Fig. 3. The mean adherence levels and 95% confidence intervals for each recommendation (the 6 components of the KDA-KMHW index), ranging from 0 (non-adherence) to 1 (perfect adherence), for diagnosed (DD, solid lines) and undiagnosed T2DM patients (UD, dashed lines) during the survey years of 1998-2012.

Multivariate general linear models were used to test for differences in adherence to each recommendation between UD and DD for all survey years, and no significant differences were observed (P > 0.05). Values are adjusted for age, sex, body mass index, education, household income, and smoking status. T2DM, type 2 diabetes mellitus; KDA-KMHW, Korean Diabetes Association-Korean Ministry of Health and Welfare