There is continuing interest in identifying Helicobacter pylori virulence factors that might predict the risk for symptomatic clinical outcomes. It has been proposed that iceA and cagA genes are such
Abbreviations: a, number of carriers with null genotype/total number; b, odds ratio; c, confidence interval; d, value for heterogeneity; OR, odds ratio; 95% CI, 95% confidence interval*0.01≤P
