Table 2.

Demographics [mean (SD)] and distribution [number (%)] of pathology in persons with no cognitive impairment in community compared to clinic cohorts

	Community cohorts	Clinical cohort
Number	188	14
Age at death	83.8 (SD = 6.4)	81.6 (SD = 10.7)
Education	17.0 (SD = 3.9)	14.7 (SD = 3.0)
MMSE	28.3 (SD = 1.6)	27.8 (SD = 1.6)
Pathologic diagnosis of AD (NIA-Reagan)	73 (38.8%)	8 (57.1%)
High	2 (1.1%)	1 (7.1%)
Intermediate	71 (37.8%)	7 (50.0%)
Infarct (any)	73 (38.8%)	5 (35.7%)
Macroscopic	41 (21.8%)	1 (7.1%)
Microscopic	41 (21.8%)	5 (35.7%)
Lewy bodies (any)	23 (12.2%)	1 (7.1%)
Neocortical	5 (2.7%)	1 (7.1%)
One pathology (AD, infarcts, or Lewy bodies)	87 (46.3%)	6 (42.9%)
Mixed pathology	16 (8.5%)	2 (14.3%)
FTLD or other atypical pathology	0	0