Proportion of cases reclassified between FTD clinical phenotypes
| New bvFTD (N=66) | New sv-PPA (N=31) | New nfv-PPA (N=16) | New lv-PPA (N=22) | |
|---|---|---|---|---|
| Old bvFTD (n=71) | 66 | 2 | 1 | 2 |
| Old semantic dementia (n=31) | 0 | 27 | 0 | 2 |
| Old non-fluent PPA (n=33) | 0 | 2 | 15 | 18 |
bvFTD, behavioural variant frontotemporal dementia; lv-PPA, logopenic variant-primary progressive aphasias; nfv-PPA, non-fluent/agrammatic variant-PPA; sv-PPA, semantic variant-PPA.