Table 1.

Demographics, antioxidant exposure, MMSE scores, and apoE status of the study groups

Variable	Controls	MCI	AD
Subjects	30	21	15
Age in years (SEM)	69.20 (1.26)	81.14 (0.73)*	82.40 (0.70)*
Gender M/F (%)	13 (43.33) 17 (56.67)	10 (42.62) 11 (52.38)	10 (66.67) 5 (33.33)
Education in years (SEM)	15.03 (0.33)	11.00 (0.27)*	11.87 (0.48)*
MMSE score/30 (SEM)	29.03 (0.13)	27.53 (0.16)*	24.00 (0.40)*,**
Antioxidants (%)	3 (10.00)	7 (33.33)	5 (33.33)
APOE ɛ4 allele carrier (%)	–	5 (26.32)	3 (27.27)

Two tailed p-value for chi-square, Fisher’s exact and unpaired t statistics. MCI mild cognitive impairment, AD Alzheimer disease

*p < 0.0001 vs. control group

**p < 0.0001 vs. MCI group