Relationship Between Diabetes Knowledge, Glycemic Control, and Associated Health Conditions

The purpose of this study was to identify any existing relationship between diabetes knowledge and glycemic control, as well as possible associations with patient health, among patients with type 2 diabetes.

This qualitative study used a validated multiple-choice test (the Michigan Diabetes Knowledge Test) to assess diabetes knowledge among 17 hospital patients between the ages of 18 and 75 years with type 2 diabetes and a recent (within 3 months) A1C laboratory value. Participants also provided information about their diabetes self-care habits, previous diabetes education, and diabetes-related secondary health conditions.

The average diabetes knowledge score was 8.4 of 14 (60%), and the average A1C was 9.3%. Thirteen participants had previously received diabetes education, whereas four participants had never received diabetes education. The participants who had not received education scored 15.3% lower on the diabetes knowledge test and had an average A1C 0.89% higher than those who had received previous education. Although this difference was not statistically significant, it is clinically relevant. There was a significant association between diabetes knowledge and presence of retinopathy (P = 0.03).

Diabetes self-management education and support is a crucial component of diabetes care. There is a considerable need for diabetes education strategies to improve self-management of diabetes and thereby improve outcomes and decrease the costs of diabetes-related care. There is also a need for efforts to ensure regular vision screenings for individuals with type 2 diabetes.