Evaluation of a simple policy for pre- and post-prandial blood glucose self-monitoring in people with type 2 diabetes not on insulin☆

Abstract 

Background and aims

Since there is no agreement on regimens of self-monitoring of blood glucose (SMBG) in type 2 diabetes not on insulin, we evaluated the effects of a simple SMBG policy taking into account compliance.

Methods and results

273 type 2 diabetic patients not on insulin with HbA1c >7% attending our Diabetes Clinic and already using SMBG were randomized as follows: Group A, one BG profile/month with fasting and post-prandial values; Group B, one BG profile every 2 weeks with pre- and post-prandial values. Patients were followed-up by the same team every 3 months with the same education and treatment policies. At 3 and 6 months, SMBG profiles were evaluated and HbA1c measured. SMBG was carried out as recommended by 73% of Group A and 44% of Group B patients. In compliant patients, HbA1c and BG were unchanged in Group A whereas in Group B fasting, pre-prandial and two out of three post-prandial BG values were reduced and HbA1c decreased from 8.09±0.84% to 7.60±0.73% (p<0.001). The influence on BG control was similar for the two policies when compliance was not considered.

Conclusions

The more intensive SMBG policy considered is associated with improvements in glycaemic control in compliant subjects.

Keywords: Type 2 diabetes, Self-monitoring of blood glucose, Pre-prandial blood glucose, Post-prandial blood glucose, HbA1c