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Am J Intellect Dev Disabil. 2010 Sep;115(5):381-405. doi: 10.1352/1944-7558-115.5.381.

Using participant data to extend the evidence base for intensive behavioral intervention for children with autism.

Author information

1
Akershus University College, Lillestrom, Norway. eldevik@online.no

Erratum in

  • Am J Intellect Dev Disabil. 2011 Jul;116(4):ii.

Abstract

We gathered individual participant data from 16 group design studies on behavioral intervention for children with autism. In these studies, 309 children received behavioral intervention, 39 received comparison interventions, and 105 were in a control group. More children who underwent behavioral intervention achieved reliable change in IQ (29.8%) compared with 2.6% and 8.7% for comparison and control groups, respectively, and reliable change in adaptive behavior was achieved for 20.6% versus 5.7% and 5.1%, respectively. These results equated to a number needed to treat of 5 for IQ and 7 for adaptive behavior and absolute risk reduction of 23% and 16%, respectively. Within the behavioral intervention sample, IQ and adaptive behavior at intake predicted gains in adaptive behavior. Intensity of intervention predicted gains in both IQ and adaptive behavior.

PMID:
20687823
DOI:
10.1352/1944-7558-115.5.381
[Indexed for MEDLINE]

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