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Lee SH, Noh JW, Kim KB, Chae JH. The impact of coping strategies and positive resources on post-traumatic stress symptoms among bereaved families of the Sewol ferry disaster. Front Psychiatry 2024; 15:1367976. [PMID: 38628257 PMCID: PMC11018955 DOI: 10.3389/fpsyt.2024.1367976] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Accepted: 03/18/2024] [Indexed: 04/19/2024] Open
Abstract
Introduction This study investigated the long-term prevalence of, and factors associated with, post-traumatic stress disorder (PTSD) among the bereaved families of the Sewol ferry disaster, in which 250 students lost their lives during a school excursion. Methods Eight years after the disaster, 181 family members were surveyed, and the prevalence of clinical PTSD symptoms was estimated. The Positive Resources Test (POREST), the Duke-UNC Functional Social Support Questionnaire, and the Brief COPE were evaluated using self-report measures. The multivariable binomial logistic regression was used to identify protective and risk factors for PTSD. Results PTSD symptoms were present in 49.7% of the family members 8 years after the incident. A one-point increase in the score on the optimism subscale of the POREST was associated with a 20.1% decreased likelihood of having clinical PTSD symptoms (OR = 0.799; p = 0.027; 95% CI = 0.655-0.975). Conversely, a one-point increase in the score on the avoidant subscale of Brief COPE was associated with a 13.2% increased likelihood of having clinical PTSD symptoms (OR = 1.132; p = 0.041; 95% CI = 1.005-1.274). Discussion Our results provide evidence of the need for long-term mental health monitoring of bereaved families of disaster victims, along with valuable insights for the development of mental health intervention programs.
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Affiliation(s)
- So Hee Lee
- Department of Psychiatry, National Medical Center, Seoul, Republic of Korea
| | - Jin-Won Noh
- Division of Health Administration, College of Software and Digital Healthcare Convergence, Yonsei University, Wonju, Republic of Korea
| | - Kyoung-Beom Kim
- Department of International Healthcare Administration, College of Bio and Medical Sciences, Catholic University of Daegu, Daegu, Republic of Korea
| | - Jeong-Ho Chae
- Department of Psychiatry, Seoul St. Mary’s Hospital, The Catholic University of Korea, College of Medicine, Seoul, Republic of Korea
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Heo MH, Song EM, Jeon HW, Kim KB, Noh JW. Factors Associated With People's Accessibility to Mental Healthcare Services in Ukraine: Focusing on Household Head Vulnerability. Int J Public Health 2023; 68:1605890. [PMID: 38045994 PMCID: PMC10689256 DOI: 10.3389/ijph.2023.1605890] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Accepted: 10/31/2023] [Indexed: 12/05/2023] Open
Abstract
Objectives: This study examines the factors associated with access to mental healthcare services among people living in the government-controlled areas (GCAs) of Donetsk and Luhansk oblasts in Ukraine. Methods: The 2020 Ukraine Multi-Sector Needs Assessment conducted by REACH was subjected to frequency analysis, percentage analysis, and binary logistic regression to confirm the factors associated with accessibility to mental healthcare services among Ukrainian household heads. Results: Older household heads, heads with high accessibility to healthcare facilities, and those with low health expenditures were highly likely to have low access to mental healthcare services. Household heads' awareness of household members' medical assistance eligibility was significantly and positively associated with the former's mental healthcare accessibility. Conclusion: This study revealed the mental health vulnerability of people living in GCAs in Ukraine, in which the situation progresses from conflict to war. The need for mental healthcare, which is adversely affected by armed conflict, is expected to increase. Accordingly, further studies should clarify the demand for and methods to enhance mental healthcare services to ensure the timely provision of these services in the future.
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Affiliation(s)
- Min-Hee Heo
- Department of Health Administration, Yonsei University Graduate School, Wonju, Republic of Korea
| | - Eun-Mi Song
- Department of Health Administration, Yonsei University Graduate School, Wonju, Republic of Korea
| | - Hui-Won Jeon
- Department of Healthcare Management, College of Health Sciences, Youngsan University, Yangsan, Republic of Korea
| | - Kyoung-Beom Kim
- Department of International Healthcare Management, Catholic University of Daegu, Gyeongsan, Republic of Korea
| | - Jin-Won Noh
- Division of Health Administration, College of Software and Digital Healthcare Convergence, Yonsei University, Wonju, Republic of Korea
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Noh JW, Lee LJ, Kim KB, Cha J, Kwon YD. Factors influencing injury or death due to traumatic events in Afghanistan's crisis-affected populations: a cross-sectional nationwide study. BMJ Open 2022; 12:e063329. [PMID: 36576193 PMCID: PMC9723898 DOI: 10.1136/bmjopen-2022-063329] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
OBJECTIVE Afghanistan, with one of the world's largest refugee populations, suffers an enormous burden of injury resulting in loss of life. This study aims to identify the epidemiology of injuries or death in the crisis-affected populations across Afghanistan and to investigate factors associated with injuries or deaths due to traumatic events. DESIGN Cross-sectional study. SETTING This study analysed Whole Afghanistan Assessment 2019 data. This survey geographically covered all 34 accessible provinces in Afghanistan. PARTICIPANTS 31 343 displaced and shock-affected households in Afghanistan. PRIMARY AND SECONDARY OUTCOME MEASURES Injury or death of household members due to traumatic events. RESULTS 2561 (8.2%) reported at least one household member had been injured or deceased because of a significant conflict or natural disaster in the past year. Households experienced significant events such as active conflict or violence (prevalence ratio, PR=5.575, p<0.001), earthquake (PR=3.118, p=0.004), flood (PR=1.534, p=0.008) and avalanche or heavy snowfall (PR=3.450, p<0.001) were significantly associated with injury or death. The likelihood of injury or death was significantly higher for long-distance households than for households living within a 5 km radius of the nearest healthcare facilities (6-10 km: PR=1.402, p=0.030; >10 km: PR=1.560, p=0.020). CONCLUSION The study provides an epidemiological profile of injuries or death in crisis-affected populations across Afghanistan. Results also suggest that certain factors place the crisis-affected populations in Afghanistan at high risk for injuries or death, which can inform the development of surveillance and prevention programmes, the monitoring of patterns over time and the formulation of healthcare policies.
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Affiliation(s)
- Jin-Won Noh
- Division of Health Administration, College of Software and Digital Healthcare Convergence, Yonsei University, Wonju, Gangwon-do, Korea (the Republic of)
| | - Lena J Lee
- Translational Biobehavioral and Health Disparities Branch, National Institutes of Health Clinical Center, Bethesda, Maryland, USA
| | - Kyoung-Beom Kim
- Industry-Academic Cooperation Foundation, Yonsei University, Wonju, Gangwon-do, Korea (the Republic of)
| | - Jiho Cha
- Moonsoul Graduate School of Future Strategy, Korea Advanced Institute of Science and Technology, Daejeon, Korea (the Republic of)
| | - Young Dae Kwon
- Department of Humanities and Social Medicine, College of Medicine and Catholic Institute for Healthcare Management, The Catholic University of Korea, Seoul, Korea (the Republic of)
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Noh JW, Jang JH, Yoon HS, Kim KB, Heo MH, Jang HE, Kim YJ, Lee Y. Evaluation of Salivary Biomarkers of Periodontal Disease Based on Smoking Status: A Systematic Review. Int J Environ Res Public Health 2022; 19:14619. [PMID: 36361498 PMCID: PMC9657317 DOI: 10.3390/ijerph192114619] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 11/04/2022] [Accepted: 11/04/2022] [Indexed: 06/16/2023]
Abstract
Saliva is a useful biomarker for diagnosing oral health conditions, including periodontal disease (PD). Smoking is a risk factor for PD. The aim of this systematic review was to summarize the salivary biomarkers associated with PD based on smoking status. A comprehensive search of the MEDLINE (via PubMed), EMBASE, Cochrane, SCOPUS, and Web of Sciences databases was conducted up to 1 January 2021 using key terms relevant to the topic of our research and Cochrane methodology and improved with searching a gray literature resource. The methodological quality of all included studies was assessed with the revised Quality Assessment of Diagnostic Accuracy Studies-2. Seven studies were included. Smokers had increased levels of malondialdehyde, sialic acid, salivary cortisol, salivary interleukin 1β, albumin, tissue inhibitor of matrix metalloproteinase (TIMP), and the pyridinoline cross-linked carboxyterminal telopeptide of type I collagen (ICTP), as well as decreased levels of superoxide dismutase, activity of lactate dehydrogenase, activity of enzyme activity of β-glucuronidase, uric acid, matrix metalloproteinase-8 (MMP-8)/TIMP-1 ratio, and combinations of MMP-8 and ICTP. However, mixed results were observed some studies in detecting glutathione peroxidase, MMP-8, and MMP-14. The results were interpreted with caution because of limitations in the number of included studies and the study design. Some salivary biomarkers are potentially useful in combination or alone for diagnosing PD. Methodological and systematic studies are needed to develop more effective biomarkers.
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Affiliation(s)
- Jin-won Noh
- Division of Health Administration, College of Software and Digital Healthcare Convergence, Yonsei University, Gangwon-do, Wonju 26493, Korea
| | - Jong-Hwa Jang
- Department of Dental Hygiene, College of Health Science, Dankook University, Chungcheongnam-do, Cheonan 31116, Korea
- Department of Public Health Science, Dankook University Graduate School, Chungcheongnam-do, Cheonan 31116, Korea
| | - Hae-Soo Yoon
- Department of Public Health Science, Dankook University Graduate School, Chungcheongnam-do, Cheonan 31116, Korea
| | - Kyoung-Beom Kim
- Department of Health Administration, Dankook University, Chungcheongnam-do, Cheonan 31116, Korea
- Industry-Academic Cooperation Foundation, Yonsei University, Gangwon-do, Wonju 26493, Korea
| | - Min-Hee Heo
- Department of Health Administration, Yonsei University Graduate School, Gangwon-do, Wonju 26493, Korea
| | - Ha-eun Jang
- Department of Healthcare Management, College of Bio Convergence, Eulji University, Gyeonggi-do, Seongnam 13135, Korea
| | - Young-Jin Kim
- Department of Health Administration, Yonsei University Graduate School, Gangwon-do, Wonju 26493, Korea
| | - Yejin Lee
- Department of Public Health Graduate School, Korea University, Seoul 02841, Korea
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Noh JW, Kim KB, Jang HE, Heo MH, Kim YJ, Cha J. Non-Communicable Diseases and Transitioning Health System in the Democratic People’s Republic of Korea during COVID-19 Lockdown. Healthcare (Basel) 2022; 10:healthcare10102095. [PMID: 36292542 PMCID: PMC9602564 DOI: 10.3390/healthcare10102095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Revised: 10/17/2022] [Accepted: 10/18/2022] [Indexed: 11/16/2022] Open
Abstract
While there are increasing concerns on COVID-19 situation in Democratic People’s Republic of Korea (DPRK, or North Korea), little is known about North Korea’s health system function for Non-Communicable Diseases. Given the scarcity of available evidence, a scoping review was conducted in peer review articles from MEDLINE, SCOPUS, and Web of Science, and policy literatures from Rodongshinmun, state-run media in North Korea to analyze the North Korea health system and COVID-19 pandemic. The transition to a market economy is expected to deepen the gap between the rich and the poor over access to health care, causing a new type of health inequality in North Korea. COVID-19 lockdown intensified the DPRK’s economic predicament exacerbating shortage of health financing on non-communicable diseases. The case study of mixed evidence from scoping review indicates that NCDs prevention and management are not functional in the transitioning health system under chronic economic crisis and isolation. This study indicates that NCDs prevention and management are not functional in the transitioning health system under chronic economic crisis and isolation. The destabilized markets under COVID-19 lockdown intensified the DPRK’s economic predicament and exacerbated the chronic shortage of health financing especially to NCDs.
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Affiliation(s)
- Jin-Won Noh
- Division of Health Administration, College of Software and Digital Health Care Convergence, Yonsei University, Wonju 26493, Korea
| | - Kyoung-Beom Kim
- Industry-Academic Cooperation Foundation, Yonsei University, Wonju 26493, Korea
| | - Ha-Eun Jang
- Department of Health Care Management, College of Bio Convergence, Eulji University, Seongnam 34824, Korea
| | - Min-Hee Heo
- Department of Health Administration, Yonsei University Graduate School, Wonju 26493, Korea
| | - Young-Jin Kim
- Department of Health Administration, Dankook University, Cheonan 31116, Korea
| | - Jiho Cha
- Moonsoul Graduate School of Future Strategy, KAIST, Daejeon 34141, Korea
- Correspondence: ; Tel.: +82-42-350-4040
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Noh JW, Cheon J, Kim KB, Song SE, Cha J, Kwon YD. Contributing Factors in Whether Displaced Households Want to Receive Humanitarian Information from Humanitarian Actors: Iraq Multi-Cluster Needs Assessment. Int J Environ Res Public Health 2022; 19:ijerph191610114. [PMID: 36011749 PMCID: PMC9408100 DOI: 10.3390/ijerph191610114] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Revised: 08/10/2022] [Accepted: 08/15/2022] [Indexed: 05/30/2023]
Abstract
Due to political conflict, insurgency, and the COVID-19, the number of displaced households in need of humanitarian support in Iraq has increased. This study investigated factors related to desire of displaced households to receive humanitarian information. Data from the eighth round of the Iraq Multi-Cluster Needs Assessment was used. We classified the household displacement status, identifying levels and types of humanitarian information that the households sought, together with whether the households were impacted by COVID-19. We identified safety and security, housing, water and electricity services, education, health care, and levels of humanitarian assistance resulted in significant differences between internally displaced person (IDP) and returnee households in terms of interest in receiving humanitarian information. The desire to receive humanitarian information was related to whether household members were unemployed due to COVID-19, displacement status, and walking time to reach the nearest health care facility and marketplace. Returnees and IDPs in Iraq are facing a new crisis. Their individual, structural, and environmental vulnerabilities are increasing commensurately. New strategies such as strategies using online or mobile communication that provide humanitarian information are needed to provide humanitarian information to vulnerable groups such as those who have lost jobs due to COVID-19, female heads of households, and those with health problems. In addition to traditional cash and voucher support, the use of the latest technologies such as smartphones and mobile clinics in humanitarian settings would be new strategies.
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Affiliation(s)
- Jin-Won Noh
- Division of Health Administration, College of Software and Digital Healthcare Convergence, Yonsei University, Wonju 26493, Korea
| | - Jooyoung Cheon
- Department of Nursing Science, Sungshin Women’s University, Seoul 02844, Korea
| | - Kyoung-Beom Kim
- Department of Health University, Dankook University, Cheonan 31116, Korea
| | - Si Eun Song
- Department of Health University, Dankook University, Cheonan 31116, Korea
- Industry-University Cooperation Foundation, Soonchunhyang University, Asan 31538, Korea
| | - Jiho Cha
- Moon Soul Graduate School of Future Strategy, Korea Advanced Institute of Science and Technology, Daejeon 34141, Korea
| | - Young Dae Kwon
- Department of Humanities and Social Medicine, College of Medicine and Catholic Institute for Healthcare Management, The Catholic University of Korea, Seoul 06591, Korea
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Heo MH, Kwon YD, Cheon J, Kim KB, Noh JW. Association between the Human Development Index and Confirmed COVID-19 Cases by Country. Healthcare (Basel) 2022; 10:healthcare10081417. [PMID: 36011075 PMCID: PMC9408439 DOI: 10.3390/healthcare10081417] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Revised: 07/26/2022] [Accepted: 07/28/2022] [Indexed: 11/16/2022] Open
Abstract
It is important to understand the ultimate control of COVID-19 in all countries around the world in relation to the characteristics of developed countries, LDCs, and the variety of transmission characteristics of COVID-19. Therefore, this study aimed to identify factors associated with confirmed cases of COVID-19 with a focus on the Human Development Index (HDI). The units of analysis used for the current study were countries, and dataset were aggregated from multiple sources. This study used COVID-19 data from Our World in Data, the Global Health Security Index, and the WORLD BANK. A total of 171 countries were included in the analysis. A multi-variable linear regression with a hierarchical framework was employed to investigate whether the HDI is associated with confirmed COVID-19 cases after controlling for the demographic and healthcare system characteristics of the study countries. For Model 2, which controlled for demographic and healthcare system characteristics, HDI (β = 0.46, p < 0.001, 95% CI = 2.64−10.87) and the number of physicians per 1000 people (β = 0.34, p < 0.01, 95% CI = 0.21−0.75) had significant associations with the total number of confirmed COVID-19 cases per million people. Countries with a high HDI level are able to conduct higher per capita testing, resulting in higher numbers of confirmed cases than in countries with lower HDI levels. This study has shown evidence that could be used by governments and international organizations to identify national characteristics and provide the international cooperation necessary to develop effective prevention and intervention methods to deal with the global pandemic.
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Affiliation(s)
- Min-Hee Heo
- Department of Health Administration, Yonsei University Graduate School, Wonju 220710, Korea;
| | - Young Dae Kwon
- Department of Humanities and Social Medicine, College of Medicine and Catholic Institute for Healthcare Management, The Catholic University of Korea, Seoul 06591, Korea;
| | - Jooyoung Cheon
- Department of Nursing Science, Sungshin Women’s University, Seoul 02844, Korea;
| | - Kyoung-Beom Kim
- Department of Health Administration, Dankook University Graduate School, Cheonan 31116, Korea;
| | - Jin-Won Noh
- Division of Health Administration, College of Software and Digital Healthcare Convergence, Yonsei University, Wonju 220710, Korea
- Correspondence: ; Tel.: +82-33-760-2198
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Noh JW, Kim MH, Lee Y, Kwon YD, Kim KB, Lee HJ, Yoo KB. Association between smokeless tobacco use and cigarette smoking amount by age. BMC Public Health 2022; 22:505. [PMID: 35292000 PMCID: PMC8922879 DOI: 10.1186/s12889-022-12929-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Accepted: 03/07/2022] [Indexed: 11/30/2022] Open
Abstract
BACKGROUND The use of smokeless tobacco has increased worldwide among young people. This study aimed to investigate the association between smokeless tobacco use and cigarette smoking amount in adult smoker groups stratified by age. METHOD 2013-2015 National Health Interview Survey was used. A total of 19,635 subjects were included in our analysis. Propensity score matching was used to adjust for selection and any other bias. Generalized estimating equation was used to analyze the association between smokeless tobacco use and cigarette smoking amount by age. RESULTS All 580 smokeless tobacco users were matched to 2,900 non-smokeless tobacco users. Among those who were aged under 30, smokeless tobacco use was positively associated with the number of cigarettes used per day. Smokeless tobacco users who were aged under 30 and tried quitting smoking used more cigarettes than those who did non-smokeless tobacco users. CONCLUSIONS The present study revealed that among those who were aged under 30, smokeless tobacco use was positively associated with the number of cigarettes used per day. This study could contribute to understand the behaviors and tendencies of smoking in young adulthood and to establish effective smoking cessation methods for their age.
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Affiliation(s)
- Jin-Won Noh
- Division of Health Administration, College of Software and Digital Healthcare Convergence, Yonsei University, Wonju, 220710 Korea
| | - Min-Hee Kim
- Department of Physical Therapy, Eulji University, Seongnam, Republic of Korea
| | - Yejin Lee
- Department of Public Health, Graduate School, Korea University, Seoul, 02841 Republic of Korea
| | - Young Dae Kwon
- Department of Humanities and Social Medicine, College of Medicine and Catholic Institute for Healthcare Management, The Catholic University of Korea, Seoul, Republic of Korea
| | - Kyoung-Beom Kim
- Department of Health Administration, Dankook University, Yongin, Republic of Korea
| | - Hae-Jeung Lee
- Department of Food & Nutrition, Gachon University, Seongnam, Republic of Korea
| | - Ki-Bong Yoo
- Division of Health Administration, College of Software and Digital Healthcare Convergence, Yonsei University, Wonju, 220710 Korea
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Lee SH, Noh JW, Kim Y, Ryoo HW, Park KH, Park SY, Lee S, Cheong HS, Heo ST, Hong KJ, Kim KB, Kwon KT. Expert Consensus on Measures to Promote Physical and Psychological Health among COVID-19-Related Healthcare Workers in Korea using Delphi Technique. Infect Chemother 2022; 54:247-257. [PMID: 35706073 PMCID: PMC9259905 DOI: 10.3947/ic.2021.0137] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Accepted: 04/03/2022] [Indexed: 11/29/2022] Open
Abstract
Background The coronavirus disease 2019 (COVID-19) pandemic has caused health problems and distress among healthcare workers (HCWs), so supportive measures to promote their health and relieve distress are needed. Materials and Methods We conducted two rounds of Delphi surveys with 20 COVID-19-related frontline healthcare professionals and public officials. The surveys evaluated means of supporting HCWs’ health by improving health care systems and working environments in terms of effectiveness and urgency. The validity of the measures was assessed by calculating the content validity ratio. Results The top-priority measures to support HCWs were “secure isolation units capable of treating severe cases” in the facility infrastructure category, “secure nursing staff dedicated for patients in the intensive care units” in the personnel infrastructure category, “improve communication between central office and frontline field” in the cooperation system category, “support personal protective equipment and infection control supplies” in the aid supplies category, and “realization of hazard pay” in the physical/mental health and compensation category. Conclusion There was consensus among the experts on the validity and priorities of policies in the facility, personnel, cooperation, supplies, and compensation categories regarding measures to promote COVID-19 related HCWs’ health.
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Affiliation(s)
- So Hee Lee
- Department of Psychiatry, National Medical Center, Seoul, Korea
| | - Jin-Won Noh
- Division of Health Administration, College of Software and Digital Healthcare Convergence, Yonsei University, Wonju, Korea
| | - Yeonjae Kim
- Division of Infectious Diseases, Department of Internal Medicine, National Medical Center, Korea
| | - Hyun Wook Ryoo
- Department of Emergency Medicine, School of Medicine, Kyungpook National University, Daegu, Korea
| | - Kyung-Hwa Park
- Department of Infectious Diseases, Chonnam National University Hospital, Chonnam National University Medical School, Gwangju, Korea
| | - Se Yoon Park
- Department of Hospital Medicine, Yongin Severance Hospital, Yonsei University College of Medicine, Yongin, Korea
- Centers for Digital Health, Yongin Severance Hospital, Yonsei University Health System, Yongin, Korea
| | - Shinwon Lee
- Department of Internal Medicine, Pusan National University School of Medicine and Medical Research Institute, Pusan National University Hospital, Busan, Korea
| | - Hae Suk Cheong
- Division of Infectious Diseases, Department of Internal Medicine, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Sang Taek Heo
- Division of Infectious Diseases, Department of Internal Medicine, College of Medicine, Jeju National University, Jeju, Korea
| | - Ki Jeong Hong
- Department of Emergency Medicine, Seoul National University College of Medicine and Hospital, Laboratory of Emergency Medical Services, Seoul National University Hospital Biomedical Research Institute, Seoul, Korea
| | - Kyoung-Beom Kim
- Department of Health Administration, Dankook University, Cheonan, Korea
| | - Ki Tae Kwon
- Division of Infectious Diseases, Department of Internal Medicine, Kyungpook National University Chilgok Hospital, School of Medicine, Kyungpook National University, Daegu, Korea
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Kim HJ, Shah SC, Hann HJ, Kazmi SZ, Kang T, Lee JH, Kim KB, Kang MJ, Ahn HS. Familial Risk of Inflammatory Bowel Disease: A Population-Based Cohort Study in South Korea. Clin Gastroenterol Hepatol 2021; 19:2128-2137.e15. [PMID: 33010407 PMCID: PMC8284845 DOI: 10.1016/j.cgh.2020.09.054] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Revised: 09/24/2020] [Accepted: 09/27/2020] [Indexed: 02/07/2023]
Abstract
BACKGROUND & AIMS Despite the rapid increase in inflammatory bowel disease (IBD), population-level familial risk estimates of IBDs still are lacking in Asian-Pacific countries. We aimed to quantify the familial risk of incident IBD among first-degree relatives (FDRs) of individuals with IBD according to age, sex, and familial relationship. METHODS Using the South Korea National Health Insurance database (2002-2017), which has complete population coverage and confirmed accuracy of both FDR information and IBD diagnoses, we constructed a cohort of 21,940,795 study subjects comprising 12 million distinct families. We calculated incidence risk ratios of ulcerative colitis (UC) or Crohn's disease (CD) in individuals of affected FDRs compared with individuals without affected FDRs. RESULTS Of 45,717 individuals with UC and 17,848 individuals with CD, 3.8% and 3.1% represented familial cases, respectively. Overall, there was a 10.2-fold (95% CI, 9.39-11.1) and a 22.1-fold (95% CI, 20.5-24.5) significantly higher adjusted risk of UC and CD among FDRs of individuals with vs without IBD. Familial risk was highest among twins, followed by nontwin siblings, and then offspring of affected parents. Familial risk generally was higher within generations (sibling-sibling) vs between generations (parent-offspring). Familial risk also increased with the increasing number of affected FDRs. CONCLUSIONS According to this population-based analysis, there is a substantially increased risk of IBD among FDRs of affected individuals, with the highest risk among siblings and for CD. These findings might help with an earlier diagnosis and appropriate therapeutic intervention in FDRs of individuals with IBD. Dedicated studies are needed to evaluate the contributions of shared early-in-life environmental exposures and genetic factors.
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Affiliation(s)
- Hyun Jung Kim
- Department of Preventive Medicine, College of Medicine, Korea University, Seoul, Korea
| | - Shailja C Shah
- Division of Gastroenterology, Hepatology, and Nutrition, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Hoo Jae Hann
- Medical Research Institute, College of Medicine, Ewha Womans University, Seoul, Korea
| | - Sayada Zartasha Kazmi
- Department of Preventive Medicine, College of Medicine, Korea University, Seoul, Korea
| | - Taeuk Kang
- Korean Research-based Pharma Industry Association (KRPIA), Seoul, Korea
| | - Jee Hyun Lee
- Department of Pediatrics, Korea University Ansan Hospital, Ansan, Korea
| | - Kyoung-Beom Kim
- Department of Public Health, Graduate School, Korea University, Seoul, Korea
| | - Min Ji Kang
- Department of Public Health, Graduate School, Korea University, Seoul, Korea
| | - Hyeong Sik Ahn
- Department of Preventive Medicine, College of Medicine, Korea University, Seoul, Korea.
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Lee SH, Noh JW, Kim KB, Lee HW, Jun JY, Lee WW. The Effects of Inhumane Treatment in North Korean Detention Facilities on the Posttraumatic-Stress Disorder Symptoms of North Korean Refugees. Psychiatry Investig 2021; 18:688-694. [PMID: 34340277 PMCID: PMC8328833 DOI: 10.30773/pi.2020.0427] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/11/2020] [Accepted: 05/07/2021] [Indexed: 11/28/2022] Open
Abstract
OBJECTIVE The study investigated the effects of severe human rights abuses in North Korean on Posttraumatic-stress disorder (PTSD) in North Korean Refugees (NKRs). METHODS The study included 300 NKRs (245 females and 55 males) who completed self-report questionnaires that assessed PTSD, experiences of imprisonment, and exposure to inhumane treatment, by authorities in North Korea. A moderation analysis was conducted using a hierarchical multiple regression model to determine whether a moderation effect existed. In the next step, a post-hoc probing procedure of the moderation effect was performed using multiple regression models that included conditional moderator variables. RESULTS The influence of the frequency of being imprisoned on PTSD varied as a function of recurrent exposure to inhumane treatment or punishment by authorities. Experiences of imprisonment were associated with PTSD only among those who were exposed to recurrent violence, such as beating or torture, by North Korean authorities. CONCLUSION The present findings highlight the significant effects of human rights violations, such as the inhumane treatment of prisoners in North Korea, on the PTSD of NKRs.
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Affiliation(s)
- So Hee Lee
- Department of Psychiatry, National Medical Center, Seoul, Republic of Korea
| | - Jin-Won Noh
- Division of Health Administration, College of Software and Digital Healthcare Convergence, Yonsei University, Wonju, Republic of Korea
| | - Kyoung-Beom Kim
- Department of Health Administration, Dankook University, Cheonan, Republic of Korea
| | - Hae-Woo Lee
- Department of Psychiatry, Seoul Medical Center, Seoul, Republic of Korea
| | - Jin Yong Jun
- Department of Psychiatry, National Center for Mental Health, Seoul, Republic of Korea
| | - Won Woong Lee
- Department of Social Welfare, Catholic Kwandong University, Gangneung, Republic of Korea
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Ahn HS, Kim HJ, Kazmi SZ, Kang T, Jun JB, Kang MJ, Kim KB, Kee SH, Kim DS, Hann HJ. Familial risk of Behçet's disease among first-degree relatives: a population-based aggregation study in Korea. Rheumatology (Oxford) 2021; 60:2697-2705. [PMID: 33241295 DOI: 10.1093/rheumatology/keaa682] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2020] [Revised: 09/19/2020] [Indexed: 11/14/2022] Open
Abstract
OBJECTIVE Previous studies have indicated that Behçet's disease (BD) has a genetic component, however population-level familial risk estimates are unavailable. We quantified the familial incidence and risk of BD in first-degree relatives (FDR) according to age, sex and type of family relationship. METHODS Using the Korean National Health Insurance database, which has full population coverage and confirmed FDR information, we constructed a cohort of 21 940 795 individuals comprising 12 million families, which were followed for a familial occurrence of BD from 2002 to 2017. Age- and sex-adjusted incidence risk ratios for BD were calculated in individuals with affected FDR compared with those without affected FDR. RESULTS Among the total study population, 53 687 individuals had affected FDR, of whom 284 familial cases developed BD with an incidence of 3.57/104 person-years. The familial risk (incidence) for BD was increased to 13.1-fold (2.71/104 person-years) in individuals with an affected father, 13.9-fold (3.11/104 person-years) with affected mother, 15.2-fold (4.9/104 person-years) with an affected sibling and the highest risk was 165-fold (46/104 person-years) with an affected twin. Familial risks showed age dependence, being higher in younger age groups. The sex-specific familial risk was similar in males and females. CONCLUSION This study provides quantified estimates of familial incidence and risk in FDR of BD patients in an entire population. Familial risks were higher within generation (sibling-sibling) vs between generations (parent-offspring). This implicates complex interactions between genetic factors and shared childhood environmental exposures in the pathogenesis of BD.
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Affiliation(s)
- Hyeong Sik Ahn
- Department of Preventive Medicine, College of Medicine, Korea University, Seoul, Korea
| | - Hyun Jung Kim
- Department of Preventive Medicine, College of Medicine, Korea University, Seoul, Korea
| | - Sayada Zartasha Kazmi
- Department of Preventive Medicine, College of Medicine, Korea University, Seoul, Korea
| | - Taeuk Kang
- Korean Research-based Industry Association (KRPIA), Seoul, Korea
| | - Jae-Bum Jun
- Department of Rheumatology, Hanyang University Hospital for Rheumatic Diseases, Seoul, Korea
| | - Min Ji Kang
- Department Public Health, Graduate School, Korea University, Seoul, Korea
| | - Kyoung-Beom Kim
- Department Public Health, Graduate School, Korea University, Seoul, Korea
| | - Sun-Ho Kee
- Department of Microbiology, College of Medicine, Korea University, Seoul, Korea
| | - Dong-Sook Kim
- Health Insurance Review and Assessment service (HIRA), Seoul, Korea
| | - Hoo Jae Hann
- Medical Research Institute, School of Medicine, Ewha Woman's University, Seoul, Korea
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Lee SH, Noh JW, Kim KB, Kim EJ, Oh J, Chae JH. Factors associated with post-traumatic stress disorder among bereaved family members and surviving students two and half years after the Sewol ferry accident in South Korea. Psychiatry Res 2021; 296:113666. [PMID: 33401093 DOI: 10.1016/j.psychres.2020.113666] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Accepted: 12/19/2020] [Indexed: 10/22/2022]
Abstract
BACKGROUND The Sewol ferry accident was a human-made disaster that caused the death of 250 high school students on board the ferry. Post-traumatic stress disorder (PTSD) is one of the most serious mental health sequela among those exposed to disasters. Therefore this study assessed the PTSD symptoms among bereaved family members and surviving students after the disaster, along with associated risk factors. METHODS Bereaved family members (N = 80) and surviving students (N = 48) of the disaster were assessed by self-reported questionnaires 2.5 years after the disaster. Sociodemographic and psychological variables (i.e., PTSD, depression, embitterment, rumination, and others) were obtained. Multivariable Poisson regression analyses were conducted to identify the factors associated with PTSD symptoms. RESULTS Sixty-seven (83.8%) of the bereaved family members and three (6.3%) of the surviving students were suffering from probable PTSD. Depression and embitterment were associated with PTSD symptoms in both groups. Social support and meaning in life were related to PTSD symptoms only in the surviving students, while intrusive rumination and posttraumatic growth were related to PTSD symptoms only in the bereaved family members. CONCLUSIONS These findings may help identify high-risk groups for PTSD and aid the development of psychological interventions to ameliorate PTSD symptoms of those affected by disasters.
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Affiliation(s)
- So Hee Lee
- Department of Psychiatry, National Medical Center, Seoul, South Korea
| | - Jin-Won Noh
- Department of Health Administration, Dankook University, Cheonan, South Korea
| | - Kyoung-Beom Kim
- Department of Health Administration, Dankook University, Cheonan, South Korea
| | - Eun Ji Kim
- Maumtodoc Mental Health Clinic, Gyeonggi, South Korea.
| | - Jihoon Oh
- Department of Psychiatry, Seoul St. Mary's Hospital, The Catholic University of Korea, College of Medicine, Seoul, South Korea
| | - Jeong-Ho Chae
- Department of Psychiatry, Seoul St. Mary's Hospital, The Catholic University of Korea, College of Medicine, Seoul, South Korea.
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Kim HJ, Ahn HS, Kazmi SZ, Kang T, Kim HS, Kang MJ, Kim KB, Kim DS, Hann HJ. Familial Risk of Vitiligo among First-Degree Relatives and Spouses: A Population-Based Cohort Study in Korea. J Invest Dermatol 2020; 141:921-924.e3. [PMID: 32888956 DOI: 10.1016/j.jid.2020.07.029] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Revised: 07/14/2020] [Accepted: 07/16/2020] [Indexed: 01/28/2023]
Affiliation(s)
- Hyun Jung Kim
- Department of Preventive Medicine, College of Medicine, Korea University, Seoul, Korea
| | - Hyeong Sik Ahn
- Department of Preventive Medicine, College of Medicine, Korea University, Seoul, Korea
| | - Sayada Zartasha Kazmi
- Department of Preventive Medicine, College of Medicine, Korea University, Seoul, Korea
| | - Taeuk Kang
- Korean Research-based Pharma Industry Association (KRPIA), Seoul, Korea
| | - Hei Sung Kim
- Department of Dermatology, Incheon St. Mary's Hospital, The Catholic University of Korea, Seoul, Korea; Department of Biomedicine and Health Sciences, The Catholic University of Korea, Seoul, Korea
| | - Min Ji Kang
- Department of Public Health, Graduate School, Korea University, Seoul, Korea
| | - Kyoung-Beom Kim
- Department of Public Health, Graduate School, Korea University, Seoul, Korea
| | - Dong-Sook Kim
- Health Insurance Review and Assessment Service (HIRA), Wonju, Korea
| | - Hoo Jae Hann
- Medical Research Institute, College of Medicine, Ewha Womans University, Seoul, Korea.
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Jun JB, Kim HJ, Kazmi SZ, Kang T, Kim KB, Kang MJ, Ahn HS. Significant Decline in the Incidence of Behcet's Disease in South Korea: A Nationwide Population-Based Study (2004-2017). Arthritis Care Res (Hoboken) 2020; 73:1689-1696. [PMID: 32770715 DOI: 10.1002/acr.24408] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2019] [Accepted: 08/04/2020] [Indexed: 11/09/2022]
Abstract
OBJECTIVE Change in the incidence of Behcet's disease (BD) from long term population-based data are scarce, although a possible decline has been reported. The objectives were to investigate the incidence, survival, and mortality of BD patients from 2004 to 2017 in South Korea. METHODS We analyzed a registry of rare intractable diseases and a claims database from the Health Insurance and Review Agency with information on BD patients between 2004 and 2017 using uniform diagnostic criteria. The study period was divided into three groups: 2004-2006, 2007-2010, and 2011-2017. RESULTS The annual incidence of BD decreased from 8.15 per 100,000 in 2004 to 1.51 in 2017, an 81.5% decrease. The annual percentage change was 6.32% for females and 6.15% for males. The decrease in BD incidence was greater for women and middle-aged people. The 3-year survival rate of BD patients during the 2011-2017 period was lower than those of the BD patients in 2004-2006 and 2007-2010, although there was no statistical difference. The standardized mortality rates increased significantly in the 2011-2017 period compared to the first two periods. CONCLUSION BD incidence decreased from 2004 to 2017 in South Korea. This decline in incidence might be attributable to changes in environmental factors, including a reduction in the burden of infectious diseases in the past decades and improvement of oral health during childhood. The unprecedented decline in the incidence of BD in South Korea without major changes in the genetic background suggests that environmental factors are very important to the development of BD.
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Affiliation(s)
- Jae-Bum Jun
- Department of Rheumatology, Hanyang University Hospital for Rheumatic Diseases, Seoul, Korea
| | - Hyun Jung Kim
- Department of Preventive Medicine, College of Medicine, Korea University, Seoul, Korea
| | - Sayada Zartasha Kazmi
- Department of Preventive Medicine, College of Medicine, Korea University, Seoul, Korea
| | - Taeuk Kang
- National Health Insurance Policy Research Institute, Seoul, Korea
| | | | - Min Ji Kang
- Department of Public Health, Korea University, Seoul, Korea
| | - Hyeong Sik Ahn
- Department of Preventive Medicine, College of Medicine, Korea University, Seoul, Korea
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Noh JW, Kim KB, Kwon YD, Kim JH. Association between sodium intake and lower urinary tract symptoms: does less sodium intake have a favorable effect or not? Transl Androl Urol 2020; 9:1135-1145. [PMID: 32676397 PMCID: PMC7354310 DOI: 10.21037/tau-19-808] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Background Sodium intake is known to be related with hypertension (HTN), which could impact lower urinary tracts symptoms (LUTS) indirectly. To date, only limited clinical evidences exist upon the association between sodium preference and LUTS. This cross-sectional study analyzed the association between sodium preference and the severity of LUTS in men. Methods A cross-sectional analysis has been performed and a total of 86,637 participants among total registered population of 229,226 in Korean Community Health Survey (KCHS) were included for final analysis. The adjusted odds ratio (OR) or coefficient with 95% confidence interval (CI) estimates were described to show the association between sodium preference and LUTS using negative binomial regression (for the IPSS total, IPSS voiding, and IPSS storage symptoms), ordinal logistic regression (for the IPSS grade), and binomial logistic regression (for the IPSS nocturia symptoms). Results Preference of salty taste group (high sodium preference) were significantly associated with higher IPSS total score (Coef =0.31; 95% CI: 0.27, 0.35), increased risk of severe IPSS grade (OR =1.46; 95% CI: 1.35, 1.57), higher IPSS voiding score (Coef =0.38; 95% CI: 0.32, 0.44), higher IPSS storage score (Coef =0.25; 95% CI: 0.22, 0.29), and increased risk of having IPSS nocturia symptoms (OR =1.21; 95% CI: 1.16, 1.27) compared to subjects with neutral group (normal sodium preference). Prediction of IPSS score according to salty taste preference showed u shaped distribution. Conclusions Sodium preference for taste were significantly associated with LUTS including voiding symptom, storage symptom and nocturia. Both higher and lower intake of sodium could be unfavorable factor for severity of LUTS.
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Affiliation(s)
- Jin-Won Noh
- Department of Health Administration, Dankook University, Cheonan, Korea
| | - Kyoung-Beom Kim
- Department of Health Administration, Dankook University, Cheonan, Korea
| | - Young Dae Kwon
- Department of Humanities and Social Medicine, College of Medicine and Catholic Institute for Healthcare Management, The Catholic University of Korea, Seoul, Korea
| | - Jae Heon Kim
- Department of Urology, Soonchunhyang University Hospital, Soonchuhyang University Medical College, Seoul, Korea
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17
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Abstract
Background Although there have been several studies about the relationship between alcohol or smoking and lower urinary tracts symptoms (LUTS). This study aimed to investigate the association between alcohol or smoking and severity of LUTS in men, as alcohol intake and cigarette smoking is important modifiable lifestyle factors for LUTS. Methods A cross-sectional analysis has been performed and a total of 86,707 participants in Korean Community Health Survey were included for final analysis. The adjusted odds ratio (OR) or coefficient with 95% confidence interval (CI) estimates were described to show the association between alcohol consumption or cigarette smoking and LUTS. Results Among the total subjects, 77,398 (89.3%), 7,532 (8.7%), and 1,777 (2.0%) had mild, moderate, and severe symptoms, respectively, according to International Prostate Symptom Score (IPSS) grade. Those who drank alcohol at least once per month were significantly associated with decreased risk of having the worst IPSS grade (OR: 0.80, 95% CI: 0.68 to 0.93). Those who smoked in the past but currently quitted and those who were daily smokers showed significantly increased risk of having the worst IPSS grade (past smoker, OR: 1.26, 95% CI: 1.14 to 1.39; daily smoker, OR: 1.21, 95% CI: 1.10 to 1.34). For nocturia, daily smoking showed positive effect (OR: 0.79, 95% CI: 0.75 to 0.84) whereas heavy alcohol drinking showed negative effect (OR: 1.22, 95% CI: 1.14 to 1.32) Conclusions Alcohol showed positive effect on LUTS except nocturia whereas cigarette smoking had negative effect on LUTS except nocturia. Daily smoking showed positive effect on nocturia whereas heavy alcohol drinking showed negative effect on nocturia.
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Affiliation(s)
- Jin-Won Noh
- Department of Health Administration, Dankook University, Cheonan, South Korea.,Global Health Unit, Department of Health Sciences, University Medical Centre Groningen, University of Groningen, Groningen, The Netherlands
| | - Ki-Bong Yoo
- Department of Health Administration, College of Health Sciences, Yonsei University, Wonju, South Korea.,Department of Information and Statistics, College of Health Sciences, Yonsei University, Wonju, South Korea
| | - Kyoung-Beom Kim
- Department of Health Administration, Dankook University, Cheonan, South Korea
| | - Jae Heon Kim
- Department of Urology, Soonchunhyang University Hospital, Soonchuhyang University Medical College, Seoul, South Korea
| | - Young Dae Kwon
- Department of Humanities and Social Medicine, College of Medicine and Catholic Institute for Healthcare Management, The Catholic University of Korea, Seoul, South Korea
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Noh JW, Kim KB, Cheon J, Lee Y, Kwon YD. Sex Differences in Factors Associated with General Life Satisfaction among Occupationally Injured Workers in Korea: A Panel Analysis of the 2013-2017 Panel Study of Worker's Compensation Insurance. Int J Environ Res Public Health 2019; 16:ijerph16224397. [PMID: 31717913 PMCID: PMC6888543 DOI: 10.3390/ijerph16224397] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Revised: 11/06/2019] [Accepted: 11/09/2019] [Indexed: 06/10/2023]
Abstract
The majority of previous occupational studies focused on factors affecting life satisfaction among occupationally injured workers have been based on a cross-sectional design, not a sex-aggregated model. This study aimed to identify sex differences in factors related to life satisfaction among workers who experienced work-related injuries using nationally representative panel data from South Korea. Data from the first to fifth (2013-2017) waves of the Panel Study of Worker's Compensation Insurance were analyzed. Of 1514 respondents, those who participated in all five survey waves were included in the final study population. To assess the factors associated with general life satisfaction of the occupationally injured workers, a panel data analysis was conducted using generalized estimating equations. The impacts of education level, return to work, self-rated health, task performance, self-esteem, and self-efficacy were significant in both sexes. On the other hand, the influence of age, marital status, personal labor income, and National Basic Livelihood Act recipient status significantly varied by sex. There were sex differences in factors related to general life satisfaction among occupationally injured workers, highlighting the need for sex-specific intervention programs. Employers, healthcare providers, and other stakeholders need to pay attention to vulnerable groups and investigate the most appropriate financial support.
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Affiliation(s)
- Jin-Won Noh
- Department of Health Administration, College of Health Science, Dankook University, Cheonan 31116, Korea;
- Global Health Unit, Department of Health Sciences, University Medical Centre Groningen, University of Groningen, Groningen 9713 GZ, The Netherlands
| | - Kyoung-Beom Kim
- Graduate School of Public Health, Korea University, Seoul 02841, Korea;
| | - Jooyoung Cheon
- Department of Nursing Science, Sungshin University, Seoul 01133, Korea;
| | - Yejin Lee
- Department of Healthcare Management, Eulji University, Seongnam 13135, Korea;
| | - Young Dae Kwon
- Department of Humanities and Social Medicine, College of Medicine and Catholic Institute for Healthcare Management, The Catholic University of Korea, Seoul 06591, Korea
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Noh JW, Kim KB, Lee Y, Lee JH, Kim EJ, Lee SH. Factors associated with health-related quality of life (HRQOL) in students who survived the Sewol ferry disaster in South Korea. J Affect Disord 2019; 249:223-225. [PMID: 30776663 DOI: 10.1016/j.jad.2019.02.035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/20/2018] [Revised: 01/12/2019] [Accepted: 02/11/2019] [Indexed: 11/20/2022]
Abstract
BACKGROUND The purpose of this study was to analyze the mental health status of Danwon students who survived the Sewol ferry disaster. The study also evaluated the mental health effects of the disaster on the survivors. METHODS Questionnaires were used to collect data from selected respondents. It was found that high family function and adolescent's strengths influence the quality of life of the survivors significantly. RESULTS Higher scores on the Family Adaptability and Cohesion Evaluation Scales (p < 0.001) or the strengths domain of Strengths and Difficulties Questionnaire (p = 0.027) were significantly associated with higher KIDSCREEN-27 scores. LIMITATION It is difficult to explain the causal relationship and generalize due to cross-sectionals study with small sample size. CONCLUSIONS Family function and adolescent's strengths had the significant relationship with higher quality of life of survivors. This finding offers important insight into understanding the effects of such accident, and suggest the importance the family and mental health to survivors of disasters.
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Affiliation(s)
- Jin-Won Noh
- Department of Healthcare Management, Eulji University, Seongnam, Republic of Korea; Global Health Unit, Department of Health Sciences, University Medical Centre Groningen, University of Groningen, Groningen, the Netherlands
| | - Kyoung-Beom Kim
- Department of Preventive Medicine, College of Medicine, Korea University, Seoul, Republic of Korea
| | - Yejin Lee
- Department of Healthcare Management, Eulji University, Seongnam, Republic of Korea
| | - Ju Hyun Lee
- Graduate School of Healthcare Management and Policy, The Catholic University of Korea, Seocho-gu, Seoul, Republic of Korea
| | - Eun Ji Kim
- Maumtodoc Mental Health Clinic, Ansan, Republic of Korea
| | - So Hee Lee
- Department of Psychiatry, National Medical Center, Seoul, Republic of Korea.
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Noh JW, Kim KB, Lee JH, Lee BH, Kwon YD, Heui Lee S. The elderly and falls: Factors associated with quality of life A cross-sectional study using large-scale national data in Korea. Arch Gerontol Geriatr 2017; 73:279-283. [PMID: 28886493 DOI: 10.1016/j.archger.2017.08.008] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2016] [Revised: 08/22/2017] [Accepted: 08/26/2017] [Indexed: 11/28/2022]
Affiliation(s)
- Jin-Won Noh
- Department of Healthcare Management, Eulji University, Seongnam, Gyeonggi-Do, Republic of Korea; Global Health Unit, Department of Health Sciences, University Medical Centre Groningen, University of Groningen, Groningen, The Netherlands.
| | - Kyoung-Beom Kim
- Graduate School of Public Health, Korea University, Seoul, Republic of Korea.
| | - Ju Hyun Lee
- Graduate School of Healthcare Management and Policy, The Catholic University of Korea, Seocho-Gu, Seoul, Republic of Korea.
| | - Byeong-Hui Lee
- Department of Healthcare Management, Eulji University, Seongnam, Gyeonggi-Do, Republic of Korea.
| | - Young Dae Kwon
- Department of Humanities and Social Medicine, College of Medicine and Catholic Institute for Healthcare Management, The Catholic University of Korea, Seocho-Gu, Seoul, Republic of Korea.
| | - Seon Heui Lee
- Department of Nursing Science, College of Nursing, Gacheon University, Incheon, Republic of Korea.
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21
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Noh JW, Kim KB, Lee JH, Kim MH, Kwon YD. Relationship of health, sociodemographic, and economic factors and life satisfaction in young-old and old-old elderly: a cross-sectional analysis of data from the Korean Longitudinal Study of Aging. J Phys Ther Sci 2017; 29:1483-1489. [PMID: 28931972 PMCID: PMC5599805 DOI: 10.1589/jpts.29.1483] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2017] [Accepted: 05/31/2017] [Indexed: 11/24/2022] Open
Abstract
[Purpose] The purpose of the present study was to investigate the relationship of health, sociodemographic, and economic factors and life satisfaction in young-old and old-old elderly groups. [Subjects and Methods] In the 2012 data from the Korean Longitudinal Study of Ageing, 4,134 of the final survey subjects aged 65 or older were analyzed. Multivaribale linear regression was performed to examine the degrees of explanatory power as factors (health, sociodemographic, and economic) in young-old (65 to 79 years) and old-old (80 years or older). [Results] Common variables that affected life satisfaction in both young-old and old-old subjects were health-related factors (depression, moderate to severe cognition, activities of daily living score), sociodemographic factors (level of education, familial communication, social activities), and economic factors (household assets, type of medical insurance). In the old-old group, age was an important associated factor. Mild cognitive impairment did not significantly affect life satisfaction in the old-old group, and only low-intensity social activities had an influence in the old-old group. [Conclusion] Difference in life satisfaction between the young-old and old-old elderly could be explained by gaps in the acceptance of the aging in health. Therefore, a personalized health consultation by life cycle could minimize these differences.
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Affiliation(s)
- Jin-Won Noh
- Department of Healthcare Management and Institute of Global Healthcare Research, Eulji University, Republic of Korea.,Department of Health Sciences, University Medical Centre Groningen, University of Groningen, The Netherlands
| | - Kyoung-Beom Kim
- Graduate School of Public Health, Korea University, Republic of Korea
| | - Ju Hyun Lee
- Graduate School of Healthcare Management and Policy, The Catholic University of Korea, Republic of Korea
| | - Min Hee Kim
- Department of Physical Therapy, College of Health Science, Eulji University, Republic of Korea
| | - Young Dae Kwon
- Department of Humanities and Social Medicine, College of Medicine and Catholic Institute for Healthcare Management, The Catholic University of Korea: 222 Banpo-daero, Seocho-gu, Seoul 06591, Republic of Korea
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22
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Thiesen G, Gribel BF, Freitas MPM, Oliver DR, Kim KB. Craniofacial features affecting mandibular asymmetries in skeletal Class II patients. J Orofac Orthop 2017; 78:437-445. [PMID: 28667433 DOI: 10.1007/s00056-017-0100-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2016] [Accepted: 02/14/2017] [Indexed: 11/30/2022]
Abstract
OBJECTIVES The aim of this study was to evaluate the characteristics affecting different intensities of mandibular asymmetry in skeletal Class II adults using three-dimensional images. This study is clinically relevant since it allows professionals to evaluate the morphological components related to these deformities and more carefully obtain correct diagnosis and treatment plan for such patients. METHODS Cone-beam computed tomography data of 120 Class II patients (40 with relative symmetry, 40 with moderate asymmetry, and 40 with severe asymmetry) were imported to SimPlant Ortho Pro® 2.0 software (Dental Materialise, Leuven, Belgium). Three reference planes were established and linear measurements were performed from specific landmarks to these planes, comparing the deviated side and the contralateral side in each group, as well as the differences between groups. The correlation between midline mandibular asymmetry and other variables was also evaluated. Statistical analyses considered a significance level of 5%. RESULTS Comparing the values obtained on the deviated side and on the contralateral side, there were significant differences for patients with moderate asymmetry and severe asymmetry. However, differences were seen more often in severe mandibular asymmetries. In those patients, there was a significant correlation of the gnathion deviation with lower dental midline deviation, difference in the lateral gonion positions, difference in the mandibular rami heights, and difference in the jugale vertical displacements. CONCLUSIONS For skeletal Class II patients with mandibular asymmetry, some craniofacial features are related to chin deviation and require proper evaluation, including the bilateral differences in the ramus height, mandibular body length, transverse and vertical positioning of the gonion and jugale points.
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Affiliation(s)
- Guilherme Thiesen
- Department of Orthodontics, University of Southern Santa Catarina, Av. Madre Benvenuta, 1285 Santa Monica, 88035-001, Florianopolis, SC, Brazil.
- Department of Orthodontics, Saint Louis University, St. Louis, MO, USA.
| | | | - M P M Freitas
- Department of Orthodontics, Luteran University of Brazil, Canoas, Brazil
| | - D R Oliver
- Department of Orthodontics, Saint Louis University, St. Louis, MO, USA
| | - K B Kim
- Department of Orthodontics, Saint Louis University, St. Louis, MO, USA
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Noh JW, Kim KB, Park H, Kwon YD. Gender Differences in Outpatient Utilization: A Pooled Analysis of Data from the Korea Health Panel. J Womens Health (Larchmt) 2017; 26:178-185. [DOI: 10.1089/jwh.2016.5771] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Jin-Won Noh
- Department of Healthcare Management, Eulji University, Seongnam, Korea
- Department of Health Sciences, Global Health, University Medical Centre Groningen/University of Groningen, Groningen, The Netherlands
| | - Kyoung-Beom Kim
- Department of Healthcare Management, Eulji University, Seongnam, Korea
- Department of Psychiatry, National Medical Center, Seoul, Korea
| | - Hyunchun Park
- Department of Healthcare Management, Eulji University, Seongnam, Korea
| | - Young Dae Kwon
- Department of Humanities and Social Medicine, College of Medicine and Catholic Institute for Healthcare Management, The Catholic University of Korea, Seoul, Korea
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Kim JT, Hong SH, Park HJ, Kim YS, Suh JY, Lee JK, Park JM, Maity T, Eckert J, Kim KB. Deformation mechanisms to ameliorate the mechanical properties of novel TRIP/TWIP Co-Cr-Mo-(Cu) ultrafine eutectic alloys. Sci Rep 2017; 7:39959. [PMID: 28067248 PMCID: PMC5220307 DOI: 10.1038/srep39959] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2016] [Accepted: 11/28/2016] [Indexed: 11/09/2022] Open
Abstract
In the present study, the microstructural evolution and the modulation of the mechanical properties have been investigated for a Co-Cr-Mo (CCM) ternary eutectic alloy by addition of a small amount of copper (0.5 and 1 at.%). The microstructural observations reveal a distinct dissimilarity in the eutectic structure such as a broken lamellar structure and a well-aligned lamellar structure and an increasing volume fraction of Co lamellae as increasing amount of copper addition. This microstructural evolution leads to improved plasticity from 1% to 10% without the typical tradeoff between the overall strength and compressive plasticity. Moreover, investigation of the fractured samples indicates that the CCMCu alloy exhibits higher plastic deformability and combinatorial mechanisms for improved plastic behavior. The improved plasticity of CCMCu alloys originates from several deformation mechanisms; i) slip, ii) deformation twinning, iii) strain-induced transformation and iv) shear banding. These results reveal that the mechanical properties of eutectic alloys in the Co-Cr-Mo system can be ameliorated by micro-alloying such as Cu addition.
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Affiliation(s)
- J T Kim
- Hybrid Materials Center (HMC), Faculty of Nanotechnology and Advanced Materials Engineering, Sejong University, 209 Neugdong-ro, Gwangjin-gu, Seoul 143-747, Republic of Korea
| | - S H Hong
- Hybrid Materials Center (HMC), Faculty of Nanotechnology and Advanced Materials Engineering, Sejong University, 209 Neugdong-ro, Gwangjin-gu, Seoul 143-747, Republic of Korea
| | - H J Park
- Hybrid Materials Center (HMC), Faculty of Nanotechnology and Advanced Materials Engineering, Sejong University, 209 Neugdong-ro, Gwangjin-gu, Seoul 143-747, Republic of Korea
| | - Y S Kim
- Hybrid Materials Center (HMC), Faculty of Nanotechnology and Advanced Materials Engineering, Sejong University, 209 Neugdong-ro, Gwangjin-gu, Seoul 143-747, Republic of Korea
| | - J Y Suh
- High Temperature Energy Materials Research Center, Korea Institute of Science and Technology, Hwarangno 14-gil 5, Seoungbuk-gu, Seoul 136-791, Republic of Korea
| | - J K Lee
- Division of Advanced Materials Engineering, Kongju National University, Cheonan 330-717, Republic of Korea
| | - J M Park
- Global Technology Center, Samsung Electronics Co., Ltd, 129 Samsung-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do 443-742, Republic of Korea
| | - T Maity
- Department Materials Physics, Montanuniversität Leoben, Jahnstraße 12, A-8700 Leoben, Austria
| | - J Eckert
- Department Materials Physics, Montanuniversität Leoben, Jahnstraße 12, A-8700 Leoben, Austria.,Erich Schmid Institute of Materials Science, Austrian Academy of Sciences, Jahnstraße 12, A-8700 Leoben, Austria
| | - K B Kim
- Hybrid Materials Center (HMC), Faculty of Nanotechnology and Advanced Materials Engineering, Sejong University, 209 Neugdong-ro, Gwangjin-gu, Seoul 143-747, Republic of Korea
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Boo YK, Lim HS, Kim JE, Kim KB, Won YJ. Qualitative Improvement Methods Through Analysis of Inquiry Contents for Cancer Registration. Asian Pac J Cancer Prev 2017; 18:1663-1670. [PMID: 28670886 PMCID: PMC6373816 DOI: 10.22034/apjcp.2017.18.6.1663] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Background: In Korea, the national cancer database was constructed after the initiation of the national cancer
registration project in 1980, and the annual national cancer registration report has been published every year since 2005.
Consequently, data management must begin even at the stage of data collection in order to ensure quality. Objectives:
To determine the suitability of cancer registries’ inquiry tools through the inquiry analysis of the Korea Central Cancer
Registry (KCCR), and identify the needs to improve the quality of cancer registration. Methods: Results of 721 inquiries
to the KCCR from 2000 to 2014 were analyzed by inquiry year, question type, and medical institution characteristics.
Using Stata version 14.1, descriptive analysis was performed to identify general participant characteristics, and chi-square
analysis was applied to investigate significant differences in distribution characteristics by factors affecting the quality
of cancer registration data. Results: The number of inquiries increased in 2005–2009. During this period, there were
various changes, including the addition of cancer registration items such as brain tumors and guideline updates. Of
the inquirers, 65.3% worked at hospitals in metropolitan cities and 60.89% of hospitals had 601–1000 beds. Tertiary
hospitals had the highest number of inquiries (64.91%), and the highest number of questions by type were 353 (48.96%)
for histological codes, 92 (12.76%) for primary sites, and 76 (10.54%) for reportable. Conclusions: A cancer registration
inquiry system is an effective method when not confident about codes during cancer registration, or when confronting
cancer cases in which previous clinical knowledge or information on the cancer registration guidelines are insufficient.
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Affiliation(s)
- Yoo-Kyung Boo
- Department of Healthcare Administration, College of Health Industry, Eulji University, Seongnam
| | - Hyun-Sook Lim
- Department of Public Health Administration, Hanyang Women’s University, Seoul
| | - Jung-Eun Kim
- Cancer Registration and Statistics Branch, National Cancer Center, Goyang, Korea
| | | | - Young-Joo Won
- Cancer Registration and Statistics Branch, National Cancer Center, Goyang, Korea,For Correspondence:
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Choi YM, Kim KB, Lee JH, Chun YK, An IS, An S, Bae S. DBC2/RhoBTB2 functions as a tumor suppressor protein via Musashi-2 ubiquitination in breast cancer. Oncogene 2016; 36:2802-2812. [PMID: 27941885 PMCID: PMC5442418 DOI: 10.1038/onc.2016.441] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2016] [Revised: 09/10/2016] [Accepted: 10/20/2016] [Indexed: 12/16/2022]
Abstract
The gene encoding ‘deleted in breast cancer 2' (DBC2), also referred to as RHOBTB2 (Rho-related BTB domain-containing protein 2), is classified as a tumor suppressor gene. DBC2 is a substrate-specific adaptor protein for a novel class of Cullin-3 (CUL3)-based E3 ubiquitin ligases; however, it is unclear if the substrate adaptor function of DBC2 is required for its tumor suppressor activity. Furthermore, the key substrates of DBC2-mediated ubiquitination have yet to be identified. In the present study, we established a genome-wide human cDNA library-based in vitro ubiquitination target screening assay and identified Musashi-2 (MSI2) as a novel ubiquitination target protein of DBC2. MSI2 directly interacted with DBC2, and this interaction promoted MSI2 polyubiquitination and proteasomal degradation in breast cancer cells. Overexpression and knockdown experiments demonstrated that DBC2 suppressed MSI2-associated oncogenic functions and induced apoptosis. Immunohistochemistry analysis of a breast cancer tissue microarray revealed that DBC2 and MSI2 protein levels are inversely correlated in both normal breast tissues and breast cancer tissues. Taken together, these findings provide evidence that DBC2 suppresses tumorigenesis in breast cancer by ubiquitinating MSI2.
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Affiliation(s)
- Y M Choi
- KU Center for Integrated Science and Technology, Konkuk University, Seoul, South Korea.,Korea Institute of Dermatological Sciences, 2nd Enterprise Research Building, Chungcheongbuk-do, South Korea
| | - K B Kim
- Korea Institute of Dermatological Sciences, 2nd Enterprise Research Building, Chungcheongbuk-do, South Korea
| | - J H Lee
- Laboratory of Molecular Oncology, Cheil General Hospital and Women's Healthcare Center, Dankook University, College of Medicine, Seoul, South Korea
| | - Y K Chun
- Department of Pathology, Cheil General Hospital and Women's Healthcare Center, Dankook University, College of Medicine, Seoul, South Korea
| | - I S An
- Korea Institute of Dermatological Sciences, 2nd Enterprise Research Building, Chungcheongbuk-do, South Korea
| | - S An
- KU Center for Integrated Science and Technology, Konkuk University, Seoul, South Korea
| | - S Bae
- KU Center for Integrated Science and Technology, Konkuk University, Seoul, South Korea
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Lee WY, Park MH, Kim KW, Song H, Kim KB, Lee CS, Kim NK, Park JK, Yang BC, Oh KB, Im GS, Chung HJ. Identification of lactoferrin and glutamate receptor-interacting protein 1 in bovine cervical mucus: A putative marker for oestrous detection. Reprod Domest Anim 2016; 52:16-23. [DOI: 10.1111/rda.12744] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2016] [Accepted: 07/01/2016] [Indexed: 11/28/2022]
Affiliation(s)
- WY Lee
- Department of Food Bioscience; College of Biomedical & Health Science; Konkuk University; Chung-ju Korea
| | - MH Park
- Department of Biomedical Chemistry; College of Biomedical & Health Science; Konkuk University; Chung-ju Korea
- Doosan Venture Digm 924; Dongan-gu Anyang Korea
| | - KW Kim
- Animal Biotechnology Division; National Institute of Animal Science; Wanju-gun Korea
| | - H Song
- Department of Animal Biotechnology; Konkuk University; Gwangjin-gu Seoul Korea
| | - KB Kim
- Korea Institute for Animal Products Quality Evaluation; Gunpo Korea
| | - CS Lee
- Department of Biomedical Chemistry; College of Biomedical & Health Science; Konkuk University; Chung-ju Korea
| | - NK Kim
- Experiment Research Institute; National Agricultural Products Quality Management Service (NAQS); Gimcheon Gyeongbuk Korea
| | - JK Park
- Department of Swine & Poultry Science; Korea National College of Agriculture and Fisheries; Jeonju Korea
| | - BC Yang
- Institute of Hanwoo; National institute of animal Science; Pyeongchang Korea
| | - KB Oh
- Animal Biotechnology Division; National Institute of Animal Science; Wanju-gun Korea
| | - GS Im
- Animal Biotechnology Division; National Institute of Animal Science; Wanju-gun Korea
| | - HJ Chung
- Animal Biotechnology Division; National Institute of Animal Science; Wanju-gun Korea
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Menzies AM, Ashworth MT, Swann S, Kefford RF, Flaherty K, Weber J, Infante JR, Kim KB, Gonzalez R, Hamid O, Schuchter L, Cebon J, Sosman JA, Little S, Sun P, Aktan G, Ouellet D, Jin F, Long GV, Daud A. Characteristics of pyrexia in BRAFV600E/K metastatic melanoma patients treated with combined dabrafenib and trametinib in a phase I/II clinical trial. Ann Oncol 2014; 26:415-21. [PMID: 25411413 DOI: 10.1093/annonc/mdu529] [Citation(s) in RCA: 68] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Pyrexia is a frequent adverse event with combined dabrafenib and trametinib therapy (CombiDT), but little is known of its clinical associations, etiology, or appropriate management. PATIENTS AND METHODS All patients on the BRF133220 phase I/II trial of CombiDT treated at the standard dose (150/2) were included for assessment of pyrexia (n = 201). BRAF and MEK inhibitor-naïve patients (n = 117) were included for efficacy analyses. Pyrexia was defined as temperature ≥38°C (≥100.4(°)F) or related symptoms. RESULTS Fifty-nine percent of patients developed pyrexia during treatment, 24% of which had pyrexia symptoms without a recorded elevation in body temperature. Pyrexia was grade 2+ in 60% of pyrexia patients. Median time to onset of first pyrexia was 19 days, with a median duration of 9 days. Pyrexia patients had a median of two pyrexia events, but 21% had three or more events. Various pyrexia management approaches were conducted in this study. A trend was observed between dabrafenib and hydroxy-dabrafenib exposure and pyrexia. No baseline clinical characteristics predicted pyrexia, and pyrexia was not statistically significantly associated with treatment outcome. CONCLUSIONS Pyrexia is a frequent and recurrent toxicity with CombiDT treatment. No baseline features predict pyrexia, and it is not associated with clinical outcome. Dabrafenib and metabolite exposure may contribute to the etiology of pyrexia. The optimal secondary prophylaxis for pyrexia is best studied in a prospective trial.
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Affiliation(s)
- A M Menzies
- Melanoma Institute Australia and The University of Sydney, Sydney, Australia
| | - M T Ashworth
- University of California San Francisco, San Francisco
| | - S Swann
- Clinical Statistics, GlaxoSmithKline, Collegeville, USA
| | - R F Kefford
- Melanoma Institute Australia and The University of Sydney, Sydney, Australia Westmead Hospital, University of Sydney, Sydney Westmead Millennium Institute, University of Sydney, Sydney, Australia
| | - K Flaherty
- Massachusetts General Hospital Center, Boston
| | - J Weber
- Department of Cutaneous Oncology, Moffitt Cancer Center, Tampa
| | - J R Infante
- Sarah Cannon Research Institute/Tennessee Oncology, PLLC, Nashville
| | - K B Kim
- California Pacific Medical Center, San Francisco
| | - R Gonzalez
- Department of Medical Oncology, The University of Colorado Cancer Center, Aurora
| | - O Hamid
- Department of Oncology, The Angeles Clinic and Research Institute, Santa Monica
| | - L Schuchter
- Penn Medicine, The University of Pennsylvania, Philadelphia, USA
| | - J Cebon
- Oncology Unit, Ludwig Institute for Cancer Research, Heidelberg, Australia
| | - J A Sosman
- Department of Oncology, Vanderbilt University Medical Centre, Nashville, USA
| | - S Little
- Clinical Statistics, GlaxoSmithKline, Collegeville, USA
| | - P Sun
- Clinical Statistics, GlaxoSmithKline, Collegeville, USA
| | - G Aktan
- Clinical Statistics, GlaxoSmithKline, Collegeville, USA
| | - D Ouellet
- Clinical Statistics, GlaxoSmithKline, Collegeville, USA
| | - F Jin
- Clinical Statistics, GlaxoSmithKline, Collegeville, USA
| | - G V Long
- Melanoma Institute Australia and The University of Sydney, Sydney, Australia Westmead Millennium Institute, University of Sydney, Sydney, Australia
| | - A Daud
- University of California San Francisco, San Francisco
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Kim K, Park JY, Kim KB, Lee N, Seo Y. Mechanically stable tuning fork sensor with high quality factor for the atomic force microscope. Scanning 2014; 36:632-639. [PMID: 25229367 DOI: 10.1002/sca.21169] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2014] [Revised: 08/01/2014] [Accepted: 08/26/2014] [Indexed: 06/03/2023]
Abstract
A quartz tuning fork was used instead of cantilever as a force sensor for the atomic force microscope. A tungsten tip was made by electrochemical etching from a wire of 50 µm diameter. In order to have mechanical stability of the tuning fork, it was attached on an alumina plate. The tungsten tip was attached on the inside end of a prong of a tuning fork. The phase shift was used as a feedback signal to control the distance between the tip and sample, and the amplitude was kept constant using a lock-in amplifier and a homemade automatic gain controller. Due to the mechanical stability, the sensor shows a high quality factor (∼10(3)), and the image quality obtained with this sensor was equivalent to that of the cantilever-based AFM.
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Affiliation(s)
- Kwangyoon Kim
- Faculty of Nanotechnology and Advanced Material Engineering, HMC, and GRI, Sejong University, Seoul, Korea
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30
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Min JJ, Nam K, Kim TK, Kim HJ, Seo JH, Hwang HY, Kim KB, Murkin JM, Hong DM, Jeon Y. Relationship between early postoperative C-reactive protein elevation and long-term postoperative major adverse cardiovascular and cerebral events in patients undergoing off-pump coronary artery bypass graft surgery: a retrospective study. Br J Anaesth 2014; 113:391-401. [PMID: 24829443 DOI: 10.1093/bja/aeu099] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Inflammation plays a key role in the pathogenesis of vascular occlusive diseases, such as myocardial infarction and stroke. Additionally, these conditions are predicted by C-reactive protein (CRP), a general inflammation marker. We hypothesized that the inflammation induced by surgery itself augments vascular occlusive disease. We retrospectively evaluated the relationship between postoperative CRP elevation and postoperative major adverse cardiovascular and cerebral events (MACCE) in patients undergoing off-pump coronary artery bypass surgery (OPCAB). METHODS The electronic medical records of 1046 patients who underwent OPCAB were reviewed retrospectively. The relationship between postoperative serum CRP and long-term postoperative MACCE (median follow-up 28 months) was investigated. RESULTS Patients were divided into quartiles according to maximum postoperative CRP levels (<18, 18-22, 22-27, ≥27 mg dl(-1)). The adjusted hazard ratios (HRs) were 2.15, 2.45, and 2.81, respectively (P=0.004), compared with the lowest quartile (<18 mg dl(-1)). In the multivariate analysis, the postoperative CRP quartile (HR 2.81; P=0.004), postoperative non-use of statins (HR 1.86; P=0.003), and postoperative maximum troponin I (HR 1.02; P<0.001) independently predicted postoperative MACCE, while preoperative CRP did not (P=0.203). Several parameters were correlated with postoperative maximum CRP level: body temperature (P=0.001) and heart rate (P<0.001) at the end of surgery; intraoperative last lactate (P<0.001) and base excess (P<0.001); and red blood cell transfusion (P=0.019). CONCLUSIONS Postoperative CRP elevation was associated with long-term postoperative MACCE in OPCAB patients. This was mitigated by postoperative statin medication. Furthermore, postoperative CRP elevation was associated with intraoperative parameters reflecting hypoperfusion and inflammation.
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Affiliation(s)
- J J Min
- Department of Anesthesiology and Pain Medicine, Seoul National University Hospital, Seoul, Republic of Korea
| | - K Nam
- Department of Anesthesiology and Pain Medicine, Samsung Medical Centre, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - T K Kim
- Department of Anesthesiology and Pain Medicine, Samsung Medical Centre, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - H J Kim
- Department of Anesthesiology and Pain Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - J H Seo
- Department of Anesthesiology and Pain Medicine, Samsung Medical Centre, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - H Y Hwang
- Department of Thoracic and Cardiovascular Surgery, Seoul National University Hospital, Daehakro 101, Jongno-gu 110-744, Seoul, Republic of Korea
| | - K B Kim
- Department of Thoracic and Cardiovascular Surgery, Seoul National University Hospital, Daehakro 101, Jongno-gu 110-744, Seoul, Republic of Korea
| | - J M Murkin
- Department of Anesthesiology and Perioperative Medicine, Schulich School of Medicine, University of Western Ontario, London, ON, Canada
| | - D M Hong
- Department of Anesthesiology and Pain Medicine, Samsung Medical Centre, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Y Jeon
- Department of Anesthesiology and Pain Medicine, Samsung Medical Centre, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
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Han JW, Lee KH, Hwang HY, Kim KB. Off-pump coronary revascularization performed concomitant with non-cardiovascular surgery. J Cardiothorac Surg 2013. [PMCID: PMC3844581 DOI: 10.1186/1749-8090-8-s1-o179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Oh SJ, Lee KH, Hwang HY, Kim KH, Kim KB, Ahn H. Long term results of valve-sparing aortic root reconstruction. J Cardiothorac Surg 2013. [PMCID: PMC3844728 DOI: 10.1186/1749-8090-8-s1-o49] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Henary H, Hong DS, Falchook GS, Tsimberidou A, George GC, Wen S, Wheler J, Fu S, Naing A, Piha-Paul S, Janku F, Kim KB, Hwu P, Kurzrock R. Melanoma patients in a phase I clinic: molecular aberrations, targeted therapy and outcomes. Ann Oncol 2013; 24:2158-65. [PMID: 23576709 DOI: 10.1093/annonc/mdt115] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND The purpose of the study was to assess the outcome of patients with advanced melanoma treated with matched molecularly targeted therapy. PATIENTS AND METHODS We reviewed 160 consecutive patients with metastatic melanoma treated in the phase I program (N = 35 protocols). Treatment was considered to be 'matched' (N = 84) if at least one drug in the regimen was known to inhibit the functional activity of at least one of the patient's mutations. RESULTS Of 160 patients, 134 (83.7%) had adequate tissue for molecular analysis; 69% (110 of 160) had ≥1 mutation: 61.2% (82 of 134), BRAF; 20.7% (23 of 111), NRAS; 2.6% (2 of 77), KIT; 2.3% (1 of 44), KRAS; 20% (1 of 5), GNAQ; 11.1% (1 of 9), P53 and 2.6% (1 of 39), coexisting mutations in BRAF and PIK3CA. Eighty-four patients (52.4%) were treated with matched-targeted agents, most of whom had BRAF mutations (N = 74). Twenty-six percent of patients (41 of 160) achieved a complete or partial remission (CR/PR) [40% (34 of 84)) on a matched phase I protocol versus 9.2% (7 of 76) for those on a non-matched study (P ≤ 0.0001)]. The median progression-free survival (PFS) (95% CI) was longer for patients treated on a matched phase I trial than on their prior first standard treatment [5.27 (4.10, 6.44) versus 3.10 (1.92, 4.28) months, P = 0.023], but not on non-matched phase I treatment. Multivariable analysis showed that matched therapy was an independent predictor of higher CR/PR rates, prolonged PFS and survival. CONCLUSIONS For melanoma patients, especially those with BRAF mutations, administering molecularly matched agents can be associated with better outcomes, including longer PFS compared with their first-line systemic therapy.
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Affiliation(s)
- H Henary
- Department of Investigational Cancer Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, TX 77230, USA
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Abstract
Although a number of methods using scanning probe lithography to pattern graphene have already been introduced, the fabrication of real devices still faces limitations. We report graphite patterning using scanning probe lithography with control of the gas environment. Patterning processes using scanning probe lithography of graphite or graphene are normally performed in air because water molecules forming the meniscus between the tip and the sample mediate the etching reaction. This water meniscus, however, may prevent uniform patterning due to its strong surface tension or large contact angle on surfaces. To investigate this side effect of water, our experiment was performed in a chamber where the gas environment was controlled with methyl alcohol, oxygen or isopropanol gases. We found that methyl alcohol facilitates graphite etching, and a line width as narrow as 3 nm was achieved as methyl alcohol also contains an oxygen atom which gives rise to the required oxidation. Due to its low surface tension and highly adsorptive behavior, methyl alcohol has advantages for a narrow line width and high speed etching conditions.
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Affiliation(s)
- Joonkyu Park
- Faculty of Nanotechnology and Advanced Material Engineering, and Graphene Research Institute, Sejong University, Seoul, 143-747, Korea
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Kwon S, Cho Y, Cho K, Lee S, Ji Y, Jung H, Kim KB, Kim KM. SU-E-T-197: Normoxic Polymer Gel Dosimetry for Intensity Modulated Radiation Therapy. Med Phys 2011. [DOI: 10.1118/1.3612147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Yong H, Lee H, Kim KB, Lee NS, Seo Y. Application of scanning probe lithography to graphite patterning. J Nanosci Nanotechnol 2011; 11:1397-1400. [PMID: 21456197 DOI: 10.1166/jnn.2011.3391] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
We applied the scanning probe lithographic technique to a graphite patterning in air and analyzed the patterned sample with the lateral force microscopy and Raman spectroscopy. The local electric field generated from a tip caused either etching or oxidization depending on the electric field intensity in air. We have found that the frictional force between the tip and local oxidized graphite surface was increased remarkably from lateral force analysis. Also, it was found that the graphene layer was peeled from the graphite surface in the etching process, which could be a potential tool as a top-down nano-fabrication process for the graphene nano device without contamination.
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Affiliation(s)
- Hyeondeuk Yong
- Faculty of Nanotechnology and Advanced Material Engineering, Sejong University, Seoul 143-747, South Korea
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Bedikian AY, DeConti RC, Conry R, Agarwala S, Papadopoulos N, Kim KB, Ernstoff M. Phase 3 study of docosahexaenoic acid-paclitaxel versus dacarbazine in patients with metastatic malignant melanoma. Ann Oncol 2010; 22:787-793. [PMID: 20855467 DOI: 10.1093/annonc/mdq438] [Citation(s) in RCA: 90] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Docosahexaenoic acid-paclitaxel (DHA-paclitaxel, Taxoprexin(®)) is made by covalently conjugating the essential fatty acid DHA to the paclitaxel molecule. Preclinical studies of DHA-paclitaxel have demonstrated increased activity relative to paclitaxel and the potential for an improved therapeutic ratio. In the present study, the efficacy and toxicity profiles of DHA-paclitaxel were compared with those of dacarbazine. METHODS In this study, 393 chemonaive patients with metastatic melanoma were randomly assigned to receive either DHA-paclitaxel at a starting dose of 900 mg/m(2) IV on day 1 every 3 weeks or dacarbazine at a starting dose of 1000 mg/m(2) IV on day 1 every 3 weeks. The primary end point of the study was the comparison of overall survival (OS). RESULTS No significant difference in OS was noted between patients in the DHA-paclitaxel and dacarbazine arms. Similarly, there were no significant differences in response rate, duration of response, time to progression, and time to treatment failure between the two drugs. Safety results of the two drugs were as predicted from prior studies. Myelosuppression was more common with DHA-paclitaxel. CONCLUSIONS DHA-paclitaxel was not superior to dacarbazine. We conclude that further studies with the drug on an every 3-week schedule in melanoma are not warranted.
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Affiliation(s)
- A Y Bedikian
- Department of Melanoma Medical Oncology, The University of Texas M. D. Anderson Cancer Center, Houston.
| | - R C DeConti
- Department of Cutaneous Oncology, H. Lee Moffitt Cancer Center & Research Institute, Tampa
| | - R Conry
- Division of Hematology & Oncology, Kirkland Clinic at Acton Road, Birmingham
| | - S Agarwala
- Department of Hematology/Oncology, St Luke's Cancer Center, Bethlehem
| | - N Papadopoulos
- Department of Melanoma Medical Oncology, The University of Texas M. D. Anderson Cancer Center, Houston
| | - K B Kim
- Department of Melanoma Medical Oncology, The University of Texas M. D. Anderson Cancer Center, Houston
| | - M Ernstoff
- Department of Hematology/Oncology, Dartmouth-Hitchcock Medical Center, Lebanon, USA
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Han HR, Lee H, Kim MT, Kim KB. Tailored lay health worker intervention improves breast cancer screening outcomes in non-adherent Korean-American women. Health Educ Res 2009; 24:318-29. [PMID: 18463411 PMCID: PMC2654061 DOI: 10.1093/her/cyn021] [Citation(s) in RCA: 62] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2007] [Accepted: 03/20/2008] [Indexed: 05/25/2023]
Abstract
Despite rapidly increasing incidence rates of breast cancer, recent immigrants such as Korean-American (KA) women report disproportionately lower utilization of screening tests compared with other ethnic groups. Early screening of breast cancer for this population may be greatly facilitated by indigenous lay health workers (LHWs). We conducted an intervention trial with a 6-month follow-up. Trained LHWs recruited 100 KA women 40 years of age or older who had not had a mammogram during the past 2 years. Ninety-three completed follow-up questionnaires. A 120-min, in-class education combined with LHW follow-up counseling and navigation assistance through the health care system was provided. Rates of breast cancer screening behaviors significantly increased at 6 months (P < 0.001); changes between pre- and post-intervention were 31.9% for mammography, 23% for clinical breast examination and 36.2% for breast self-examination. Modesty toward screening significantly decreased over time, but we did not find any significant differences in breast cancer knowledge and beliefs before and after the intervention. Results support the efficacy of this neighborhood-based, culturally sensitive intervention. Further research should seek to replicate these findings and to incorporate more self-care skills such as health literacy when designing an intervention program for linguistically and culturally isolated immigrant women.
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Affiliation(s)
- Hae-Ra Han
- School of Nursing, Johns Hopkins University, 525 North Wolfe Street, Baltimore, MD 21205, USA.
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Wes Fleming J, Buschang PH, Kim KB, Oliver DR. Posttreatment occlusal variability among angle Class I nonextraction patients. Angle Orthod 2008; 78:625-30. [PMID: 18302460 DOI: 10.2319/0003-3219(2008)078[0625:povaac]2.0.co;2] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2007] [Accepted: 08/01/2007] [Indexed: 11/23/2022] Open
Abstract
OBJECTIVE To test the hypothesis that variability among posttreatment Angle Class I, nonextraction patients is not related to patient and treatment factors. MATERIALS AND METHODS One hundred thirty-eight subjects were randomly selected from the archives of the Department of Orthodontics, St Louis University. Patient factors evaluated included age, sex, mandibular plane angle, and ANB angle; treatment factors included active treatment time and supervising orthodontist. Objective Grading System (OGS) scores for six of the criteria (excluding interproximal contacts and root angulations) and the anterior Bolton ratio were measured on the posttreatment study casts. RESULTS The partial mean overall OGS score was 24.9 +/- 8.0. Occlusal contact was the most important component contributing to the overall score, followed by alignment. Variation in the OGS scores was explained by sex, pretreatment mandibular plane and ANB angles, the posttreatment anterior Bolton ratio, and treatment duration. The partial overall OGS scores increased by approximately one point for every 4 degrees increase in the mandibular plane angle and nearly one point for every 3 additional months of treatment. Approximately 16% and 15% of the variation in alignment and buccolingual inclination, respectively, was due to the treating orthodontist. CONCLUSIONS Posttreatment occlusal variability among Class I nonextraction patients can be partially explained by patient- and treatment-related factors.
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Affiliation(s)
- J Wes Fleming
- Department of Orthodontics, St Louis University, St Louis, MO, USA
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Abstract
The use of community health workers (CHWs) or lay health advisors has been increasingly popular as an effective means of secondary prevention for cardiovascular health in hard-to-reach, underserved populations. Yet, published evaluations of the CHW training programs are rare. The purpose of this article is to report the results of an evaluation of a CHW training program for hypertension and diabetes management for Korean-American seniors. Forty-eight hours of training was developed and delivered to 12 Korean CHWs. Evaluation of the training program involved CHW surveys, trainer observation and debriefing and CHW focus groups. Testing of CHW knowledge showed that all CHWs met the minimum required knowledge level of 70%. Independent ratings by two trainer observations revealed that the overall CHW performance was satisfactory. Both CHW ratings and focus group data indicated that the training program met their expectation (average 9.3 on a 10-point scale) and was successful in empowering them to assume their role as a 'health initiator', 'health advertising agent' or 'health role model'. While this course is judged to be effective in general, future research is warranted to determine whether CHW provision of care and support will affect health outcomes in the target population.
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Affiliation(s)
- Hae-Ra Han
- Johns Hopkins University School of Nursing, 525 North Wolfe Street, Baltimore, MD 21205, USA.
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Kim KB, Faderl S, Hwang CS, Khuri FR. Chronic myelomonocytic leukaemia after platinum-based therapy for non-small cell lung cancer: case report and review of the literature. J Clin Pharm Ther 2006; 31:401-6. [PMID: 16882113 DOI: 10.1111/j.1365-2710.2006.00748.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Chronic myelomonocytic leukaemia (CMML) is a preleukaemic condition with myeloproliferative features, and classified as a part of myelodysplastic syndrome (MDS). Other than alkylating agents and topoisomerase II inhibitors, there is less evidence that chemotherapeutic drugs are associated with therapy-related CMML, acute leukaemia or MDS. We present a patient who developed CMML within 2 years of platinum-based chemotherapy for a metastatic non-small cell lung cancer. He received a cumulative dose of 240 mg/m(2) of cisplatin, and 1123 mg/m(2) of carboplatin before developing CMML. The cytogenetic study revealed trisomy 8. This is the first reported case that links platinum-based therapy with development of CMML with trisomy 8. Although the relationship between platinum therapy and the development of CMML is difficult to assess due to combinational nature of therapy in most cases, physicians should consider the possibility of CMML in patients with symptoms or signs suggestive of haematologic malignancy after platinum therapy.
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Affiliation(s)
- K B Kim
- Department of Melanoma Medical Oncology, The University of Texas, M.D. Anderson Cancer Center, Houston, TX 77030, USA.
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Kim KB, Shanyfelt LM, Hahn DW. Analysis of dense-medium light scattering with applications to corneal tissue: experiments and Monte Carlo simulations. J Opt Soc Am A Opt Image Sci Vis 2006; 23:9-21. [PMID: 16478056 DOI: 10.1364/josaa.23.000009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
Dense-medium scattering is explored in the context of providing a quantitative measurement of turbidity, with specific application to corneal haze. A multiple-wavelength scattering technique is proposed to make use of two-color scattering response ratios, thereby providing a means for data normalization. A combination of measurements and simulations are reported to assess this technique, including light-scattering experiments for a range of polystyrene suspensions. Monte Carlo (MC) simulations were performed using a multiple-scattering algorithm based on full Mie scattering theory. The simulations were in excellent agreement with the polystyrene suspension experiments, thereby validating the MC model. The MC model was then used to simulate multiwavelength scattering in a corneal tissue model. Overall, the proposed multiwavelength scattering technique appears to be a feasible approach to quantify dense-medium scattering such as the manifestation of corneal haze, although more complex modeling of keratocyte scattering, and animal studies, are necessary.
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Affiliation(s)
- K B Kim
- Department of Mechanical and Aerospace Engineering, University of Florida, Gainesville, Florida 32611, USA
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Kim NH, Kim KB, Kim DL, Kim SG, Choi KM, Baik SH, Choi DS, Kang YS, Han SY, Han KH, Ji YH, Cha DR. Plasma and urinary vascular endothelial growth factor and diabetic nephropathy in Type 2 diabetes mellitus. Diabet Med 2004. [PMID: 15154937 DOI: 10.1111/j.1464-5491-2004.01200.x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
AIMS Vascular endothelial growth factor (VEGF) has been implicated in the pathogenesis of diabetes mellitus. We determined whether alterations of plasma and urinary VEGF levels are related to diabetic nephropathy in Type 2 diabetic patients. METHODS One hundred and seven patients and 47 healthy controls were studied. Study subjects were divided into four groups using urinary albumin-to-creatinine ratio (ACR): a non-diabetic healthy control group (n = 47), a normoalbuminuric diabetic group (n = 37), a microalbuminuric diabetic group (n = 37) and an overt proteinuric diabetic group (n = 33). VEGF levels were measured by enzyme-linked immunosorbent assay. RESULTS (i) Urinary VEGF concentrations were significantly higher in the diabetic groups, even at the normoalbuminuric stage (log VEGF/Cr, normoalbuminuria; 4.33 +/- 1.06 vs. control; 3.53 +/- 0.79, P = 0.009). Urinary VEGF excretions increased as diabetic nephropathy advanced. (ii) Plasma and urinary VEGF levels were higher in hypertensive diabetic patients than in the normotensive individuals with diabetes. (iii) In those with diabetes, plasma VEGF levels were found to be positively correlated with plasma urea (r = 0.398, P = 0.039) and urinary ACR (r = 0.251, P = 0.044), and urinary VEGF to be positively correlated with urinary ACR (r = 0.645, P < 0.001), and creatinine (r = 0.336, P = 0.009), and to be negatively correlated with serum albumin (r = -0.557, P < 0.001). Urinary VEGF and serum creatinine were independently correlated with urinary ACR. CONCLUSIONS Urinary excretion of VEGF increased during the earlier stage of diabetic nephropathy and was significantly correlated with urinary albumin excretion. This suggests that urinary VEGF might be used as a sensitive marker of diabetic nephropathy and for predicting disease progression.
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Affiliation(s)
- N H Kim
- Department of Internal Medicine, Korea University Hospital, Ansan City, Kyungki-Do, Korea
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Kim NH, Kim KB, Kim DL, Kim SG, Choi KM, Baik SH, Choi DS, Kang YS, Han SY, Han KH, Ji YH, Cha DR. Plasma and urinary vascular endothelial growth factor and diabetic nephropathy in Type 2 diabetes mellitus. Diabet Med 2004; 21:545-51. [PMID: 15154937 DOI: 10.1111/j.1464-5491.2004.01200.x] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
AIMS Vascular endothelial growth factor (VEGF) has been implicated in the pathogenesis of diabetes mellitus. We determined whether alterations of plasma and urinary VEGF levels are related to diabetic nephropathy in Type 2 diabetic patients. METHODS One hundred and seven patients and 47 healthy controls were studied. Study subjects were divided into four groups using urinary albumin-to-creatinine ratio (ACR): a non-diabetic healthy control group (n = 47), a normoalbuminuric diabetic group (n = 37), a microalbuminuric diabetic group (n = 37) and an overt proteinuric diabetic group (n = 33). VEGF levels were measured by enzyme-linked immunosorbent assay. RESULTS (i) Urinary VEGF concentrations were significantly higher in the diabetic groups, even at the normoalbuminuric stage (log VEGF/Cr, normoalbuminuria; 4.33 +/- 1.06 vs. control; 3.53 +/- 0.79, P = 0.009). Urinary VEGF excretions increased as diabetic nephropathy advanced. (ii) Plasma and urinary VEGF levels were higher in hypertensive diabetic patients than in the normotensive individuals with diabetes. (iii) In those with diabetes, plasma VEGF levels were found to be positively correlated with plasma urea (r = 0.398, P = 0.039) and urinary ACR (r = 0.251, P = 0.044), and urinary VEGF to be positively correlated with urinary ACR (r = 0.645, P < 0.001), and creatinine (r = 0.336, P = 0.009), and to be negatively correlated with serum albumin (r = -0.557, P < 0.001). Urinary VEGF and serum creatinine were independently correlated with urinary ACR. CONCLUSIONS Urinary excretion of VEGF increased during the earlier stage of diabetic nephropathy and was significantly correlated with urinary albumin excretion. This suggests that urinary VEGF might be used as a sensitive marker of diabetic nephropathy and for predicting disease progression.
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Affiliation(s)
- N H Kim
- Department of Internal Medicine, Korea University Hospital, Ansan City, Kyungki-Do, Korea
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Choi KM, Lee J, Kim YH, Kim KB, Kim DL, Kim SG, Shin DH, Kim NH, Park IB, Choi DS, Baik SH. Relation between insulin resistance and hematological parameters in elderly Koreans-Southwest Seoul (SWS) Study. Diabetes Res Clin Pract 2003; 60:205-12. [PMID: 12757983 DOI: 10.1016/s0168-8227(03)00059-7] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
In this study, we investigated the relation between insulin resistance and hematological parameters in elderly Koreans. This study included 1314 non-diabetic subjects over the age of 60, selected from a cross-sectional study, which was conducted in 1999 in Seoul, Korea. We measured fasting and post-load 2 h plasma glucose, insulin levels, lipid profiles, anthropometric measures, and hematological parameters. The degree of insulin resistance was assessed using the homeostasis model assessment (HOMA). We found a correlation between insulin resistance and hemoglobin concentrations in non-smoking men (r=0.20, P=0.0186). In non-smoking women, insulin resistance correlated with hemoglobin (r=0.10, P=0.0017) and with white blood cell (WBC) count (r=0.15, P=0.001). Hemoglobin concentrations and WBC counts were also associated with other components of the insulin resistance syndrome such as body mass index, blood pressure, lipid profiles and fasting plasma insulin levels (surrogate for insulin resistance). Furthermore, the group in the upper quartile for insulin resistance showed higher hemoglobin concentrations and WBC counts than the lower quartile, independent of smoking status and serum iron concentrations. Using HOMA-IR as a dependent variable in a multiple regression analysis, age, body mass index (BMI), waist-to-hip ratio (WHR), systolic blood pressure, HDL cholesterol, triglyceride, WBC count, hemoglobin, hematocrit and serum TIBC were significant. Our results provide support for a relation between insulin resistance/hyperinsulinemia and hematological parameters such as hemoglobin concentrations and WBC counts in elderly Koreans. This suggests that increased erythropoiesis and subclinical inflammation could be part of the metabolic syndrome in elderly Koreans.
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Affiliation(s)
- K M Choi
- Department of Internal Medicine, College of Medicine, Korea University Guro Hospital, 80 Guro-Dong, Guro-Gu, Seoul 152-050, South Korea
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Garrett IR, Chen D, Gutierrez G, Zhao M, Escobedo A, Rossini G, Harris SE, Gallwitz W, Kim KB, Hu S, Crews CM, Mundy GR. Selective inhibitors of the osteoblast proteasome stimulate bone formation in vivo and in vitro. J Clin Invest 2003; 111:1771-82. [PMID: 12782679 PMCID: PMC156102 DOI: 10.1172/jci16198] [Citation(s) in RCA: 259] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
We have found that the ubiquitin-proteasome pathway exerts exquisite control of osteoblast differentiation and bone formation in vitro and in vivo in rodents. Structurally different inhibitors that bind to specific catalytic beta subunits of the 20S proteasome stimulated bone formation in bone organ cultures in concentrations as low as 10 nM. When administered systemically to mice, the proteasome inhibitors epoxomicin and proteasome inhibitor-1 increased bone volume and bone formation rates over 70% after only 5 days of treatment. Since the ubiquitin-proteasome pathway has been shown to modulate expression of the Drosophila homologue of the bone morphogenetic protein-2 and -4 (BMP-2 and BMP-4) genes, we examined the effects of noggin, an endogenous inhibitor of BMP-2 and BMP-4 on bone formation stimulated by these compounds and found that it was abrogated. These compounds increased BMP-2 but not BMP-4 or BMP-6 mRNA expression in osteoblastic cells, suggesting that BMP-2 was responsible for the observed bone formation that was inhibited by noggin. We show proteasome inhibitors regulate BMP-2 gene expression at least in part through inhibiting the proteolytic processing of Gli3 protein. Our results suggest that the ubiquitin-proteasome machinery regulates osteoblast differentiation and bone formation and that inhibition of specific components of this system may be useful therapeutically in common diseases of bone loss.
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Affiliation(s)
- I R Garrett
- OsteoScreen Inc, San Antonio, Texas 78229, USA.
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Choi KM, Lee J, Kim KB, Kim DR, Kim SK, Shin DH, Kim NH, Park IB, Choi DS, Baik SH. Factor analysis of the metabolic syndrome among elderly Koreans--the South-west Seoul Study. Diabet Med 2003; 20:99-104. [PMID: 12581260 DOI: 10.1046/j.1464-5491.2003.00890.x] [Citation(s) in RCA: 39] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
AIMS To examine the relationship between the components of the metabolic syndrome and to explore whether insulin resistance unifies the clustering of components of the metabolic syndrome among urban elderly Koreans using exploratory factor analysis. METHODS We included 1314 non-diabetic subjects over the age of 60 years, selected from a cross-sectional study, which was conducted in 1999 in Seoul, Korea. Factor analysis was carried out using the principle components analysis with Varimax orthogonal rotation of the components of the metabolic syndrome. RESULTS We found four major factors of cardiovascular disease risk variables in our study subjects. Impaired glucose tolerance, dyslipidaemia, hypertension and obesity aggregated as the major domain. Obesity and dyslipidaemia variables were closely related and loaded on the same factor. However, hypertension was not linked closely with other factors of the metabolic syndrome. CONCLUSIONS Insulin resistance is not the only contributor to the metabolic syndrome among urban elderly Koreans. Although the components of the metabolic syndrome were closely related, the finding of more than one factor suggests that more than one pathophysiological mechanism underlies full expression of the metabolic syndrome among elderly Koreans.
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Affiliation(s)
- K M Choi
- Department of Internal Medicine, College of Medicine, Korea University, Seoul, South Korea
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Lee EB, Cho SI, Chang HO, Chang MS, Kim KB, Lee SB, Choi WS. General pharmacological properties of YJA20379-8, a new H+/K(+)-ATPase inhibitor with anti-ulcer activities. Arzneimittelforschung 2001; 51:659-66. [PMID: 11556127 DOI: 10.1055/s-0031-1300097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
The general pharmacological properties of YJA20379-8 (3-butyryl-4-[(R)-1-methylbenzylamino]-8-ethoxy-1,7-naphthyridine, CAS 187654-40-6), a new H+/K(+)-ATPase inhibitor with anti-ulcer activities, were investigated in mice, rats and guinea pigs. YJA20379-8 at oral doses of 25, 50 and 100 mg/kg did not affect the locomotor activity, hexobarbital hypnosis and motor coordination in mice. The drug did not have analgesic action and anticonvulsant action at the doses of 100 mg/kg p.o. The respiration and blood pressure were not affected at 10 mg/kg i.v. in rats. YJA20379-8 at 2 x 10(-4) g/ml did neither produce any contraction nor relaxation of isolated organs, such as guinea pig ileum, rat fundus, rat uterus and guinea pig vas deferens, and the drug antagonized the contractile responses to several spasmogens, such as acetylcholine, histamine, serotonin, L-phenylephrine, oxytocin and BaCl2. The drug up to 100 mg/kg p.o. did not affect pupil size and the intestinal propulsion of mice. And it did not show an anticarrageenan action at 100 mg/kg. In this general pharmacology study, hypothermic effect in mice, retardation in gastric emptying in rats, decreases in urine excretion in rats at oral doses of 50 and 100 mg/kg of YJA20379-8 and the spasmolytic activity could be found. However, no other effects were exhibited at a high oral dose of 100 mg/kg in animals in this study.
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Kim MT, Kim KB, Juon HS, Hill MN. Prevalence and factors associated with high blood pressure in Korean Americans. Ethn Dis 2001; 10:364-74. [PMID: 11110353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/18/2023] Open
Abstract
This study, conducted from October 1998 to February 1999, included a cross-sectional epidemiological survey administered to Korean Americans (KAs) living in Maryland (N = 761). One third (32%) of participants had high blood pressure (HPB: SBP > or = 140 mm Hg and/or DBP > or = 90 mm Hg or were on hypertension medication). HBP was more common among males (35%) than females (30%) and those who were aged 50 years or older (53%) compared to those who were less than 50 years old (12%). The prevalence of HBP in Maryland KAs was found to be much higher than in other Americans (24%) and in their counterparts in Korea (22% overall: 29% in males, 11% in females). Only 40% of the hypertensive KAs were taking HBP medication, and 74% of those did not have controlled HBPs. Further, multivariate logistic analyses were conducted to estimate the relative biobehavioral risk factors related to hypertension. Several significant risk factors were identified, including family history of HBP, gender, level of education, level of acculturation, regular exercise, and being overweight. Findings from this study indicate that culturally relevant approaches to prevention and treatment of HBP are urgently needed to address the HBP problem in Korean Americans.
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Affiliation(s)
- M T Kim
- Johns Hopkins University School of Nursing, Baltimore, Maryland 21205-2110, USA.
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Abstract
BACKGROUND There is concern that a hypercoagulable status is caused after coronary artery bypass grafting without cardiopulmonary bypass (off-pump coronary artery bypass grafting, or OPCAB) and may potentially endanger the patency of the anastomosis. The aims of this study were: (1) to compare 1-year graft patency after OPCAB with that of conventional coronary artery bypass grafting (CABG) and that of on-pump beating CABG; and (2) to demonstrate any differences in patency of various conduits among the three groups. METHODS We analyzed the results of 122 consecutive OPCAB cases (group 1) compared with those of 65 consecutive conventional CABG cases (group II) and those of 19 consecutive on-pump beating CABG cases (group III). In group I, coronary angiography (CAG) was performed immediately postoperatively and 1 year after surgery. In groups II and III, CAG was performed 1 year after surgery. Graft patency was graded as grade A (excellent), grade B (fair), or grade O (occluded). RESULTS The average number of distal anastomoses in groups I, II, and III were 3.1 +/- 1.1, 3.7 +/- 0.9, and 3.6 +/- 0.9, respectively. In group I, postoperative CAG was performed in 92% of patients (112/122) before discharge. The patency rate (grade A + B) was 96.4% (162/168) for arterial grafts, and 85.6% (160/187) for saphenous vein grafts (SVG). One-year follow-up CAG was performed in 74% of patients (90/122). The patency rate was 97.8% (132/135) for arterial grafts and 67.9% (106/156) for SVG. In group II, 1-year follow-up CAG was performed in 65% of patients (42/65). The patency rate (grade A + B) was 93.5% (43/46) for arterial grafts and 88.3% (98/111) for SVG. In group III, 1-year follow-up CAG was performed in 89% of patients (17/19). The patency rate (grade A + B) was 100% (19/19) for arterial grafts and 86.8% (33/38) for SVG. CONCLUSIONS Our results demonstrate that the patency rate ot SVG after OPCAB was significantly lower than that of arterial grafts in the early postoperative CAG (p < 0.001), and was also significantly lower than those of SVG of group II (p < 0.001) and group III (p < 0.01) in the postoperative 1-year CAG, although there was no significant difference in 1-year patency of arterial grafts among the three groups. Our data suggest that a specific perioperative anticoagulant therapy may be advisable in patients undergoing OPCAB with SVG.
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Affiliation(s)
- K B Kim
- Department of Thoracic and Cardiovascular Surgery, Clinical Research Institute, Seoul National University Hospital, Korea.
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