• Health Policy and Management
• /
• v.18 no.2
• /
• pp.86-106
• /
• 2008

This research analyzed. knowledge structure and its effect factor by analysis of co-author and keyword network in Korea's health policy and administration sector. The data was extracted from 339 articles listed in the Korean Journal of Health Policy and Administration, and was transformed into a co-author and keyword matrix. In this matrix the existence of a link was defined by impact factors which were calculated by the weight value of what the role was and the rate of how many authors contributed. We demonstrated that the research achievement was dependent on the author's status and network index. Analysis methods were neighborhood degree, correspondence analysis, multiple regression and the difference of weight distribution by research fields. Co-author networks were developed as closeness centrality as well as degree centrality by a few high productivity researchers. In particular, power law distribution was discovered in impact factor and research productivity. The effect of the author's role was significant in both the impact factor calculated by the participatory rate and the number of listed articles. Especially, this journal shared its major researchers who had a licensed physician with the Journal of Preventive Medicine and Public Health. Therefore, social scientists were likely to be small co-author network differently from natural scientists. It was so called 'two cultures' phenomenon. This study showed how can we verified academic research structure existed in the unit of journal like as citation networks. The co-author networks in the field of health policy and administration had more differentiated and clustered than preventive medicine and epidemiology fields.

• Journal of Physiology & Pathology in Korean Medicine
• /
• v.37 no.1
• /
• pp.9-13
• /
• 2023

Due to COVID-19, the non-face-to-face era has arrived, and telemedicine has become a demand of the times in the medical community. Accordingly, this study aims to present a way to supplement Korea's telemedicine policy by comparing and analyzing domestic telemedicine policy and China's telemedicine policy, and analyzing the success factors of Chinese telemedicine. Domestic and foreign literature was explored to compare and analyze telemedicine policy cases of Korean, Chinese. Domestic and foreign national legal databases and web DBs were used, and literature were restricted between 2009 and 2022. Prior to COVID-19, the scope of telemedicine was very narrow in Korea, and only some pilot projects were operated. After COVID-19, the scope of telemedicine temporarily expanded, but no specific policies or systems were prepared. On the other hand, in the case of China, related policy institutional discussions on telemedicine have been actively conducted since the past, and accordingly, specific scope of application and related management norms and systems have been prepared. For the development of telemedicine in Korea, it is necessary to supplement the definition of telemedicine, ensure the accuracy and safety of non-face-to-face care through telemedicine, and solve the concentration phenomenon of large hospitals through limited conditions for hospital-level medical institutions.

• Health Policy and Management
• /
• v.18 no.4
• /
• pp.66-84
• /
• 2008

Objectives: This study aimed to. offer some fundamental evidences for the stroke management policy by investigating the trends of medical care utilization and regionalization in stroke inpatients. Methods: We used the National Health Insurance claims and registry data for stroke inpatients from 1998 to 2005. Among all stroke inpatient claims data, self-employed insured and their dependents were only included in this study. The classification of stroke was based on ICD-10(I60-I69) and its subtype was divided by hemorrhage(I60-I62) and infarction(I63-I64) type. To evaluate regionalization of medical care utilization, relevance index was calculated by regions. The regions were classified 8 large catchment areas and 163 self authorized areas. Results: The overall medical care utilization rate of stroke inpatient has been increased, especially infarction subtype. Among medical care institutions, the utilization of hospital has been the most rapidly increased. Although considered annual rate of interest, total medical cost of stroke inpatients has been increased, Totally, more than 84% of stroke inpatient were admitted to medical care institutions in their own large catchment area during 1998-2005. The relevance indices in their own large catchment area (self sufficiency rates) were more than 70% in most areas regardless of stroke subtype except Chungbuk catchment area. Self sufficiency rates of stroke inpatients among 163 self authorized areas in 1998 and 2005 were 84.2% and 83.1% in metropolitan, 46.7% and 45.5% in urban, and 19.5% and 22.6% in rural areas, respectively. Conclusion: Stroke management policy for improvement of distribution at the district level, especially in rural areas, may be helpful for reducing regional inequality in stroke.

• International Journal of Quality Innovation
• /
• v.7 no.3
• /
• pp.15-23
• /
• 2006

A spare ordering policy is considered for planned maintenance. Introducing the ordering, uptime, downtime, inventory costs and salvage value, we derive the expected cost effectiveness. The problem is to determine jointly the ordering time for a spare and the preventive replacement time for the operating unit which maximize the expected cost effectiveness. Some properties regarding the optimal policy are derived, and a numerical example is included to explain the proposed model.

• 대한예방의학회:학술대회논문집
• /
• 1995.10a
• /
• pp.235-236
• /
• 1995

• 대한예방의학회:학술대회논문집
• /
• 1995.10a
• /
• pp.243-244
• /
• 1995

• Proceedings of the Korean Statistical Society Conference
• /
• 2002.11a
• /
• pp.147-151
• /
• 2002

Burn-in is a widely used method to eliminate initial failures. Preventive maintenance policy such as block replacement with minimal repair at failure is often used in field operation. In this paper burn-in and maintenance policy are taken into consideration at the same time. The cost of a minimal repair is assumed to be a non-decreasing function of its age. The problems of determining optimal burn-in times and optimal maintenance policy are considered.

• 대한예방의학회:학술대회논문집
• /
• 2002.10a
• /
• pp.495-496
• /
• 2002

• 대한예방의학회:학술대회논문집
• /
• 2002.10a
• /
• pp.282-283
• /
• 2002

• Journal of Korean Society for Quality Management
• /
• v.22 no.3
• /
• pp.54-65
• /
• 1994

A hybrid warranty policy for a repairable item is considered. Assuming that minimal repairs ar e performed for failures during warranty period, present worth of warranty cost is derived from a supplier's viewpoint. An optimal preventive periodic replacement policy for the case is also derived from a user's viewpoint Numerical examples are presented in order to explain the results.