INS and type 2 diabetes mellitus: The MoCA score, Hb1Ac level, low education, insulin use, and medication adjustment ratio were related to the risk of non-adherence in T2DM patients with MCI in the univariate analysis (p < 0.05 for each) (Table 4), while multivariate analysis confirmed that the MoCA score (OR: 0.73, 95% CI: 0.62–0.87, p < 0.001) and medication adjustment ratio were independently associated with medication adherence after adjusting for age, sex, education, insulin use, and Hb1Ac level.