• Journal of Korean society of Dental Hygiene
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• v.15 no.3
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• pp.505-512
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• 2015

Objectives: The purpose of this study was to compare the oral health behavior in adolescents between multicultural and ordinary Korean families. Methods: The subjects were 66,797 adolescents who were derived from the web-based survey of the National 2014 Korean Youth Risk Behavior of Korean Center for Disease Control. A self-reported web-based questionnaire survey was carried out from June 1 to 30, 2013. A multicultural family is defined as the immigrant mother and child in the study. The variable included demographic, socioeconomic, and oral health related behavior. The demographic characteristics included sex, age, residence area, subjective academic achievement, type of family, education of parents, subjective economic status, and nationality before marriage. Data were analyzed by PASW statistics 18.0. Results: Tooth brushing frequency was closely related to family type, age, residence area, academic achievement, residential type, education level of the parents, and economic status. Conclusions: It is necessary to support oral health services and oral health promotion programs for the adolescents in the multicultural family.

• Health Policy and Management
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• v.18 no.4
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• pp.1-22
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• 2008

Burden of disease analysis provides a unique perspective on health by integrating fatal and non-fatal outcomes, yet allows the outcome of two classes to be examined separately. Although many studies have shown the inequality in health outcomes across socioeconomic status (SES), an analysis and comparison of Disability Adjusted Life Year (DALY) between different socioeconomic groups has been rare. This paper calculates the DALY and analyzes the distribution of DALYs for different SES. This study draws from 3,278 cases from the survey on "The Livelihood and Welfare Needs of the Elderly (2004)". It first provides a comprehensive assessment of the burden of 10 chronic diseases of the elderly based on DALY. Then this paper analyzes inequalities in the burden of disease by the levels of SES such as education, income, family size, occupation, and subjective economic conditions. For the elderly, the burden of disease is the highest for hypertension, arthritis and cancer. DALY rate per 1,000 people for the most socio-economically disadvantaged group is expressed as a multiple of the standardized rate for the least disadvantaged group (Rate Ratios). Family size is strongly related to. the difference in the burden of disease between SES groups, and the elderly Who live alone have higher DALY rate than those who live with their family. Other significant variables related to SES groups include subjective economic conditions, occupation, elderly income, and household income.

• Korean Journal of Occupational Health Nursing
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• v.6 no.1
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• pp.44-52
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• 1997

This study was carried out from January to March in 1996 to investigate subjective symptoms of cumulative trauma disorder (CTD). This survey was done by questionnaire of the Personal Ergonomics Profiles (PEP), which was developed by Johnson & Johnson. Number of respondents was 365 employees who were working in three furniture manufactories in Kwangjoo at Province Kyungki. The results were as follows : 1. There was no difference between clerical and labor workers in pain frequencies classified by general characteristics. However, labor workers showed statistically significant differences between working process in pain frequencies. Employees undertaking lifting work showed highest scores in frequencies of pain complaints. Comparing the number of pain occurrences, the married and the female was resulted in high score than the single and the male. There was no differences between ages and working experiences in group. 2. According to the mean frequency of body pain, the back was the most part to be complained in 1. 16 and followed by shoulder, neck, knee, wrist/hand, and forearm in order. Although, the study results showed that the workers working in furniture manufacture were not shown that they have had severe CTD, the female, the married and the the lifting workers were indicated as risk groups to CTD. Therefore, the development of backache prevention programe is necessary to manage pain control and to reduce health risks of CTD employees in their work environment.

• The Korean Journal of Rehabilitation Nursing
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• v.6 no.1
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• pp.14-25
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• 2003

Purpose: To investigate nutritional status of inpatients by using subjective, and objective evaluation methods and to find the relationship between them. Method: The subjects were 101 inpatients with medical health problems at a university hospital. Nutritional status was evaluated by the Subjective Global Assessment(SGA) and physical assessment including percentage of weight loss, serum albumin, hemogloin, and hematocrit. Data were analyzed using frequency, percentage, mean, Kendall's tau. Results: Grouping by the SGA, 61.4% were classified as severe malnutrition group. When applying the objective methods(physical assessment), 1.9~42.6% were diagnosed as malnutrition each item. The percentage of weight loss during previous 1~6month(${\tau}=.43{\sim}.54$, P=.0001), serum albumin(${\tau}=-.26$, P=.0003), hemoglobin of male(${\tau}=-.38$, P=.0001), and hematocrit of male(${\tau}=-.34$, P=.0001) were significantly correlated with SGA score. The coincidence rate of nutrition evaluation between the objective methods and SGA were 27.7~35.6%, 20.8%, 47.5%, 58.4% in percentage of weight loss, albumin, hemoglobin, and hematocrit. Conclusion: These findings showed a majority of inpatients were exposed to the risk of malnutrition. We recommend to evaluate inpatients' nutritional status periodically and to develop nursing intervention to solve their nutritional problems.

• Journal of Korean society of Dental Hygiene
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• v.13 no.3
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• pp.525-534
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• 2013

Objectives : This study aimed to improve school health program by investigation of several variables through educational diagnostic factors which influence the level of subjective oral health perception and DMFT of students on the basis of PRECEDE model. Methods : A total of 286 high school students in Busan completed the self-reported questionnaire from September 3 to 28 in 2012. Results : 1. Social and epidemiologic diagnosis suggested that the level of subjective oral health perception of male students was not better than that of female students and DMFT number of the male was more than that of the female(p<0.001)(p<0.001). 2. Oral health diagnosis indicated that once a day tooth brushing group showed lower level of oral health perception(p<0.001) and high DMFT number(p<0.001). 3. Predisposing factor of educational diagnosis implied that more than 4 times a day snack intake group and sweet diet and soda friendly group showed lower level of oral health perception and high DMFT number(p<0.001). 4. Tooth brushing of the reinforcing factors had the most important effect on the level of oral health perception and the number of dental caries. Daily snack intake was the most important effect on DMFT number. Conclusions : The informed consent from each family was the important factor in implementing PRECEDE model. School health program improved oral health care. Oral health program can correct the risk oral health behavior in children and adolescents.

• Journal of the Korean Operations Research and Management Science Society
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• v.20 no.2
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• pp.39-60
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• 1995

In this paper, an integration of stochastic dynamic programming (SDP), integer goal programming (IGP) and analytic hierarchy process (AHP) is proposed to handle multiobjective-multicriteria sequential decision making problems under uncertainty inherent in R & D investment planning. SDP has its capability to handle problems which are sequential and stochastic. In the SDP model, the probabilities of the funding levels in any time period are generated using a subjective model which employs functional relationships among interrelated parameters, scenarios of future budget availability and subjective inputs elicited from a group of decision makers. The SDP model primarily yields an optimal investment planning policy considering the possibility that actual funding received may be less than anticipated one and thus the projects being selected under the anticipated budget would be interrupted. IGP is used to handle the multiobjective issues such as tradoff between economic benefit and technology accumulation level. Other managerial concerns related to the determination of the optimal project portifolio within each stage of the SDP model. including project selection, project scheduling and annual budget allocation are also determined by the IGP. AHP is proposed for generating scenario-based transformation probabilities under budgetary uncertainty and for quantifying the environmental risk to be considered.

• Journal of Acupuncture Research
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• v.18 no.6
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• pp.70-83
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• 2001

Objective : In order to investigate symptoms prevalence related to visual display terminal(VDT) syndrome, and to evaluate the variables affecting the development of the VDT syndrome. Methods : a questionnaire survey was conducted on 127(81 men and 46 women) VDT operators who had been studied in Soongsil University graduated school in Seoul. Result : As a result of analysis with data collected by questionnaire, l. Variables affecting the level of general symptoms were sex, the total time of VDT operation per day, type of typewriting, location of keyboard, illumination, VDT working duration, the time of VDT operation without rest. 2. Variables affecting the level of eye symptoms were sex, the total time of VDT operation per day, type of typewriting, VDT working duration, illumination, method of eye-resting. 3. Variables affecting the level of musculoskeletal symptoms were sex, the total time of VDT operation per day, the time of VDT operation without rest, illumination. Conculsions : In order to protect workers from VDT syndrome, it is urgently required to implement standard management recommendations including restriction of VDT working hours and allowance of more sufficient resting time for VDT workers.

• Journal of Korean society of Dental Hygiene
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• v.11 no.3
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• pp.405-417
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• 2011

Objectives : A precedent research has documented that indoor air pollution is closely associated with increased the risk of symptom and decreased in job satisfaction. This study was conducted in an effort to assess the relationship of indoor air quality to self-perceived symptom and satisfied with working environment. Methods : This research is based on self-filling survey which 393 dental hygienists who work in seoul and Jeon-nam area participated on October 2010 through January 2011. This survey was compared and analyzed about the level of satisfaction and subjective symptom by the indoor air quality that dental office's working environment. Results : The result of satisfaction degree of hospital working environment was pretty low about office air. Most people mentioned that they were sore and dull all over the back, shoulder, and neck. Also, they were drowsy and exhausted in work place. Conclusions : In conclusion, it is need to improve their quality of life and mental health by developing proper air conditioning system and using one in their work place.

• Journal of Korean Institute of Industrial Engineers
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• v.25 no.4
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• pp.459-465
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• 1999

A new-concept VDT workstation chair with adjustable keyboard/mouse support was proposed to minimize physical discomfort and the risk of cumulative trauma disorders (CTDs) at work sites in this study. First, a three-dimensional human modeling tool $(SAFEWORK^{(R)})$ was used to design the new chair satisfying the anthropometric specifications of Korean population. Second, based upon the result of 3-D graphical simulation, a mock-up chair was constructed with an adjustable keyboard/mouse support directly attached to the chair body. Third, muscle fatigue and subjective discomfort were measured to evaluate the newly developed chair. An experiment was conducted to compare the new workstation chair to the traditional computer chair without keyboard/mouse support. Six volunteer subjects participated in six one-hour word-processing sessions with two different chairs and three different postures. Statistical results indicate that the new-concept VDT chair generally improved subjective comfort level and reduced fatigue in finger flexor/extensor and low back muscle. In conclusion, this new VDT workstation chair is expected to reduce physical discomfort and prevent occupational CTD problems in the long run. Implications of the new design and suggestions for the further development are also addressed.

• International Area Studies Review
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• v.12 no.2
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• pp.203-226
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• 2008

This study was investigated the Influential Factors on Chinese Consumer's Usage Intention of Mobile Internet Service. The results of this study are as follows. First, Usefulness, Easy of Use, Subjective Norm, playfulness are positively related to Perceived value. Second, perceived risk is negatively related to Perceived value. Third, Perceived value is positively related to Intention of Mobile Internet Usage. Based on these results, managerial implications for Mobile internet service are discussed. Lastly, the limitation of this research and further research issues are suggested.