. Author manuscript; available in PMC: 2015 Jan 10.

Published in final edited form as: J Alzheimers Dis. 2014;40(4):897–906. doi: 10.3233/JAD-131853

Table 1.

Sample demographic data

Group	Age at scan	Illness duration	MMSE	n	M/F	Intracranial volume
Controls	62.39 (±6.51)		28.90 (±1.22)	21	7/14	1424 (±124)
AD	63.88 (±7.22)	2.49 (±1.25)	22.30 (±4.89)^*	19	8/12	1379 (±137)
PNFA	64.93 (±7.21)	3.56 (±2.69)	16.88 (±11.37)^*	9	3/6	1373 (±77)
SD	63.77 (±7.13)	3.90 (±1.81)	22.92 (±6.63)^*	13	5/8	1440 (±156)
FTD	61.25 (±4.18)	1.85 (±0.92)	20.27 (±6.51)^*	12	4/8	1419 (±150)

Mean (min-max) of: age at scan, illness duration, MMSE, and intracranial volume.

significantly different from controls in Kruskal-Wallis ANOVA with a Mann-Whitney U-test post-hoc.

AD, Alzheimer’s disease, FTD, Frontotemporal dementia; M/F: the number of males/females included in the study; MMSE, Mini-Mental State Examination,; PNFA, progressive nonfluent aphasia; SD, semantic dementia.