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Gastroenterology
The diagnostic significance of hepatitis C virus antibody levels for chronic hepatitis C virus infection
Jin Gu Kang, Myoung Kuk Jang, Jung Hee Kim, Jang Han Jung, Ji Won Park, Sung Eun Kim, Sang Hoon Park, Myung Seok Lee, Ki Tae Suk, Dong Joon Kim, Hyoung Su Kim
Korean J Intern Med. 2023;38(3):362-371. Published online April 11, 2023
Background/Aims: Although anti-hepatitis C virus (HCV) assay is widely used to screen for HCV infection, it has a high false-positive (FP) rate in low-risk populations. We investigated the accuracy of anti-HCV signal-to-cutoff (S/CO) ratio to distinguish true-positive (TP) from FP HCV infection.
Me..
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Rheumatology
Incidence and prevalence of seropositive rheumatoid arthritis among Korean women of childbearing age: a nationwide population-based study
Min Kyung Chung, Chan Hee Lee, Jin Su Park, Hyun Sun Lim, Jisoo Lee
Korean J Intern Med. 2023;38(1):125-133. Published online May 19, 2022
Background/Aims: Women with rheumatoid arthritis (RA) are often diagnosed with the disease during their reproductive years; however, its incidence and prevalence among women of childbearing age have not been studied. The objective of this study was to estimate the incidence and prevalence of seropos..
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Gastroenterology
Prevalence and associated risk of advanced colorectal neoplasia in adults with sarcopenia
[letter]
Min Cheol Kim, Kyeong Ok Kim, Min Kyu Kang
Korean J Intern Med. 2022;37(2):294-303. Published online December 16, 2021
Background/Aims: Although several studies have shown that sarcopenia is associated with poor outcomes in colorectal cancer patients, the impact of sarcopenia on the development of colorectal neoplasia remains unclear. We aimed to evaluate the prevalence and association of colorectal neoplasia, espec..
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Rheumatology
Distribution of serum uric acid levels and prevalence of hyper- and hypouricemia in a Korean general population of 172,970
Bon San Koo, Hye-Jin Jeong, Chang-Nam Son, Sang-Hyon Kim, Hyun Jung Kim, Gheun-Ho Kim, Jae-Bum Jun
Korean J Intern Med. 2021;36(Suppl 1):S264-S272. Published online November 24, 2020
Background/Aims: We investigated the distribution of serum uric acid (SUA) levels and estimated the prevalence of hyperuricemia and hypouricemia in the Korean population.
Methods: This cross-sectional study used data from the Korean Genome and Epidemiology Study and included 172,970 participants (5..
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Pulmonology
Atrial fibrillation in critically ill patients who received prolonged mechanical ventilation: a nationwide inpatient report
Zhen Lin, Hedong Han, Wei Guo, Xin Wei, Zhijian Guo, Shujie Zhai, Shuai Li, Yiming Ruan, Fangyuan Hu, Dongdong Li, Jia He
Korean J Intern Med. 2021;36(6):1389-1401. Published online July 12, 2021
Background/Aims: To evaluate temporal trends of atrial fibrillation (AF) prevalence in critically ill patients who received prolonged mechanical ventilation (MV) in the United States.
Methods: We used the 2008 to 2014 National Inpatient Sample to compute the weighted prevalence of AF among hospital..
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Cardiology
Apparent treatment-resistant hypertension among ambulatory hypertensive patients: a cross-sectional study from 13 general hospitals
Sehun Kim, Jin Joo Park, Mi-Seung Shin, Choong Hwan Kwak, Bong-Ryeol Lee, Sung-Ji Park, Hae-Young Lee, Sang-Hyun Kim, Seok-Min Kang, Byung-Su Yoo, Joong-Wha Chung, Si Wan Choi, Sang-Ho Jo, Jinho Shin, Dong-Ju Choi
Korean J Intern Med. 2021;36(4):888-897. Published online June 7, 2021
Background/Aims: To examine the prevalence and clinical characteristics of apparent treatment-resistant hypertension among ambulatory hypertensive patients.
Methods: We enrolled adult ambulatory hypertensive patients at 13 well-qualified general hospitals in Korea from January to June 2012. Apparen..
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Clinical characteristics of spontaneous coronary artery dissection in young female patients with acute myocardial infarction in Korea
Yongcheol Kim, Xiongyi Han, Youngkeun Ahn, Min Chul Kim, Doo Sun Sim, Young Joon Hong, Ju Han Kim, Myung Ho Jeong
Korean J Intern Med. 2021;36(1):106-113. Published online July 18, 2019
Background/Aims: We aimed to evaluate the prevalence, characteristics, and clinical outcomes of spontaneous coronary artery dissection (SCAD) in young female patients with acute myocardial infarction (AMI).
Methods: We identified 8,250 patients diagnosed with AMI who underwent coronary angiogram fr..
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Nephrology
Trend of prevalence and incidence of systemic lupus erythematosus in South Korea, 2005 to 2015: a nationwide population-based study
Eun Hui Bae, Sang Yeob Lim, Kyung-Do Han, Jin-Hyung Jung, Hong Sang Choi, Ha Yeon Kim, Chang Seong Kim, Seong Kwon Ma, Soo Wan Kim
Korean J Intern Med. 2020;35(3):652-661. Published online June 21, 2019
Background/Aims: The aim of this study was to evaluate the trend of incidence and prevalence of systemic lupus erythematosus (SLE) in South Korea from 2005 to 2015.
Methods: From 2005 to 2015, individuals with SLE were identified from the National Health Insurance database, which records informatio..
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Allergy
Association between primary immunodeficiency and asthma exacerbation in adult asthmatics
So-Hee Lee, Ga-Young Ban, Su-Chin Kim, Chang-Gyu Chung, Hyun-Young Lee, Ji-Ho Lee, Hae-Sim Park
Korean J Intern Med. 2020;35(2):449-456. Published online June 14, 2019
Background/Aims: Primary immunodef iciency (PID) is a serious comorbid condition in adult asthmatics that have frequent exacerbations, which requires monthly replacement of intravenous immunoglobulin (IVIG). However, the prevalence and clinical significance of PID in adult asthmatics in Korea have n..
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Prevalence of anaphylaxis and prescription rates of epinephrine auto-injectors in urban and rural areas of Korea
Hyunseok Cho, Jae-Woo Kwon
Korean J Intern Med. 2019;34(3):643-650. Published online October 26, 2018
Background/Aims: Despite the clinical importance anaphylaxis and the recent increase in its occurrence, studies regarding the epidemiology of anaphylaxis, risk factors for anaphylaxis, and epinephrine auto-injector (EAI) prescription status for patients with anaphylaxis remain poorly described. Thus..
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Gastroenterology
Epidemiologic features of ınflammatory bowel disease in Western Blacksea region of Turkey for the last 10 years: retrospective cohort study
Güray Can, Emrah Poşul, Bülent Yılmaz, Hatice Can, Uğur Korkmaz, Fatih Ermiş, Mevlüt Kurt, Ülkü Dağlı
Korean J Intern Med. 2019;34(3):519-529. Published online April 27, 2018
Background/Aims: There are only a few epidemiological study about inflammatory bowel disease in the last 10 years in Turkey, especially in Western Blacksea region. In our study, we aimed to identify the changes in the incidence and the prevalence of inflammatory bowel disease in Western Blacksea reg..
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Allergy
Epidemiology of urticaria including physical urticaria and angioedema in Korea
Jeong-Hun Seo, Jae-Woo Kwon
Korean J Intern Med. 2019;34(2):418-425. Published online May 11, 2018
Background/Aims: Despite the high burden and frequency of urticaria, its epidemiology is not well known. We investigated the epidemiology of various type of urticaria in Korea and changes in its annual prevalence over 5 years.
Methods: We used data from the 2010 to 2014 Health Insurance Review and ..
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Endocrinology-metabolism
Prevalence of thyroid nodules and their associated clinical parameters: a large-scale, multicenter-based health checkup study
Jae Hoon Moon, Min Kyung Hyun, Ja Youn Lee, Jung Im Shim, Tae Hyuk Kim, Hoon Sung Choi, Hwa Young Ahn, Kyung Won Kim, Do Joon Park, Young Joo Park, Ka Hee Yi
Korean J Intern Med. 2018;33(4):753-762. Published online July 7, 2017
Background/Aims: We evaluated the prevalence and characteristics of thyroid nodules detected by thyroid ultrasound (US) at health checkups and the associated clinical parameters.
Methods: A total of 72,319 subjects who underwent thyroid US at three health checkup centers in Korea from January 2004 ..
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Pulmonology
Prevalence and risk factors for reduced pulmonary function in diabetic patients: The Korea National Health and Nutrition Examination Survey
Hee Yeon Kim, Tae Seo Sohn, Hannah Seok, Chang Dong Yeo, Young Soo Kim, Jae Yen Song, Young Bok Lee, Dong-Hee Lee, Jae-Im Lee, Tae-Kyu Lee, Seong Cheol Jeong, Mihee Hong, Hiun Suk Chae
Korean J Intern Med. 2017;32(4):682-689. Published online February 1, 2017
Background/Aims: An association between reduced pulmonary function and diabetes has been observed. Our aim was to evaluate the prevalence and risk factors associated with reduced pulmonary function in diabetic patients.
Methods: We analyzed data from the Korea National Health and Nutrition Examinati..
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Prevalence and risk factors for reflux esophagitis in patients with chronic obstructive pulmonary disease
Seo Woo Kim, Jin Hwa Lee, Yun Su Sim, Yon Ju Ryu, Jung Hyun Chang
Korean J Intern Med. 2014;29(4):466-473. Published online June 27, 2014
Background/Aims: Gastroesophageal reflux disease is one of the most common causes of chronic cough and is a potential risk factor for the exacerbation of chronic obstructive pulmonary disease (COPD). The aim of this study was to investigate the prevalence and risk factors for reflux esophagitis (RE)..
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Gastroenterology
Recent trends in hepatitis B virus infection in the general Korean population
Hyuck Kim, A Ri Shin, Hoe Hoon Chung, Min Kyoung Kim, Ji Sung Lee, Jae-Jun Shim, Byung-Ho Kim
Korean J Intern Med. 2013;28(4):413-419. Published online July 1, 2013
Background/AimsHepatitis B virus (HBV) is the major cause of chronic liver disease in Korea, but viral prevalence has decreased because of hepatitis B vaccination programs. In this study, we investigated longitudinal changes in HBV in fection in the general Korean population.<..
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Endocrinology-metabolism
Gender disparity in the secular trends for obesity prevalence in Korea: analyses based on the KNHANES 1998-2009
Sang Youl Rhee, Seok Won Park, Dae Jung Kim, Jeongtaek Woo
Korean J Intern Med. 2013;28(1):29-34. Published online December 28, 2012
Background/AimsA similar gender-associated trend in obesity is observed worldwide. Nevertheless, systematic analyses of gender-specific characteristics in the general Korean population are rare. MethodsWe analyzed the prevalence of obesity in Ko..
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Causes of Different Estimates of the Prevalence of Metabolic Syndrome in Korea
Hyeon Chang Kim, Dae Jung Kim
Korean J Intern Med. 2011;26(4):440-448. Published online November 28, 2011
Background/AimsReports of the prevalence of and trends in metabolic syndrome in Korea have been inconsistent. Thus, we investigated the reasons underlying these inconsistencies. MethodsWe estimated the prevalence of metabolic syndrome using diff..
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The Prevalence of Gastrointestinal Symptoms in Patients with Non-Insulin Dependent Diabetes Mellitus
Jung-Hwan Oh, Myung-Gyu Choi, Moo-Il Kang, Kang-Moon Lee, Jin Il Kim, Byung-Wook Kim, Dong-Soo Lee, Sung-Soo Kim, Hwang Choi, Sok-Won Han, Kyu-Yong Choi, Ho-Young Son, In-Sik Chung
Korean J Intern Med. 2009;24(4):309-317. Published online November 27, 2009
Background/AimsGastrointestinal (GI) symptoms are common among patients with non-insulin dependent diabetes mellitus (NIDDM). Our aim was to investigate the frequency of chronic GI symptoms in Korean patients with NIDDM. MethodsA cross-sectiona..
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Prevalence and Clinical Characteristics of the Metabolic Syndrome in Middle-Aged Korean Adults
Hyuk Sang Kwon, Yong Moon Park, Hye Jung Lee, Jin Hee Lee, Yoon Hee Choi, Seung Hyun Ko, Jung Min Lee, Sung Rae Kim, So Young Kang, Won Chul Lee, Myung Sook Ahn, Jae Hong Noh, Jin Mo Kang, Dong Suk Kim, Kun Ho Yoon, Bong Yun Cha, Kwang Woo Lee, Sung Koo Kang, Ho Young Son
Korean J Intern Med. 2005;20(4):310-316. Published online December 31, 2005
BackgroundThe aim of this study was to analyze the prevalence and clinical characteristic of the metabolic syndrome of adults, over 40 years old, living in Korea. MethodsThis study was carried out for 2 years, 2003-2004, on total 5,330 individua..
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