Details of children with and without MPS III including numbers in families, the presence of sleep problems, and its age at onset
| Number of children (%) | Age range | Sleep problems | Mean age of onset | |||||
|---|---|---|---|---|---|---|---|---|
| 0 | 1 | 2 | 3 | Years (mean) | Y (%) | N (%) | Years | |
| With MPS III | 0 (0) | 109 (76.8) | 32 (22.5) | 1 (0.7) | 0–40 (13.5) | 129 (91.5) | 12 (8.5) | 3.8 |
| Without MPS III | 3 (6.5) | 27 (58.7) | 14 (30.4) | 2 (4.4) | 0–43 (13.3) | 5 (8.2) | 56 (91.8) | 10.2 |