TABLE 2. Regression Models for the Effect of Age, Gender, Education, GDS, and Free Recall on Hippocampal Volume (HV).

		Models for total HV			Models for left HV			Models for right HV
Model no.	Predictor	β	t	p Value	β	t	p Value	β	t	p Value
1	(Constant)	–	3.90	<0.001	–	3.91	<0.001	–	3.70	0.001
	Age	−0.17	−1.21	0.235	−0.21	−1.32	0.196	−0.16	−1.05	0.300
	Gender	0.08	0.49	0.627	0.04	0.24	0.813	0.11	0.69	0.494
	Education	−0.10	−0.64	0.521	−0.02	−0.12	0.907	−0.16	−1.09	0.284
	GDS	−0.50	−3.23	0.003	−0.43	−2.69	0.011	−0.54	−3.5	0.001
2	(Constant)	–	2.17	0.038	–	2.35	0.025		1.91	0.065
	Age	−0.15	−0.89	0.379	−0.17	−1.03	0.307	−0.12	−0.72	0.472
	Gender	−0.10	−0.61	0.547	−0.12	−0.72	0.472	−0.08	−0.48	0.634
	Education	0.03	0.17	0.866	0.10	0.58	0.563	−0.03	−0.18	0.853
	Free recall	0.37	2.12	0.041	0.35	2.02	0.052	0.371	2.12	0.042
3	(Constant)	–	2.82	0.008	–	2.85	0.008	–	2.63	0.013
	Age	−0.15	−1.00	0.325	−0.177	−1.11	0.272	−0.12	−0.84	0.408
	Gender	0.01	0.04	0.966	−0.031	−0.18	0.854	0.04	0.24	0.807
	Education	−0.03	−0.20	0.839	0.048	0.30	0.765	−0.10	−0.65	0.521
	Free recall	0.28	1.76	0.088	0.277	1.66	0.106	0.27	1.75	0.089
	GDS	−0.45	−2.93	0.006	−0.383	−2.39	0.023	− 0.48	−3.26	0.003