Diagnostic Criteria and Clinical Characteristics
Diagnostic Criteria for Unipolar Major Depressive Disorder
Diagnostic evaluation should include five or more of the following symptoms, including depressed mood and/or anhedonia, present for at least two consecutive weeks and causing clinically significant distress or impairment in important areas of functioning (eg, social, occupational, self-care):
Depressed mood: either subjective report (eg, feeling sad or empty) or observation made by others (eg, appears tearful); present most of the day, nearly every day. Note: can be irritable mood in children and adolescents.
Anhedonia: either subjective report or observation made by others of ...