• Korea journal of population studies
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• v.28 no.2
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• pp.33-62
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• 2005

This study aims to explain the current upheaval in marriage that many young Korean men and women postpone or deny their marriage. In order to explain the delayed marriage, we need to understand the taste by which men and women choose their partners, the opportunity by which they find their ideational half in reality, and the context in which these values and opportunities of marriages intersect. This study examines the way in which the value and opportunities of marriage among Korean men and women have intersected differently in the changing economic conditions. Using KLIPS(Korea Labor Income Panel Survey, 1998-2002), differential effects of education and occupational status on marital time according to marriage cohort and gender are analyzed. Results find that the opportunity of marriage among men turns out to have been stratified significantly according to their educational achievement and labor status since the 1990s. For women, education and economic activities are likely to influence marriage decision in a discordant way; during the period of 1990-997, highly educated women are more likely than their counterparts to be married earlier while there is no significant difference according to economic activities. This implies that status homogamy has been intensified since the 1990s and many women with high motivation for social status are able to achieve a vicarious social status through marriage in a prosperous economy. For women married after 1998, however, the educational effect is insignificant but economic activity contributes to delaying marriage. This suggests that under the economic restructuring since the late 1990s, the constraint of opportunities finding decent jobs particularly for men results in the contingent change in women's perception about family roles and economic activities by reducing their expectation to achieve a vicarious status through marriage, but increasing their motive for their own economic activities.

• Korean Journal of Social Welfare Studies
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• v.49 no.4
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• pp.5-30
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• 2018

The purpose of this study was to develop and empirically evaluate a theoretical model that delineated the processes whereby parents' socioeconomic status affected students'academic achievement via parental support and students' ego-resilience. The proposed model was tested with the first and second wave of a cohort sample of the first grade middle school students from the Korean Children Youth Panel survey by using linear structural relations techniques. The results of analysis showed firstly that parents' socioeconomic status, parental support and students' ego-resilience directly affected the level of students'academic achievement with statistical significance. Secondly, parental support, the proxy of social capital of the family, was contingent upon the parents'socioeconomic status. Thirdly, in addition to its direct effect, parents'socioeconomic status gave indirect effect on students' academic performance through parental support and ego-resilience. Based upon these results implications for social work intervention were provided.

• Childhood Kidney Diseases
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• v.18 no.2
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• pp.57-63
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• 2014

A number of kidney diseases of childhood may present as isolated proteinuria or/and hematuria, without any overt signs or symptoms. Urinalysis is a simple and inexpensive test used to evaluate various renal disorders. A school urine screening (SUS) program for kidney disease was conducted in Korea in 1998. Several research reports, including case reports and systemic reviews of SUS data, claimed that early detection and confirmatory diagnosis by renal biopsy seems to be helpful for determining the prognosis and intervention of progressive chronic renal disease. However, there is no global consensus as to whether screening for chronic kidney disease (CKD) should be undertaken in children and adolescents. This paper reviews the SUS for CKD in Korea, including the history and structure of the program, its assessment, related research, and associated problems.

• Journal of the Korean Society of Food Science and Nutrition
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• v.43 no.10
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• pp.1467-1476
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• 2014

Recent studies have shown that insufficient or deficient vitamin D status may be linked to increased risk of depressive conditions or depression. The aim of this study was to review all available evidence on vitamin D, depression, and any association between them. Cross-sectional, case-control, and cohort studies have reported contradictory results. Some have reported that low levels of vitamin D may be associated with higher risk of depression or depressive symptoms while others reported that vitamin D status may not be related to depression. Recent clinical trials examining the effects of vitamin D supplementation on depression have also showed discrepant results. However, meta-analysis study results are consistent regarding the beneficial effects of vitamin D. Several mechanisms that account for these beneficial effects of vitamin D on depression have been reported but remain largely speculative. Vitamin D deficiency is very common, and prevalence of depression is increasing in the Asian population, especially females. However, limited literature is available on this population. Considering research results of a potential inverse association between vitamin D level and prevalence of depression, it is important to advance our understanding of the role of vitamin D in depression and conduct well-designed prospective trials in the Asian population.

• Journal of dental hygiene science
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• v.17 no.2
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• pp.160-167
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• 2017

The purpose of this systematic review was to investigate the association between periodontal disease and chronic kidney disease. A search of Embase, PubMed and The Cochrane Library databases was performed up to April 17, 2016. Article selection was based on cohort study design and the study subjects were patients with periodontal disease or severe periodontal disease. The final result was development of chronic kidney disease and kidney function decrease based on the estimated glomerular filtration rate values. The quantitative synthesis of the final selected articles was assessed using Review Manager statistical analysis software. A fixed-effects model meta-analysis was performed to estimate the degree of association between periodontal disease and chronic kidney disease. The search strategy identified 3,018 potentially eligible articles, of these, four studies were finally selected for meta-analysis, revealing that periodontal disease was significantly associated with the risk of developing chronic kidney disease (odds ratio, 1.65; 95% confidence interval, 1.44~1.90; p<0.001). In order to prevent the development of chronic kidney disease and kidney function decrease it is important to prevent periodontal disease, as well as minimizing the traditional risk factors known to reduce the quality of life of patients and increase disease burden.

• Journal of agricultural medicine and community health
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• v.45 no.2
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• pp.79-88
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• 2020

연구목적: 이 연구는 지역사회 치면열구전색 사업의 치아우식 예방효과를 평가하고자 시행되었다. 연구방법: 연구 대상자는 2005년부터 2008년까지 김천시에 소재한 34개 초등학교에 재학 중인 9,001명 중 2005년 최초 구강검사 당시 상·하악 제1대구치에 치아우식이 없는 치아와 학생 4,768명을 최종 대상자로 선정하였다. 2005년도에 치면열구전색을 실시한 1,478명에 대해 3년간 추적조사가 이루어졌고, 2006년에 치면열구전색을 실시한 999명에 대해 2년간 추적조사를 하였으며, 2007년에 치면열구전색을 실시한 458명에 대해 1년간 추적조사 후 기술통계 및 교차분석을 시행하였다. 연구결과: 치면열구전색 실시군의 DMFT rate는 1년 추적 후 1.4%에서 3년 추적 후 4.1%, DMFT index는 1년 추적 후 0.18개에서 3년 추적 후 0.70개로 추적기간이 길어질수록 높게 나타났다. 1일 평균 칫솔질 횟수는 DMFT rate와 DMFT index에 영향을 미쳤다. 즉 치면열구전색을 실시한 대상자라도 1일 평균 칫솔질 횟수가 적으면 DMFT rate와 DMFT index는 높게 나타났다. 결론: 치면열구전색을 실시한 대상자에서도 올바른 칫솔질에 대한 구강보건교육이 선행되어야 한다.

• Journal of Convergence for Information Technology
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• v.10 no.7
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• pp.194-206
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• 2020

This study aims at creating a daily life satisfaction improvement plan by using motivation for seeking need for rehabilitation services and self-efficacy in individuals who returned-to-work and reemployed injured workers. The subjects of this study were 2,642 returnees and 3,742 reemployed individuals who participated in the first to fifth year survey of the first cohort of the Panel Survey of Workers' Compensation Insurance. The analysis checked the mediating effect through the multiple regression analysis and bootstrapping. The result indicated the need for rehabilitation services had negative impact on self-efficacy and daily life satisfaction whereas self-efficacy had a positive effect on daily life satisfaction and played a mediating role between the need for rehabilitation services and daily life satisfaction. Based on these results, a need for the advancement of social psychological rehabilitation program and establishing an integrative rehabilitation process were identified.

• 한국노년학
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• v.41 no.3
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• pp.397-420
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• 2021

The paper tried to determine relationships between volunteering and hypertension risks, symptom betterment, activity difficulty occurrences, and medicine treatment among middle-aged and older adults, with a prospective cohort study. Multilevel mixed-effects generalized linear models were used for the analysis of longitudinal panel data collected over 10 years from 2008 to 2018, using 5,867 cohort samples. The results showed that those who volunteered at least 200 hours per year were 3.4 times more lower than not-volunteering in risks of hypertension, those who volunteered yearly 50~99 hours were a lot more improved than not-volunteering in the symptom betterment, those who volunteered yearly at least 200 hours were 7.7 times lower than not-volunteering in activity difficulty occurrences, and those who volunteered yearly 50~99 hours were 2.5 times lower than not-volunteering in the occurrences of medicine treatment. These indicate that volunteering among middle-aged and older adults may have health benefits against incident hypertension. Finally the thesis discusses the study limitations, future directions of studies, and the practices implications.

• Journal of the Korean Applied Science and Technology
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• v.38 no.2
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• pp.543-550
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• 2021

The purpose of this study was to verify the mediating effect of the change of grit in the relationship that the change of exercise time of adolescents leads to the change of self-esteem. The data of 2,438 students (male = 1,327, female = 1,111) were used for the analysis, excluding cases including missing values in the data from the wave 1 and wave 2 of the Korean Children and Youth Panel 2018. The standardized residual score generated through regression analysis from the values in wave 1 to the values in wave 2 was used as a variable for the amount of change. As a results, the correlation between the amount of change in all three variables was found to be significant. Result of the hierarchical regression analysis revealed that it was confirmed that the partial mediating effect that the change of exercise time directly or indirectly affects the change of self-esteem through the change of grit is significant. These results indicate that adolescents, exercise time is gradually decreasing as the grade goes up, and this has an effect on the reduction of grit and self-esteem.

• Journal of Internet Computing and Services
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• v.22 no.1
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• pp.89-98
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• 2021

Community-acquired pneumonia (CAP) is a major risk factor of mortality in chronic obstructive pulmonary disease (COPD). Streptococcus pneumoniae (colloquially known as pneumococcus) is one of important pathogens of CAP in patients with COPD. Preventive interventions for pneumonia include pneumococcal and influenza vaccinations. A prospective, cohort study has been performed to investigate the protective effects of pneumococcal and influenza vaccinations on the severity of community-acquired pneumonia requring hospital admission in patients with COPD. Seven university-affiliated hospitals in Korea have participated in the study. The aim of this study was to construct an online registration system for the multi-institutional researchers that facilitates efficient collection and management of COPD patient data. This study has presented three basic strategies-accurate data input, convenient data completion, and real-time data management-to supplement the demerits of existing offline clinical study. The proposed online registration system has already been applied to a multi-institutional clinical study and was acknowledged for its high performance.