Table 1.
Demographic, cognitive, and behavioral variables for the total sample and individual diagnostic groups
| Variable | Total Sample | Normal Cognition | MCI | AD |
|---|---|---|---|---|
| n | 123 | 52 | 37 | 34 |
| Age | 74.1 (5.7) | 72.5 (4.9) | 73.4 (5.0) | 77.2 (6.4) |
| Education | 16.1 (2.4) | 16.7 (2.1) | 15.3 (2.7) | 16.0 (2.3) |
| Sex (% female) | 58.5% | 61.5% | 56.8% | 55.6% |
| Race (% Caucasian) | 98.4% | 100.0% | 94.6% | 100.0% |
| WRAT | 109.5 (8.5) | 110.6 (7.4) | 107.3 (9.9) | 110.3 (8.3) |
| RBANS Total Scale | 91.0 (22.1) | 110.9 (13.4) | 82.8 (12.0) | 69.7 (14.0) |
| RBANS Immediate Memory Index | 87.8 (22.5) | 107.5 (13.4) | 79.0 (15.7) | 67.3 (13.9) |
| RBANS Delayed Memory Index | 82.0 (29.4) | 110.6 (12.1) | 69.9 (20.0) | 51.7 (11.3) |
| HVLT-R Total Recall | 41.8 (15.1) | 54.9 (8.7) | 36.7 (11.0) | 27.2 (8.4) |
| HVLT-R Delayed Recall | 37.5 (16.8) | 53.9 (7.8) | 28.8 (11.5) | 21.9 (6.5) |
| BVMT-R Total Recall | 41.6 (16.2) | 56.8 (8.9) | 34.8 (11.5) | 25.8 (5.2) |
| BVMT-R Delayed Recall | 40.9 (17.6) | 57.5 (8.0) | 35.0 (12.9) | 21.9 (3.8) |
Note: MCI = Mild Cognitive Impairment, AD = Alzheimer’s Disease, WRAT = Wide Range Achievement Test – Fourth Edition Reading Subtest, RBANS = Repeatable Battery for the Assessment of Neuropsychological Status, HVLT-R = Hopkins Verbal Learning Test – Revised, BVMT-R = Brief Visuospatial Memory Test – Revised. WRAT score and RBANS scores listed as a Standard Score, and HVLT-R and BVMT-R scores are listed as T Scores. All values are Mean (Standard Deviation) unless listed otherwise.