Clinical characteristics of 39 patients suffering from myotonic dystrophy
| Age (years) | 42.9 (12.1) |
| Sex, male (n (%)) | 23 (59) |
| Cardiac symptoms (n (%)) | |
| Yes | 23 (59) |
| No | 16 (41) |
| Onset of disease (months) | 136 (103.7) |
| Brooke score | 4.3 (2.7) |
Values are mean (SD) unless stated otherwise.