The Relationship between Helicobacter pylori Infection of the Gallbladder and Chronic Cholecystitis and Cholelithiasis: A Systematic Review and Meta-Analysis

Figure 3

Pooled ORs for the relationship between H. pylori infection of the gallbladder and chronic cholecystitis and cholelithiasis: (a) subgroup based on country; (b) subgroup based on sample; (c) subgroup based on specific primer. The areas of the squares are proportional to the study sample sizes.

(a)

(b)

(c)