Table 1.

Sociodemographic and Background Characteristics (N = 2,478).

Variable	No AD Diagnosis (n = 2230)	Probable AD (n = 139)	Possible AD (n = 109)
Age***	M = 73.1 SD = 9.1	M = 81.2 SD = 8.5	M = 79.7 SD = 7.7
Years of education	M = 16.0 SD = 6.0	M = 15.9 SD = 2.7	M = 15.7 SD = 2.9
Female*	n = 1488 (66.7%)	n = 83 (59.7%)	n = 61 (56.0%)
Caucasian*	n = 1897 (85.1%)	n = 129 (92.8%)	n = 102 (93.6%)
Living with spouse or partner	n = 1291 (35.3%)	n = 75 (36.0%)	n = 61 (38.5%)
Lives independently***	n = 2203 (98.8%)	n = 131 (94.2%)	n = 104 (95.4%)
Single family residence***	n = 2006 (90.0%)	n = 111 (79.9%)	n = 88 (80.7%)
Married	n = 1291 (57.9%)	n = 75 (54.0%)	n = 63 (57.8%)
Ever had cardiovascular disease*	n = 104 (4.7%)	n = 11 (7.9%)	n = 6 (5.5%)
Ever had stroke***	n = 41 (1.8%)	n = 9 (6.5%)	n = 8 (7.3%)
Ever had depression in last 2 years***	n = 292 (13.1%)	n = 20 (14.4%)	n = 23 (21.1%)
Mini-Mental Status Examination score*	M = 29.0 SD = 1.5	M = 28.7 SD = 1.4	M = 28.7 SD = 1.1

NOTE

^***p < .001

^**p < .01

^*p < .05