The intention-to-treat eradication rates were @ % ( @ % confidence interval ( CI ) = @-@ % , @/@ ) in the antimicrobial susceptibility-guided group and @ % ( @ % CI = @-@ @ % , @/@ ) in the clarithromycin-based triple therapy group after the initial treatment ( P = @ ) , whereas the per-protocol ( PP ) eradication rates were @ % ( @ % CI = @-@ % , @/@ ) in the antimicrobial susceptibility-guided group and @ % ( @ % CI = @-@ @ % , @/@ ) in the clarithromycin-based triple therapy group ( P = @ ) .