Demographics and clinical data of ESRD patients and healthy controls.

Values are expressed as mean ± SD. MNE  =  minimal nephro-encephalopathy; Non-NE  =  non-nephro-encephalopathy; NCT-A  =  number connection test-A; DST  =  digital symbol test; LTT  =  line-tracing test; SDT  =  serial-dotting test.
aThe P value for gender distribution in the three groups was obtained by chi-square test.
bThe P value for age and neuropsychological tests difference among the three groups were obtained by one-way analysis of variance.
cThe P value for difference of serum creatinine and urea, disease and dialysis duration between the two groups was obtained by two-sample t test.