Cost effectiveness analysis of population-based serology screening and 13C-Urea breath test for Helicobacter pylori to prevent gastric cancer: A markov model

Figure 1 Markov model schematic. H pylori eradicated referred to the state of persons with positive screening test and the infection was successfully eradicated by the triple therapy.

Figure 2 A: Sensitivity analysis on excess gastric cancer risk reduction attributable to H pylori eradication; B: Sensitivity analysis on age at time of screening; C: Sensitivity analysis on relative risk of gastric cancer in H pylori infected people with 30% gastric cancer risk reduction attributable to eradication; D: Sensitivity analysis on annual cost of gastric cancer treatment.

Figure 3 Sensitivity analysis on annual discount rate.