Table 1.

Demographic characteristics and cognitive test scores in 247 low-level education individuals from Lima-Peru, according to definitive diagnosis.

	Study group
	Early Alzheimer’s dementia (n = 81)	amnestic mild cognitive impairment (n = 45)	Control (n = 121)	p-value 1† (early AD vs. aMCI)	p-value 2‡ (aMCI vs. control)
Sex: female	52 (64.20%)	30 (66.67%)	68 (56.20%)	0.781	0.223
Age, years§	74.18 (3.81)	71.09 (4.20)	69.53 (4.11)	0.000**	0.032*
Education, years§	2.65 (1.28)	2.53 (1.46)	2.57 (1.45)	0.629	0.885
MMSE, score§	18.32 (2.78)	21.36 (0.98)	22.02 (1.26)	0.000**	0.056
CDT, score§	2.42 (1.69)	8.02 (1.06)	8.75 (0.91)	0.000**	0.000**
M@T, score§	17.54 (4.67)	30.53 (2.54)	41.97 (2.68)	0.000**	0.000**

AD, Alzheimer’s dementia; aMCI, amnestic mild cognitive impairment; MMSE, Mini Mental State of Examination; CDT, Clock Drawing Test—Mano’s version; M@T, Memory Alteration Test; ^§Data showed as mean (standard deviation); ^†p-value for comparation between early AD and aMCI; ^‡p-value for comparation between aMCI and control; *p-value < 0.05; **p-value < 0.001.