Chronic kidney disease and cognitive function in older adults: findings from the chronic renal insufficiency cohort cognitive study.

Objectives: To investigate cognitive impairment in older, ethnically diverse individuals with a broad range of kidney function, to evaluate a spectrum of cognitive domains, and to determine whether the relationship between chronic kidney disease (CKD) and cognitive function is independent of demographic and clinical factors.

Design: Cross-sectional.

Setting: Chronic Renal Insufficiency Cohort Study.