Characteristics of the study population.

Abbreviations: RFFT, Ruff Figural Fluency Test; VAT, Visual Association Test; SD, standard deviation; IQR, interquartile range; N/A, not applicable. ap-values refer to comparisons between persons with and without diabetes. bPrevalence of type 2 diabetes in total study population was 6% (N = 264). cIncluding ε2/ε4, ε3/ε4 and ε4/ε4. APOE ε4 carriership was unknown for 280 persons of the total study population (7%): with diabetes, 18 (7%) and without diabetes, 262 (7%). dVAT score was unknown for 82 persons of the total study population (2%): with diabetes, 4 (2%) and without diabetes, 78 (2%).