Table 4.

Verbal memory tests and risk of progression to dementia (multivariate Cox regression analysis)

		B	SE	Exp (B)	95 % CI for Exp (B)	Wald statistic	p
−1 SD
Logical Memory test	Immediate recall	0.03	0.54	1.04	0.36−2.97	0.004	0.95
	Delayed recall	0.71	0.50	2.04	0.77−5.44	2.04	0.15
California Verbal	Five learning trials	1.24	0.78	3.45	0.75−15.91	2.52	0.11
Learning test	Long delayed recall	1.30	0.57	3.65	1.20−11.09	5.22	0.02*
Verbal Paired Associate
Learning test		0.25	0.35	1.29	0.65−2.55	0.53	0.47
Digit Span test	Forward	0.29	0.53	1.34	0.47−3.78	0.30	0.58
	Backwards	0.31	0.47	1.37	0.55−3.43	0.45	0.50
−1.5 SD
Logical Memory test	Immediate recall	0.03	0.43	1.03	0.44−2.41	0.004	0.95
	Delayed recall	0.52	0.45	1.68	0.69−4.06	1.31	0.25
California Verbal	Five learning trials	1.28	0.57	3.61	1.19−10.99	5.12	0.02*
Learning test	Long delayed recall	0.76	0.49	2.13	0.81−5.60	2.37	0.12
Verbal Paired Associate
Learning test		0.55	0.38	1.73	0.83−3.61	2.12	0.15
Digit Span test	Forward	0.92	0.53	2.51	0.89−7.06	3.04	0.08
	Backwards	0.60	0.75	1.82	0.42−7.97	0.64	0.43
−2 SD
Logical Memory test	Immediate recall	0.64	0.43	1.89	0.82−4.37	2.21	0.14
	Delayed recall	0.43	0.43	1.53	0.66−3.58	0.96	0.33
California Verbal	Five learning trials	0.79	0.55	2.21	0.75−6.54	2.07	0.15
Learning test	Long delayed recall	1.45	0.59	4.26	1.35−13.43	6.11	0.01*
Verbal Paired Associate
Learning test		0.28	0.43	1.32	0.57−3.05	0.41	0.52
Digit Span test	Forward	−8.63	408.64	<0.001	0.00−n.d.	<0.001	0.98
	Backwards	− 0.07	1.03	0.94	0.12−7.11	0.004	0.95

^*Statistically significant (p < 0.05).