Table 1.

Details of clinicopathological diagnoses of subjects who lacked dementia as well as parkinsonism at initial visits. Table is divided by subjects who were clinicopathologically normal, those who progressed to a defined neurodegenerative or cerebrovascular disease, and other abnormalities not meeting a clinicopathological diagnosis; the type of pathologic diagnosis is listed below each main group. Diagnostic groups within each main category listed above are not mutually exclusive. Age is listed as mean ± standard deviation.

	N	% out of 119	females, N (%)	age of death
Clinicopathological Normal at Autopsy	87	73.1%	46 (53%)	87 ± 6.6
Pre-Clinical Alzheimer's Disease	33	27.7%	21 (63%)	90 ± 4.9
Incidental Lewy Bodies	17	14.3%	8 (47%)	88 ± 5.1
Incidental Progressive Supranuclear Palsy	4	3.4%	3 (75%)	91 ± 9.4
Neurodegenerative Disease at Autopsy	30	25.2%	17 (57%)	89 ± 7.5
Alzheimer's Disease	20	16.8%	12 (60%)	89 ± 7.3
Vascular Dementia	7	5.9%	6 (86%)	95 ± 3.7
Progressive Supranuclear Palsy	4	3.4%	2 (50%)	95 ± 10.1
Neurofibrillary Tangle Predominant Dementia	3	2.5%	1 (33%)	89 ± 5.7
Parkinson's Disease	3	2.5%	2 (67%)	90 ± 10.7
Dementia with Lewy Bodies	1	0.8%	1 (100%)	90
Corticobasal Degeneration	1	0.8%	1 (100%)	75
Multiple System Atrophy	1	0.8%	0 (0%)	75
Other abnormalities	2	1.7%	0 (0%)	86± 9.2