Table 1.

Demographic and Hippocampal Volume Statistics for Stable and Declining Groups.

	Stable (n=51)	Declining (n=27)	p-value	Effect Size (d)
Demographics	Mean (SD)	Mean (SD)
Age (yrs)	72.7 (5.0)	73.6 (4.7)	.40	.20
Education (yrs)	15.1 (2.4)	14.5 (3.2)	.33	.23
Sex (M/F)1	13/38	8/19	.79	.06
Retest Interval (days)	551.7 (43.5)	560.6 (47.0)	.41	.20
APOE-ε4 positive1	23.5%	51.9%	.02	.54
Hippocampal Volume2
Left Hippocampus	2.23 (.26)	2.04 (.27)	.005	.69
Right Hippocampus	2.31 (.31)	2.14 (.34)	.03	.53

¹Fisher Exact Test;

²Hippocampal volumes are measured in cm³