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Table 2 GEE model results

From: Non-verbal IQ and change in restricted and repetitive behavior throughout childhood in autism: a longitudinal study using the Autism Diagnostic Interview-Revised

ADI-R item

Wald χ2 (14) = 624.32, p < 0.001

Site

Wald χ2(4) = 25.87, p < 0.001

Age at enrollment

Wald χ2( 1) =  < 0.01, p = 0.989

Age

Wald χ2(1) = 28.40, p < 0.001

NVIQ

Wald χ2(1) = 2.70, p = 0.101

ADI-R item * Age

Wald χ2 (14) = 160.74, p < 0.001

ADI-R item * NVIQ

Wald χ2 (14) = 30.22, p = 0.007

ADI-R item * Age * NVIQ

Wald χ2(15) = 32.60, p = 0.005

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Molecular Autism

ISSN: 2040-2392