| | CTRL | Pre-HD | ANCOVA |
|---|
| Median | IQR | Median | IQR | F | p |
|---|
| Executive Composite Score | 321 | 65 | 307 | 74 | (1,34) 0.313 | 0.579 |
| Memory Composite Score | 206.5 | 32 | 203 | 61 | (1,34) 0.225 | 0.638 |
| Vocabulary - WAIS III | 36.5 | 15 | 37 | 13 | (1,34) 0.271 | 0.606 |
| Raven Matrices | 8 | 2 | 9 | 3 | (1,34) 0.105 | 0.748 |
| Montreal Cognitive Assessment | 26 | 3 | 26 | 3 | (1,34) 0.248 | 0.622 |
| Benton Visual Form Discrimination | 30.5 | 3 | 30 | 4 | (1,34) 0.310 | 0.861 |
| HADS-SIS – Depression | 4 | 5 | 4 | 6 | (1,34) 0.150 | 0.700 |
| HADS-SIS – Anxiety | 6 | 7 | 5 | 5 | (1,34) 0.197 | 0.660 |
- No significant differences found between Pre-HD and Controls in any of the Neuropsychological Measures
- IQR Interquartile Range, HADS-SIS Hospital Anxiety and Depression Scale – Snaith Irritability Scale
- Executive Composite Score = Stroop word reading test (total correct) + Stroop color naming test (total correct) + Stroop interference test (total correct) + Symbol digit modality test (total correct) + Verbal fluency test (letters-PMR) (total correct) + Verbal fluency test (category-animals) (total correct)
- Memory Composite Score = Benton visual retention test (total correct) + Auditory verbal learning test (trials-1-5) (total correct) + Auditory verbal learning test (recall) (total correct) + Auditory verbal learning test (recognition) (total correct) + Corsi block tapping task (direct) (total correct) + Corsi block tapping task (inverse) (total correct)
