The congruency of neuropsychological and F18-FDG brain PET/CT diagnostics of Alzheimer’s Disease (AD) in routine clinical practice: insights from a mixed neurological patient cohort

Table 2 Comparison of performance on CERAD subtests (z-scores) across diagnostic groups

CERAD parameter	AD	non-AD	p-value
CERAD parameter	(M ± SD)	(M ± SD)	p-value
BNT	−0.77 ± 1.51	−0.21 ± 1.23	.037*
Wordlist Total	− 2.02 ± 1.34	−1.57 ± 1.55	.138
Wordlist Delayed Recall	−2.25 ± 1.38	−1.15 ± 1,20	.000***
Wordlist Savings	−2.20 ± 1.55	−0.69 ± 1,79	.000***
Wordlist Discrimination	− 2.10 ± 1.56	−1.07 ± 1.54	.001***
Figure Drawings	− 0.61 ± 1.61	−0.60 ± 1.56	.982
Figure Recall	−2.03 ± 1.18	−1.39 ± 1.38	.020*
Figure Savings	−1.93 ± 1.05	−1.12 ± 1.24	.001***
Wordlist Trial 1	−1.25 ± 1.13	−1.01 ± 1.14	.294
Wordlist Trial 2	−1.65 ± 1.13	−1.18 ± 1.47	.091
Wordlist Trial 3	−1.97 ± 1.38	−1.50 ± 1.72	.157
Animals	−0.95 ± 0.97	−1,03 ± 1.26	.747
S-Words	−0.01 ± 1.08	−0.60 ± 1.32	.024*
TMT-A	− 1.14 ± 1.45	−1.18 ± 1.64	.889
TMT-B	−1.70 ± 1.00	−1.54 ± 1.48	.564

Note. Z-scores represent raw test scores relative to the normative database of the CERAD; M mean, SD standard deviation. *p < .05, **p < .01, ***p < .001 (two-tailed). Note that significant differences between groups emerged predominantly for verbal and nonverbal memory performance

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