Summary statistics of age and BMI z-score among all PSG studies of patients with each type of muscular dystrophy
| Type | N* | Minimum | 1st quartile | Median | Average | 3rd quartile | Maximum |
| Age (years) | |||||||
| BMD | 7 | 3.4 | 3.4 | 18 | 30.1 | 54.4 | 58.5 |
| CMD | 9 | 4.4 | 11.5 | 14.2 | 13.6 | 14.3 | 19.3 |
| DM | 37 | 0.3 | 7.3 | 22 | 23.7 | 31.7 | 69.2 |
| DMD | 38 | 2.8 | 10.5 | 13.4 | 14 | 16.9 | 25.4 |
| LGMD | 13 | 9.8 | 12.8 | 23.1 | 28.5 | 34 | 68.8 |
| All types | 104 | 0.3 | 10.5 | 14.4 | 20.3 | 25.4 | 69.2 |
| BMI (kg/cm2) | |||||||
| BMD | 7 | 16.5 | 16.5 | 29 | 26.9 | 31.3 | 33.6 |
| CMD | 8 | 10.8 | 16.5 | 17.7 | 17.4 | 19.5 | 20.4 |
| DM | 37 | 13.3 | 16.1 | 19.5 | 21.7 | 24.2 | 38.4 |
| DMD | 38 | 13.8 | 16.9 | 23.6 | 24 | 27.3 | 45.2 |
| LGMD | 13 | 15.4 | 17.1 | 22.3 | 24.1 | 26.4 | 49.7 |
| All types | 103 | 10.8 | 16.8 | 21.1 | 22.9 | 27.8 | 49.7 |
| BMI z-score | |||||||
| BMD | 7 | 0.74 | 0.74 | 1.46 | 1.57 | 1.95 | 2.31 |
| CMD | 8 | −9.56 | −1.61 | −0.73 | −1.64 | −0.45 | 0.58 |
| DM | 37 | −2.09 | −0.98 | 0.58 | 0.26 | 0.99 | 2.46 |
| DMD | 38 | −6.32 | −0.53 | 1.18 | 0.63 | 1.86 | 2.82 |
| LGMD | 13 | −2.87 | −1.28 | 0.21 | 0.19 | 1.2 | 2.87 |
| All types | 103 | −9.56 | −0.62 | 0.74 | 0.33 | 1.53 | 2.87 |
*Number of PSG studies.
BMD, Becker muscular dystrophy; BMI, body mass index; CMD, congenital muscular dystrophy; DM, myotonic dystrophy; DMD, Duchenne muscular dystrophy; LGMD, limb-girdle muscular dystrophy; PSG, polysomnography.