• Korea journal of population studies
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• v.20 no.1
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• pp.161-199
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• 1997

Unexceedingly rapid industrialization in Korea produced not only the improvement of living standards but many side effects including safety problems. This study, utilizing the survey data on 800 respondents on the quality of life and psycho-physical safety, reveals several findings as follows: 1) safety is one of the key dimensions of quality of life, 2) people usually take an equilibrium between risk and safety, although the equilibrium point differs by culture, social system, and other demographic traits, 3) accidents can be classified into three different types, demanding a different approach on the cause process, and solution in safety-related accidents. Major findings of this study implies that for the improvement of the quality of life, we should prescribe different policy measures according to the three different types of accidents.

• Journal of the Korean Society of Food Culture
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• v.30 no.5
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• pp.629-643
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• 2015

The goal of the current study was to analyze major factors for improvement of quality of life in contract foodservice customers. This study investigated how characteristics of customers, foodservice management, and competitors differ in different contract foodservice business environments in order to understand increasing concerns over health, in-house working, and the environment, which are directly connected to work and life satisfaction and company profits. For the foodservice business environment, this study classified environmental factors reported by Duncan (1972) into three factors: customer environment, foodservice management environment, and competitor environment. Multi-regression analysis was conducted on quality of life using the Korean version of the WHO Quality of Life Scale Abbreviated Version (WHOQOL-BREF). Sub-factors of the contract foodservice business environment included foodservice management environment, customer environment, and competitor environment in the order of importance. The results indicate that the foodservice management environment of the company or organization where the customer is employed has the most substantial influence on quality of customer life.

• Journal of Korean Society for Quality Management
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• v.50 no.3
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• pp.373-386
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• 2022

Purpose: This study proposes the application of Six Sigma management innovation method for more systematically enhanced execution of Quality by Design (QbD) activities. QbD requires a deeper understanding of the product and process at the design and development stage of the drug, and it is very important to ensure that no fault is fundamentally generated through thorough process control. Methods: Analyzing the background and specific procedures of quality improvement based on the drug design basis, and analyzing the key contents of each step, we have differentated and common points from the 6 Sigma methodology. We propose a new model of Six Sigma management innovation method suitable for pharmaceutical industry. Results: Regulatory agencies are demanding results from statistical analysis as a scientific basis in developing medicines to treat human life through quality improvement activities based on drug design. By utilizing the education system to improve the statistical analysis capacity in the Six Sigma activities and operating the 6 Sigma Belt system in conjunction, it helped systematically strengthen the execution power of quality improvement activities based on pharmaceutical design based on the members of the pharmaceutical industry. Conclusion: By using QbD Six Sigma, which combines quality enhancement based on pharmaceutical design basis and Six Sigma methodology suitable for pharmaceutical industry, it is possible to obtain satisfactory results both by pharmaceutical companies and regulators by using appropriate statistical analysis methods for preparing scientific evidence data required by regulatory.

• Korean Journal of Audiology
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• v.25 no.3
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• pp.138-145
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• 2021

Background and Objectives: This study aimed to evaluate the audiologic results after cochlear implantation (CI) in older patients and the degree of improvement in their quality of life (QoL). Subjects and Methods: Patients over 65 years old who underwent CI at implant center in Bozyaka Training and Research Hospital were included in this study (n=54; 34 males and 20 females). The control group was patient over 65 years old with normal hearing (n=54; 34 males and 20 females). We administered three questionnaires [World Health Organization Quality of Life-BREF (WHOQOL-BREF), World Health Organization Quality of Life-OLD (WHOQOL-OLD)], and Geriatric Depression Scale (GDS) to evaluate the QoL, CIrelated effects on activities of daily life, and social activities in all the subjects. Moreover, correlations between speech recognition and the QoL scores were evaluated. The duration of implant use and comorbidities were also examined as potential factors affecting QoL. Results: The patients had remarkable improvements (the mean score of postoperative speech perception 75.7%) in speech perception after CI. The scores for the WHOQOL-OLD and WHOQOL-BREF questionnaire responses were similar in both the study and control groups, except those for a two subdomains (social relations and social participation). The patients with longer-term CI had higher scores than those with short-term CI use. In general, the changes in GDS scores were not significant (p<0.05). Conclusions: The treatment of hearing loss with CI conferred significant improvement in patient's QoL (p<0.01). The evaluation of QoL can provide multidimensional insights into a geriatric patient's progress and, therefore, should be considered by audiologists.

• Journal of Audiology & Otology
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• v.25 no.3
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• pp.138-145
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• 2021

Background and Objectives: This study aimed to evaluate the audiologic results after cochlear implantation (CI) in older patients and the degree of improvement in their quality of life (QoL). Subjects and Methods: Patients over 65 years old who underwent CI at implant center in Bozyaka Training and Research Hospital were included in this study (n=54; 34 males and 20 females). The control group was patient over 65 years old with normal hearing (n=54; 34 males and 20 females). We administered three questionnaires [World Health Organization Quality of Life-BREF (WHOQOL-BREF), World Health Organization Quality of Life-OLD (WHOQOL-OLD)], and Geriatric Depression Scale (GDS) to evaluate the QoL, CIrelated effects on activities of daily life, and social activities in all the subjects. Moreover, correlations between speech recognition and the QoL scores were evaluated. The duration of implant use and comorbidities were also examined as potential factors affecting QoL. Results: The patients had remarkable improvements (the mean score of postoperative speech perception 75.7%) in speech perception after CI. The scores for the WHOQOL-OLD and WHOQOL-BREF questionnaire responses were similar in both the study and control groups, except those for a two subdomains (social relations and social participation). The patients with longer-term CI had higher scores than those with short-term CI use. In general, the changes in GDS scores were not significant (p<0.05). Conclusions: The treatment of hearing loss with CI conferred significant improvement in patient's QoL (p<0.01). The evaluation of QoL can provide multidimensional insights into a geriatric patient's progress and, therefore, should be considered by audiologists.

• Journal of Korean Society of Rural Planning
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• v.26 no.4
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• pp.93-105
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• 2020

This study is an experimental study that examines the policy attributes that local governments should choose to manage the quality of life of rural residents. The analysis data used raw materials for the survey of the welfare status of farmers and fishermen surveyed by the Rural Development Administration. The analysis method used Quantile Regression. The policy attributes of public services were interpreted on the basis of Peterson (1981)'s theory of policy types and the discussion of Holland (2015). According to the analysis results, the higher the quality of life, the greater the importance of the relationship between the safety sector and the neighbors. The effective policy attributes for improving quality of life in rural areas are the policies of local governments where policy benefits can directly go to individuals, or lead to social improvement. It shows that the higher the level of safety and the quality of life of our neighbors, the greater its importance.

• Journal of Korean Critical Care Nursing
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• v.12 no.1
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• pp.22-35
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• 2019

Purpose : This study was to determine the levels of environmental stressor, posttraumatic stress disorder, and quality of life in intensive care units (ICU) survivors after intensive care, and to explore the factors affecting posttraumatic stress disorder and quality of life. Methods: With a longitudinal survey design, data were collected from 116 patients who were discharged from the ICU of a university hospital. The environmental stressor, posttraumatic stress disorder, and quality of life were measured immediately following and 1 month after the ICU discharge. Results: Of all the subjects, 16.4% experienced posttraumatic stress disorder after discharge. Multiple regression analysis revealed that ICU environmental stressors, experience of ICU readmission, using psychotropic drugs and narcotic analgesics, and ICU admission after surgery or cardiac intervention accounted for 22.2% of posttraumatic stress disorder. Posttraumatic stress disorder and sedation status when entering ICU accounted for 28.3% of the quality of life 1 month after ICU discharge. Conclusion: Nursing interventions focused on ICU environmental stressors would not only reduce environmental stress but also contribute to the reduction of posttraumatic stress disorder and later improvement of quality of life.

• Journal of Korean society of Dental Hygiene
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• v.13 no.2
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• pp.305-313
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• 2013

Objectives : This study has attempted to investigate subjective oral health awareness, oral health behavior and analyze how the results are correlated with oral health-related quality of life against middle school students. Methods : A self-administered questionnaire survey was performed against 552 students from three middle schools in Changwon. A frequent analysis was conducted on research subjects' general characteristics, oral health awareness, oral health behavior. In addition, t-test and ANOVA were carried out to analyze oral health-related quality of life by the general characteristics, oral health awareness and oral health behavior. Results : In terms of oral health-related quality of life by general characteristics, the quality of life on oral symptoms was higher at lower school grades (p<0.05). In terms of social welfare, oral health-related quality of life was higher as parents' monthly income increased (p<0.05). Oral health-related quality of life was high in oral symptoms when there was no interest in oral health, in functional limitation, emotional welfare and social welfare when there is some oral health-related knowledge (p<0.05) and in all sub categories when oral conditions are healthy (p<0.05). Conclusions : The results of this study has come up with important information for improvement of oral health-related quality of life in middle school students by investigating the correlations between oral health awareness and oral health-related quality of life.

• Korean Journal of Occupational Health Nursing
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• v.16 no.2
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• pp.168-176
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• 2007

Purpose: This study was to investigate the factors influencing on the quality of life (QOL) among herniation of nucleus pulposus (HNP) patients caused by occupational accidents. Method: 203 patients of HNP were recruited. 106 patients were occupationally injured workers who benefited from workmen's compensation scheme (PWCS group), and 43 patients were non-occupationally injured workers benefiting from national health insurance (PNHI group). Questions of QOL items were used by Korean version of SBQOL (SmithKlein Beecham's Qality of Life). Result: The quality of life of PWCS group measured by SBQOL was significantly lower than that of PNHI group. In PWCS group, SBQOL was significantly lower in patients with 40s of their age, 5 years or longer of treatment duration, no expectation of return to work, no expectation of recovering subject's health, and with loss of employment than rest of the patients in each category. Expectations of recovering subject's health showed to be affect factors on QOL both the PWCS and PNHI groups. Conclusion: It suggested that betterment of expectation of recovering patient's health and an administrative system for returning to work of the occupationally injured HNP patients during treatment be necessary for improvement of their quality of life.

• Journal of muscle and joint health
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• v.13 no.1
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• pp.20-30
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• 2006

Purpose: To determine the effect of Tai Chi exercise program on fatigue, stress, and quality of life in middle aged women. Method: The study was designed as a nonequivalent control group pretest-posttest quasi-experimental study. Thirty subjects were assigned for experimental group and thirty four subjects were assigned for control group. The subjects in the experimental group were participated in Tai Chi exercise program for 60 minutes per session 3 times a week for 8weeks. Tai Chi exercise program consists of 10 minutes warm-up, 45 minutes main, and 5 minutes cooling down exercises. In order to evaluate the effect of Tai Chi exercise program, fatigue, stress, and qualify of life were assessed by measuring the condition of the participants in respect of fatigue, stress, and qualify of life with questionnaire. The data were analyzed by using $x^2-test$, Fisher's exact test, t-test by a SAS-pc+ 8.12 program. Result: After 8 weeks Tai Chi exercise program, there were significant improvement in fatigue, stress, and quality of life in middle aged women. Conclusion: Tai Chi exercise program can be an effective nursing intervention to improve fatigue, stress, and quality of life in middle aged women.