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. Author manuscript; available in PMC: 2017 Apr 1.
Published in final edited form as: Gut. 2015 Mar 16;65(4):563–574. doi: 10.1136/gutjnl-2014-308588

Figure 2. Relative reduction in lifetime intestinal-type NCGA risk among the overall cohort and smoking subgroups.

Figure 2

Serum pepsinogen screening was associated with the greatest relative reduction in lifetime intestinal-type NCGA risk compared to no screening. The reduction associated with H. pylori screening was the smallest (<0.2%). Results were similar for the overall cohort (black bars) and smoking subgroups, including never smokers (white bars), current smokers (dark grey bars) and former smokers (light grey bars). Error bars depict the range among the subset of 50 randomly selected good-fitting natural history parameter sets. A positive serum pepsinogen screen was defined as: pepsinogen I levels ≤70μg/l and pepsinogen I/II ratio ≤ 3.0. H. pylori = Helicobacter pylori.