Table 1.

Baseline clinical characteristics^* of 4015 participants in four community-based cohort studies of aging, according to baseline memory complaints^**

Characteristic*	Persons with memory complaints n = 1310	Persons without memory complaints n = 2705	Total group n = 4015
Age, years	78.8 (7.3)	77.1 (7.2)	77.7 (7.2)
Female sex, n (%)	949 (72.4%)	2012 (74.4 %)	2961 (73.7%)
Black, n (%)	362 (27.7%)	769 (28.5 %)	1131 (28.2%)
Education, years	15.7 (3.7)	15.9 (3.8)	15.8 (3.8)
MMSE score***	27.1 (3.3)	28.0 (2.4)	27.7 (2.7)
Global cognitive score	−0.169 (0.676)	−0.064 (0.596)	−0.012 (0.633)
Depressive symptoms score****	1.50 (1.82)	0.97 (1.49)	1.14 (1.61)

^*Values are mean (SD), unless otherwise specified

^**Persons with memory complaints are those whose memory score was 8 or more on the sum of two questions; see methods for further description

^***MMSE: Mini-Mental State Examination; maximal (highest) score is 30

^****Based on the Center for Epidemiologic Studies Depression Scale (CES-D; range: 0–10): number of 10 depressive symptoms endorsed