Table 2. Participant characteristics.

Variables	MCI (n=18) M (SD)	AD (n=22) M (SD)	p*
Age	72.94 (5.15)	77.27 (5.38)	0.307
Years of education	11.56 (5.56)	7.27 (6.44)	0.060
Frequency of reading and writing habits	11.28 (6.30)	6.23 (5.09)	0.060
Socioeconomic status	31.28 (10.53)	28.05 (7.60)	0.526
Fazekas score	2.11 (1.18)	2.86 (1.61)	0.097
ARWMC score	1.11 (0.58)	1.50 (1.10)	0.081
Mini-Mental State Examination	25.44 (3.97)	21.23 (4.45)	0.060
Episodic verbal memory (RAVLT- A7)	4.94 (2.98)	1.14 (1.91)	0.004
Episodic visual memory (CERAD – praxis recall)	5.28 (3.30)	2.36 (3.24)	0.067
Visuospatial ability (CERAD – constructional praxis)	9.56 (1.62)	8.41 (2.04)	0.112
Clock drawing test	2.39 (1.57)	1.59 (1.53)	0.033
Digit span	10.94 (2.84)	9.00 (2.31)	0.399
Auditory comprehension	17.50 (1.42)	15.91 (2.09)	0.032
Naming test	28.17 (1.88)	26.23 (2.71)	0.032
Unconstrained verbal fluency	38.17 (16.60)	25.55 (14.82)	0.060
Phonological verbal fluency	15.89 (7.39)	10.67 (4.25)	0.079
Semantic verbal fluency	17.00 (5.03)	12.00 (4.17)	0.040
Semantic memory	4.56 (0.86)	4.45 (0.67)	0.678
Prospective memory	1.28 (0.38)	0.83 (0.74)	0.002
Sex – Female – n (%)	14 (77.8)	16 (72.7)	1.000

p≤0.05 indicates significance. RAVLT: Rey Auditory Verbal Learning Test, CERAD: Consortium to Establish a Registry for Alzheimer's Disease.