Table 2.
Comparison of performance (mean (SD) scores) on TYM (total and subscores) between patients with Alzheimer’s disease (n=94) and age matched controls (n=282)
| Subscore (maximum) | Controls | Patients | Difference | P value* |
|---|---|---|---|---|
| Orientation (10) | 9.9 (0.5) | 8.3 (2.0) | 1.6 | <0.001 |
| Copying (2) | 1.8 (0.6) | 1.7 (0.7) | 0.1 | 0.09 |
| Semantic knowledge (3) | 2.6 (0.6) | 1.4 (1.0) | 1.3 | <0.001 |
| Calculation (4) | 3.7 (0.6) | 3.1 (1.2) | 0.7 | <0.001 |
| Fluency (4) | 3.5 (1.0) | 2.2 (1.5) | 1.4 | <0.001 |
| Similarities (4) | 3.4 (1.0) | 3.0 (1.3) | 0.5 | 0.002 |
| Naming (5) | 4.9 (0.4) | 4.4 (1.1) | 0.5 | <0.001 |
| Visuospatial 1 (3) | 2.7 (0.7) | 1.8 (1.2) | 1.0 | <0.001 |
| Visuospatial 2 (4) | 3.7 (0.7) | 2.9 (1.5) | 0.8 | <0.001 |
| Anterograde (6) | 5.2 (1.5) | 0.9 (1.8) | 4.2 | <0.001 |
| Executive (help) (5) | 5.0 (0.2) | 3.7 (1.2) | 1.3 | <0.001 |
| Total (50) | 46.6 (4.0) | 33.2 (8.2) | 13.4 | <0.001 |
*Two tailed significance (uncorrected). Significance values shown are for independent samples t tests and are uncorrected; after Bonferroni correction for multiple comparisons level for significance is P=0.004.