Table 1 Demographic information for the PWS and AS groups
| PWS | AS | |
|---|---|---|
| Medication use | ||
| Growth hormone | 68.0% | 0% |
| Anticonvulsant | 8.0% | 73.7% |
| Genetic subtype | ||
| Deletion | 24.0% | 47.4% |
| UPD | 64.0% | 15.8% |
| Imprinting centre defect | 8.0% | 0% |
| Abnormal methylationa | 4.0% | 5.2% |
| UBE3A mutation | NA | 31.6% |