Since the initiation of the iPSYCH2012 sample, other related Danish projects have built on the same framework as that used within iPSYCH, for example, anorexia (5703 cases), obsessive-compulsive disorder (7747 cases), conduct disorder (4205 cases), hyperkinetic conduct disorder (3690 cases) and 1546 twin pairs. All samples gain power in utilizing cohort members within the iPSYCH2012 sample, while also contributing to the unique possibilities of the iPSYCH2012 sample.
