PHQ-9 Questionnaire

The Patient Health Questionnaire-9 (PHQ-9) is used to screen for depression and also gives an indication of depression severity.

Over the last 2 weeks, how often have you been bothered by the following problems?

Name :

Summary of the PHQ-9 questionnaire

Interpretation:

0–4: None or minimal depression
5–9: Mild depression
10–14: Moderate depression
15–19: Moderately severe depression
20 and over: Severe depression

Kroenke, K., Spitzer, R. L. et Williams, J. B. W. (2001). The PHQ-9: Validity of a brief depression severity measure. J Gen Intern Med, 16(9), 606-613.
Kroenke, K. et Spitzer, R. L. (2002). The PHQ-9 : A new depression diagnostic and severity measure. Psychiatric Annals, 32(9), 509-515.