Young Duk Yun

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BACKGROUND To describe the rationale, objectives, protocol, and preliminary results for a new prospective cohort study of cardiovascular disease (CVD) risk factors in South Korea. METHODS Study members were recruited from participants in routine health assessments at health promotion centres across South Korea. Established and emerging CVD risk factors(More)
OBJECTIVE The objectives of this study were to develop a coronary heart disease (CHD) risk model among the Korean Heart Study (KHS) population and compare it with the Framingham CHD risk score. DESIGN A prospective cohort study within a national insurance system. SETTING 18 health promotion centres nationwide between 1996 and 2001 in Korea. (More)
BACKGROUND Studies on factors which may predict the risk of diabetes are scarce. This prospective cohort study was conducted to determine the association between adiponectin and type 2 diabetes among Korean men and women. METHODS A total of 42,845 participants who visited one of seven health examination centers located in Seoul and Gyeonggi province,(More)
BACKGROUND AND AIMS To evaluate the performance of the American College of Cardiology/American Heart Association (ACC/AHA) 2013 Pooled Cohort Equations in the Korean Heart Study (KHS) population and to develop a Korean Risk Prediction Model (KRPM) for atherosclerotic cardiovascular disease (ASCVD) events. METHODS The KHS cohort included 200,010 Korean(More)
OBJECTIVE The relationship between impaired fasting glucose (IFG) and risk of cardiovascular disease (CVD) or ischemic heart disease (IHD) varies widely according to sex and ethnicity. We evaluated the relationship between IFG and CVD or IHD among Korean men and women. RESEARCH DESIGN AND METHODS A total of 408,022 individuals who underwent voluntary(More)
OBJECTIVE Although reproductive and hormonal factors, such as menarche and menopause, have been reported as independent risk factors for atherosclerotic cardiovascular disease (ASCVD), few studies have examined these factors in East Asian populations. In the Korean Heart Study, ASCVD risk related to duration of ovarian hormone exposure was examined in a(More)
BACKGROUND Although the increased risk of coronary artery disease (CAD) in the patients with idiopathic pulmonary fibrosis (IPF) has been reported, there was few detailed information on the risk factors for CAD in IPF. The aim of this study was to investigate the prevalence of CAD in IPF with analysis of other risk factors. METHODS The subjects were 460(More)
Elevated serum γ-glutamyltransferase (GGT) is a marker of hepatic injury and is associated with risk of chronic disease. However, the value of GGT as a biomarker for cancer risk remains unclear. Therefore, we evaluated the association of serum GGT with cancer incidence among more than 1.6 million Koreans. We included 1,662,087 Koreans (1,108,121 men and(More)
Adiponectin is found to associate with diabetes in studies apart from cohort studies. This prospective cohort study is to evaluate the predictive role of adiponectin in diabetes among participants with impaired fasting glucose (IFG). A total of 42,845 participants who visited 7 health examination centers located in Seoul and Kyunggi province, South Korea,(More)
OBJECTIVE Although diabetes increases the risk of cardiovascular disease (CVD) and mortality, the dose-response relationship between fasting glucose levels below those diagnostic of diabetes with cardiovascular events has not been well characterized. RESEARCH DESIGN AND METHODS A prospective cohort study of more than one million Koreans was conducted with(More)