Skip Navigation
Skip to contents

Epidemiol Health : Epidemiology and Health

OPEN ACCESS
SEARCH
Search

Author index

Page Path
HOME > Browse articles > Author index
Search
Dae Ryong Kang 4 Articles
Admission route and use of invasive procedures during hospitalization for acute myocardial infarction: analysis of 2007-2011 National Health Insurance database
Hyungseon Yeom, Dae Ryong Kang, Seong Kyung Cho, Seung Won Lee, Dong-Ho Shin, Hyeon Chang Kim
Epidemiol Health. 2015;37:e2015022.   Published online May 1, 2015
DOI: https://doi.org/10.4178/epih/e2015022
  • 14,191 View
  • 173 Download
  • 7 Citations
AbstractAbstract AbstractSummary PDF
Abstract
OBJECTIVES
The goal of this study was to investigate trends in admission to the emergency department and the use of invasive or surgical procedures during hospitalization for acute myocardial infarction (AMI) in Korea.
METHODS
The National Health Insurance (NHI) claims database between 2007 and 2011 was used. We identified all admission claims that included codes from the tenth revision of the International Classification of Diseases beginning with I21 as the primary or secondary diagnosis. Information about the admission route, admission date, discharge date, and whether coronary artery angiography, angioplasty, or bypass surgery was performed was also obtained from the NHI database.
RESULTS
Of the 513,886 relevant admission claims over the five years encompassed by this study, 295,001 discrete episodes of admission for AMI were identified by analyzing the date and length of each admission and the interval between admissions. The number of AMI admissions gradually decreased from 66,883 in 2007 to 47,656 in 2011. The number and proportion of admissions through the emergency department also decreased from 38,118 (57.0%) in 2007 to 24,001 (50.4%) in 2011. However, during the same period, admissions in which invasive or surgical procedures were performed increased from 15,342 (22.9%) to 17,505 (36.7%).
CONCLUSIONS
The reported numbers of emergency department visits and admissions for AMI decreased from 2007 to 2011. However, only a small portion of the patients underwent invasive or surgical procedures during hospitalization, although the number of admissions involving invasive or surgical procedures has increased. These findings suggest that simply counting the number of admission claims cannot provide valid information on trends in AMI occurrence.
Summary
Korean summary
급성심근경색 환자의 급성기 의료이용행태를 조사하기 위해 2007년부터 2011년까지 급성심근경색증 진단명(ICD-10 코드 I21.x)을 포함하는 입원 청구자료 513,886건을 분석하였다. 총 295,001건의 독립된 입원 에피소드를 추출하여 분석한 결과, 5년동안 전체 입원건수와 응급실 경유 입원건수는 감소한 반면, 진단 또는 치료 목적의 침습적 시술을 동반한 입원은 증가하였다. 건강보험청구자료를 이용하여 급성심근경색증 발생 규모를 파악할 때, 진단명만으로는 정확한 추계가 어려우며 관련 시술 등의 의료이용 정보를 추가하는 것이 필요할 것이다.
Key Message

Citations

Citations to this article as recorded by  
  • Effect of Sodium-Glucose Cotransporter Inhibitors on Major Adverse Cardiovascular Events and Hospitalization for Heart Failure in Patients With Type 2 Diabetes Mellitus and Atrial Fibrillation
    Chang Hee Kwon, Ye-Jee Kim, Min-Ju Kim, Myung-Jin Cha, Min Soo Cho, Gi-Byoung Nam, Kee-Joon Choi, Jun Kim
    The American Journal of Cardiology.2022; 178: 35.     CrossRef
  • Using real-world data for supporting regulatory decision making: Comparison of cardiovascular and safety outcomes of an empagliflozin randomized clinical trial versus real-world data
    Ha Young Jang, In-Wha Kim, Jung Mi Oh
    Frontiers in Pharmacology.2022;[Epub]     CrossRef
  • Epidemiology of cardiovascular disease and its risk factors in Korea
    Hyeon Chang Kim
    Global Health & Medicine.2021; 3(3): 134.     CrossRef
  • Major Adverse Cardiovascular Events in Antidepressant Users Within Patients With Ischemic Heart Diseases
    Jae Hyun Kim, Yun-Kyoung Song, Ha Young Jang, Ju-Young Shin, Hae-Young Lee, Yong Min Ahn, Jung Mi Oh, In-Wha Kim
    Journal of Clinical Psychopharmacology.2020; 40(5): 475.     CrossRef
  • Antidepressant Use and the Risk of Major Adverse Cardiovascular Events in Patients Without Known Cardiovascular Disease: A Retrospective Cohort Study
    Ha Young Jang, Jae Hyun Kim, Yun-Kyoung Song, Ju-Young Shin, Hae-Young Lee, Yong Min Ahn, Jung Mi Oh, In-Wha Kim
    Frontiers in Pharmacology.2020;[Epub]     CrossRef
  • Changing Disease Trends in the Northern Gyeonggi-do Province of South Korea from 2002 to 2013: A Big Data Study Using National Health Information Database Cohort
    Young Soo Kim, Dong-Hee Lee, Hiun Suk Chae, Kyungdo Han
    Osong Public Health and Research Perspectives.2018; 9(5): 248.     CrossRef
  • Global, regional, and national incidence, prevalence, and years lived with disability for 328 diseases and injuries for 195 countries, 1990–2016: a systematic analysis for the Global Burden of Disease Study 2016
    Theo Vos, Amanuel Alemu Abajobir, Kalkidan Hassen Abate, Cristiana Abbafati, Kaja M Abbas, Foad Abd-Allah, Rizwan Suliankatchi Abdulkader, Abdishakur M Abdulle, Teshome Abuka Abebo, Semaw Ferede Abera, Victor Aboyans, Laith J Abu-Raddad, Ilana N Ackerman,
    The Lancet.2017; 390(10100): 1211.     CrossRef
Relationship Between Earlobe Crease and Brachial-ankle Pulse Wave Velocity in Non-hypertensive, Non-diabetic Adults in Korea
Sang In Choi, Hee Cheol Kang, Choon Ok Kim, Seung Beom Lee, Won Ju Hwang, Dae Ryong Kang
Epidemiol Health. 2009;31:e2009002.   Published online October 12, 2009
DOI: https://doi.org/10.4178/epih/e2009002
  • 14,134 View
  • 90 Download
  • 12 Citations
AbstractAbstract PDF
Abstract
OBJECTIVES

Several studies have found a significant association between the presence of earlobe crease (ELC) and cardiovascular disease (CVD). Brachial-ankle Pulse Wave Velocity (baPWV) is a non-invasive and useful measure of arterial stiffness predicting cardiovascular events and mortality. However, few studies have reported the relationship between ELC and baPWV as a new measure of arterial stiffness. The purpose of this study was to determine whether ELC is related to baPWV in non-diabetic, non-hypertensive, and apparently healthy Korean adults.

METHODS

A cross-sectional study was conducted on 573 non-hypertensive, non-diabetic Korean adults aged 20-80 yr. Subjects were stratified into three groups according to gender and menopausal status. baPWV was measured by an automatic waveform analyser. The association between ELC and baPWV was assessed by multiple linear regression analysis after adjusting for conventional cardiovascular disease risk factors including age, gender, blood pressure, lipid profile, and smoking status etc.

RESULTS

The overall frequency of ELC was 19.02% and the subjects with ELC showed significantly higher mean baPWV (p<0.0001). Multiple linear regression of subjects revealed that the presence of ELC was independently associated with baPWV (male, p<0.0001; premenopausal female p=0.0162; postmenopausal female p=0.0208).

CONCLUSION

ELC had a significant correlation with baPWV, independently controlling for other classical cardiovascular risk factors in adults aged 20 yr or older. ELC is an important surrogate marker of increased arterial stiffness as measured by baPWV in Korean adults.

Summary
Korean summary
Key Message

Citations

Citations to this article as recorded by  
  • Diagonal earlobe crease and long-term survival after myocardial infarction
    Christian Thilo, Christine Meisinger, Margit Heier, Wolfgang von Scheidt, Inge Kirchberger
    BMC Cardiovascular Disorders.2021;[Epub]     CrossRef
  • Association between serum carbohydrate antigen 19-9 levels and leukoaraiosis in middle-aged and older adults: A cross-sectional study
    Da-Hye Son, Hye Sun Lee, Yong-Jae Lee
    Atherosclerosis.2020; 292: 188.     CrossRef
  • Association Between the Frank Sign and Cardiovascular Events
    Saleh Nazzal, Arnon Blum
    Southern Medical Journal.2018; 111(8): 504.     CrossRef
  • Reevaluation of the earlobe types in Koreans
    K.E. Kim, W.J. Song, D.K. Kim
    HOMO.2018; 69(6): 377.     CrossRef
  • The role of diagonal earlobe as evidence of coronary artery disease in a Salahiddin province- Iraqi population
    Omar Raheem Khalaf AL-Obaidi, Rasha Abduladheem Yaseen
    IOP Conference Series: Materials Science and Engineering.2018; 454: 012120.     CrossRef
  • Prevalence of Earlobe Creases and Their Association With History of Cardiovascular Disease in Patients Undergoing Hemodialysis: A Cross-Sectional Study
    Minako Wakasugi, Junichiro James Kazama, Kazuko Kawamura, Suguru Yamamoto, Masaaki Nagai, Kentaro Omori, Saori Yokota, Hirokazu Fujikawa, Ikuo Aoike, Tsukasa Omori, Ichiei Narita
    Therapeutic Apheresis and Dialysis.2017; 21(5): 478.     CrossRef
  • Diagonal Earlobe Crease is a Visible Sign for Cerebral Small Vessel Disease and Amyloid-β
    Jin San Lee, Seongbeom Park, Hee Jin Kim, Yeshin Kim, Hyemin Jang, Ko Woon Kim, Hak Young Rhee, Sung Sang Yoon, Kyoung Jin Hwang, Key-Chung Park, Seung Hwan Moon, Sung Tae Kim, Samuel N. Lockhart, Duk L. Na, Sang Won Seo
    Scientific Reports.2017;[Epub]     CrossRef
  • Visible aging signs as risk markers for ischemic heart disease: Epidemiology, pathogenesis and clinical implications
    Mette Christoffersen, Anne Tybjærg-Hansen
    Ageing Research Reviews.2016; 25: 24.     CrossRef
  • Diagonal earlobe crease and coronary artery disease in a Chinese population
    Xing-li Wu, Ding-you Yang, Yu-sheng Zhao, Wen-hui Chai, Ming-lei Jin
    BMC Cardiovascular Disorders.2014;[Epub]     CrossRef
  • Earlobe Crease May Provide Predictive Information on Asymptomatic Peripheral Arterial Disease in Patients Clinically Free of Atherosclerotic Vascular Disease
    Levent Korkmaz, Mustafa Tarık Ağaç, Zeydin Acar, Hakan Erkan, Ismail Gurbak, Ibrahim Halil Kurt, Huseyin Bektas, Erdinc Pelit, Ayca Ata Korkmaz, Şükrü Çelik
    Angiology.2014; 65(4): 303.     CrossRef
  • Association Between Earlobe Crease and the Metabolic Syndrome in a Cross-sectional Study
    Eun Hee Kang, Hee Cheol Kang
    Epidemiology and Health.2012; 34: e2012004.     CrossRef
  • Diagonal Ear Lobe Crease and Coronary Artery Disease
    Damir Fabijanić, Viktor Čulić
    The American Journal of Cardiology.2012; 110(9): 1385.     CrossRef
Validity of Stature-predicted Equations using Knee Height for Elderly and Mobility Impaired Persons in Koreans
In Cheol Hwang, Kyoung Kon Kim, Hee Cheol Kang, Dae Ryong Kang
Epidemiol Health. 2009;31:e2009004.   Published online October 12, 2009
DOI: https://doi.org/10.4178/epih/e2009004
  • 15,364 View
  • 150 Download
  • 9 Citations
AbstractAbstract PDF
Abstract
OBJECTIVES

This study aimed to establish a stature-predicted equation using knee height, and perform a clinical validation on a Korean population.

METHODS

Using nationwide data obtained from 'Size Korea 2004', a stature-predicted equation was drawn and cross validation was performed using knee height in 5,063 subjects (2,532 males, 1,785 premenopausal females, and 746 postmenopausal females) who were aged between 20 and 69 yr. The formula was then applied to an elderly group (7 males and 26 females) and a mobility-impaired group (25 males and 14 females) in a real clinical setting. A stature-predicted equation was estimated using knee height and age based on multiple linear regression analysis. Cross validation was performed using paired t-test, and validation using clinical data was performed using Wilcoxon signed rank test.

RESULTS

In three groups (males, premenopausal females, and postmenopausal females), a cross validation was performed for a stature-predicted equation which was drawn using knee height and age. There were no significant differences between recorded height and estimated height in the elderly group (mean difference±interquartile range (IQR): male 0.65±4.65 cm, female -0.10±3.65 cm) and the mobility-impaired group (mean difference±IQR: male -0.23±5.45 cm, female 1.64±5.36 cm).

CONCLUSION

If several limitations could be overcome, the Korean-specific equations using knee height drawn from this study could be applied to actual clinical settings with Korean elderly or mobility-impaired people.

Summary
Korean summary
Key Message

Citations

Citations to this article as recorded by  
  • Anthropometric Equations to Determine Maximum Height in Adults ≥ 60 Years: A Systematic Review
    Arnulfo Ramos-Jiménez, Rosa P. Hernández-Torres, Isaac A. Chávez-Guevara, José A. Alvarez-Sanchez, Marco A. García-Villalvazo, Miguel Murguía-Romero
    International Journal of Environmental Research and Public Health.2022; 19(9): 5072.     CrossRef
  • Height Prediction Using the Knee Height Measurement Among Indonesian Children
    Fernando Rumapea, Eddy Fadlyana, Meita Dhamayanti, Rodman Tarigan, Rahmayani Rahmayani, Kusnandi Rusmil
    Food and Nutrition Bulletin.2021; 42(2): 247.     CrossRef
  • A Knee Height Equation for Estimating Height of Vietnamese Adults
    Tu Huu Nguyen, Yen Ngoc Ma, Linh Thuy Nguyen
    Nutrition Today.2021; 56(6): 306.     CrossRef
  • Bayes factor: A useful tool to quantitatively evaluate and compare performance of multiple stature estimation equations
    Yangseung Jeong, Ashlin P. Harris, Omar Ali, Yochun Jung
    Forensic Science International.2020; 312: 110299.     CrossRef
  • Estimating the height of elderly nursing home residents: Which equation to use?
    Marcos Felipe Silva de Lima, Larissa Praça de Oliveira, Natália Louise de Araújo Cabral, Laura Camila Pereira Liberalino, Ursula Viana Bagni, Kenio Costa de Lima, Clélia de Oliveira Lyra, Gary Liguori
    PLOS ONE.2018; 13(10): e0205642.     CrossRef
  • Accuracy of height estimation and tidal volume setting using anthropometric formulas in an ICU Caucasian population
    Erwan L’her, Jérôme Martin-Babau, François Lellouche
    Annals of Intensive Care.2016;[Epub]     CrossRef
  • Enteral nutritional intake in adult korean intensivecare patients
    Hyunjung Kim, Nancy A. Stotts, Erika S. Froelicher, Marguerite M. Engler, Carol Porter
    American Journal of Critical Care.2013; 22(2): 126.     CrossRef
  • Adequacy of early enteral nutrition in adult patients in the intensive care unit
    Hyunjung Kim, Nancy A Stotts, Erika S Froelicher, Marguerite M Engler, Carol Porter, Heejeong Kwak
    Journal of Clinical Nursing.2012; 21(19pt20): 2860.     CrossRef
  • The estimation of body height from ulna length in healthy adults from different ethnic groups
    A. M. Madden, T. Tsikoura, D. J. Stott
    Journal of Human Nutrition and Dietetics.2012; 25(2): 121.     CrossRef
A study on Statistical Method for Controlling the Effect of Intermediate Events: Application to the Control of the Healthy Worker Effect.
Chung Mo Nam, Jinheum Kim, Dae Ryong Kang, Yeon Soon Ahn, Hoo Yeon Lee, Dae Hee Lee
Korean J Epidemiol. 2002;24(1):7-16.
  • 4,639 View
  • 11 Download
AbstractAbstract PDF
Abstract
PURPOSE
The healthy worker effect is an important issue in occupational epidemiology. This study was conducted to propose a new method to test the relation between exposure and mortality in the presence of the healthy worker effect.
METHODS
In this study, the healthy worker hire effect was assumed to operate as a confounding variable of health status at the beginning of employment and healthy worker survival effect as a confounding and intermediate variable of employment status. In addition, the proposed method reflects the length bias sampling caused by changing of an employment status. Simulation studies were also carried out to compare the proposed method with Cox's time dependent covariates models .
RESULTS
The theoretical development of the healthy worker survival effect is based on the result that an observation with change of an employment status requires that the survival time without intermediate event exceeds the waiting time for the intermediate event. According to our simulation studies, both the proposed method and Cox's time dependent covariates model which includes the change of employment status as time dependent covariates seem to be satisfactory at 5% significance level. However, Cox's time dependent covariates models without or with the change of employment status as time fixed covariate are unsatisfactory. The proposed test is superior in power to tests based on Cox's model.
CONCLUSIONS
The healthy worker effect may not be controlled by classical Cox's proportional hazards models. The proposed method performed well in the presence of healthy worker effect in terms of level and power
Summary
Korean summary
Key Message

Epidemiol Health : Epidemiology and Health