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Cost-Effectiveness of Rivaroxaban Compared to Warfarin for Stroke Prevention in Atrial Fibrillation
Kim, Hyunmee,Kim, Hyeongsoo,Cho, Seong-Kyung,Kim, Jin-Bae,Joung, Boyoung,Kim, Changsoo The Korean Society of Cardiology 2019 Korean Circulation Journal Vol.49 No.3
<P><B>Background and Objectives</B></P><P>Rivaroxaban is noninferior to warfarin for preventing stroke or systemic embolism in patients with high-risk atrial fibrillation (AF) and is associated with a lower rate of intracranial hemorrhage (ICH). We assessed the cost-effectiveness of rivaroxaban compared to adjusted-dose warfarin for the prevention of stroke in patients with nonvalvular AF.</P><P><B>Methods</B></P><P>We built a Markov model using the Korean Health Insurance Review & Assessment Service database. The base-case analysis assumed a cohort of patients with prevalent AF who were aged 18 years or older without contraindications to anticoagulation.</P><P><B>Results</B></P><P>Number of patients with CHA<SUB>2</SUB>DS<SUB>2</SUB>-VASc scores 0, 1 and ≥2 were 56 (0.2%), 1,944 (6.3%) and 28,650 (93.5%), respectively. In patients with CHA<SUB>2</SUB>DS<SUB>2</SUB>-VASc scores ≥2, the incidence rate of ischemic stroke was 3.11% and 3.76% in warfarin and rivaroxaban groups, respectively. The incidence rates of ICH were 0.42% and 0.15%, and those of gastrointestinal bleeding were 0.32% and 0.15% in warfarin and rivaroxaban, respectively. Patients with AF treated with rivaroxaban lived an average of 11.8 quality-adjusted life years (QALYs) at a lifetime treatment cost of $20,886. Those receiving warfarin lived an average of 11.4 QALYs and incurred costs of $17,151. Patients with rivaroxaban gained an additional 0.4 QALYs over a lifetime with an additional cost of $3,735, resulting in an incremental cost-effectiveness ratio of $9,707 per QALY.</P><P><B>Conclusions</B></P><P>Patients who had been treated with rivaroxaban may be a cost-effective alternative to warfarin for stroke prevention in Korean patients with AF.</P>
( Hyeongsoo Kim ),( Young Soo Lee ),( Tae-hoon Kim ),( Myung-jin Cha ),( Jung Myung Lee ),( Junbeom Park ),( Jin-kyu Park ),( Ki-woon Kang ),( Jaemin Shim ),( Jae-sun Uhm ),( Hyung Wook Park ),( Eue-k 대한내과학회 2020 The Korean Journal of Internal Medicine Vol.35 No.1
Background/Aims: Efforts to reduce stroke in patients with atrial fibrillation (AF) have focused on increasing physician adherence to oral anticoagulant (OAC) guidelines; however, the high early discontinuation rate of vitamin K antagonists (VKAs) is a limitation. Although non-VKA OACs (NOACs) are more convenient to administer than warfarin, their lack of monitoring may predispose patients to nonpersistence. We compared the persistence of NOAC and VKA treatment for AF in real-world practice. Methods: In a prospective observational registry (COmparison study of Drugs for symptom control and complication prEvention of Atrial Fibrillation [CODE-AF] registry), 7,013 patients with nonvalvular AF (mean age 67.2 ± 10.9 years, women 36.4%) were consecutively enrolled between June 2016 and June 2017 from 10 tertiary hospitals in Korea. This study included 3,381 patients who started OAC 30 days before enrollment (maintenance group) and 572 patients who newly started OAC (new-starter group). The persistence rate of OAC was evaluated. Results: In the maintenance group, persistence to OAC declined during 6 months, to 88.3% for VKA and 95.5% for NOAC (p < 0.0001). However, the persistence rate was not different among NOACs. In the new-starter group, persistence to OAC declined during 6 months, to 78.9% for VKA and 92.1% for NOAC (p < 0.0001). The persistence rate was lower for rivaroxaban (83.7%) than apixaban (94.6%) and edoxaban (94.1%, p < 0.001). In the new-starter group, diabetes, valve disease, and cancer were related to nonpersistence of OAC. Conclusions: Nonpersistence was significantly lower with NOAC than VKA in both the maintenance and new-starter groups. In only the new-starter group, apixaban or edoxaban showed higher persistence rates than rivaroxaban.
김형수 ( Hyeongsoo Kim ),김상엽 ( Sang Yeob Kim ),이양구 ( Yang Koo Lee ),이종우 ( Jong Woo Lee ),박청 ( Chung Park ),류근호 ( Keun Ho Ryu ) 한국정보처리학회 2009 한국정보처리학회 학술대회논문집 Vol.16 No.1
정보화 기술의 발전과 더불어 GIS의 대중화에 따라, 다양한 형태와 주제로 공간 정보를 제공하는 수치 지도의 수요가 증가하고 있다. 기존의 수치지도 데이터는 도엽 단위로 관리하기 때문에 관리 및 갱신을 효율적으로 지원하기 어렵다. 이 논문에서는 이러한 문제를 해결하기 위해 객체의 연속적인 표현, 객체 단위의 갱신 및 이력관리가 가능한 UFID기반의 수치지도 데이터 모델을 제안하였다. 제안한 모델은 각 지형지물에 새로운 UFID를 부여하여 연속적인 지형지물 표현과 갱신으로 인한 지형지물별 이력 관리가 가능하도록 하였다. 마지막으로 제안된 모델의 효율성을 검증하기 위하여 타당성을 분석하였다.
부모세대 자본이 청년의 미래전망에 미치는 영향: 수도권/비수도권별 차이를 중심으로
김형수(HyeongSoo Kim),박성민(SeongMin Park),유재은(JaeEun You),백경민(KyungMin Baek) 서울사이버대학교 미래사회전략연구소 2023 미래사회 Vol.14 No.3
본 연구는 부모세대의 인적자본・사회자본・문화자본 등이 청년세대의 미래전망에 미치는 영향을 확인하며, 그 과정에서 사회공간이 미칠 수 있는 영향력을 수도권과 비수도권으로 나누어 살펴보았다. 이를 위해 본 연구는 2023년 3월 청년연구단체 스페셜 스페이스에서 실시한 “청년 미래전망 조사 2023”자료를 활용하였으며, 양적 연구와 질적 연구를 함께 수행하는 혼합연구를 설계하였다. 먼저 양적 연구에서 부모세대의 인적자본・사회자본・문화자본과 전체 청년세대의 미래전망 간의 관계를 살펴본 결과, 부모의 문화생활로 대표되는 문화자본 수준이 유의미한 영향력을 미치는 것으로 나타났다. 이어서 연구 대상을 수도권과 비수도권 거주 청년으로 나누어서 분석한 결과 수도권 거주 청년들의 미래전망은 부모의 사회자본과유의미한 관계를 지니며, 비수도권 거주 청년들의 미래전망은 부모의 문화자본과 유의미한 상관관계가 나타났다. 이러한 결과는 초점집단면접으로 실시된 질적 연구에서도 지지되었다. 본 연구는 청년세대 내 불평등을 해소하기 위한 정책을 수립함에 있어 청년의 거주 지역을 고려할 필요가 있음을 시사한다. 수도권의 경우 사회공간 내 구성원이 신뢰와 유대를 형성하는 방향으로, 비수도권 청년들의 경우 문화자본을 확보할 수 있는 문화 기반 시설이 확충될 필요가 있을 것이다. This study aims to examine the influence of the parental human, social, and cultural capi-tal on the youth generation’s future prospects, while also exploring the potential impact of residing in metropolitan and non-metropolitan areas. The study employs a mixed-meth-od design, incorporating both quantitative and qualitative methods, and utilizes data from the “Youth Future Outlook Survey 2023,” conducted in March 2023 by Special Space, a non- profit youth research organization. The results of the quantitative analysis show that the level of cultural capital, represented by parental engagement in cultural activities, sig-nificantly influences the future prospects of the overall youth generation. However, when analyzing metropolitan and non-metropolitan residents separately, we found that the pros-pects of the metropolitan youth were significantly related to parental social capital, while those of the non-metropolitan youth were significantly correlated with parental cultural capital. These findings were further supported by the results of the qualitative analysis conducted through focus group interviews. Therefore, this study suggests the necessity of considering the residential area when formulating policies to address the inequalities within the youth generation. In metropolitan areas, there should be efforts to foster trust and social bonds among community members, whereas for the non-metropolitan youth, it is necessary to expand the cultural infrastructure to ensure access to cultural capital.
Hyeongjoo Kim,Hyeongsoo Kim 한국지반환경공학회 2021 한국지반환경공학회논문집 Vol.22 No.12
Geotextile tube technology has been perceived as an economical solution for liquid sludge treatment, and analyzing its consolidation behavior is necessary to be able to evaluate the dewatering capabilities of large geotextile tubes filled with contaminated soil, tailings, sewage sludge, and so on. The objectives of this study are to present a method that can adequately convey the consolidation behavior of geotextile tubes filled with sewage sludge, and to investigate the effects of various geotextile tube consolidation parameters. In this study, variable coefficients of consolidation are utilized to analyze the consolidation process of geotextile tubes filled with sewage sludge. The consolidation solution was verified by comparing the measured and predicted data from a hanging bag test conducted in the literature. After verifying the proposed solution, the consolidation parameters of a geotextile tube composed of a woven polypropylene outer layer and a non-woven polypropylene layer filled sewage sludge were obtained. Using the obtained parameters, the consolidation behavior of a large-scale composite geotextiles tube was predicted.