• Journal of Korean Clinical Nursing Research
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• v.27 no.1
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• pp.77-84
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• 2021

Purpose: Malnutrition affects all age groups, but older adults are particularly more vulnerable to nutritional deficiencies. This study evaluated the age-specific factors affecting malnutrition in hospitalized older adults. Methods: A retrospective study was conducted on inpatient elderly people who received artificial nutrition from 2010 to 2017. Data of demographics, diagnosis, type of nutrition therapy, number of comorbidity, fall risk assessment, Acute Physiologic Assessment and Chronic Health Evaluation (APACHE) score, and intensive care unit admission were collected. Malnutrition was defined as a body mass index (BMI) of less than 18.5 kg/m². Patients were classified as the young-old (65~74 years old), the old-old (75~84 years old), or the oldest-old (85 years old or older). Results: A total of 7,130 older adults were included, and 4,028 patients were classified as the young-old, 2,506 into the old-old, and 596 into the oldest-old. Proportion of malnutrition was higher in the oldest-old compared to the other groups. In multivariate analysis, parenteral nutrition, alcohol, and high risk of falls were factors affecting malnutrition in all groups. Parenteral nutrition and alcohol in the young-old, high risk of falls in the old-old, and male sex in the oldest-old were the factors affecting malnutrition by the age group. Conclusion: Older age was the most significant factor affecting malnutrition. Specific strategies by age are needed to improve nutritional status in hospitalized older adults as influencing factors for malnutrition vary among different age groups.

• Journal of Korean Public Health Nursing
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• v.28 no.3
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• pp.419-431
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• 2014

Purpose: The aim of this study was to understand the determinants of health-related quality of life (HRQOL) according to age groups in vulnerable elderly women. Methods: We conducted a cross-sectional study with 1,533 elderly women beneficiaries of the visiting health care program in Seoul. The participants were divided into three age groups: the young-old (n=753, 65-74 years), old-old (n=602, 75-84 years), and oldest-old (n=178, 85 years or older) groups. HRQOL was measured using the SF-8 questionnaire. Results: HRQOL was found to be worse in the oldest-old group (p=.007). Factors associated with HRQOL differ by age groups. In the young-old and old-old groups, higher HRQOL showed significant correlation with a higher level of self-rated health (SRH) and a lower level of depression, instrumental activities of daily living (IADL) dependence, and the number of chronic diseases. In addition, higher HRQOL was observed for elderly living alone than for those living with family. In the oldest group, higher HRQOL showed significant correlation with a lower level of depression, activities of daily living (ADL) dependence, and a higher level of SRH. Conclusions: In age specific groups, lower levels of HRQOL were observed for the oldest-old group than for the other age groups. Age group-specific nursing strategies may be required for improving HRQOL levels of vulnerable elderly women.

• The Korean Journal of Community Living Science
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• v.15 no.2
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• pp.55-64
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• 2004

The purpose of this study was to examine the differences in skin temperature and thermal comfort of participants in a $19^\circ{C}$ room (the recommended room temperature in the winter) depending on age, sex and clothing weight. Subjects were divided into four groups (6 young males, 5 young females, 6 old males, 6 old females) and experimental trials consisted of three conditions: wearing underwear in a $19^\circ{C}$ room (19CUW), without underwear in a $19^\circ{C}$ room (19C), and without underwear in a $24^\circ{C}$ room (24C). The results indicated the following: 1) There were no significant differences in mean skin temperature based on age or sex, and the mean skin temperatures of the four groups were in the range of 32.4∼$34.0^\circ{C}$. 2) In the 19C condition, the skin temperatures of the hands and feet of old females were higher than those of the other three groups. 3) In terms of perceived thermal comfort, young females showed a tendency to feel the most uncomfortable. Both old and young groups agreed that the 24C condition was the most comfortable. 4) Relational coefficients between thermal comfort and skin temperatures were higher in the young group than in the old group. Furthermore, the perceived thermal comfort had a stronger relationship with mean skin temperatures than with local skin temperatures. 5) The mean skin temperatures of subjects who indicated they were 'comfortable' were in the range of 31∼$36^\circ{C}$ regardless of age or sex.

• Journal of the Korean housing association
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• v.28 no.1
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• pp.83-93
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• 2017

This research intends to find out the impact of housing wealth of home-owning pre-retirees and older adults consisting of young-old, middle-old and old-old groups on their household consumption. In doing so, this research analyzes 2,350 home-owning households by utilizing the 17th Korean Labour and Income Panel Study (KLIPS). The results show that housing wealth has a statistically significant effect on non-durable consumption of the pre-retirees, and young-old and middle-old groups of older adults, and housing wealth has a much stronger effect on household expenditure than does financial wealth or real estate. It's found that the consumption elasticity is particularly greater for female-headed households living in SMA, residing in apartments, holding a lower debt-to-asset ratio and being a pensioner. The empirical findings imply that the old-old group of older adults is unlikely to actively tap into their housing windfalls since housing asset becomes the last to dispose in the course of an individual's life. As housing wealth effects are especially strong when liquidity constraints faced by older adults are removed, it's of significance to substantially reduce household debt before retirement in order to constantly maintain an adequate level of household consumption or to promptly prepare for future contingencies.

• Publications of The Korean Astronomical Society
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• v.30 no.2
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• pp.363-365
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• 2015

We study galaxies drawn from the semi-analytic models of Guo et al. (2011) based on the Millennium Simulation. We establish a set of four observationally measurable parameters which can be used in combination to identify a subset of galaxy groups which are old, with a very high probability. We therefore argue that a sample of fossil groups selected based on the luminosity gap will result in a contaminated sample of old galaxy groups. By adding constraints on the luminosity of the brightest galaxy, and its offset from the group luminosity centroid, we can considerably improve the age-dating.

• Journal of Family Resource Management and Policy Review
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• v.24 no.2
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• pp.89-108
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• 2020

The purpose of this study was to analyze the factors influencing life satisfaction in widowhood among older females. Using the sixth Korean Retirement and Income Study (KReIS) supplementary survey data, a total sample of 1,471 women aged 65 or older whose spouse had died were selected, divided into 508 young-old (65-74), 745 middle-old (75-84), and 218 oldest-old (85+). Then, factors influencing the life satisfaction of these three groups were analyzed, based on a combination of perceived health and interpersonal satisfaction levels. It was found that among the young-old group, a higher level of subjective health perception indicated by monthly income and material support and interpersonal satisfaction linked to more frequent participation in community gathering combined for an overall higher level of life satisfaction. For the middle-old group, higher life satisfaction was provided by monthly income, informational support, and material support for subjective health perception and no diseases for interpersonal satisfaction. The oldest-old group with higher life satisfaction referred to monthly income for subjective health perception and no experience in donation activities for interpersonal satisfaction. Based on these findings, this study provides implications for policy and practice to improve the life satisfaction of elderly women who have experienced their spouse's death.

• Journal of Korean society of Dental Hygiene
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• v.19 no.5
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• pp.699-713
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• 2019

Objectives: This study aimed to identify the relationships of oral and systemic health-related characteristics with health-related quality of life (EQ-5D) in the elderly, and factors related to quality of life were compared according to age subgroups classified as either younger (young-old) or older (old-old) than 75 years of age. Methods: Data acquired by the Sixth Korean National Health and Nutrition Examination Survey(KNHANES) from 2013 to 2015 were used, and the research target was 3,124 people aged 65 years or older. A complex samples general linear model was used to identify health-related quality of life factors. Results: Education, economic activity, depression, stress, regular walking, self-rated oral health, pronunciation problems, and unmet dental care had significant effects on quality of life in both young-old and old-old participants. Marriage, income, number of systemic diseases, sleeping, and chewing inconveniences were significant factors for the young-old but not in the old-old participants. Instead, obesity and drinking were identified as significant factors in the old-old participants. Conclusions: We reaffirmed that factors affecting health-related quality of life in older adults differed by age group. We also confirmed the impact of oral health-related characteristics on this quality. Therefore, to improve quality of life for older adults, it would be efficient to divide groups by age and develop and implement programs that take relevant factors into consideration.

• Journal of Families and Better Life
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• v.35 no.1
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• pp.1-16
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• 2017

Using data from the 2015 Korea Welfare Panel Study, we examined the predictors of psychological well-being (life satisfaction and depression) of single elderly people living alone across development stages (young-old, mid-old, and old-old) and suggested implications for elderly policy. For this purpose, we selected 1,364 elderly people who lived alone but preserved their family relationships, and were 65 years of age or older. Separate analyses were conducted for the three groups of single elderly people living alone. Overall, the psychological well-being of single elderly people living alone was higher than moderate level, and they were generally satisfied with their everyday lives and less depressed. However, there were group differences: the young-old group was more satisfied than the old-old group with in their everyday lives and less depressed than the mid-old and old-old groups. In the young-old group, life satisfaction was significantly associated with subjective health, non-physical conflict with family, disposal income, house ownership, dietary deficiency, cost of living, and public pension. In addition, depression was significantly associated with subjective health, non-physical conflict with family, dietary deficiency, and physical conflict with family. In the mid-old group, life satisfaction was significantly associated with subjective health, housing non-physical conflict with family, disposal income, and dietary deficiency. Depression was significantly associated with subjective health, housing deficiency. In the old-old group, life satisfaction was significantly associated with subjective health and non-physical conflict with family. Depression was significantly associated with subjective health. Therefore, 'health'and 'family'are important key concepts to consider when making elderly policy.

• Journal of Gastric Cancer
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• v.2 no.4
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• pp.200-204
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• 2002

Purpose: The aim of this study was to compare the clinicopathological characteristics and postoperative prognosis of two age groups with gastric cancer in order to establish the proper treatment strategy in these groups of patients. Materials and Methods: Among patients with gastric cancer who underwent a gastrectomy between 1990 and 1996 at the Department of Surgery, Kyungpook National University, the clinicopathological characteristics, including the postoperative survival, of patients younger than 40-years old were compared with those of patients over 69-years old. Results: During that period 1,125 gastric cancer patients underwent a gastrectomy. Among them, 111 patients ($9.9\%$) were less than 40-years old, and 96 patients ($8.5\%$) were over 69-years old. In the young group, 79 patients ($71.2\%$) had a poorly differentiated adenocarcinoma, and 59 patients from the elderly group ($61.5\%$) had a well- or moderately differentiated adenocarcinoma (P<0.05). Curative surgery was performed for 88 ($79.3\%$) patients in the young group and 78 ($81.3\%$) patients in the elderly group. This difference was not statistically significant. There was no statistically significant difference in the 5-year survival rates between the young and the elderly ($66.3\%\;vs.\;47.2\%$) groups, but the 5-year survival rate of the young group was significantly higher than that of the elderly group after a curative resection ($83.2\%\;vs.\;53.3\%$; P<0.05). Also the 5-year survival rate of the elderly group was significantly higher than that of the young group after a non-curative resection ($20.4\%\;vs.\;4.6\%$; P<0.05). Conclusions: For young patients, more efforts are needed to detect gastric cancer in its early stages so that a curative surgery can be performed. However, for the elderly, surgical treatment is recommended at any stage because of the relatively high survival rate, even after non-curative surgery.

• Fashion & Textile Research Journal
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• v.14 no.3
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• pp.448-453
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• 2012

This study aims to categorize age groups for shoes manufacturing including shoes size and boot tree development for Koreans. In order to carry out the research, the characteristics of different parts of foot in relation to size are analyzed according to age and sex, making use of human body measurement database. As a result of statistical analysis, it was found that the measurement items such as foot length, metatarsal tibiale, foot breadth and instep circumference of a person reached the range of standard deviation and average numerical figures of an adult group (18-24) from the age of 14 in men's case, and from 12 for women's case, which indicates the time of completion of their foot growth. Based on these findings where males of 14 years old and females of 12 are within similar measurement range to adults, it is necessary to categorize the age groups for shoe sizing system into the following four groups: males 13 years old or under, males 14 years old or over, females 11 years or under, and females 12 years or over. The proportional measurement produced by dividing each measurement item of foot parts by foot length was compared in an independent samples t-test, and there were meaningful differences according to different foot shapes of the two age groups of males 13 or under - males 14 or over, and females 11 or under - females 12 or over. Also, the independent samples t-test for the age groups of males 13 or under - females 11 or under, and males 14 or over - female 12 or over, showed similar meaningful differences, which indicates the differences in foot shapes of male and female during the period of growth.