The most recent data shows that about one in 68 children in the U.S. are affected by autism and boys are four times more likely than girls to be diagnosed.
Autism Spectrum Disorder (ASD) is marked by communication and social difficulties, sensory processing issues, and inflexible patterns of behavior. Almost everything that researchers have learned about the disorder is based on data derived from studies of boys.
However, researchers are starting to learn that ASD manifests differently in girls. This has led many girls to be undiagnosed or misdiagnosed.