Ref (type)	Population	Outcome, Interventions	Results and statistical analysis	Effect size	Favours
Ulcer healing
Systematic review	207 people 2 RCTs in this analysis	Healing 76% with eradication treatment 42% with no treatment	RR for persistence 0.37 95% CI 0.26 to 0.53 NNT 3 95% CI 2 to 4	Moderate effect size	eradication treatment