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Autism diagnosis on the rise, according to trends study… A new study published in JAMA Network Open shows that the number of children and adults diagnosed with autism spectrum disorder (ASD) has increased by 175% over a decade.   Researchers analyzed … study offers insights into trends in autism diagnosis over time, it does not replace or contradict prevalence data from the CDC , and should not be viewed as a standalone measure of autism prevalence.  Why is autism increasing? Results showed that … women, compared to 185% among boys and 215% among men. This trend may reflect greater awareness of ASD signs in females , who may present differently from males.  Among racial and ethnic groups, autism diagnosis rates rose significantly for …