• Journal of the Korean Data and Information Science Society
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• v.21 no.3
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• pp.589-595
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• 2010

In discriminant analysis, we consider an intraclass correlation pattern by principal component analysis. We assume that the two populations are equally likely and the costs of misclassification are equal. In this situation, we consider two procedures, i.e., the test and proportion procedures, for selecting the principal components in classifica-tion. We compare the regular classification method and the proposed two procedures. We consider two methods for estimating error rate, i.e., the leave-one-out method and the bootstrap method.

• YAKHAK HOEJI
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• v.55 no.6
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• pp.500-509
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• 2011

This study was to identify factors influencing drug compliance based on the subjects' interview regarding community pharmacy utilization for 2 weeks, in 2005 KNHANES. Good compliance was regarded as important factors in improving the effectiveness and minimizing adverse drug reaction, resulting in reducing the medical costs. 83% of total 11,208 pharmacy visits in 7,066 subjects showed good compliance. Good satisfaction for pharmacist's medication counseling (OR=2.23, 95% CI 1.92-2.58), higher out-of-pocket money (OR=1.32, 95% CI 1.14-1.54), and users of prescription drugs than non-prescription (OR=2.21, 95% CI 1.91-2.57) drugs were significant factors for better compliance. Disease of nervous system and mental and behavioral disorders showed lower drug compliance.

• Journal of the Korean Data and Information Science Society
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• v.21 no.2
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• pp.355-361
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• 2010

This paper addresses a mathematical approach to decision making in a real-world material distribution situation. The problem is characterized by a low-volume and highly-varied mix of products, therefore there is a lot of material movement between the facilities. This study focuses especially on the transportation scheduler with a tool that can be used to quantitatively analyze the volume of material moved, the type of truck to be used, production schedules, and due dates. In this research, we have developed a mixed integer programming problem using the minimum cost, multiperiod, multi-commodity network flow approach that minimizes the overall material movement costs. The results suggest that the optimization approach provides a set of feasible solution routes with the objective of reducing the overall fleet cost.

• Journal of the Korean Data and Information Science Society
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• v.24 no.1
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• pp.189-200
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• 2013

In this paper, it will be assumed that there are two distinct populations which are multivariate normal with equal covariance matrix. We also assume that the two populations are equally likely and the costs of misclassification are equal. The classification rule depends on the situation whether the training samples include missing values or not. We consider the conditional bootstrap confidence intervals for classification error rate when a block of observation is missing.

• YAKHAK HOEJI
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• v.54 no.2
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• pp.126-133
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• 2010

This study was conducted to analyze cost-utility of bosentan versus iloprost indicated for pulmonary arterial hypertension (PAH) in a Korean healthcare setting from a payer's perspective. We constructed a Markov model to estimate total costs and outcomes for 1-year time horizon in a hypothetical cohort of 50-year-old patients with PAH. Base analysis showed that bosentan resulted in KW 5.5 billions saving and 18 quality-adjusted life year (QALY) gains per 100 patients compared to iloprost. Bosentan as a dominant strategy was found to be robust through various sensitivity analyses.

• Korea Journal of Hospital Management
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• v.4 no.2
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• pp.305-329
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• 1999

Financial ratio indicators of the 46 sample hospitals provided by the Korea Health Industry Development Institute, together with the survey data responded by the 57 sample hospitals, were analysed to identify the characteristics of the red-figured hospitals' financial structure, financial operational efficiency and management decision-making behavior, The financial characteristics identified through the analysis include high dependency to liabilities, high salary expenses and overhead costs, low profitability of the unduly large amount of fixed assets, and low managerial efficieny of inventory. The hospitals, in face of the IMF economic impasse, took the necessary decision-making and counter measures to cut down salary expenses, to increase the number of patient and medical revenue, and to reduce investment to fixed assets. Based on these findings this study suggested that the hospitals should take more active cost containment measures, financial structural reorganization, and developoment of the strategies that can contribute to increase of the number of patient and medical revenue and that do not. require much capital funds.

• Korean Journal of Clinical Pharmacy
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• v.20 no.1
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• pp.30-38
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• 2010

This study was conducted to analyze cost-effectiveness of neoadjuvant chemotherapy for locally advanced head and neck cancer in Korean healthcare setting. We constructed a decision analytical model to estimate total costs and outcomes of paclitaxel+cisplatin (PC) or docetaxel+cisplatin+5-FU (DCF) for 2 years time horizon in 100 patient cohort with locally advanced head and neck cancer. Base analysis showed that cost savings of PC regimen were 379 million Korean Won and 231 million Korean Won in societal and payer's perspectives, respectively, compared to DCF regimen, and life saved was 0.18. PC regimen as a dominant strategy was found to be robust through sensitivity analyses.

• Journal of muscle and joint health
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• v.25 no.3
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• pp.240-249
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• 2018

Purpose: This study was to identify the attributes, antecedents, their consequences, and empirical indicators of rehabilitation motivation in rheumatoid arthritis patients. Methods: Walker and Avant's method was used to analyze the concept. Articles published after 1990 were searched in Medline, CINAHL, NSDL, and RISS databases using "rehabilitation", "motivation" and their combination as keywords. Results: The attributes of rehabilitation motivation are: 1) certitude and trust toward rehabilitation treatment; 2) confidence in the rehabilitation process; 3) efforts and commitments to achieve health goals; 4) psychological needs to act toward health recovery. Its antecedents include: 1) rights of self-determination; 2) goal setting and goal-oriented attitude; 3) personal needs; 4) getting rewards; 5) social and family support; 6) professional behavior of healthcare providers; and 7) least risks or costs for actions taken. Conclusion: The study results could be used as a conceptual framework for developing tools to measure the motivation of rheumatoid arthritis patients.

• International Journal of Advanced Culture Technology
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• v.6 no.4
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• pp.226-232
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• 2018

The rapid pace of growth in internet usage and rich mobile applications and with the advantage of incredible usage of internet enabled mobile devices the Green Mobile Crowd Computing will be the suitable area to research combining with cloud services architecture. Our proposed Framework will deploy the eHealth among various health care sectors and pave a way to create a Green Mobile Application to provide a better and secured way to access the Products/ Information/ Knowledge, eHealth services, experts / doctors globally. This green mobile crowd computing and cloud architecture for healthcare information systems are expected to lower costs, improve efficiency and reduce error by also providing better consumer care and service with great transparency to the patient universally in the field of medical health information technology. Here we introduced novel architecture to use of cloud services with crowd sourcing.

• Health Policy and Management
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• v.33 no.2
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• pp.115-117
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• 2023

The issue of increasing the number of physicians is emerging. Because the physician workforce is a critical component of the health care system, and substantial costs are involved in training personnel, a cautious approach is required. The demand to increase the number of physicians is based on the contention that there are difficulties in accessing essential health services and the need to prepare for future demands such as fostering physician-scientists. However, simply increasing the number of physicians is not an appropriate approach to address these demands, especially considering that the effects of such an increase will appear 10 years later. Moreover, it is concerned that the current argument for increasing the physician workforce is intertwined with political interests. When considering the impact on the health care system, decisions regarding the expansion of the physician workforce should be based on evidence. Additionally, rather than temporarily responding to social issues, it is expected that a governance system will be established to continuously discuss and decide on fostering medical personnel.