Table 1.

Characteristics of the SCD and MCI groups

Characteristic	SCD	MCI	p
N	208	258
Age mean, y	70.0 (5.7)	71.0 (5.4)	0.061
Female sex, N (%)	109 (52.4)	104 (40.3)	0.009
Education, y	12.5 (3.5)	11.1 (3.2)	0.001
Stroke, n (%))	26 (12.5%)	38 (14.7%)	0.487
Hypertension, n (%)	62 (29.8%)	84 (32.6%)	0.525
Diabetes (n (%))	17 (8.2%)	26 (10.1%)	0.522
Ischemic heart disease (n (%))	19 (9.1%)	45 (17.5%)	0.010
Atrial fibrillation (n (%))	14 (6.7%)	15 (5.8%)	0.704
Congestive heart failure (n (%))	3 (1.4%)	3 (1.2%)	1.000
Hyperlipemia (n (%))	25 (12.5%)	21 (8.2%)	0.211
APOE ɛ4 carrier (n (%))	78 (37.5%)	131 (50.8%)	0.002
MMSE, points	28.5 (1.4)	27.0 (1.8)	<0.001
AQT	74.1 (20.4)	88.8 (31.3)	<0.001
CDT	4.5 (0.9)	4.0 (1.1)	<0.001
MCI subtype
Amnestic MCI single domain	N/A	107 (41.5%)
Amnestic MCI multidomain	N/A	84 (32.6%)
Non-amnestic MCI single domain	N/A	47 (18.2%)
Non-amnestic MCI multidomain	N/A	19 (7.4%)
MCI not subclassified	N/A	1 (0.4%)

Data are in mean (standard deviation) if not otherwise specified. SCD, subjective cognitive decline; MCI, mild cognitive impairment; n, number of patients; N/A, not applicable; MMSE, Mini-Mental State Examination; AQT, A Quick Test of Cognitive Speed; CDT, Clock Drawing Test.