note that the study website contains details of all the data that is available through a fully searchable data dictionary and variable search tool (http://www.bristol.ac.uk/alspac/researchers/our-data/). Study data were collected and managed using REDCap electronic data capture tools hosted at the University of Bristol (Harris et al. 2009). REDCap (Research Electronic Data Capture) is a secure, web-based software platform designed to support data capture for research studies. Ethical approval for the study was obtained from the ALSPAC Ethics and Law Committee and the Local Research Ethics Committees (http://www.bristol.ac.uk/alspac/researchers/research-ethics/). Informed consent for the use of data collected via questionnaires and clinics was obtained from participants following the recommendations of the ALSPAC Ethics and Law Committee at the time. The current work focuses on offspring assessments in adolescence and early adulthood. Reports between ages 12-17 (n=5,382, 53.57% female) were collected at ages 12.5, 13.5, 15.5, 16, and 17.5 from offspring. Reports between ages 18-25 (n=3613, 60.75% female) were collected at ages 18 and 20 from offspring.
