Premorbid adjustment in individuals at ultra-high risk for developing psychosis: a case-control study.

Aim: Deterioration in premorbid adjustment is related to ultra-high risk (UHR) individuals developing psychosis, but it has not been examined how UHR individuals' development differs compared to healthy controls. This study investigates differences in premorbid adjustment between UHR individuals and a healthy control group.

Method: A total of 48 UHR individuals and 50 healthy controls matched on group level for age, gender and parents' socio-economic status were included in the study.