• 한국치위생학회지
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• 제18권2호
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• pp.227-237
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• 2018

Objectives: This study aims to recognize the importance of dental hygiene process diagnosis of dental hygiene process which can comprehensively grasp the patient's problem and to use it as a basis for establishing the patient's preventive treatment plan. Methods: This study did survey to 443 patients who received treatment based on the oral health care program from a dental clinic in Busan from January 2015 to January 2017. Data analysis was performed using IBM SPSS Statistics (Version 21.0), and statistical significance level was set at ${\alpha}=0.05$. Binary logistic regression analysis was performed to the dental hygiene problems affecting the dental hygiene plan. Results: There were significant differences in dental hygiene problems between male and female respondents on various dental problems such as dental plaque deposition, attrition, stain, dental fear, possibility of jaw joint disorder, food pressing, possibility of malocclusion. There were also significant differences in dental hygiene plans between male and female respondents in air-Jet, non-smoking education, and sealant. The most common dental hygiene plan was scaling, The problem of stain showed that the scaling plan was 0.20 times less. The explanatory power of the model was 43.5%, and the Hosmer and Lemeshow tests were 0.345. Conclusions: Therefore, if we continue to study the factors affecting the dental hygiene problems and the plan, we can reduce the burden of the dental hygienists applying the dental hygiene process in the dental clinic. And, it is expected that the oral health care program using the dental hygiene process will spread to the dental clinic as an excellent oral preventive program.

• Journal of Preventive Medicine and Public Health
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• 제16권1호
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• pp.13-18
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• 1983

성적접촉에 의한 B형간염의 전파가능성을 조사하고 그 정도를 파악할 목적으로 1982년 3월 1일부터 7월 31까지 대구시내 윤락여성 435명을 대상으로 B형간염감염율과 그들의 연령, 종사기간, 교육수준, 수혈 및 수술력을 조사하였다. B형간염 virus 보유율이 높은 한국인을 상대로 하는 중구보건소에 등록된 윤락여성의 경우 B형간염 감염율이 41.7%였고 B형간염 virus 보유율이 낮은 주한미군을 상대로 하는 동 남구보건소에 등록된 윤락여성에서는 30.2%의 감염율을 나타내어 중구보건소에 등록된 윤락여성이 통계적으로 유의하게 높은 잠염율을 보였다(p<0.025). 동 남구보건소에 등록된 윤락여성에서는 종사기간 별로 별다른 차이를 보이지 않았으나 중구보건소에 등록된 윤락여성에서는 2년 이상의 경우 B형간염 감염율이 49.3%였고 2년 미만의 경우 38.9%로 차이는 있으나 통계적 유의수준에는 미치지 못하였다. 교육수준, 수술력 및 수혈력과 B형간염, 감염율 사이에는 일정한 상관관계를 보이지 않았다. 이상의 결과로 미루어 보아 성적접촉으로 B형간염이 어느정도 전파되기는 하나 주전파 경로는 아닌 것으로 생각된다.

• 대한예방한의학회지
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• 제23권2호
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• pp.101-115
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• 2019

Objective : This study is aimed to application possibility and status of pattern identification in middle and high school students. Method : This study was cross-sectional study. We recruited 277 students through school doctor program of Seongnam city in 2017. Male students are 66 in middle school, 32 in high school. Female students are 117 in middle school, 62 in high school. For pattern identification, we used the tool of Qui Xui Shui pattern identification in students. Students fill questionnaires in inquiry of pattern identification and Korean medicine doctor diagnosis inspection and palpation of students. Results : Among 277 students, no pattern identification were 114(41.2%). It appeared in the order of phlegm, blood deficinecy, qi deficiency, qi stagnation and qi reversal. Qi deficiency, qi stagnation, qi reversal, blood deficiency and phlegm pattern are statistically significant by gender except blood stagnation. of 277 students, 105 (37.9%) had one more pattern identification. Conclusions : This study showed possibility of Qui Xui Shui pattern for student health management. In the future, large scale follow up study will be needed to clarify the relationship of pattern identification and student's health.

• Journal of Preventive Medicine and Public Health
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• 제24권4호
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• pp.465-472
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• 1991

약물남용자들의 C형간염 감염 상태를 파악하고자 methamphetamine 남용에 의한 중독 증상으로 입원하고 있는 141명을 대상으로 하여 약물남용의 빈도와 기간, 약물 투여경로 등에 관한 조사와 함께 혈청내 C형간염 항체, B형간염 표식자 및 간기능 검사를 실시하고 이들 사이의 관련성을 검토하여 다음과 같은 결과를 얻었다. 1. C형간염 항체 양성률은 60.3%(85/141)이었으며 성별로는 차이가 없었으나 연령군별로는 40세 이상군에서 증가되는 경향이 있었다. 2. C형간염 항체의 양성률은 약물남용의 빈도가 높았던 군과 약물남용의 기간이 길었던 군에서 유의하게 높았으나 B형간염 표면항원의 양성률은 약물남용의 빈도 및 기간과 유의한 차이가 없었다. 이상의 결과로 보아 methamphetamine 남용자에서 C형간염 유병률은 매우 높을 것이며 감염 전파경로에 있어서 C형간염은 반복적인 경주적 폭로가 중요 전파 요인일 것으로 추측된다.

• Journal of Preventive Medicine and Public Health
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• 제43권6호
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• pp.479-485
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• 2010

Objectives: The Korean Genome and Epidemiology Study (KoGES), a multicenter-based multi-cohort study, has collected information on body composition using two different bioelectrical impedence analysis (BIA) machines. The aim of the study was to evaluate the possibility of whether the test values measured from different BIA machines can be integrated through statistical adjustment algorithm under excellent inter-rater reliability. Methods: We selected two centers to measure inter-rater reliability of the two BIA machines. We set up the two machines side by side and measured subjects' body compositions between October and December 2007. Duplicated test values of 848 subjects were collected. Pearson and intra-class correlation coefficients for inter-rater reliability were estimated using results from the two machines. To detect the feasibility for data integration, we constructed statistical compensation models using linear regression models with residual analysis and R-square values. Results: All correlation coefficients indicated excellent reliability except mineral mass. However, models using only duplicated body composition values for data integration were not feasible due to relatively low $R^2$ values of 0.8 for mineral mass and target weight. To integrate body composition data, models adjusted for four empirical variables that were age, sex, weight and height were most ideal (all $R^2$ > 0.9). Conclusions: The test values measured with the two BIA machines in the KoGES have excellent reliability for the nine body composition values. Based on reliability, values can be integrated through algorithmic statistical adjustment using regression equations that includes age, sex, weight, and height.

• 산업공학
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• 제16권1호
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• pp.27-33
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• 2003

The maintenance cost in K Steelworks has been continuously increased in proportion to the production cost. However, there seems to be a possibility of reducing cost through the optimization of maintenance actions. The failure types of the equipment in steelworks ate various with different failure cost. Thus the failure rate and cost of each type of failures should be considered simultaneously when the optimum maintenance period is to be determined. It is considered that the equipment undergoes periodic replacement and a specified number of incomplete preventive maintenance actions are performed during a replacement period. Assuming that the time to failure follows a Weibull distribution, the parameters of the failure rate are estimated using the maximum likelihood estimation. The optimal replacement period is determined to minimize the average cost per unit time. As the result of analysis it is suggested that the existing maintenance period for a hot-rolling equipment can be extended significantly.

• Journal of Preventive Medicine and Public Health
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• 제40권2호
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• pp.114-121
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• 2007

Power and sample size estimation is one of the crucially important steps in planning a genetic association study to achieve the ultimate goal, identifying candidate genes for disease susceptibility, by designing the study in such a way as to maximize the success possibility and minimize the cost. Here we review the optimal two-stage genotyping designs for genomewide association studies recently investigated by Wang et al(2006). We review two mathematical frameworks most commonly used to compute power in genetic association studies prior to the main study: Monte-Carlo and non-central chi-square estimates. Statistical powers are computed by these two approaches for case-control genotypic tests under one-stage direct association study design. Then we discuss how the linkage-disequilibrium strength affects power and sample size, and how to use empirically-derived distributions of important parameters for power calculations. We provide useful information on publicly available softwares developed to compute power and sample size for various study designs.

• Journal of Preventive Medicine and Public Health
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• 제56권1호
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• pp.88-94
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• 2023

Objectives: This study examined how deprivation differed by region and the effect those differences had on suicidal ideation among the local population. Methods: Data collected over 10 years (2012-2021) in the Korea Welfare Panel Study were organized into 3 categories: metropolitan, city, and rural. A panel analysis was conducted on the impact of deprivation indices, socio-demographic characteristics, and life satisfaction on suicidal ideation in each category. Results: Income, divorce status, family relationship satisfaction, and medical deprivation had a significant impact on suicidal ideation in metropolitan areas, whereas these variables did not have significant effects in rural areas. In other words, income, family, and medical support were more impactful in city areas. Conclusions: Although the deprivation index was higher in rural areas than in city areas due to an aging population and reduced income levels, the mental health of rural residents was found to be generally better than that of city residents. The possibility that this is related to the strength of relationships within the respective communities should be considered in light of recent discussions on relational welfare.

• 대한예방한의학회지
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• 제25권3호
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• pp.1-14
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• 2021

Objectives : This study aimed to investigate the perception level of Telemedicine among Korean medical doctors. Methods : The on-line survey was administered for Korean Medicine doctors. The survey consisted of 46 questions, addressing issues on concepts and adoption model of Telemedicine. Data were collected from 528 Korean medical doctors, and were analyzed using frequency analysis, t-test, ANOVA, and Kruskalwallis test. Results : The results showed that more than half of respondents had positive attitude towards implementation of Telemedicine in Korean Medicine and conventional medicine areas. Respondents were most positive about the aspect that Telemedicine could reduce 'hospital use by people with disabilities', while they were most concerned about the possibility that patients could be concentrated in large-scale hospitals. As prerequisites for the introduction of Telemedicine, accurate information delivery during remote communication between doctors and patients, clarification of responsibility for Telemedicine at the policy level, and development of equipment for accurate information delivery at the technical level received high responses. Conclusions : Korean Medicine doctors were positive about the implementation of Telemedicine, and they preferred to remote monitoring between doctors and patients. The development of medical equipment for accurate patient information delivery and the establishment of an institutional basis for clarifying responsibilities in case of medical accidents are required.

• 한국병원경영학회지
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• 제18권1호
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• pp.42-58
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• 2013

The purpose of this study was to investigate the awareness of long-term care hospitals on pay for performance(P4P) program in Korea. We conducted a cross-sectional, self-administered, the internet based survey from September to October in 2010. The questionnaire was consisted of the levels of awareness and agreement about the program, their preferred design and its possible effects and unintended consequences etc. Among 837 eligible long-term care hospitals in Korea, 114 hospitals(13.6%) were participated in the survey. About one-thirds of long-term care hospitals were not aware of P4P, namely it is important to heighten an awareness of P4P. There were pros and cons on introduction of P4P in Korea. The two major reasons of objections of P4P were the concerns of unintended consequences and the possibility of strengthening government control by implementing P4P. In conclusion, to successfully implement P4P to long-term care hospitals, the Health Insurance Review & Assessment Service(HIRA) in Korea should obtain the long-term care hospitals'opinion as to implementation of P4P.