Number (%) of patients of each type ever diagnosed with hypoventilation and with mild, moderate or severe apnoea
| Type | Total patients | Hypoventilation | Level of sleep apnoea severity | |||
| None | Mild | Moderate | Severe | |||
| BMD | 5 | 0 (0)* | 1 (20) | 0 (0) | 0 (0) | 4 (80) |
| CMD | 7 | 4 (57) | 2 (29) | 4 (57) | 0 (0) | 1 (14) |
| DM | 24 | 10 (42) | 6 (25) | 11 (46) | 5 (21) | 2 (8) |
| DMD | 27 | 14 (52) | 7 (26) | 11 (41) | 7 (26) | 2 (7) |
| LGMD† | 10 | 2 (22) | 4 (40) | 4 (40) | 2 (20) | 0 (0) |
| Overall | 73 | 30 (42) | 20 (27) | 30 (41) | 14 (19) | 9 (12) |
Patients with multiple studies were assigned their highest observed apnoea severity level.
*Percentages use the type-specific total number of patients (column 2) as the denominator. Apnoea percentages may not sum to 100 due to rounding.
†One of 10 patients with LGMD was missing hypoventilation status; thus, the denominator for hypoventilation was 9 for LGMD and 72 overall.
BMD, Becker muscular dystrophy; CMD, congenital muscular dystrophy; DM, myotonic dystrophy; DMD, Duchenne muscular dystrophy; LGMD, limb-girdle muscular dystrophy.