Table 1.
. Demographic and clinical characteristics.
| PPA | Controls | |
|---|---|---|
| N | 20 | 25 |
| Age | 63.95 ± 8.00 | 64.88 ± 7.23 |
| Gender (M:F) | 8:12 | 10:15 |
| PPA Subtype (G:S:L:O) | 8:6:5:1 | – |
| Disease Duration (Months) | 48.76 ± 27.96 | – |
| PASS sum of boxes score (N = 18) | 6.42 ± 5.42 | – |
| Articulation (0:0.5:1:2:3) | 12:1:1:2:2 | – |
| Fluency (0:0.5:1:2:3) | 4:8:2:2:2 | – |
| Word retrieval (0:0.5:1:2:3)l | 3:7:5:3:0 | – |
| Single word comprehension (0:0.5:1:2:3) | 11:4:2:1:0 | – |
Abbreviations: PPA = primary progressive aphasia; M = male; F = female; G = agrammatic PPA; S = semantic PPA; L = logopenic PPA; O = Mixed or Uncertain PPA type; PASS = Progressive Aphasia Severity Scale.