Table 2.

Significances and HRs for All Factors in Proportional Hazards Model^a

Factor	P Valueb	Mean HR (95% CI)
Age	<.001c	1.15 (1.06–1.24)
Education	.14	0.90 (0.78–1.04)
Sex (male vs female)	.15	2.28 (0.76–8.57)
Hippocampus radial thickness
CA1 right	.08	1.22 (0.62–2.60)
CA1 left	.57	0.50 (0.22–1.09)
Fornix body white volume	.02c	0.47 (0.24–0.89)
Fornix axial diffusivity	.005c	1.25 (1.02–1.46)

Abbreviations: CA1, cornu ammonis 1; HR, hazard ratio.

^aCombining nonbrain factors with fornix body white matter volume and fornix axial diffusivity.

^bDetermined by use of the χ² test.

^cSignificant factor.