These problems with the DSM-IV schizoaffective disorder definition result in most people the diagnosis is used on being misdiagnosed; furthermore, outcome studies done 10 years after the diagnosis was released showed that the group of patients defined by the DSM-IV and ICD-10 schizoaffective diagnosis had significantly better outcomes than predicted, so the diagnosis carries a misleading and unnecessarily poor prognosis. The DSM-IV criteria for schizoaffective disorder will continue to be used on U.S. board examinations in psychiatry through the end of 2014; established practitioners may continue to use the problematic DSM-IV definition much further into the future also.