Erratum to: Eur Child Adolesc Psychiatry DOI 10.1007/s00787-015-0703-7

The published version of the paper has stated the coding direction of the ancestry factor scores incorrectly. Higher levels of the ancestry factor scores actually indicate higher levels of non-Hispanic Caucasian ancestry (not higher levels of Hispanic ancestry as was stated in the “Adolescent ancestry” section). Therefore, under the “Participants” section, it should state that the included participants had higher levels of non-Hispanic Caucasian ancestry when compared with excluded participants. Under the “Results” section, it should state that Hispanic ancestry predicted higher T2 alcohol problems and hyperactive–inattentive symptoms.