In a randomised , prospective , open 22 factorial design , the once-weekly performance of four-point glucose profiles ( SMBG + ; n = 151 patients ) was compared with no SMBG ( SMBG - ; n = 149 ) , and the measuring and transmitting of HbA1c results to the study centres ( HbA ( 1c ) + ; n = 158 , of these 82 SMBG - and 76 SMBG + ) was compared with HbA1c measurement without disclosure of results ( HbA ( 1c ) - ; n = 142 , of these 67 SMBG - and 75 SMBG + ) .