Over the last 2 weeks, how often have you been bothered by any of the following problems?
(Healthcare professional: For interpretation of TOTAL, please refer to accompanying scoring card).
For initial diagnosis:
Note: Since the questionnaire relies on patient self-report, all responses should be verified by the clinician, and a definitive diagnosis is made on clinical grounds taking into account how well the patient understood the questionnaire, as well as other relevant information from the patient.
Diagnoses of Major Depressive Disorder or Other Depressive Disorder also require impairment of social, occupational, or other important areas of functioning (Question #10) and ruling out normal bereavement, a history of a Manic Episode (Bipolar Disorder), and a physical disorder, medication, or other drug as the biological cause of the depressive symptoms.
To monitor severity over time for newly diagnosed patients or patients in current treatment for depression:
Scoring: add up all checked boxes on PHQ-9
For every check Not at all = 0; Several days = 1; More than half the days = 2; Nearly every day = 3
Interpretation of Total Score
Total Score
Depression Severity
1-4
Minimal depression
5-9
Mild depression
10-14
Moderate depression
15-19
Moderately severe depression
20-27
Severe depression
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