Fig. 2From: Processing speed is affected by early impairment in kidney function in the general elder populationFlow chart of the study sample. The following exclusion criteria were applied both at baseline and at the 6 year follow up: Missing data from CPRS, education, CDR, smoking, and hypertension, as well as missing blood samples, depression, and non-participation in cognitive tests. The exclusion criteria MCI and dementia were applied only at baseline. Abbreviations: CDR = Clinical dementia rating, CPRS = Comprehensive psychopathological rating scale, eGFR = estimated glomerular filtration rate, MCI = Mild cognitive impairmentBack to article page