Furthermore, CSF VE‐Cadherin levels are associated with worse scores on individual cognitive tests of executive function (Digit–Symbol), language (Animal Fluency), and episodic memory (FCSRT‐Free) among preclinical AD patients, even after adjusting for the effects of potential confounders such as age, sex, education, APOE ε4, and white matter injury.139. Here, APOE is linked to Alzheimer disease.