We compared aspects of verbal memory and executive functioning in 51
community-dwelling persons with chronic kidney disease (CKD) and 55
healthy controls matched on age and education. Depressive symptoms were
assessed with the Centre for Epidemiological Studies-Depression Scale
(CES-D), and illness variables included glomerular filtration rate (GFR)
and hemoglobin. Findings indicate that persons with CKD exhibited poorer
performance on measures of memory (CVLT-II) and executive functioning
(DKEFS Trailmaking Test B and Color-Word Interference Tests) in comparison
with healthy controls. Furthermore, performance decrements were magnified
in older CKD participants on measures of verbal memory and inhibition.
Nearly half of CKD participants aged 61 and older exhibited significant
impairments in verbal memory and inhibition in comparison to matched
controls. Cognitive performance in CKD was not associated with measures of
illness severity. The differences observed were not accounted for by
depressive symptoms, which were only weakly associated with cognitive
performance, and negatively associated with age. Findings highlight the
need for further exploration of the etiologies and functional consequences
of the neuropsychological presentation of CKD. (JINS, 2007,
13, 344–353.)