Fasting and 2-h plasma glucose concentrations fell significantly { 0.9 mmol/L [ 0.5-1 .7 mmol/L ( 16.2 mg/dL ) , P = 0.003 ] and 2.9 mmol/L [ 0.5-6 .4 mmol/L ( 52.3 mg/dL ) , P = 0.004 ] , respectively } , as did also home measurements of plasma glucose .