. Author manuscript; available in PMC: 2010 Apr 13.

Published in final edited form as: J Alzheimers Dis. 2009 Nov;18(3):691–701. doi: 10.3233/JAD-2009-1227

Table 5.

Demographics [mean (SD)] and distribution [number (%)] with clinically possible AD in community compared to clinic cohorts

	Community cohorts	Clinical cohort
Number	42	46
Age at death	87.2 (SD = 6.6)	81.3 (SD = 6.3)
Education	16.9 (SD = 3.1)	14.3 (SD = 3.5)
MMSE	13.4 (SD = 8.4)	5.8 (SD = 7.5)
Pathologic diagnosis of AD (NIA-Reagan)	24 (57.1%)	41 (89.1%)
High	7 (16.7%)	27 (58.7%)
Intermediate	17 (40.5%)	14 (30.4%)
Infarcts (any)	28 (66.7%)	19 (41.3%)
Macroscopic	27 (64.3%)	14 (30.4%)
Microscopic	16 (38.1%)	10 (21.7%)
Lewy bodies (any)	11 (26.2%)	22 (47.8%)
Neocortical	7 (16.7%)	19 (41.3%)
One pathology (AD, infarcts, or Lewy bodies)	21 (50%)	13 (28.3%)
Mixed pathology	17 (40.5%)	29 (63%)
FTLD or other atypical pathology	0	1 (2.2%)