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Cognitive categories according to neuropsychological test results
| Patients without the C9orf72 repeat expansion (n=166) | Patients with the C9orf72 repeat expansion (n=20) | |
|---|---|---|
| ALS-FTD | 20 (12%) | 10 (50%) |
| Executive impairment | 46 (28%) | 4 (20%) |
| Non-executive cognitive impairment | 27 (16%) | 0 (0%) |
| Normal | 73 (44%) | 6 (30%) |
Significance of group analysis, p=0·0002. ALS-FTD=amyotrophic lateral sclerosis with co-morbid frontotemporal dementia.
