Table 2.
Subject characteristics
| PPA, n = 37 | Control, n = 32 | |
|---|---|---|
| M/F (% male) | 16/21 (43.2%) | 16/16 (50%) |
| Mean (SD) age in years | 64.9 (7.2) | 62.5 (7.0) |
| Mean (SD) education in years | 16.1 (2.1) | 15.8 (2.5) |
| Race (Caucasian/Asian/African American) | 37/0/0 | 26/1/5* |
| Mean (SD) [range] WAB Aphasia Quotient | 86.9 (7.5) [73.9-97.2] | – |
| Mean (SD) [range] | n = 34 | n = 28 |
| Immediate Raw Score | 35.9 (5.0) [26-44] | 37.4 (3.8) [27-43] |
| Delay Raw Score | 37.3 (4.3) [28-45] | 37.6 (3.5) [29-45] |
| Immediate Scaled Score | 11.1 (3.3) [6-17] | 11.7 (2.7) [6-17] |
| Delay Scaled Score | 12.5 (3.3) [6-18] | 12.3 (2.6) [6-18] |
Abbreviations: PPA, primary progressive aphasia; SD, standard deviation, WAB, Western Aphasia Battery.
NOTE. The demographic information of the study sample and WMS-III, Wechsler Memory Scale, Third Edition (WMS-III Faces) raw and scaled scores for Immediate and Delayed recognition. On the WMS-III Faces test, three PPA patients performed in the mildly impaired range for Immediate Recognition, with one of those three also for Delayed Recognition. Two control subjects also performed in the mildly impaired range for Immediate Recognition, and one for Delayed Recognition (normal: scaled score greater than 6, mild impairment: 5–6, moderate: 3–4, severe: 1–2). The WAB was administered only to PPA patients, because healthy adults are expected to obtain a perfect score of 100. Lower scores signify increasing language deficits [45].
*P < .01.