What are the MDD diagnostic criteria?

5+ of the following present most of the day nearly everyday for at least 2 weeks 1-depressed mood 2-Loss of interest or pleasure in all activities 3-Significant weight changes 4-Insomnia/Hypersomnia 5-Psychomotor Agitation/Retardation 6-Fatigue 7-Feeling worthlessness guilt 8-Diminished ability to think/concentrate 9-Recurrent thought of death/suicide These symptoms will cause a significant impairment of social, occupational or other important areas of functioning.