Table 1 Clinical and genetic characteristics according to clinical phenotype category
| Â | Mild type n = 9 | Classical type n = 63 | Congenital/childhood type n = 8 | Total n = 80 |
|---|---|---|---|---|
Male | 5 (56%) | 33 (52%) | 7 (88%) | 45 (56%) |
Age in years (range) | 60 (46–70) | 47 (24–64) | 32 (24–51) | 48 (24–70) |
Age at onset in years (range) | 52 (50–65)* | 27 (10–51) | 6.5 (0–10) | 27 (0–65) |
Muscle strength sumscore (range) | 110 (107–110) | 96 (73–109) | 100 (78–109) | 98 (73–110) |
Abnormal ECG | 1 (11%) | 41 (65%) | 7 (88%) | 49 (61%) |
Abnormal CMR | 3 (33%) | 28 (44%) | 4 (50%) | 35 (44%) |