Table 1.

demographic and baseline information

	n=55			n=17			n=20				n=28
	All Subjects			ET			EPT			T Test*	Never-Treated ANOVA†
	Mean	±	SD	Mean	±	SD	Mean	±	SD	p	Mean	±	SD	p
Age (yr)	66.2	±	5.5	68.5	±	6.1	64.4	±	4.8	0.05	66.1	±	5.2	0.12
Education	16.4	±	2.8	15.0	±	2.6	17.3	±	2.6	0.01	16.6	±	3.0	0.04
Age began HT	48.0	±	4.1	46.2	±	4.2	49.4	±	3.3	0.00				0.02
Years on HT	16.4	±	6.2	20.2	±	6.3	13.3	±	4.1	0.00				0.00
Benton Visual Retention Test	6.5	±	1.8	6.2	±	2.3	6.3	±	1.5	0.79	7.1	±	1.5	0.11
Mini-Mental State Examination	28.6	±	1.5	28.3	±	1.5	28.7	±	0.3	0.42	28.8	±	1.8	0.65
Shipley-Estimated IQ	113.0	±	9.9	110.0	±	9.4	113.0	±	8.5	0.34	116.0	±	11.4	0.20
Geriatric Depression rating Scale	0.6	±	0.9	0.9	±	1.2	0.5	±	0.8	0.19	0.6	±	0.8	0.29
	n=13			n=24
	Current Users			Past Users			T Test‡
	Mean	±	SD	Mean	±	SD	p
Age (yr)	67.3	±	7.3	65.9	±	4.8	0.49
Education	14.9	±	2.9	17.1	±	2.5	0.02
Age began HT	47.6	±	4.7	48.1	±	3.6	0.74
Years on HT	18.2	±	7.4	15.7	±	5.4	0.26
Benton Visual Retention Test	6.7	±	2.1	6.1	±	1.8	0.35
Mini-Mental State Examination	28.3	±	1.6	28.7	±	1.2	0.40
Shipley-Estimated IQ	109.6	±	9.6	113.0	±	8.5	0.28
Geriatric Depression rating Scale	0.6	±	1.0	0.3	±	1.0	0.66
Time since stopped HT				2.1	±	1.0

^*t test comparison between ET and EPT groups

^†ANOVA comparison between all three treatment groups

^‡t test comparison between current and past hormone users