Performance on the Hopkins Board of Huntington’s and Alzheimer’s patient groups matched for mean Mini-Mental State Examination score. Values are mean (SD)
| Huntington’s disease | Alzheimer’s disease | p value | |
|---|---|---|---|
| No of patients | 48 | 90 | |
| Age (years) | 49.40 (14.18) | 73.06 (9.58) | <0.001 |
| Sex (men:women) | 17:31 | 39:51 | 0.367 |
| Education (years) | 13.29 (2.41) | 13.42 (3.74) | 0.808 |
| Duration of illness (years) | 8.63 (5.22) | 3.71 (2.98) | <0.001 |
| Mini-Mental State Examination (score) | 22.71 (2.13) | 22.39 (3.08) | 0.477 |
| Hopkins Board | |||
| Naming (range 0–9) | 8.92 (0.35) | 8.67 (0.65) | 0.004 |
| Errors to criterion (range 0–68) | 21.17 (15.79) | 37.19 (20.53) | <0.001 |
| Trials to criterion (range 2–10) | 8.81 (2.03) | 9.20 (1.89) | 0.276 |
| Delayed item recall (range 0–9) | 6.69 (1.94) | 2.38 (2.61) | <0.001 |
| Delayed location recall (range 0–9) | 6.21 (2.06) | 4.15 (2.93) | <0.001 |