• Korean Journal of Health Education and Promotion
• /
• v.28 no.2
• /
• pp.125-137
• /
• 2011

Objectives: This paper estimates willingness to quit smoking(WQS) cigarette price among Korean adults and examines the factors related to WQS price. Methods: Data on 799 participants in a random dial telephone survey with questions designed based on Contingent Valuation Method were analyzed by conducting t-test, ${\chi}^2$ test, and OLS. Results: The median and the mean of the distribution of WQS prices were 3,000 won and 3,862 won, respectively. Age, household income, the amount of smoking, and the length of smoking period were related to WQS prices. Conclusions: The results show that increase in cigarette price could be an effective policy tool to make smokers quit smoking when the increase in cigarette prices is substantial enough to be over WQS prices. This implies that with its effect on low-income smokers to consider quitting smoking or reducing the amount of smoking, increase in cigarette price can be income-progressive in the long run by reducing the amount of expenditure spent on cigarette purchase.

• Radiation Oncology Journal
• /
• v.37 no.1
• /
• pp.13-21
• /
• 2019

Purpose: Glioblastoma (GBM) carries a high propensity for in-field failure despite trimodality management. Past studies have failed to show outcome improvements with dose-escalation. Herein, we examined trends and outcomes associated with dose-escalation for GBM. Materials and Methods: The National Cancer Database was queried for GBM patients who underwent surgical resection and external-beam radiation with chemotherapy. Patients were excluded if doses were less than 59.4 Gy; dose-escalation referred to doses ≥66 Gy. Odds ratios identified predictors of dose-escalation. Univariable and multivariable Cox regressions determined potential predictors of overall survival (OS). Propensity-adjusted multivariable analysis better accounted for indication biases. Results: Of 33,991 patients, 1,223 patients received dose-escalation. Median dose in the escalation group was 70 Gy (range, 66 to 89.4 Gy). The use of dose-escalation decreased from 8% in 2004 to 2% in 2014. Predictors of escalated dose were African American race, lower comorbidity score, treatment at community centers, decreased income, and more remote treatment year. Median OS was 16.2 months and 15.8 months for the standard and dose-escalated cohorts, respectively (p = 0.35). On multivariable analysis, age >60 years, higher comorbidity score, treatment at community centers, decreased education, lower income, government insurance, Caucasian race, male gender, and more remote year of treatment predicted for worse OS. On propensity-adjusted multivariable analysis, age >60 years, distance from center >12 miles, decreased education, government insurance, and male gender predicted for worse outcome. Conclusion: Dose-escalated radiotherapy for GBM has decreased over time across the United States, in concordance with guidelines and the available evidence. Similarly, this large study did not discern survival improvements with dose-escalation.

• The Journal of the Korea Contents Association
• /
• v.15 no.5
• /
• pp.488-497
• /
• 2015

The recent increase of chonsei has raised the degree of lease burden of households, and a new residential lease price index needs to be introduced to measure such degree of lease burden. In order to convert the burden into an index, the calculation method of the K-HAI, which is announced by the Korea Housing Financing Corporation, is applied by replacing house purchase with lease. From the calculation, the residential lease prices index of the first quarter of 2014 is estimated to be approximately 114, indicating that the cost of lease exceeds 35% of income. The result of analysis on the trend of the residential lease prices index from the first quarter of 2012 to the present in Seoul indicates that the residential lease prices index in Seoul has continued to increase, compared to that of the entire country. The results of this study will be a foundation to find a solution for the stabilization of chonsei and investigate the degree of lease burden by region when establishing a sustainable housing policy.

• Journal of Families and Better Life
• /
• v.32 no.4
• /
• pp.41-56
• /
• 2014

The purpose of this study is to investigate the relationship between the expenditure on private education and stress from private education, and the role conflicts of the mothers of junior and senior high school students. The subjects were 300 mothers of students who are enrolled in junior and senior high school and receiving private education in Seoul and its suburbs. The results were as follows: First, the level of stress from private education was found to be higher than the scale range of the median, whereas the degree of role conflicts was slightly lower than the scale range of the median. Second, a hierarchical regression analysis was performed by using the expenditure on private education and stress from private education as independent variables and the socio-demographic variables of mothers as the control variables in order to identify their effect on the role conflicts of the mothers of the junior and senior high school students. The results show that the age of the mother, the household monthly income, the monthly expenditure on private education, and stress from private education were significantly related to the role conflicts of the mothers. That is, the older the age of the mother, the lower the level of monthly income, the lower the level of the monthly expenditure on private education, and the higher the level of stress from private education, the greater the degree of the role conflicts of the mother.

• Management & Information Systems Review
• /
• v.17
• /
• pp.335-358
• /
• 2005

The purpose of this study is in investigating the tax clients for their relationship with tax preparers and the general levels of characteristics for the taxation objects, and establishing significant relationships of the two major factors-satisfaction factors and characteristics of the clients-on the satisfaction of the clients. The results of this study will provide an important basic data required for rational management of tax clients. A total of 20 sub-hypotheses were used, which can essentially be summarized into the following three major statements. The hypotheses investigation results can be summarized as below. First, as for the characteristic factors of the preparer, the taxation knowledge factor and the client satisfaction factor were found to be in a significant median positive relationship, and the experience factor and the client satisfaction factor were found to be in a relatively less significant relationship. Second, the factor on the relationship with the preparer and the client satisfaction factor were all found to be in a highly significant positive relationship. Third, in order to measure the characteristics of the taxation objects, relationships between potential tax reductions factor, probability of taxable income adjustments factor, and the client satisfaction factor were analyzed, and they were found to have positive relationships of relatively high significance. Fourth, the average for the client satisfaction factor by industry was found to be the highest for the manufacturing industry, followed by wholesalers and retailers. Other sectors showed little deviation from the average of 4.9, but this factor was not statistically significant. Fifth, the average difference examination of the satisfaction levels for the clients with or without experience of taxable income adjustments showed that those without experience of taxable income adjustments had higher satisfaction levels. Sixth, 12 study hypotheses had been proposed in order to investigate the relationship between the client satisfaction factors and the client satisfaction levels according to the characteristics of clients. Among the 12 sub-hypotheses, except for the study hypothesis of investigating the relationship between the tax preparer's taxation knowledge and the client's satisfaction levels according to the experience of taxable income adjustments, 11 study hypotheses were all not adopted.

• Journal of the Korean Home Economics Association
• /
• v.43 no.1 s.203
• /
• pp.129-144
• /
• 2005

The purposes of this study were to find the general trends and differences factors influencing single mothers' psychological well-being, and, analyze the effects of family, and social variables on their psychological well-being. The subjects were the 284 single mothers living in Kwangju and Chonnam. The data were analyzed with frequency, t, F, and Pearson's r test, and by multiple regression using SPSS. The major findings were as follows: 1. Single mothers' family variables were lower than the median, but instrumental support was higher than emotional support. Single mothers' psychological well-being was found to be around that of the median value. 2. Single mothers' psychological well-being was significantly different from family stress, family resources, mother-child conflicts, income, emotional support, participation of education program, and institutional support. 3. Life satisfaction of single mothers was influenced by institutional support, family stress, family resources, and emotional support. Depression among single mothers was influenced by family stress, family resources, mother-child conflicts, and institutional and emotional support.

• Journal of the Korean Home Economics Association
• /
• v.40 no.4
• /
• pp.139-152
• /
• 2002

This study was performed to estimate living cost for the elderly couple living in a city in Korea. Living cost means expenditure per month for elderly couple. It was assumed that the elderly couple will need different living cost according to their circumstances. The circumstances are health status, retirement status, and the level of living they want. The subjects were the elderly couple households over the age 65 of household head. Total number of subject was 1,649 households. Used data was Annual Report surveyed by National Statistical Office on the Family Income and Expenditure. Analysis of data was done through frequency, percentage, means, median using SAS Program. The results of this study were as follows: Their standard living cost was 844,980 won by pure relative standard line and 842,300 won by quasi relative standard lines. And minimum living cost was 713,400 won by the former, by the latter was 557,600 won (3/2 of median). And abundant Living cost was 1,068,020 won by the former, by the latter 1,263,450 won. The living cost of elderly households was about 81-83%, comparing with non-elderly households. Among the item of expenditure, the proportion of housing and medical care cost was larger than any other items.

• Journal of the Korean Home Economics Association
• /
• v.41 no.1
• /
• pp.139-153
• /
• 2003

The purposes of this study were to find the general trends of aged couples' marital conflict, life satisfaction, and to examine relationships between husbands' marital conflict, life satisfaction and those of wives, and to investigate effective variables influencing on their life satisfaction. The subjects were the 218 couples over 60 years old living in Gwangju. Trained researchers interviewed the subjects with structured questionnaires. Data were analyzed with mean, sd, Cronbach' α, paired-t test, Pearson's correlation and Hierarchical Regression using SAS program. The major findings were as follows; 1. The marital conflict scores of husbands and wives were lower than median and wives' marital conflict scores were higher than those of husbands. The average scores of life satisfaction were higher than median and Husbands achieved higher scores in life satisfaction than wives. 2. Husbands' marital conflict and life satisfaction were positively related to those of wives. 3. Husbands' life satisfaction was influenced by health, self-esteem, filial support, acquaintances' support, marital conflict. Wives' life satisfaction was influenced by income, health, marital intimacy, filial support, acquaintances' support, marital conflict. Spouses marital conflict was significantly effective variable to wives' life satisfaction, but no significant to husbands'.

• Journal of Energy Engineering
• /
• v.22 no.3
• /
• pp.245-249
• /
• 2013

This paper attempts to estimate the kerosene demand function in Korea over the period 1981-2012. As the kerosene demand function provides us information on the pattern of consumer's kerosene consumption, it can be usefully utilized in predicting the impact of policy variables such as kerosene price and forecasting the demand for kerosene. We apply least absolute deviations and least median squares estimation methods as a robust approach to estimating the parameters of the kerosene demand function. The results show that short-run price and income elasticities of the kerosene demand are estimated to be -0.468 and 0.409, respectively. They are statisitically significant at the 1% level. The short-run price and income elasticities portray that demand for kerosene is price- and income-inelastic. This implies that the kerosene is indispensable goods to human-being's life, thus the kerosene demand would not be promptly adjusted to responding to price and/or income change. However, long-run price and income elasticities reveal that the demand for kerosene is price- and income-elastic in the long-run.

• Journal of Family Resource Management and Policy Review
• /
• v.25 no.4
• /
• pp.43-54
• /
• 2021

The purpose of this study was to explore the effects of perceived care-related burden and social support on life satisfaction and the moderating effect of social support from elderly spouses caring for their elderly partners with dementia. The subjects were 165 spouses aged over 60 years, caring for their elderly partners afflicted with dementia, and living in Seoul and Gyeonggi Province. The analysis results are as follows: First, the quantified total care-related burden shouldered by the participant spouses was 3.76 points (SD = .57), which was slightly higher than the median value. In the case of social support, informal support was scored 2.65 (SD = .78), and formal support was scored 2.60 (SD = .77), which was lower than the median value. Life satisfaction earned a score of 3.11 points (SD = .78), which somewhat exceeded the median. Second, subjective health status, income level, burden from social activity, and informal support influenced life satisfaction. Put differently, the higher the subjective health status of a caring spouse, the higher the income level, the lower the social activity burden, the stronger the informal support, and the greater the life satisfaction. Third, the interaction terms of social activity burden and informal support were significant. Therefore, informal support had a moderating effect on the relationship between social activity burden and life satisfaction among the elderly with dementia. In other words, even though the caring spouses experienced a burden from social activities, the higher the frequency with which they accessed informal support, the lower the decrease in life satisfaction.