Figure 2

Scatterplot showing Pearson correlation between HbA1c levels and 5-HTT BP_ND obtained with [¹¹C]DASB and PET in the left hippocampus (lH) individuals with obesity (r = − 0.57, p = 0.006) and non-obesity (r = 0.056, p = 0.76). The difference of regression coefficients was statistically significant (p = 0.03).