3 Year Follow up Study of the IDEA Population

Long-term Efficacy of Early Intervention With Early Start Denver Model (ESDM) on the Severity of Autism

The aim of this study is to assess the efficiency of early treatment for ASD children 5 years after initial treatment.

The early treatment implemented was 12 hours per week of ESDM versus treatment as usual during 2 years. This was done as an RCT, called IDEA. Children will now be included in IDEA-2 SCOLA, a three year follow up study.

180 children with ASD, younger than 3 years old, were included in the IDEA RCT. Children were allocated to the ESDM treatment group or the treatment as usual group. The aim of IDEA-2 is to follow-up this population for 3 years after the initial 2 years of intervention, that is, 5 years after initial inclusion to IDEA.

Investigators hypothesize that children who received ESDM 12 hours per week will have a significant decrease of autism symptoms and will have a better scholastic level 5 years after initial inclusion to IDEA.

Inclusion Criteria:

• Inclusion in the initial IDEA trail
• Requiring less than 40 minutes travel to the assessment center

Exclusion Criteria:

• Impossibility of coming in for assessment
• Exclusion from IDEA