Table 1.
Demographic Means at the first measurement time (SD)
| Stable (n=25) | Progressed (n=39) | |
|---|---|---|
| Age (yrs) | 69.3 (7.4) | 71.6 (7.5) * |
| Education (yrs) | 13.6 (2.7) | 15.4 (3.2) † |
| Gender (% men) | 80 | 74.4 * |
| Crossing Off a (Simple Motor Speed) | 141.8 (30.1) | 142.5 (33.1) |
| Cognitive Battery | ||
| Logical Memory | 7.2 (2.8) | 7.0 (2.6) |
| Information | 21.2 (4.7) | 20.4 (3.9) |
| Boston Naming | 54.3 (4.9) | 55.2 (3.3) |
| Associate Learning | 12.9 (3.2) | 13.0 (3.9) |
| Trailmaking A (sec)b | 51.9 (23.2) | 59.6 (28.9) |
| Block Design | 29.7 (9.0) | 28.2 (8.9) |
| Benton (copy) | 5.6 (1.3) | 5.5 (1.8) |
| Digit Symbol | 41.0 (10.9) | 38.8 (11.0) |
| Mental Control | 7.2 (1.6) | 7.3 (1.7) |
| Digits Forward | 6.8 (1.2) | 6.8 (1.2) |
| Digits Backward | 4.9 (1.4) | 4.6 (1.3) |
| Letter Fluency (S & P) | 26.5 (9.9) | 28.1 (10.7) |
Note: All cognitive tests equivalent at baseline testing
*
The 2 patient groups differ at p < .05; degrees of freedom (df) vary slightly due to missing data (median df = 63; no difference > 3)
†
Trend for difference (t =1.84; p = .07)
a
Score is the reciprocal of the number of seconds to complete multiplied by 100; higher scores indicate better performance
b
Higher scores indicate poorer performance