Prevalence and risk factors of Helicobacter pylori infection in Korea: Nationwide multicenter study over 13 years

BMC Gastroenterology

Research Article

Jin-Won Kwon¹  Hyun Chae Jung²  Young-Eun Joo³  Gwang Ho Baik⁴  Gwang Ha Kim⁵  Heung Up Kim⁶  Nayoung Kim⁷  Geom Seog Seo⁸  Jeong Eun Shin⁹  Seon Hee Lim^1,10  Jeong Yoon Yim^1,10  Jung Mook Kang^1,10  Min Jung Park^1,10  Joo Sung Kim^1,11 

[1] College of Pharmacy, Kyungpook National University, Daegu, Korea;Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea;Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Korea;Department of Internal Medicine, Hallym University College of Medicine, Chuncheon, Korea;Department of Internal Medicine, Pusan National University School of Medicine, Busan, Korea;Department of Internal Medicine, School of Medicine, Jeju National University, Jeju, Korea;Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea;Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea;Department of Internal Medicine, Wonkwang University Hospital, Iksan, Korea;Department of Internal medicine, Dankook University College of Medicine, Chonan, Korea;Seoul National University Hospital, Healthcare System Gangnam Center, Healthcare Research Institute, Seoul, Korea;Seoul National University Hospital, Healthcare System Gangnam Center, Healthcare Research Institute, Seoul, Korea;Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea;

关键词: Helicobacter pylori;    Seroprevalence;    Epidemiology;    Cohort;   

DOI  :  10.1186/1471-230X-13-104

 received in 2013-01-14, accepted in 2013-06-21,  发布年份 2013

来源: Springer

【 摘 要 】

BackgroundThe aim of this study was to evaluate the time trend of seropositivity of Helicobacter pylori (H. pylori) over the period of 13 years in an asymptomatic Korean population, and investigate associated risk factors.MethodsThis cross-sectional nationwide multicentre study surveyed anti-H. pylori IgG antibodies in 19,272 health check-up subjects (aged [greater than and equal to]16 years) in 2011. Risk factors for H. pylori infection were investigated using logistic regression. Seropositivity in asymptomatic subjects without H. pylori eradication was compared between the years 1998 and 2005. Birth cohort effects were also evaluated.ResultsAfter exclusion of subjects with a history of H. pylori eradication therapy (n = 3,712, 19.3%) and gastric symptoms (n = 4,764, 24.7%), the seroprevalence of H. pylori infection was 54.4% in 10,796 subjects. This was significantly lower than the seroprevalence of 59.6% in 2005 and that of 66.9% in 1998, and this decrease of seropositivity of H. pylori became widespread across all ages and in most areas of the country. This decreasing trend could be explained by cohort analysis. All younger birth cohorts had a lower seroprevalence of H. pylori than older birth cohorts at the same age. Decreased seroprevalence within the same birth cohorts also accounted for this phenomenon. Clinical risk factors of H. pylori infection were higher cholesterol level ([greater than and equal to] 240 mg/dl) (OR = 1.33; 95% CI = 1.14-1.54), male gender, older age, low income, and residence in a rural area.ConclusionsA decreasing trend of H. pylori seroprevalence due to a birth cohort effect requires further studies on its related human host factors as well as socio-economic and hygienic factors. In addition, the relationship between H. pylori infection and high cholesterol level needs more investigation regarding underlying pathogenesis.

【 授权许可】

Unknown   
© Lim et al.; licensee BioMed Central Ltd. 2013. This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.