366 children with ADHD and 1047 controls with high-quality SNP array data were included in the final analysis. Children with ADHD (316 boys, 50 girls) had a mean age of 10·5 years (range 5–17; SD 2·72) and a mean IQ of 86 (range 43–123; SD 13·89). 33 participants with intellectual disability (IQ <70, n=33, mean IQ=60) were identified. After exclusion of common (minor allele frequency >0·01) CNVs, all association analyses included the remaining 135 rare CNVs larger than 500 kb (57 in patients and 78 in controls; table 1 and webappendix p 2).
