Boys seem to be more likely to have AS than girls; estimates of the sex ratio range from 1.6:1 to 4:1, using the Gillberg and Gillberg criteria.
Drenge synes at være mere tilbøjelige til at have Aspergers syndrom end piger; estimater af kønsfordelingen spænder fra intervallet 1,6:1 til 4:1, under anvendelse af Gillberg og Gillberg kriterier.