Table 2.
Diagnoses before and after first diagnosis of interest
| PPA | AD | |||
|---|---|---|---|---|
| n | (%) | n | (%) | |
| Diagnosis BEFORE first diagnosis of interest | ||||
| Pending diagnosis | 3277 | (49.6) | 83,967 | (53.4) |
| Alzheimer’s disease (AD) | 835 | (12.6) | 0 | (0.0) |
| Memory complaints | 492 | (7.4) | 11,781 | (7.5) |
| MCI | 467 | (7.1) | 10,256 | (6.5) |
| Amnestic MCI | 294 | (4.4) | 21,974 | (14.0) |
| Huntington disease | 205 | (3.1) | 754 | (0.5) |
| Mixed dementia | 177 | (2.7) | 11,348 | (7.2) |
| Anxiety disorder, depressive disorder | 177 | (2.7) | 5540 | (3.5) |
| Frontotemporal lobar degeneration (FTLD) | 90 | (1.4) | 280 | (0.2) |
| Others | 596 | (9.0) | 11,419 | (7.3) |
| Diagnosis AFTER first diagnosis of interest | ||||
| PPA | 10,760 | (72.7) | 0 | (0.0) |
| Alzheimer’s disease (AD) | 2049 | (13.8) | 318,769 | (90.7) |
| Frontotemporal lobar degeneration (FTLD) | 328 | (2.2) | 672 | (0.2) |
| Pending diagnosis | 323 | (2.2) | 3761 | (1.1) |
| Huntington disease | 229 | (1.5) | 634 | (0.2) |
| Mixed dementia | 223 | (1.5) | 14,267 | (4.1) |
| MCI | 146 | (1.0) | 1924 | (0.5) |
| Amnestic MCI | 89 | (0.6) | 2546 | (0.7) |
| Others | 1107 | (7.5) | 27,576 | (7.8) |