 강 한관련을 가지고 여가생활 만조과는 중간정도의 관련을 가진다.

• Sleep Medicine and Psychophysiology
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• v.18 no.2
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• pp.76-81
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• 2011

Objectives: This study aims to analyze the association between the severity of sleep apnea, sleep and mood related scales, and activity during sleep in obstructive sleep apnea syndrome (OSAS) patients. Methods: 176 drug-free male patients confirmed as OSAS (average age=$43{\pm}11$ years) were selected through nocturnal polysomnography (NPSG). OSAS was diagnosed with apnea-hypopnea index (AHI) >5, mean AHI was $39.6{\pm}26.0$. Sleep related scales were Stanford Sleepiness Scale (SSS), Epworth Sleepiness Scale (ESS), Pittsburg Sleep Quality Index (PSQI) and Morningness-Eveningness Scale (MES). Mood related scales were Beck Depression Inventory (BDI), Beck Anxiety Inventory (BAI), State-Trait Anxiety Inventory (STAI) I, II and Profile of Mood States (POMS). NPSG was performed overnight with both wrist actigraphy (WATG). Parameters produced from WATG were total activity score, mean activity score and fragmentation index. We analyzed the correlation between each scale, AHI scored from NPSG and activity score analyzed from WATG. Results: ESS showed significant positive correlation with PSQI, BDI, BAI and STAI I, II, respectively (p<0.01). SSS showed significant positive correlation with PSQI and BAI (p<0.05, p<0.01). BAI showed significant positive correlation with total activity score, mean activity score and fragmentation index (p<0.05, p<0.01, p<0.05).Total activity score showed significant positive correlation with ESS and BAI, respectively (p<0.05). Fragmentation index showed significant positive correlation with ESS, PSQI and BAI (p<0.05, p<0.01, p<0.05). AHI, indicator of sleep apnea is showed no significant correlation with each sleep and mood related scale. Conclusion: The degree of daytime sleepiness tends to be associated with night sleep satisfaction, depression and anxiety, and the activity during sleep rather than the severity of sleep apnea.

• The Journal of the Korea institute of electronic communication sciences
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• v.8 no.2
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• pp.345-353
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• 2013

This study was conducted to clarify the effect of sleeping disorder on the life stress of the university student on the side of cooking for himself, housing noise, dissatisfaction in school life, ill health, problem in future and a sense of values. A self-boarding student apart from a family (p<.042) had a higher sleeping stress. Noise of housing environment (p<.002), life dissatisfaction in university (p<.007), ill health (p<.010), life stress (p<.004) led to a more sleeping stress. Both gloomy prospects (p<.002) and a sense of values (p<.001) disturbed a university man's sleep. Cooking food for oneself, housing noise, displeasure in university life, ill health, gloomy prospects and a sense of values gave risen to the university student's sleeping disorder.

• Sleep Medicine and Psychophysiology
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• v.16 no.2
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• pp.74-78
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• 2009

Objective: It has been reported that the sleep apnea syndrome in the asthmatic patients is prevalent, however, the systematic study in this field using polysomnography has rarely been performed. The aim of this study is to investigate the relationship between the apnea-hypopnea index (AHI) and the pulmonary function in asthmatic children. Methods: This study enrolled 19 male and 12 female asthmatic children aged 6-13 years (average $8.2{\pm}1.7$ years old). Complete overnight polysomnography and pulmonary function test were performed for the participants. Results: Of the 31 asthmatic children, 21 (67.7%) met the diagnostic criteria of the pediatric sleep apnea and the average AHI was $1.7{\pm}1.5/h$. The children with higher AHI showed poorer pulmonary function ($FEV_1$/FVC ratio: p=0.002, $FEV_1$%pred: p=0.047). Conclusion: These results suggest that the prevalence of the pediatric sleep apnea could be very high among the asthmatic children and the severity of the sleep apnea correlates with the pulmonary function. However, the case-control study to compare the AHI between the asthma and control groups is absolutely necessary because few normative data are available for the children.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.13 no.3
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• pp.1203-1211
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• 2012

The purpose of this study was to compare the health status, sleep and depression and to examine relationships between health status, sleep and depression by employment status in the elderly. This study used the data from the "2008 Korean National Survey on Older Adults" by Ministry of Health, Welfare and Family. Out of the total 15,146 Korean elderly surveyed, 5,204 subjects with job and 9,942 subjects without job at the present were used in a final analysis. There were significant differences in health status, sleep and depression by employment status. As for old adults with job, job satisfaction had the greatest effect on depression, followed by perceived health status, difficulty of daily activities by disease, and deep-sleeping days in the order. These variables accounted for 29% of depression. As for old adults without job, perceived health status had the greatest effect on depression, followed by difficulty of daily activities by disease, deep-sleeping days and total sleeping time in the order. These variables accounted for 32% of depression. Therefore, the health-promotion intervention to improve the health status, sleep and depression of the elderly should be planed and provided considering such differences by employment status.

• Journal of the Korean Society of Food Science and Nutrition
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• v.42 no.2
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• pp.212-222
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• 2013

We studied the eating habits and sleeping patterns of 682 middle and high school students in their third year in Gwangju. According to the body mass index (BMI) of the subjects, obesity (over weight) was significantly higher in the third graders of high school students ($20.8{\pm}4.0$, 32.9%) than middle school students ($19.4{\pm}3.8$, 14.2%) (p<0.001). In addition, 71.1% of high school students experienced a lack of sleep compared to 48.8% of middle school students (p<0.001). There was a difference between good and bad sleepers in the number of times they ate snacks and the quantity of their snacks. Good sleepers had more fruit and dairy products (e.g. fruit juice 2~4 times (p<0.05), milk 2~4 times (p<0.001), apples 2~4 times, strawberries 2~4 times (p<0.01), and bananas 2~4 times a week), while bad sleepers consumed more beverages, frozen desserts, flour-based foods, fast food, bread, and rice cake. Bad sleepers clearly consumed snacks more frequently. From analyzing the correlations between sleep quality and snack intake, eating fruits 2~4 times a week (30 g~200 g/once) and drinking dairy products 2~4 times a week (120 mL~400 mL/once) appears to promote better sleeping habits.

• Sleep Medicine and Psychophysiology
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• v.15 no.1
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• pp.25-32
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• 2008

Objectives: A few studies have compared REM sleep-dependent obstructive sleep apnea syndrome (REM-OSA) with sleep stage non-dependent apnea syndrome (SND-OSA). Despite that REM-OSA might be more common in women than men, no studies have examined the probable characteristics of women patients with obstructive sleep apnea syndrome (OSAS). This study aimed at finding out the characteristics of REM-OSA in women by comparing it with SND-OSA. Methods: Fifty-three subjects diagnosed as OSAS (AHI>5 ; AHI : apnea-hypopnea index) with nocturnal polysomnography at the Center for Sleep and Chronobiology of the Seoul National University Hospital between October 2004 and February 2006 were studied. Of them, 44 subjects with OSAS severity of mild (52 and AHI-NR<15 (AHI-R : AHI during REM sleep, AHI-NR : AHI during non-REM sleep). We compared REM-OSA group with SND-OSA as well as the criteria-determined REM-OSA cases with the visually-determined ones. Results: Among 44 subjects, 28 persons (63.6%) turned out to have REM-OSA by our criteria and 24 persons (54.5%) by visual determination. Statistically significant differences (p<0.05) were found between REM-OSA and SND-OSA groups in AHI, hypopnea index, total sleep time, total wake time, sleep efficiency index, percents of stage 1, 2 and REM sleep, and REM latency. Percent of stage REM sleep (%REM) turned out to have influence on AHI ratio (AHI-R/AHI-NR) (B=0.537, p=0.002). REM-OSA was likely to be diagnosed in milder severity of OSAS (${\chi}^2=13.117$, p<0.001) and those with higher %REM (${\chi}^2=11.325$, p=0.001). There was no significant difference between the criteria-determined and the visually-determined cases of REM-OSA. Conclusion: We suggest that REM-OSA and SND-OSA patients be differentiated in terms of pathophysiology and treatment strategies. Visual determination of REM-OSA might be useful as the screening procedure of REM-OSA. Further studies on women with OSAS and REM-OSA need to be done.