Angelman syndrome is most common in Caucasians, but can occur in all racial and ethnic backgrounds. It affects both male and female genders equally. The exact cause of Angelman syndrome is currently unknown, however, it is believed to be caused by a genetic mutation or deletion on the maternal chromosome 15. It is estimated that 1 in 15,000-20,000 people worldwide have Angelman syndrome. Common signs and symptoms include developmental delays, severe speech impairments, and physical differences such as a wide mouth, small head, and wide-set eyes. Treatment options vary and depend on the individual person's needs and include physical, occupational, and speech therapy.
Overall, Angelman syndrome can occur in any ethnic and racial background, though it is most commonly found in Caucasians. It is a genetic disorder, and the exact cause is still unknown. Treatment options vary depending on the individual's needs.