Table 4:

Neurocognitive Performance in Patients with CKD, Control Subjects, and Subgroups of CKD with Presence and Absence of Positive Extrema CBF

Note.—Except where indicated, data are mean age-normalized z scores ± standard deviations. In general, patients with CKD showed poorer neurocognitive functions than did control subjects. Patients with CKD with presence of positive extrema in CBF measurements showed poorer neurocognitive functions than did those without positive extrema. CBF = cerebral blood flow, CKD = chronic kidney disease, CNB = computerized neurocognitive battery, TNB = traditional neurocognitive battery.

*Data are P values and were determined with the Wilcoxon rank sum test.