Erratum to: J Autism Dev Disord DOI 10.1007/s10803-011-1391-x

We want to report an error in Table 1. ASD prevalence, total and for boys and girls separately in 2-year-olds (n = 5007; 2,569 boys, 2,438 girls).

The total prevalence is correct. Unfortunately, the prevalence rates for boys and girls separately were not correct. The prevalence rates in boys are: autism 0.86%, atypical autism 0.39% and all ASD 1.25%. The prevalence rates in girls are: autism 0.16%, atypical autism 0.16% and all ASD 0.33%.