Association between the IL1B -31C > T polymorphism and Helicobacter pylori infection in Asian and Latin American population: A meta-analysis.

•Meta-analysis was conducted on association between IL1B −31C > T SNP and Hp infection.•Only studies in which serological methods were used to detect Hp were included.•IL1B −31C > T SNP increases Hp infection risk in Asian and Latin American population.