의료전달체계 정책효과 분석

정상혁,김한중,Jung, Sang-Hyuk,Kim, Han-Joong 대한예방의학회 1995 예방의학회지 Vol.28 No.1

A new medical delivery system which regulated outpatient department(OPD) use from tertiary care hospitals was adopted in 1989. Under the new system, patients using tertiary care hospital OPD without referral slip from clinics or hospitals could not get any insurance benefit for the services received from the tertiary care hospital. This study was conducted to evaluate the Patient Referral System(PRS) with respect to health care expenditures and utilization. Two data sets were used in this study. One was monthly data set(from January 1986 to December 1992) from the Annual Report of Korea Medical Insurance Corporation(KMIC). The other was monthly joint data set composed of personal data of which 10% were selected randomly with their utilization data of KMIC from January 1988 to December 1992. The data were analyzed by time-series intervention model of SAS-ETS. The results of this study were as follows: 1. There was no statistically significant changes in per capita expenditures following PRS. 2. Utilization episodes per capita was increased statistically significantly after implementation of PRS. The use of clinics and hospitals increased significantly, whereas in tertiary care hospitals the use decreased significantly immediately after implementation of PRS and increased afterwards. 3. Follow-up visits per episode were decreased statistically significantly after implementation of PRS. The decrease of follow-up visits per episode were remarkable in clinics and hospitals, whereas in tertiary care hospitals it was increased significantly after implementation of PRS. 4. There was no statistically significant changes in prescribing days per episode following PRS. Futhermore, clinics and hospitals showed a statistically significant decrease in prescribing days per episode, whereas in tertiary care hospital it showed statistically significant increase after implementation of PRS. 5. Except high income class, the use of tertiary care hospitals showed statistically significant decrease after implementation of PRS. The degree of decrease in the use of tertiary care hospitals was inversely proportional to income. These results suggest that the PRS policy was not efficient because per capita expenditures did not decrease, and was not effective because utilization episodes per capita, follow-up visits per episode. and prescribing days per episode were not predictable and failed to show proper utilization. It was somewhat positive that utilization episodes per capita were decreased temporarily in tertiary care hospitals. And PRS policy was not appropriate because utilization episodes per capita was different among income groups. In conclusion, the PRS should be revised for initial goal attainment of cost containment and proper health care utilization.

A Longitudinal Study of the Relationship Between Health Behavior Risk Factors and Dependence in Activities of Daily Living

정상혁,박경옥,Jung, Sang-Hyuk,Ostbye, Truls,Park, Kyoung-Ok The Korean Society for Preventive Medicine 2006 예방의학회지 Vol.39 No.3

Objectives: The purpose of this study was to shed further light on the effect of modifiable health behavior risk factors on dependence in activities of daily living, defined in a multidimensional fashion. Methods: The study participants were 10,278 middle aged Americans in a longitudinal health study, the Health and Retirement Survey (HRS). A multi-stage probability sampling design incorporating the effect of population sizes (Metropolitan and non-metropolitan), ethnicity (the non- Hispanic White, the Hispanic, and the Black), and age (age 51-61) was utilized. Basic Activities of Daily Living (ADL) were measured using five activities necessary for survival (impairment in dressing, eating, bathing, sleeping, and moving across indoor spaces). Explanatory variables were four health behavior risk factors included smoking, exercise, Body Mass Index (BMI), and alcohol consumption. Results: Most participants at baseline were ADL independent (1992). 97.8% of participants were independent in all ADL's at baseline and 78.2% were married. Approximately 27.5% were current smokers at baseline, and the subjects reported moderate or heavy exercise were 74.8%. All demographic characteristics and behavioral risk factors were significantly associated with the ADL status at Wave 4 except alcohol consumption. Risk behaviors such as current smoking, sedentary life style and high BMI at Wave 1 were associated with ADL status deterioration; however, moderate alcohol consumption tended to be more related to better ADL status than abstaining at Wave 4. ADL status at Wave 1 was the strongest factor and the next was exercise and smoking affecting ADL status at Wave 4. People who were in ADL dependent at Wave 1 were 15.17 times more likely to be ADL dependent at Wave 4 than people who were in ADL independent at Wave 1. Concerning smoking cigarettes, people who kept only light exercise or sedentary life style at Wave 1 were 1.70 times more likely to be died at Wave 4 than the people who did not smoke at Wave 1. Conclusions: All demographics and health behaviors at wave 1 had consistently similar OR trends for ADL status to each other except alcohol consumption. Smoking and exercise in health behaviors, and age and gender in demographics at Wave 1 were significant factors associated with ADL group separation at Wave 4.

병원 특성에 따른 건당 진료비 분석 - 급성충수염과 정상분만을 대상으로 -

정상혁,유승흠,김한중,Jung, Sang-Hyuk,Yu, Seung-Hum,Kim, Han-Joong 대한예방의학회 1990 예방의학회지 Vol.23 No.2

To identify the factors influencing the charges per case of acute appendicitis and normal spontaneous vaginal delivery (NSVD), the personal data-base files and hospital-characteristics-reporting data files of Korea Medical Insurance Corporation were analyzed. One hundred and twenty-nine institutions were selected. The results of this study were as follows 1. The differences of charges per case with respect to hospital ownership, location, and equipment levels were statistically significant. 2. The results of multiple regression analysis revealed that bed capacity was the most significant variable in both diseases. 3. Ownership was significant variable in acute appendicitis. In NSVD, ownership and hospital equipment level were statistically significant. In conclusion, bed capacity was statistically the most significant variable in the analysis of charages per case. And we thought that the results of this study would influence the policy of the hospital bed supply.

XML Mobile DBMS 구현을 위한 XML Adapter 설계

정상혁(Sang-Hyuk Jung),주경수(Kyung-Soo Joo) 한국정보과학회 2002 한국정보과학회 학술발표논문집 Vol.29 No.2Ⅰ

XML을 통한 데이터의 전송과 저장은 E-Commerce에서 표준으로 이루어 지고 있으며, 이는 점점 M-Commerce 방향으로 이전하고 있다. 이를 위하여 모바일 기기들을 위한 모바일 XML DBMS이 더욱 더 많은 DataBase 벤더들과 기업에 의하여 많은 제품이 개발되어지고 있다. 문제는 서로 다른 모바일 기기들에 대한 상호 호환성 확보와 불안한 네트워크 상태에서의 데이터 동기화에 대한 어려움으로 이를 위한 많은 솔루션들이 개발되고 있다. 이를 위하여 본 연구는 모바일 DataBase에 XML 문서를 저장할 수 있도록 XML Adapter를 미들웨어로 탑재하여 XML 문서를 전송 및 저장하고, 데이터 동기화를 위한 XML 캐슁 시스템을 설계하였다.

XML 저장시스템 기반의 XML B2B 포털 설계

정상혁(Sang-Hyuk Jung),주경수(Kyung-Soo Joo) 한국멀티미디어학회 2002 한국멀티미디어학회 학술발표논문집 Vol.2002 No.1

모듈형 PCS의 PEBB간 PWM 반송파 편차에 의한 순환 전류 저감 기법

정상혁(Sang-Hyuk Jung),박종형(Jong-Hyoung Park),최기영(Ki-Young Choi),김래영(Rae-Young Kim) 전력전자학회 2022 전력전자학술대회 논문집 Vol.2013 No.11

계통연계형 인버터의 LCL필터 최적 설계기법

정상혁(Sang-Hyuk Jung),최세완(Se-Wan Choi) 전력전자학회 2013 전력전자학회 논문지 Vol.18 No.1

The conventional LCL filter design method of the utility interactive inverter considers only harmonics attenuation of the current injected to the grid. However, in case of utility-interactive inverter with critical load the voltage quality of the critical load should also be considered for LCL filter design. Also, considering cost and volume of LCL filters. it is important to have minimum values of inductance and capacitance as far as the harmonic standards are satisfied. In this paper a LCL filter design method is proposed to satisfy not only the harmonic standards of the grid current during the grid-connected mode but the voltage quality of the critical load during grid-connected mode and stand-alone mode. With the proposed method optimized values of LCL filters could be obtained by applying weighting factor to voltage ripple across the critical load, inductor volume, amount of reactive current and system bandwidth.

북한 무기이전전략 연구

정상혁(JUNG Sang hyuk)(丁相赫) 신아시아연구소(구 신아세아질서연구회) 2016 신아세아 Vol.23 No.1

북한의 무기교역 및 이전은 북한 정권의 핵심 외화벌이 수단임에도 불구하고, 그 실체에 대하여 명확히 밝혀진 바가 없다. 그 이유는 북한의 무기거래가 매우 은밀한 루트를 통해 진행되어 왔고, 이를 제재하기 위한 국제 메커니즘이 효과적으로 작동하지 못했기 때문이었다. 그러나 북한의 무기이전 전략에 대한 효과적인 대응을 위해서는 상대의 전략에 대한 면밀한 파악이 선행되어야 할 것이다. 이에 본 연구는 북한의 무기이전을 전략의 3요소인 목표, 수단, 방법의 관점에서 분석하는데 목적을 두었다. 이에 따른 주된 연구범위는 2000년대 이후 최근의 북한 무기이전 현황으로서 중점적으로는 ‘목표 및 수단의 선택’과 ‘무기밀매 네트워크’로 대변되는 방법과의 관계에 대해 규명하고자 한다. 먼저 북한 무기이전의 목표는 경제·안보·외교적 목적이 복합적으로 작용하고 있다. 북한은 경제적 목적에 따라 전통적으로 재래식 무기거래에 치중해 왔고, 지금도 무기의 수리·개량, 그리고 군사훈련 교관 파견으로 사업영역을 확대하고 있다. 그러나 WMD/탄도미사일 등 전략무기를 개발하면서 이러한 목표가 점차 안보·외교적 목적 추구로까지 확대되고 있고, 이에 따라 무기이전수단 역시 확장되고 있는 추세이다. 이러한 가운데 향후 무기밀매 방법이 고도로 발전한다면, 무기이전의 목표와 수단은 민감한 영역까지 계속 확장될 수 있다. 그렇게 될 경우 북한의 WMD는 불량국가나 테러조직에게 확산될 수 있고, 그들의 핵능력이 계속해서 증가될 것이다. 따라서 이를 방지하기 위해서 북한 무기이전 전략에 대한 규명과 정보공유, 국제적 연대가 요망된다. The arms trade is North Korea’s core method of earning foreign exchange, but grasping its full extent and how it is carried out are difficult because that trade is shrouded in secrecy. This poses fundamental obstacles to South Korean efforts to counter this commerce. This study analyzes the DPRK’s arms trade strategy, focusing on its ends, ways and means. The article focuses on DPRK’s arms transfers after 2000 and its ‘selection of ends and means,’ the ‘arms smuggling network’, and the relationship between the two. Arms transfers are designed to advance the DPRK’s economy, security and diplomacy. The DPRK traditionally concentrated on economic interests through the conventional arms trade, but it has expanded its business to the refurbishment and support of military training. The purposes of this trade has expanded to encompass security and diplomacy as it has developed WMD and ballistic missiles. Its means of arms transfers have also expanded. In these circumstances, the DPRK’s ability to smuggle arms could mean that its arms transfer will expand without limit. In that case, the DPRK’s WMD, which is growing in capability, could proliferate to rogue states or terrorists. To prevent the risk of DPRK’s arms transfers, we must support information sharing and international cooperation.

국내정치 엘리트와 비핵화 선택에 관한 연구 - 남아공, 리비아 사례와 북한에의 적용 -

정상혁 ( Jung Sang-hyuk ) 한국군사학회 2018 군사논단 Vol.96 No.-

The purpose of this study is to analyze implication of domestic politics process and nuclear disarmament, focusing on South Africa and Libya cases. Commonly, we regard nation’s nuclear abandonment decision as a rational choice which based on calculation of profit and loss. But it is difficult to understand all nation’s choices, such as DPRK. So, in order to investigate nation’s decision exactly, it is needed to disassemble nation’s government and analyze domestic politics. There are numerous actors which have own profit and belief of each organization in the political structure system. So that, the main point of this article is to assess domestic politics of South Africa and Libya in the nuclear disarmament decision, which ultimately gives some implications for the North Korea nuclear case. Also, this study argues probability of application to North Korea nuclear disarmament.

생활체육 검도인의 수준에 따른 스포츠자신감과 운동몰입의 관계

정상혁 ( Sang Hyuk Jung ),정구인 ( Koo In Jung ) 대한무도학회 2013 대한무도학회지 Vol.15 No.2

이 연구는 생활체육 검도 참여자들의 수준에 따른 스포츠자신감과 운동몰입의 관계를 규명하기 위하여 S시와 D시에서 활동 중인 일반집단과 우수집단의 참여자 410명을 대상으로 편의표본추출법으로 자료를 표집 하였다. 자료처리는 SPSS 18.0 프로그램을 이용하여 빈도분석, 탐색적 요인분석, t검증, 일원변량분석, 사후검증, 상관분석, 회귀분석을 실시하였고 도출된 결과는 다음과 같다. In this research, the ``sport for all`` Kumdo player who can connected their experience and practice of flow when their competition. Therefore important thing was the player improve for quality of their play themselves. so the purpose of this analysis was relation of the confidence and flow for sport. In order to precede the research criteria, Sampling was taken a place in S, D city province from the participant for Kumdo more than 20 years old male & female.