Table 4.
Clinical characteristics of C9ORF72-ALS cases and controls from case-control analysis.
| C9ORF72-ALS | Non-C9ORF72-ALS | Neurologically Normal Controls | |
|---|---|---|---|
| Number in group | 17 | 34 | 34 |
| Proportion male (%) | 58.8 | 58.8 | 52.9 |
| Age (years) | 56.4 (36-71) | 57 (35-72) | 57 (36-74) |
| ALS (%) | 15 (88.2) | 34 (100) | - |
| PMA (%) | 2 (11.8) | 0 | - |
| PLS (%) | 0 | 0 | - |
| Limb onset (%) | 10 (59) | 21 (62) | - |
| Bulbar onset (%) | 7 (41) | 13 (38) | - |
ALS = amyotrophic lateral sclerosis; PMA= progressive muscular atrophy variant; PLS= primary lateral sclerosis variant.