Association between Helicbacter pylori infection and non-cardia and cardia gastric cancer2-150 data from 12 prospective studies
↵2-150 Excludes all cases known to have had a partial gastrectomy or where the cancer could not be localised to a particular part of the stomach.
2-151 Unpublished data.
2-152 In the Hawaiian study there were no case control pairs with aH pylori positive case and a negative control; in the Japanese study there were no H pylori negative cases.
2-153 Weighted by the number of cases in each study to allow for the different matching ratios of controls to cases.
OR, odds ratio; CI, confidence interval.