1. Relationship Between Helicobacter pylori Infection and Esophageal Neoplasia: A Meta- analysis 
Theodoros Rokkas, Dimitrios Pistiolas, Panos Sechopoulos, Ioannis Robotis, Georgios Margantinis 
Clinical Gastroenterology and Hepatology 
Volume 5, Issue 12, Pages e2 (December 2007)
DOI: /j.cgh
Copyright © 2007 AGA Institute Terms and Conditions

2. Figure 1 Flow diagram of the studies identified in this meta-analysis.
Clinical Gastroenterology and Hepatology 2007 5, e2DOI: ( /j.cgh )
Copyright © 2007 AGA Institute Terms and Conditions

3. Figure 2
Forest plot showing individual and pooled ORs (95% CIs) in studies (grouped by histology) comparing the H pylori prevalence in patients and controls.
Clinical Gastroenterology and Hepatology 2007 5, e2DOI: ( /j.cgh )
Copyright © 2007 AGA Institute Terms and Conditions

4. Figure 3
Funnel plot of selected studies examining H pylori prevalence in esophageal AC patients and controls. No evidence of publication bias (P = .37, by Begg and Mazumdar adjusted rank correlation test).
Clinical Gastroenterology and Hepatology 2007 5, e2DOI: ( /j.cgh )
Copyright © 2007 AGA Institute Terms and Conditions

5. Figure 4
Forest plot showing individual and pooled ORs (95% CIs) in studies (grouped by histology) comparing the H pylori cagA–positive strain prevalence in patients and controls.
Clinical Gastroenterology and Hepatology 2007 5, e2DOI: ( /j.cgh )
Copyright © 2007 AGA Institute Terms and Conditions

6. Figure 5
Funnel plot of selected studies examining the H pylori cagA–positive strain prevalence in esophageal AC patients and controls. No evidence of publication bias (P = .26, by Begg and Mazumdar adjusted rank correlation test).
Clinical Gastroenterology and Hepatology 2007 5, e2DOI: ( /j.cgh )
Copyright © 2007 AGA Institute Terms and Conditions