Six of the previously identified 12 loci in the ADHD2019 study14 were significant in the present study (Table 1), and the remaining six loci demonstrated P-values < 8 × 10−4 (Supplementary Table 3). Overall, the direction of association of the top loci (726 loci with P < 1 × 10−4) was consistent with the direction of association in ADHD2019 for all loci but one (Supplementary Table 4).
