Concomitant and standard eradication rates were 78.7 % ( 137/174 ) vs. 70.7 % ( 123/174 ) by intention-to-treat ( p = 0.084 ) and 88.7 % ( 133/150 ) vs. 78.4 % ( 120/153 ) by per-protocol ( p = 0.016 ) , respectively .