Table 1 Results of recent large studies with proton‐pump inhibitors, clarithromycin and amoxicillin triple therapy in Europe and the US.

First author	Total patients (n)	Duration (days)	ITT (95% CI)
Della et al9	812	7	72% (69% to 75%)
Bochenek et al10	177	7	65% (56% to 73%)
Boixeda et al11	890	7	77% (74% to 80%)
Calvet et al8	237	7	76% (73% to 80%)
Calvet et al8	210	10	79% (74% to 85%)
De Francesco et al10	115	7	71% (63% to 79%)
De Francesco et al12	116	10	80% (72% to 87%)
Fennerty et al13	123	10	81% (73% to 87%)
Fennerty et al13	126	14	82% (73% to 88%)
Laine et al14	233	10	77% (71% to 82%)
Scaccianoce et al15	70	7	75% (66% to 86%)
Scaccianoce et al15	71	10	81% (73% to 91%)
Vakil et al16	194	7	77% (71% to 83%)
Vakil et al16	196	10	78% (72% to 84%)
Vakil et al16	206	10	73% (67% to 79%)
Zagari* et al	301	7	79% (74% to 83%)
Zagari* et al	301	14	81% (77% to 85%)
Zullo17	527	7	74% (70% to 77%)
Zullo17	87	7	80% (72% to 88%)

*ITT Current study being discussed.