In completers , HbA ( 1c ) was reduced in the SMBG + group from 7.3 % to 7.0 % , i.e. by 0.3 % ( 0.1 % , 0.5 % ) vs SMBG - from 7.3 % to 7.0 % and 0.3 % ( 0.2 % , 0.5 % ) , respectively , the difference being 0.0 % ( -0.2 % , 0.2 % ) ( p = 0.93 ) .