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Prevalence of Helicobacter pylori infection and associated factors among adults in Southern Brazil: a population-based cross-sectional study.

Publication ,  Journal Article
Santos, IS; Boccio, J; Santos, AS; Valle, NCJ; Halal, CS; Bachilli, MC; Lopes, RD
Published in: BMC Public Health
November 10, 2005

BACKGROUND: Helicobacter pylori (Hp) infection is associated with several upper gastrointestinal disorders. Local data on the epidemiology of the infection are scarce in Brazil. The purpose of this study is to measure the prevalence rate and to explore the associated factors among the adult population living in Pelotas, a southern Brazilian city. METHODS: This was a population-based cross-sectional study. Through a multi-stage sampling method all individuals 20 years and over living at the selected households at the urban area of the city were interviewed regarding past and current socio-economic indicators; demographic characteristics; nutritional and behavioural habits; and history of upper gastrointestinal symptoms.Hp infection was ascertained through the 13C-UBT. Due to the high prevalence, data were analysed through robust Poisson regression. All analyses took into account the family clustering of the data. RESULTS: Among 563 eligible individuals, 363 agreed to perform the 13C-UBT (refusal rate of 35.5%). Refusals were associated with female sex, consumption of mate drinking, and presence of upper gastrointestinal symptoms. The prevalence rate of H. pylori infection was 63.4% (95%CI 59.3%-69.3%). In crude analyses, prevalence was associated with increasing age, non-white skin colour, lower current family income, lower education level, higher size of the family, low socio-economic conditions in childhood, higher number of siblings and attendance to day-care centres in childhood, and presence of dyspeptic symptoms. In adjusted analysis the level of education of the father was inversely associated with the infection, whereas number of siblings and attendance to day-care centre in childhood were directly associated with it. Non-white skin colour remained significantly associated with increased prevalence even after allowing for past and current socio-economic characteristics, age and sex. Compared to non-symptomatic individuals, those reporting dyspeptic symptoms presented a higher prevalence of the infection even after allowing for current and past socio-economic conditions, ethnicity, age, and sex. CONCLUSION: Hp infection is as common among adults in southern Brazil as it is in other developing countries. Socio-economic conditions in childhood besides ethnicity and presence of dyspeptic symptoms were the factors significantly associated with the infection.

Duke Scholars

Published In

BMC Public Health

DOI

EISSN

1471-2458

Publication Date

November 10, 2005

Volume

5

Start / End Page

118

Location

England

Related Subject Headings

  • Urban Health
  • Socioeconomic Factors
  • Public Health
  • Prevalence
  • Poisson Distribution
  • Middle Aged
  • Male
  • Humans
  • Helicobacter pylori
  • Helicobacter Infections
 

Citation

APA
Chicago
ICMJE
MLA
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Santos, I. S., Boccio, J., Santos, A. S., Valle, N. C. J., Halal, C. S., Bachilli, M. C., & Lopes, R. D. (2005). Prevalence of Helicobacter pylori infection and associated factors among adults in Southern Brazil: a population-based cross-sectional study. BMC Public Health, 5, 118. https://doi.org/10.1186/1471-2458-5-118
Santos, Ina S., Jose Boccio, Ari S. Santos, Neiva C. J. Valle, Camila S. Halal, Marta Colvara Bachilli, and Ricardo D. Lopes. “Prevalence of Helicobacter pylori infection and associated factors among adults in Southern Brazil: a population-based cross-sectional study.BMC Public Health 5 (November 10, 2005): 118. https://doi.org/10.1186/1471-2458-5-118.
Santos IS, Boccio J, Santos AS, Valle NCJ, Halal CS, Bachilli MC, et al. Prevalence of Helicobacter pylori infection and associated factors among adults in Southern Brazil: a population-based cross-sectional study. BMC Public Health. 2005 Nov 10;5:118.
Santos, Ina S., et al. “Prevalence of Helicobacter pylori infection and associated factors among adults in Southern Brazil: a population-based cross-sectional study.BMC Public Health, vol. 5, Nov. 2005, p. 118. Pubmed, doi:10.1186/1471-2458-5-118.
Santos IS, Boccio J, Santos AS, Valle NCJ, Halal CS, Bachilli MC, Lopes RD. Prevalence of Helicobacter pylori infection and associated factors among adults in Southern Brazil: a population-based cross-sectional study. BMC Public Health. 2005 Nov 10;5:118.
Journal cover image

Published In

BMC Public Health

DOI

EISSN

1471-2458

Publication Date

November 10, 2005

Volume

5

Start / End Page

118

Location

England

Related Subject Headings

  • Urban Health
  • Socioeconomic Factors
  • Public Health
  • Prevalence
  • Poisson Distribution
  • Middle Aged
  • Male
  • Humans
  • Helicobacter pylori
  • Helicobacter Infections