• Korean Journal of Child Studies
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• v.30 no.4
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• pp.173-189
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• 2009

This study investigated contextual characteristics and developmental functions of time spent alone in early adolescence. Participants were 107 6th grade elementary school students. The Experience Sampling Method was used to measure experiences of time spent alone. Findings were that : (1) 2.6% of an early adolescents' daily waking time was involuntarily spent alone and 14.8% was voluntarily spent alone. (2) Psychological states of voluntary time spent alone were more positive than those of involuntary time spent alone, and psychological states of voluntary time spent alone were not significantly different from those of time spent with family members or friends. (3) Experiences during voluntary time spent alone were related to adjustment, suggesting that time spent alone during early adolescence contributes to positive development.

• Cross-Cultural Studies
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• v.27
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• pp.387-414
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• 2012

This paper is intended to describe the idiosyncratic aspects of the 'let alone' construction in English, clarifying the productivity property of this construction and to show that this construction displays the properties of prepositional phrase that denote the meaning of 'the comparison of degree', against the claim that this construction should be regarded as a coordinating conjunction. In the process of doing that, this paper classifies this 'let alone' construction into two types of construction, by investigating the external and internal syntactic distributions of 'let alone' constructions as well as the relationship between 'let alone' phrases and the main clause.

• Korean Institute of Interior Design Journal
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• v.27 no.3
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• pp.71-78
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• 2018

The purpose of this study is to suggest customized service for managing solitary death using lifelog of the elderly living alone. The use of the lifelog technology is due to the advantage of suggesting a personalized service by analyzing the current situation by searching the past experiences of the elderly living alone. The method of study is reviewing literature and previous studies and collecting and analyzing the lifelog information of elderly living alone. The results of the study are as follows. First, it examined the problem of solitary death of the elderly living alone and tried to grasp the problem of the service using the IT technology supported by the government. Second, the lifelog information of the elderly living alone A was collected for two weeks. And the daily patterns of elderly living alone were analyzed through lifelog interpretation. Third, we proposed and discussed the residents' personalized service for managing solitary death based on the lifelog of the elderly living alone. It is an advantage of this paper that it is possible to support customized services by analyzing the general behavior of the elderly living alone and the exceptional behavior in the housing. However, the limitation of this study is that it does not reflect more subjects with various characteristics.

• Journal of the Korean Dietetic Association
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• v.26 no.2
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• pp.85-100
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• 2020

Eating alone has recently become a very common dietary pattern in modern society. This study investigated the relationship between the frequency of eating alone and health related issues including chronic diseases, depression, and the quality of life (QOL). The 2016 Korea National Health and Nutrition Examination Survey provided the basic data for this study. According to the general analysis of 4,910 adults aged over 19 years or older, the average age in the 'eating alone' group was significantly higher (P<0.001), and the ratio of single-person households was significantly higher as the number of times of eating alone increased (P<0.001). Analysis of the relationship between the risk factors of metabolic syndrome according to the number of times eating alone, using logistic regression analysis, showed that the odds ratio of metabolic syndrome in the 'two times eating alone a day' group was approximately 1.3 times higher (OR=1.275) after being corrected for gender, age and energy intake. For the 'three times eating alone a day' group, the metabolic syndrome odds ratio was higher in all models except for model 1 and 5 (P for trend<0.05). The prevalence of depression using patient health questionnaire-9 (PHQ-9) was higher as the number of eating alone increased, and the QOL was inversly related with the number of meals eating alone (P for trend<0.01). We hope the results of this study will raise awareness of the health of those people who eat alone and lay the groundwork for individuals who eat alone and gain social attention.

• Archives of Pharmacal Research
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• v.27 no.7
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• pp.769-775
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• 2004

Hepatic ischemia and reperfusion (l/R) predisposes the liver to secondary stresses such as endotoxemia, possibly via dysregulation of the hepatic microcirculation secondary to an imbalanced regulation of the vascular stress genes. In this study, the effect of hepatic I/R on the hepatic vasoregulatory gene expression in response to endotoxin was determined. Rats were subjected to 90 min of hepatic ischemia and 6 h of reperfusion. Lipopolysaccharide (LPS, 1 mg/kg) was injected intraperitoneally after reperfusion. Plasma and liver samples were obtained 6 h after reperfusion for serum aminotransferase assays and RT-PCR analysis of the mRNA for the genes of interest： endothelin-1 (ET-1), its receptors $ET_A$ and $ET_B$, endothelial nitric oxide synthase (eNOS), inducible nitric oxide synthase (iNOS), heme oxygenase-1 (HO-1), cyciooxygenase-2 (COX-2), and tumor necrosis factor-a (TNF-${\alpha}$). The activities of serum aminotransferases were significantly increased in the I/R group. This increase was markedly potentiated by LPS treatment. The ET-1 mRNA was increased by LPS alone, and this increase was significantly greater in both the I/R alone and I/R ＋ LPS groups compared to the sham. There were no significant differences in ETA receptor mRNA levels among any of the experimental groups. $ET_B$ mRNA was increased by both LPS alone and I/R alone, with no significant difference between the I/R alone and I/R ＋ LPS groups. The eN OS and HO-1 transcripts were increased by I/R alone and further increased by I/R ＋ LPS. The iNOS mRNA levels were increased by I/R alone, but increased significantly more by both LPS alone and I/R ＋ LPS compared to I/R alone. The TNF-${\alpha}$ mRNA levels showed no change with I/R alone, but were increased by both LPS alone and I/R ＋ LPS. The COX-2 expression was increased significantly by I/R alone and significantly more by I/R ＋ LPS. Taken collectively, significantly greater induction of the vasodilator genes over the constriction forces was observed with I/R ＋ LPS. These results may partly explain the increased susceptibility of ischemic livers to injury as a result of endotoxemia.

• The Journal of Korean Society for School & Community Health Education
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• v.22 no.3
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• pp.69-81
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• 2021

Purpose: This study purposed to analyze of factors related to suicidal ideation among people with and without disabilities in elderly living alone Methods: The study examines the factors of suicidal ideation using over 65 years of age who participated in the 2017 National Survey of Older Koreans of the elderly living alone data. Subjects were 2,265 person among elderly living alone over 65 years of age. Data were analyzed using descriptive statistics, X²-test, t-test, logistic regression analysis with the SPSS win 26.0 program. Results: Suicidal ideation of the elderly living alone with disabilities were 13.6% and 9.0% of the elderly living alone without disabilities, and the elderly living alone with disabilities had higher suicidal ideation (p<.05). The significant predictors of the suicidal ideation in elderly living alone with disabilities were employment and depression. The significant predictors of the suicidal ideation in elderly living alone without disabilities were age, gender, number of chronic disease, economic state, SLCA(Society, leisure, culture, and activities) and depression. Depression was analyzed as a common factor related to suicidal ideation in disabled and non-disabled elderly living alone. Conclusion: Based on the results of this study, it is necessary to develop a program for people with and without disabilities. It is necessary to prepare various programs and community support systems to prevent and manage depression for people with and without disabilities in elderly living alone.

• Korean Journal of Community Nutrition
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• v.8 no.3
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• pp.280-287
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• 2003

To investigate effects of the shared living on nutrient intakes,250 college male students who were living alone (104 men) or sharing accommodation with friends (134 men) were participated. Their average age was 22.6 years, their average height was 171.8 cm, their average weight was 65.6 kg and their average Body Mass Index (BMI) was 22.2. The caloric intakes of the men living alone or sharing accommodation were 55.9% and 72.5% of the Korean Recommended Dietary Allowance (RDA), respectively. The decreased caloric level of the group living alone seemed to be due to their decreased protein and fat consumption as compared to that of the group sharing accommodation. The group living alone consumed increased amounts of fiber for breakfast and half the carbohydrates, but more fat (p < 0.05) in snacks than the group sharing accommodation. The daily carbohydrate : protein : fat (C : P : F) ratio averaged 58.6 14.1 27.3, which is a lower carbohydrate and a higher fat ratio than the Korean recommended ratio. However, the group living alone was closer to the Korean recommended ratio than the group sharing accommodation. The food intake habits were evaluated as being poorer in the group living alone as compared to the group sharing accommodation, less frequent consumption of fried / pan-fried dishes, and fruits / juices, but more frequent consumption of instant / processed foods. In comparing the eating patterns of the two groups, the group living alone showed better eating habits, such as more“breakfast eating”and less“snacking in the morning, afternoon or late at night”whereas the group sharing accommodation showed better eating habits such as less“picky eaters”and less “eating out”. In the group living alone, their lower caloric intake was assumably due to their fewer side dishes, however they showed higher eating frequencies of instant i processed foods. Since the lifestyle of living alone seems to grow gradually among young men, we strongly recommend dietary education for them.

• Korean Journal of Community Nutrition
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• v.13 no.5
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• pp.620-629
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• 2008

The purpose of this study was to assess dietary habits and seasonal variation and diversity of food intakes of elderly women living alone as compared to those of elderly women living with family in a rural area. Forty nine elderly women living alone and forty one elderly women living with family who reside in Goryeong-gun, Gyeongbuk, were interviewed using questionnaires in summer 2005, and their food intakes were assessed secondly in winter and thirdly in spring 2006. The average ages were 74.7 years for elderly living alone and 72.8 years for elderly living with family. Tooth status and bone fracture experience were similar between the groups. The prevalence of musculoskeletal disease was 61.2% and that of circulatory disease was 32.7% of the subjects. Average of total score of mental depression of the subjects was 5.94 out of 12 points, and it was not significantly different between the two groups. Skipping meals was more frequent and mealtime was more irregular in the elderly women living alone as compared with the elderly women living with family. Consumption of dietary supplements was also less in the elderly women living alone. Food intakes by the elderly women living alone tended to be lower than those by the elderly women living with family. Dietary diversity score was significantly lower with the elderly women living alone as compared with the elderly women living with family only in summer (p < 0.01). Percentages of the subjects who have taken meat group and vegetable group were significantly lower in the elderly living alone compared with the elderly living with family during summer. Therefore, it is necessary to develop food assistance or supporting program suited for the season within a community for elderly women living alone.

• Mood & Emotion
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• v.16 no.3
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• pp.169-177
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• 2018

Objectives : Despite the lack of domestic research, eating alone has been reported to be related to depression. We investigated correlation between eating alone, and depression, among women age 65 and older. Methods : Among women registered in the Korea National Health and Nutrition Examination Survey data, 1,119 elderly in 2014, and 1,189 in 2016, were analyzed. Eating alone and the degree of depression were assessed, using a questionnaire and the Patient Health Questionnaire-9 respectively. The relationship between eating alone and depression, was analyzed using multilevel logistic regression. Results : In 2014 data, eating alone had significant effect on depression, as the explanatory power is increased to 30.4% in a 'three meals eating alone a day' group (${\beta}=0.128$, p<0.05), when the eating alone parameter is added to demographic factors and health characteristics. In 2016, exploitation of 'the frequency of eating alone' variable led to increment of explanatory power to 22.3%, that was not statistically significant. Conclusion : The result of this study suggests that eating alone among women age 65 and older, was a risk factor of depression in 2014, and is becoming a new life pattern as a social and cultural phenomenon in 2016.

• Journal of the Korean Society of Food Culture
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• v.38 no.1
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• pp.38-47
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• 2023

In this study, we aimed to explore whether eating alone is associated with mental health conditions in Korean adolescents. The data of 2,012 Korean adolescents aged 12-18 years were obtained from the Korea National Health and Nutrition Examination Survey 2015-2019. Participants were classified into three groups based on the frequency of eating alone: none (all meals with others); 1 meal/day alone; and ≥2 meals/day alone. Mental health conditions were assessed based on stress recognition, depressive symptoms, and suicidal ideation. Multivariable logistic regressions were employed to calculate the adjusted odds ratios (AORs) and 95% confidence intervals (CIs) of poor mental health conditions according to the frequency of eating alone. Adolescents who ate ≥2 meals/day alone had higher odds of stress recognition (AOR: 2.65, 95% CI: 1.94-3.63), depressive symptoms (AOR: 2.55, 95% CI: 1.47-4.42), and suicidal ideation (AOR: 2.53, 95% CI: 1.05-6.08) than those who ate all their meals with others. In addition, having breakfast or dinner alone increased the odds of stress recognition. Considering the continuous increase in the social phenomenon of eating alone, nutritional educations are needed to develop adolescents' ability to choose more nutritionally balanced and healthy meals when eating alone.