The CHW group also showed a reduction in HbA1c ( 7.8 vs. 7.3 % or 62 vs. 56 mmol/mol , P = 0.0004 ) post-6 month DSME ; however , it was attenuated at 18 months ( -0.3 % or -3.3 mmol/mol from baseline , within-group P = 0.234 ) .