Diagnostic Conversion From Psychotic Unipolar Depression to Bipolar and Psychotic Disorders: A Swedish Registry‐Based Study

Approximately 20%-30% of patients diagnosed with psychotic depression in secondary care in Sweden are expected to receive a subsequent diagnosis of a bipolar or psychotic disorder within 17 years. This has important clinical implications, as prognosis and treatment strategies differ between these conditions. Further research is needed to identify risk factors for diagnostic conversion to improve early detection and management.