Summary of findings
T2DM
In this study, we investigated whether T2DM patients with a shared versus non-shared HbA1c target, achieved their glycemic goals. In this sample of T2DM patients with poor glycemic control GPs report a mean HbA1c goal of 7.46%. After two years we could not find statistical differences in the level of glycemic goal achievement between those with shared HbA1c goal setting versus those with non-shared goal setting. However, living with a partner had a positive impact on overall HbA1c goal achievement.We found significant differences in the measured HbA1c values between the groups shared vs. non-shared treatment goal. Patients with a shared HbA1c goal show slightly lower HbA1c at baseline and T4. Furthermore, it could be shown that a stricter HbA1c goal was defined when a goal has been shared. One explanation for this could be that patients involved in SDM have higher knowledge and risk assessment about T2DM [