Table 1.

Participant characteristics

Variable	Subjective cognitive decline (n = 30)	Healthy control subjects (n = 44)	P value∗
Age (y)	72.94 (±4.79)	72.49 (±6.37)	.84
Education (y)	16.40 (±2.59)	16.21 (±2.78)	.78
Gender ratio (F:M)	20:10	25:18	.46
ADNI–memory composite	1.11 (±0.54)	0.44 (±0.78)	.50
ADNI–executive function composite	0.43 (±0.78)	0.74 (±0.72)	.09
APOE Status (total)
APOE ε2-3	2	3
APOE ε3-3	18	23
APOE ε3-4	9	12
APOE ε4-4	1	0
Not available	0	6

Abbreviations: APOE, apolipoprotein E; SD, standard deviation.

NOTE. Mean (SD)

^∗t tests and χ² test obtained P values.