The characteristics of included RCTs.

BackgroundCurrently, quadruple therapy is unanimously recommended as the current first-line treatment option for Helicobacter pylori (H. Pylori) eradication. However, the drug composition of quadruple therapy is very complex, and the efficacy and safety between them is not clear.AimsTo compare the efficacy and safety of H. Pylori eradication regimens, which were recommended by the Fifth Consensus of China, by network meta-analysis.MethodsLiterature databases were used to retrieve clinical randomized controlled trials of H. Pylori eradication. Network meta-analysis was performed using BUGSnet and meta package of R software, using OR values as effect size, and SUCRA was used to rank the efficacy of interventions under each outcome.ResultsA total of 55 studies and 130 arms were included. The NMA analysis found that the top regimen in term of eradication rate outcome was: Rabeprazole + Bismuth + Furazolidone + Tetracycline (SUCRA, 97.5). In terms of safety outcomes: Lansoprazole + Bismuth + Amoxycillin + Clarithromycin (SUCRA, 91.97).ConclusionsThe bismuth quadruple therapies recommended by the guidelines for the treatment of H. Pylori have good performance in terms of four-week eradication rate and safety outcome indicators, and due to the different resistance of antibiotics in different regional populations, rational use of drugs should be combined with local conditions.