Figure 2. Correlation between plasma ghrelin levels and cognitive performances.

Partial correlation analysis demonstrated that ghrelin levels were positively associated with the scores of Montreal Cognitive Assessment (MoCA) (r = 0.196, p = 0.041) and Auditory Verbal Learning Test (AVLT) -delayed recall (r = 0.197, p = 0.040) in T2DM with MCI patients. Partial r and p values were obtained after adjustment for HbA1c, FBG and HOMA-IR.