Group comparisons between key differential diagnostic challenges
| Group comparison | Significantly different presenting symptoms | p Value |
|---|---|---|
| lvPPA × nfvPPA | lvPPA >nfvPPA: | |
| Dysgraphia | <0.05 | |
| Overall presence of left parietal features | <0.05 | |
| nfvPPA >lvPPA: | <0.01 | |
| AOS | <0.01 | |
| amnestic AD × bvFTD | amnestic AD >bvFTD: | |
| Limb apraxia | <0.0001 | |
| amnestic AD × svPPA | amnestic AD >svPPA: | |
| Limb apraxia | <0.01 | |
| amnestic AD × SCI | amnestic AD >SCI: | |
| Limb apraxia | <0.0001 | |
| Overall presence of left parietal features | <0.01 |
AD, Alzheimer's disease; AOS, apraxia of speech; bvFTD, behavioural variant frontotemporal dementia; lvPPA, logopenic variant primary progressive aphasia; nfvPPA, non-fluent variant primary progressive aphasia; SCI, subjective cognitive impairment; svPPA, semantic variant primary progressive aphasia.