Table 1.

Descriptive statistics of sample

	Wave 2		Wave 3†		Wave 4
	SLE Q	Missing	SLE Q	Missing	SLE Q	Missing
Males, N (%)††	1118 (83%)	223 (17%)	418 (49%)	438 (51%)***	535 (94%)	32 (6%)
Females, N (%)	1545 (83%)	309 (17%)	483 (40%)	714 (60%)	725 (92%)	64 (8%)
Age, M (SD)	76.6 (6.0)	79.1 (7.4)***	81.2 (5.2)	78.8 (5.2)***	81.7 (4.5)	83.8 (5.6)***
Education, M (SD)	13.5 (2.8)	12.7 (2.9)***	13.8 (3.0)	13.0 (2.9)***	13.9 (2.8)	12.9 (2.2)***
APOE E4+, N (%)††	804 (84%)	156 (16%)	294 (47%)	332 (53%)	368 (92%)	30 (8%)
E4−, N (%)	1841 (83%)	371 (17%)	604 (43%)	812 (57%)	889 (93%)	66 (7%)
3MS score, M (SD)	93.0 (6.3)	88.0 (9.8)***	91.0 (6.3)	91.4 (9.4)	92.7 (6.3)	87.6 (8.5)***
# SLE, M (SD)	1.39 (1.29)		2.15 (1.48)		1.9 (1.39)
# SLE, Mdn	1.0		2.0		2.0

SLE = Stressful life events.

^*p<0.05;

^**p<0.01;

^***p<0.005;

^†Consists of the subsample of participants who completed a clinical assessment at Wave 3.

^††Presented are row percentages, so for example, of the males at Visit 1, 83% completed a SLE questionnaire, and 17% did not.