Global Prevalence of Helicobacter pylori Infection: Systematic Review and Meta-Analysis.
Gastroenterology
; 153(2): 420-429, 2017 08.
Article
em En
| MEDLINE
| ID: mdl-28456631
ABSTRACT
BACKGROUND & AIMS:
The epidemiology of Helicobacter pylori infection has changed with improvements in sanitation and methods of eradication. We performed a systematic review and meta-analysis to evaluate changes in the global prevalence of H pylori infection.METHODS:
We performed a systematic search of the MEDLINE and EMBASE databases for studies of the prevalence of H pylori infection published from January 1, 1970 through January 1, 2016. We analyzed data based on United Nations geoscheme regions and individual countries. We used a random effects model to calculate pooled prevalence estimates with 95% confidence intervals (CIs), weighted by study size. We extrapolated 2015 prevalence estimates to obtain the estimated number of individuals with H pylori infection.RESULTS:
Among 14,006 reports screened, we identified 263 full-text articles on the prevalence of H pylori infection; 184 were included in the final analysis, comprising data from 62 countries. Africa had the highest pooled prevalence of H pylori infection (70.1%; 95% CI, 62.6-77.7), whereas Oceania had the lowest prevalence (24.4%; 95% CI, 18.5-30.4). Among individual countries, the prevalence of H pylori infection varied from as low as 18.9% in Switzerland (95% CI, 13.1-24.7) to 87.7% in Nigeria (95% CI, 83.1-92.2). Based on regional prevalence estimates, there were approximately 4.4 billion individuals with H pylori infection worldwide in 2015.CONCLUSIONS:
In a systematic review and meta-analysis to assess the prevalence of H pylori infection worldwide, we observed large amounts of variation among regions-more than half the world's population is infected. These data can be used in development of customized strategies for the global eradication.Palavras-chave
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Saúde Global
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Helicobacter pylori
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Infecções por Helicobacter
Tipo de estudo:
Prevalence_studies
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Risk_factors_studies
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Systematic_reviews
Limite:
Humans
País como assunto:
Africa
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Asia
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Europa
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Oceania
Idioma:
En
Ano de publicação:
2017
Tipo de documento:
Article