debts.QAInformation that will be collected from the offspring of the TRAILS cohort (starting January 2015) is not included in this overview.aQ, questionnaire; I, interview; P, physical examination (anthropomorphic measures; physiological measures; biomarkers); T, neuropsychological or behavioural test; R, registry-based; O, observation.bA, adolescent; P, parent; T, teacher; C, classmates; R, romantic partner; S, sibling; I, interviewer.cDeveloped by TRAILS or composed from other instruments.dAssessed in a high-risk subsample.eOnly assessed in the population cohort.