Clinical research has shown that autism spectrum disorder and childhood schizophrenia are very similar in clinical features.

Autism Spectrum Disorder (ASD) and childhood schizophrenia are distinct conditions with different clinical features, onset, and developmental impacts. ASD typically presents in early childhood and is characterized by challenges with social interaction, communication, and repetitive behaviors. Childhood schizophrenia is a rare and severe form of schizophrenia that presents in late childhood or adolescence, characterized by hallucinations, delusions, and disorganized thinking.