Landmark autism research finds Phelan-McDermid Syndrome may affect 1 in 7,300 people
A new study by Mount Sinai researchers has estimated that Phelan-McDermid syndrome affects approximately 13.7 cases per 100,000 people, equivalent to about 1 in 7,300 individuals. The condition is a rare genetic disorder caused by deletion or mutation of the SHANK3 gene and often co-occurs with autism spectrum disorder.