Clinical Validation of the Rating Scale for Psychotic Depression (RAS-PD)

The aim of this study is to develop a scale to measure the severity of depression with psychotic symptoms (psychotic depression). Furthermore, we hope to detect potential biomarkers (substances in the blood) which can aid in the detection of psychotic depression.

Main hypothesis: A clinically valid rating scale measuring the severity of psychotic depression can be developed.

Inclusion Criteria:

• Fulfilling ICD-10 criteria DF32.3 or DF33.3
• At least 18 years old
• Legally competent
• Informed consent (oral & written)

Exclusion Criteria:

• Insufficient Danish Language skills
• Moderate to severe dementia
• Abuse of psychoactive substances