Table 1.

Characteristics of AD patients and CNs.

Variables	AD (n = 55)	CN (n = 55)	P
Age (years), mean ± SD	67.8 ± 8.1	65.5 ± 7.0	0.106
Female, n (%)	30 (54.5)	28 (50.9)	0.849
Education (years), median (IQR)	6.0 (6.0–9.0)	12.0 (9.0–12.0)	<0.001
MMSE, median (IQR)	14.0 (5.5–18.5)	28.0 (27.0–29.0)	<0.001
FFQ, median (IQR)	4.0 (4.0–8.0)	8.0 (4.5–10.0)	<0.001

AD: Alzheimer disease; CN: Cognitively normal control; SD: Standard deviation; IQR: Interquartile range; MMSE: Mini-mental status examination; FFQ: Food frequency questionnaire.