Table 1.
ALS patients (n = 27)
| Age range (years) | 33–82 |
| Mean age (years) | 61 ± 11 |
| Gender | 14 M 13 F |
| Duration (months)1 | 11 ± 7 |
| Spinal onset | 21 |
| Bulbar onset | 6 |
| Median survival (years)2 | 2 |
| MRC grade of muscle (n) | 0–2 (8), 3 (4), 4 (11), 5 (4) |
| Muscle (n) | TA (14); VL (4) |
| Bic (3), Delt (6) | |
| EMG denervation | 25 (2 muscles not tested) |
Bic, biceps; Delt, deltoid; EMG, electromyography; MRC, medical research council; TA, tibialis anterior; VL, vastus lateralis.
1
Symptom onset to time of biopsy.
2
From time of diagnosis.