The correlation between the ReHo values and NCT-A/DST scores, as well as serum urea levels in the combined MNE and non-NE groups (P<0.05, AlphaSim corrected).

<p>The NCT-A has a negative correlation with the ReHo values in the bilateral frontal and parietal lobes, including medial frontal cortex (MFC), superior frontal cortex (SFC), precentral gyrus and postcentral gyrus. The DST scores positively correlate with ReHo values in the bilateral PCC/precuneus, medial frontal cortex (MFC) and inferior parietal lobe (IPL). Serum urea levels negatively correlated with the ReHo values in the right inferior frontal gyrus (IFG), precuneus, MFC, precentral gyrus and postcentral gyrus. NCT-A = number connection test type A; DST = digital symbol test; ReHo = regional homogeneity.