Table 1.

Demographic characteristics of the samples

	Starting sample (n = 3766)	Sub-sample (n = 1196)
	Mean (SD)	Mean (SD)
Age	75.36 (6.7)	75.75 (6.5)
Gender
Male, n(%)	1602 (41.6)	529/44.2%
Female, n(%)	2251 (58.4)	667/55.8%
Ethnicity
White (n/%)	3243/84.2%	943/78.8%
African American (n/%)	470/12.2%	200/16.7%
Other (n/%)	137/3.6%	51/4.3%
Self-efficacy	37 (8.41)	35.0 (8.5)
Years of education	12.63 (2.9)	11.69 (3.28)
	Range = 0–17 years	Range = 0–20 years
Self-rated memory	3.0 (0.89)	---- ----- ------
CES-D score	1.24 (1.78)	1.8 (2.1)
	range = 0–8	range = 0–8
Immediate memory	5.0 (1.63)	4.5 (1.57)
Delayed memory	3.92 (1.93)	3.5 (1.8)

Note: There are some missing values for some variables in the analyses so they do not always add up to n = 3766 (starting sample) or n = 1188 (subsample). CES-D= Center for Epidemiologic Studies Depression Scale.