First-order latent variables were modeled for each type of psychiatric disorders: OCD (symptoms (OCD1), impact (OCD2) and band (OCD3)), ED (screening (ED1), symptoms (ED2), impact (ED3) and band (ED4)), BD (frequency (BD1), problem (BD2) and ESPAD composite (BD3)), SA (age of first try composite score (SA1) and cannabis composite score (SA2)), ADHD (symptoms (ADHD1), impact (ADHD2) and band (ADHD3)) and CD (symptoms (CD1), impact (CD2) and band (CD3)). Here, CD2 is linked to attention deficit-hyperactivity disorder.