title: [Cost-effectiveness of Helicobacter pylori screening to prevent gastric cancer: Markov decision analysis].
abstract: OBJECTIVE
  Using Markov model Monte Carlo simulation to conduct a cost-effectiveness analysis of screening Helicobacter pylori (H. pylori) infection to prevent gastric cancer.
  
  
  METHODS
  The Markov model was developed based on the natural course from H. pylori infection to gastric cancer. Two strategies were compared: (1) screening for H. pylori and treatment for those with positive tests, and (2) without screening and treatment. Data used for model simulation including transition probability, efficacy of test and treatment were collected from related research publications. Markov model Monte Carlo simulation combined with bootstrap method was used to perform base-case analysis and estimate the confidence interval of cost-effectiveness ratios. The probability sensitivity analysis was used to estimate the cost-effectiveness in multiple uncertainty factors.
  
  
  RESULTS
  Assuming H. pylori eradication will prevent 50% of attribute gastric cancer, the screening strategies would prevent 16.6% cases of gastric cancer. Cost-effectiveness were 10,405 Yuan (95% CI: 4,238 - 27,727 Yuan) per GC prevented, 64 Yuan (95% CI: 31 - 97 Yuan) per QALY saved and 1,374 Yuan (95% CI: 352 - 86,624 Yuan) per life year saved.
  
  
  CONCLUSIONS
  Screening and treatment for H. pylori infection in population was potentially effective in the prevention of gastric cancer, and screening in high incidence area of gastric cancer would be more effective and economic.
authors.affiliation: Center of Clinical Epidemiology, Huashan Hospital of Fu Dan University, Shanghai 200040, China.
authors.forename: Qian
authors.initials: Q
authors.lastname: Wang
authors.forename: Pi-huan
authors.initials: PH
authors.lastname: Jin
authors.forename: Guo-wei
authors.initials: GW
authors.lastname: Lin
authors.forename: San-rong
authors.initials: SR
authors.lastname: Xu
authors.forename: Jie
authors.initials: J
authors.lastname: Chen
mesh_terms: D003362:Cost-Benefit Analysis; D016481:Helicobacter Infections / Q000150:complications / Q000175:diagnosis*; D016480:Helicobacter pylori / Q000302:isolation & purification*; D006801:Humans; D008390:Markov Chains; D011336:Probability; D013274:Stomach Neoplasms / Q000517:prevention & control*