Premorbid Characteristics as Predictors of Early Onset Versus Adult Onset in Patients With a First Episode of Psychosis

<b><i>Conclusions:</i></b> Premorbid factors such as OCs, personal psychiatric background, and IQ < 85 could help predict which patients are more likely to have an early onset of psychosis. Awareness of these factors could help clinicians work to prevent the early transition to psychosis in children and adolescents.