Central obesity is associated with helicobacter pylori infection: a large-scale cross-sectional retrospective study in West China

The aim is to study the effect of Helicobacter pylori infection on risk of developing gastroesophageal reflux disease. Materials and methods - cross-sectional observational study of 1007 patients with dyspepsia syndrome who underwent videoesophagogastroduodenoscopy with biopsy and histological examination of biopsy specimens of the gastric mucosa by OLGA-system. The age, gender, overweight, cigarette smoking, presence of Helicobacter pylori infection and gastritis stage were assessed. Results - the study showed a significant decrease in the incidence of gastroesophageal reflux disease in patients with positive H. Pylori status by 4% (RR 0,68; 95% CI, 0.49-0.94, p=0,041). The risk of developing gastroesophageal reflux disease significantly higher in overweight (RR 2,62; 95% CI 2,0-3,56; р<0,001) men (RR 1,76; 95% CI 1,33-2,32; р=0,0046) who smoked cigarettes (RR 3,23; 95% CI 2,45-4,24; р<0,001) and was not associated with the patient’s age and the stage of gastritis (р>0,05). Conclusion - a significant reduction in the frequency and risk of developing gastroesophageal reflux disease in patients with Helicobacter pylori infection is demonstrated.

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Peer Review #3 of "Investigation of Helicobacter pylori infection among symptomatic children in Hangzhou from 2007 to 2014: a retrospective study with 12,796 cases (v0.2)"

10.7287/peerj.2937v0.2/reviews/3 ◽

2017 ◽

Keyword(s):

Helicobacter Pylori ◽

Retrospective Study ◽

Peer Review ◽

Helicobacter Pylori Infection

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Seroprevalence of Helicobacter pylori infection among children of low socioeconomic level in São Paulo

Sao Paulo Medical Journal ◽

10.1590/s1516-31802010000400002 ◽

2010 ◽

Vol 128 (4) ◽

pp. 187-191 ◽

Cited By ~ 13

Author(s):

Aurea Cristina Portorreal Miranda ◽

Rodrigo Strehl Machado ◽

Edina Mariko Koga da Silva ◽

Elisabete Kawakami

Keyword(s):

Helicobacter Pylori ◽

Cross Sectional Study ◽

Sao Paulo ◽

Helicobacter Pylori Infection ◽

Socioeconomic Level ◽

São Paulo ◽

Sectional Study ◽

Cross Sectional ◽

Low Socioeconomic ◽

H Pylori

CONTEXT AND OBJECTIVE: Helicobacter pylori infection is mainly acquired during childhood, and is associated with significant morbidity in adults. The aim here was to evaluate the seroprevalence and risk factors of H. pylori infection among children of low socioeconomic level attended at a public hospital in São Paulo, Brazil. DESIGN AND SETTING: Cross-sectional study, among patients attended at an outpatient clinic. METHODS: 326 children were evaluated (150 boys and 176 girls; mean age 6.82 ± 4.07 years) in a cross-sectional study. Patients with chronic diseases or previous H. pylori treatment, and those whose participation was not permitted by the adult responsible for the child, were excluded. The adults answered a demographic questionnaire and blood samples were collected. The serological test used was Cobas Core II, a second-generation test. Titers > 5 U/ml were considered positive. RESULTS: H. pylori infection was diagnosed in 116 children (35.6%). Infected children were older than uninfected children (7.77 ± 4.08 years versus 5.59 ± 3.86 years; p < 0.0001). The seroprevalence increased from 20.8% among children aged two to four years, to 58.3% among those older than 12 years. There were no significant relationships between seropositivity and gender, color, breastfeeding, number of people in the home, number of rooms, bed sharing, living in a shantytown, maternal educational level, family income or nutritional status. In multivariate analysis, the only variable significantly associated with H. pylori seropositivity was age. CONCLUSION: Infection had intermediate prevalence in the study population, and age was associated with higher prevalence.

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