Preschool to School in Autism: Neuropsychiatric Problems 8 Years After Diagnosis at 3 Years of Age.

The team tracked kids first told they had autism at age 3. Eight years later they checked who still had neuropsychiatric diagnoses.

They used medical charts and parent reports. No new treatment was tested.

More than nine in ten children still met criteria for at least one neuropsychiatric disorder at age 11.

Autism labels stuck, and most kids also kept extra needs like ADHD or anxiety.

Morrison et al. (2017) saw the same strong autism stability, but they also found big jumps in IQ. Eussen et al. (2016) show the diagnosis stays even when cognition improves.

Waizbard-Bartov et al. (2022) extends this picture: half of autistic kids move up or down in severity between ages 3 and 11. High persistence of the label can coexist with shifting day-to-day symptoms.

Marsh et al. (2017) pull the evidence together: behavioral teaching helps school skills, yet social inclusion stays hard. The new data say you should plan for long-term support across domains, not just academics.

Expect most early-diagnosed children to need ongoing services past fifth grade. Build long-term goals that cover self-care, social, and emotional skills. Re-evaluate yearly so you can adjust therapy as symptoms wax and wane.