Table 3.

Alzheimer’s dementia and frontotemporal lobar degeneration: Average z-scores, lobar volumetric percentiles, and degree of correlation

	Mean z-score	Mean volume (percentile)	Pearson correlation coefficient (r)	P	Metabolism to volume loss index (mean Z-score/volumetric percentile)
AD			n=29, 10 male and 19 female (average age 70.6),
Parietal lobe	−1.76	21	0.30	0.12	−8.4
Temporal lobe	−1.67	7	0.38	<0.05	−23.8
FTLD			n=34, 19 male and 15 female (average age 72.8)
Frontal lobe	−1.10	22.8	0.35	0.05	−4.82
Temporal lobe	−0.6	13.8	−0.09	0.92	−4.34

AD: Alzheimer’s dementia; FTLD: Frontotemporal lobar degeneration