• Korean Journal of Culture and Social Issue
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• v.30 no.3
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• pp.349-378
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• 2024

This study aimed to identify latent profiles of anxiety and anger symptoms experienced by Korean adults during the COVID-19 pandemic and factors that influence group classification. To this end, a latent profile analysis(LPA) was conducted on 1,434 Korean adults from February to March 2021 after the pandemic was announced. First, as a result of confirming the suitability of the latent model, a 5-class-model was found to have the best model fit with 'low anxiety/high anger group(Group 1)', 'low anxiety/low anger group(Group 2)', 'middle anxiety/middle anger group(Group 3)', 'middle anxiety/high anger group(Group 4)', 'high anxiety/high anger group(Group 5)'. Second, gender, economic status, emotion-focused coping, and dysfunctional coping were significant predictors of group classification. Third, there were differences between latent groups in PTSD symptom and suicidal ideation. Finally, discussions and implications of the study were discussed.

• Journal of the Korean Regional Science Association
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• v.34 no.2
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• pp.3-19
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• 2018

The objective of this study is to observe the efficiency of clinical performance on the supply and demand of medical resources in Korea. For the empirical analysis, we constructed the dataset on age standardized mortality rate, the number of physician, specialist, surgery, medical institution, ratio of general hospitals of 16 provinces in Korea from 2006 to 2013. The panel probability frontier model is employed as an analysis method and considered heteroscedasticity and autocorrelation of the error in panel data. In addition, the demographic and socioeconomic characteristics of the 16 provinces, unemployment rate, elderly population ratio, GRDP per capita, and ratio of hospitals in comparison to the general hospitals are used to find the effect on the technical efficiency of clinical performance on supply and demand of medical resources. The results are as follows. First, for the clinical performance, the supply side of human resources such as doctors and specialists and the demand side factors such as chronic illness clinic per unit population have a significant influence, respectively. Second, the technical efficiency of clinical performance on the supply and demand of medical resources of each input component was 59-70% in terms of clinical efficiency in each region. Third. estimates of technical efficiency of inputs that affect clinical performance showed a slight increase in all regions during the analysis period, but the increase trend decreased slightly. Fourth, the ratio of the elderly population and GRDP per capita have a positive influence on the technical efficiency of clinical performance on the supply and demand of medical resources. The difference of each efficiency by region is due to the regional differences of the input medical resources and the combination of them and the demographic and socioeconomic characteristics of the region. It is understood that the differences in technological efficiency due to the complexity of supply and demand of medical resources, demographic structure and economic difference affecting clinical performance by region are different.

• Proceedings of the Korea Water Resources Association Conference
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• 2005.05b
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• pp.149-154
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• 2005

최근에 이르러 농촌 인구의 도시유입으로 도시의 주거공간이 절대적으로 부족해지고 있으며, 이는 대도시의 아파트 가격 상승을 유발하는 등 부수적인 사회/경제적 문제를 일으키고 있다. 정부나 지방자치단체에서는 이러한 문제를 해결하기 위하여 대규모의 신도시 개발계획을 추진하고 있으며, 이러한 신도시 개발은 도시화로 인하여 환경적, 수문학적으로 부정적인 영향을 미치는 것으로 조사되고 있다. 도시화는 수문학적으로 산림이나 농경지와 같은 투수지역을 건물, 도로 등의 불투수지역으로 변화시키는 것이며 (Im 등, 2003), 이로 인하여 홍수파의 도달시간이 줄어들고 첨두유량이 증가하는 등의 수문변화를 수반하게 된다. 도로나 건물 등이 대부분을 차지하고 있는 도시지역에서는 지표면이나 식생으로부터 대기중으로 방출되는 증발산량이 농촌이나 산림지역보다 상대적으로 적으며, 강우시 토양중의 침투량과 지표면의 저류량도 도시지역에서는 매우 적게 나타난다. 신도시 개발 전후의 수문순환을 평가하는 방법 중의 하나는 개발예정지에 대한 장$\cdot$단기의 수문/수질 관측을 통하여 개발 전과 개발 후의 유출특성과 수질부하를 정량적으로 비교하는 것이다. 본 연구에서는 도시화로 인하여 대규모의 토지이용 변화가 예상되는 신도시 개발예정지구를 시험유역으로 선정하여 장기적인 수문/수질 모니터링을 실시하고자 한다. 또한, 시험유역에서 계측된 자료와 유역수문모형을 활용하여 개발전후의 홍수 및 유출특성을 분석하고 도시화가 하천의 수문 및 수질에 미치는 영향을 정량적으로 비교분석 함으로써 효율적인 저감 대책의 수립에 활용할 계획이다. 본 연구에서는 국내$\cdot$외의 시험유역의 운영 실태를 조사하고, 신도시 개발 등으로 인하여 급격한 도시화가 진행되고 있는 지구를 시험유역으로 선정하여 유역의 물순환 체계를 조사하고자 한다. 이를 위하여 신도시 개발지구와 도시정비사업지구를 대상후보지로 선정하여 개발계획 및 유역의 특성 등을 조사하고, 시험유역의 선정기준을 수립하여 연구의 목적과 부합되는 지구를 시험유역으로 선정하였으며 선정된 시험유역에 대하여 수문$\cdot$수질 조사 계획을 수립하고, 계측시설을 설치하여 시험운영을 실시하고, 향후 시험유역의 수문계측 및 관리방안을 수립하고자 한다.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.17 no.5
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• pp.1219-1226
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• 2013

The purpose of this study was aimed to analyze factors affecting on continuous intention to use of Smartphone based on the innovation diffusion theory. Also, by using the demographic characteristics were compared whether the difference in the loyalty on between user group of iOS and Android platform. Predictor factors were selected innovation, convenience, economic cost, social influence, communication channel, compatibility and complexity suggested on the innovation diffusion theory. Participants of this study were 278 Smartphone users in Busan city and Gyeongnam province in accordance with convenience sampling. IBM SPSS Statistics 19 were employed for descriptive statistics, Smart PLS(partial least squares) was employed for confirmatory factor analysis and path analysis of casual relationship among variables and effect. Analytical results show that all paths except path from complexity to the continuous intention to use and loyalty are significant. The comparison loyalty on between user group of iOS and android platform are significant. This study suggests practical and theoretical implications based on the results.

• Environmental and Resource Economics Review
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• v.21 no.4
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• pp.893-920
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• 2012

This study is to investigate causal relationship between individual life satisfaction and air pollution, using ordered probit model with the KLIPS panel dataset for 1998-2008. As determinants, both individual economic and socio-demographic characteristics are considered. Empirical results show that the degree of air pollution has negative effects on individual life satisfaction. The effects of other variables are similar to those of existing studies. This study found that life satisfaction increases along with income increase. However, at a certain point, the increase of life satisfaction becomes smaller even with an increase in income, indicating non-linear effect. It implies that the Easterlin's paradox can be applied to Korea's case. The increase of the other person's income measured by income per capita in the region where respondent resides has negative effects on life satisfaction. On the other hand, a person who has married, own house, stayed healthy, and highly been educated is likely to have higher life satisfaction. Additionally, a person with many household members, urban resident, unemployed or self-employed are negatively correlated with life satisfaction.

• Journal of Nutrition and Health
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• v.53 no.3
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• pp.255-270
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• 2020

Purpose: The purpose of this study was to identify the factors that influence the consumption of convenience foods among Korean adolescents. Methods: This study had a descriptive cross-sectional study. Data were obtained from the 15th (2019) Korea Youth Risk Behavior Web-based Survey, which involved a nationwide representative sample of 57,303 middle- and high-school students. Convenience-food consumption was defined by frequency of adolescents consuming convenience foods obtained from convenience stores, supermarkets, and cafeterias over the previous 7 days. The analyzed variables were related to sociodemographic, mental health, and health behavior. The Rao-Scott χ² test was applied to examine the difference in the rate of consuming convenience foods obtained from convenience stores according to each factor. Hierarchical logistic regression was conducted to examine the factors that influence convenience-food consumption among Korean adolescents. Results: It was found that 29.1% of Korean adolescents consumed convenience foods obtained from convenience store more than three times per week. The significant influencing factors were female sex; low subjective academic achievement, and subjective household economic status; high perceived stress; low subjective sleep sufficiency; experience of depression; suicidal ideation; lower physical activity; skipping breakfast; lower consumptions of fruit, milk, and vegetables; higher consumptions of soda drinks, sweet drinks, caffeine, and fast food; lower water intake; current smoking and drinking; drug use; and experience of violence. Conclusion: These findings provide a better understanding of the sociodemographic, mental-health, and health-behavior factors that influence the consumption of convenience foods among Korean adolescents. We suggest that differentiated policies, strategies, and nutrition education need to be developed and implemented, in order to address the above-mentioned factors and thereby reduce such behaviors among Korean adolescents.

• Journal of dental hygiene science
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• v.10 no.4
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• pp.251-257
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• 2010

The purpose of this study was to examine the demographic characteristics, oral health awareness and oral health behavior of 1,356 Korean senior citizens based on the fourth raw materials of the 2008 national health and nutrition survey, and to analyze their DMFS, DMFT and FS-T indexes, which were oral health indicators. The findings of the study were as follows: 1. The mean DMFS index of the Korean senior citizens was 26.62, and their average DMFT index was 6.76. Their mean FS-T index was 21.51. 2. Out of the demographic characteristics of the Korean elderly people, education made statistically significant differences to the DMFS(p<0.05) and FS-T(p<0.001) indexes, and whether they worked or not made statistically significant differences to the DMFT(p<0.01), DMFS(0.001) and FS-T(0.001) indexes. There were no significant gaps according to gender, age and presence or absence of a spouse. 3. The oral health awareness of the Korean senior citizens(subjective oral health status, whether to need a dental treatment, concern for oral health and mastication) had no statistically significant relationship to their DMFS, DMFT and FS-T indexes. 4. Among the oral health behaviors of the Korean elderly people, whether they got a dental checkup over the past year made statistically significant differences to the DMFT(p<0.01), DMFS(p<0.001) and FS-T (p<0.001) indexes, and there were statistically significant gaps in the DMFT(p<0.010, FS-T(p<0.01) and DMFS(p<0.001) indexes according to yesterday's toothbrushing frequency. The time when they went to a dentist made a significant difference to the FS-T(p<0.01) index only.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.20 no.7
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• pp.562-570
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• 2019

This study examined the factors affecting the underweight of Korean adolescents using data from Korea youth risk behavior web-based survey, which are national health statistics. This is a second data analysis study using the 13th Korea youth risk behavior web-based survey. The subjects were 48,242 adolescents who range from the first-year middle school students to the third-year high school students. The measurement variables were classified into demographic, physical activity, dietary, and mental health characteristics. The collected data were analyzed by logistic regression analysis. The factors affecting the underweight of Korean adolescents were sex, school type, academic performance, economic level, physical activities, weight control efforts, ramen intake, confectionary intake, stress, and subjective sleep fulfillment rate. Based on the results of this study, we need to search for the measures to help underweight adolescents recover their proper weight.

• 한국노년학
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• v.28 no.4
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• pp.1055-1068
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• 2008

Given the central role of sense of control in physical and emotional well-being, the present study examined the determinants of sense of control among Korean elders. We considered sociodemographic characteristics (age, gender, marital status, education, and self-perceived economic status), health-related factors (chronic conditions, functional disability, and sensory impairment), stressful life events, and network-related resources (network of relatives, network of friends, and filial satisfaction) as potential predictors. Sense of control was measured with Pearlin and Schooler's (1978) Mastery Scale. Hierarchical regression analyses with 291 Korean elders aged 60 or older (M age = 69.9) identified lower self-perceived economic status, more chronic conditions, greater functional disability, greater vision impairment, more stressful life events, and lower filial satisfaction as significant risk factors for a diminished sense of control. Because most of the identified risks represent normative experiences during later life, the results underscored the importance of preserving or promoting sense of control for older adults. Implications of the findings and recommendations for future studies are discussed.

• Journal of Korean Society of Forest Science
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• v.112 no.2
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• pp.248-257
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• 2023

Because of various societal changes, such as the recent improvement in income levels and extension of the flexible work system, the demand for forest recreation activities and their use patterns are undergoing a change. Accordingly, it is necessary to identify the characteristics of each type through the segmentation of the overall forest recreation and welfare markets and to plan differentiated policies for each market type. This study classifies the forest recreation and welfare activities according to four types of users (i.e., passive usage type, ordinary type, active lover type, and indifferent type) using the Latent Class Analysis and examines their demographic and socioeconomic characteristics to explain the differences between the groups. Three policy implications were derived from the results obtained: 1) the group experiencing forest recreation welfare is subdivided; 2) the socioeconomic characteristics that distinguish the groups undertaking forest recreation activities were identified; and 3) the policy targets and characteristics that can increase the experience of forest recreation welfare were identified. This study is insightful as it suggests differentiated policies for each group and proposes policy measures to move to the desirable group.