IL1B and chronic gastritis: IL-1B+3954 TT was associated with a high risk of gastritis and peptic ulcer [Odds Ratio (OR)]=2.63, 95% Confidence Interval (CI)= (1.47–4.70) (OR=3.40, CI=1.72–6.71) respectively and the IL-1B+3954 T allele was associated with chronic gastritis (OR=1.64, 95% CI=1.13–2.36).