Table 2.
Exclusion criteria and the numbers excluded from each research clinic according to the reason for exclusion. From the total cases that came to autopsy at the University of Kentucky Alzheimer's Disease Center (n = 501), a total of 167 were excluded according to the criteria shown. By far the most frequent criterion for exclusion were undocumented mini‐mental status examination (MMSE) scores (n = 94) or cases for whom MMSE scores were documented >4 years prior to death (n = 17), which were most often seen in the high‐dementia clinic. Abbreviations: FTD = frontotemporal dementia.
| Reason for exclusion from study | n (cohort) | Total | |
|---|---|---|---|
| Initially normal | Dementia clinic | ||
| Chronic infection | 2 | 0 | 2 |
| Subdural/chronic hematoma | 3 | 2 | 5 |
| Contusions | 1 | 4 | 5 |
| Tumor (including adenomas) | 9 | 1 | 10 |
| Hydrocephalus (not ex vacuo) | 1 | 1 | 2 |
| Infarcts + aphasia | 2 | 1 | 3 |
| Undocumented MMSE scores | 1 | 93 | 94 |
| >4 years since final MMSE score | 2 | 27 | 29 |
| FTDs, all subtypes | 2 | 15 | 17 |
| Total | 23 | 144 | 167 |