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Gastroenterol Res Pract. 2014;2014:481365. doi: 10.1155/2014/481365. Epub 2014 Jan 14.

Risk Factors and Prevalence of Helicobacter pylori Infection in Persistent High Incidence Area of Gastric Carcinoma in Yangzhong City.

Author information

1
Department of Gastroenterology, People's Hospital of Yangzhong County, Yangzhong 212200, China.
2
Department of Gastroenterology, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China.
3
Department of Gastroenterology, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China ; Department of Gastroenterology, Shengze Hospital of Nanjing Medical University, Wujiang, Jiangsu, China.

Abstract

AIM:

The aim of this study was to investigate the prevalence and risk factors of H. pylori infection in areas with high prevalence of gastric cancer in Jiangsu Province, China.

METHODS:

A prospective epidemiologic survey of H. pylori infection was accomplished in a natural population of 5417 individuals in Yangzhong city. Questionnaires and 13C-urea breath test for H. pylori infection were performed.

RESULTS:

Among 5417 subjects who completed questionnaires and 13C-urea breath test, 3435 (63.41%) were H. pylori positive. The prevalence reached a peak at the age of 30-39 years (90.82%). There was significant difference between sexes and women had a higher infection rate than men. The prevalence of H. pylori infection was also associated with eating kipper food and fried food. No association between H. pylori prevalence and smoking or drinking was found. Compared to healthy individuals, people with dyspeptic diseases (peptic ulcer, gastroenteritis) presented a high prevalence of H. pylori infection. Using multivariate logistic regression analysis, age and history of peptic ulcer and gastroenteritis were the independent predictors for H. pylori infection.

CONCLUSIONS:

Yangzhong city had a high prevalence of H. pylori infection and was related to several risk factors. The underlying mechanisms are needed to be further investigated.

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