Distribution of patients by time from symptom onset to ALS diagnosis (in quarters) | |||||||
---|---|---|---|---|---|---|---|
Symptom group | Symptom | Average, quarters | Median, quarters | 0–3, % | 4–7, % | 8–11, % | 12+, % |
Limb | Muscle weakness | 2.64 | 1.0 | 75 | 12 | 7 | 5 |
Gait abnormality | 4.53 | 2.0 | 61 | 12 | 12 | 15 | |
Difficulty in walking | 5.18 | 3.0 | 52 | 15 | 21 | 12 | |
Lack of coordination | 3.26 | 1.0 | 68 | 16 | 9 | 7 | |
Bulbar | Speech disturbance | 1.83 | 1.0 | 89 | 7 | 3 | 1 |
Voice resonance disorder | 3.00 | 2.0 | 76 | 8 | 11 | 5 | |
Dysphagia | 1.07 | 1.0 | 95 | 5 | 0 | 0 |