Ref (type)	Population	Outcome, Interventions	Results and statistical analysis	Effect size	Favours
Adverse effects
Systematic review	People positive for H pylori infection and who were otherwise healthy and asymptomatic Data from 1 RCT	Adverse effects with H pylori eradication treatment with control (placebo or no treatment) Absolute results not reported	Reported as not statistically significant P value not reported		Not significant
Systematic review	People positive for H pylori infection and who were otherwise healthy and asymptomatic Data from 1 RCT	Skin rash 3.1% with H pylori eradication treatment 0.1% with control (placebo or no treatment) Absolute numbers not reported	Reported as significant P value not reported	Effect size not calculated	control (placebo or no treatment)