PHQ-9

Patient Health Questionnaire

The intensity of depressive symptoms experienced over the past two weeks.

Format

A 9-item self-report questionnaire scored 0 to 3; the total (0 to 27) grades severity and is repeated to track change.

Origin

Developed by Kroenke, Spitzer and Williams in the late 1990s; one of the most widely used tools in measurement-based care.

Related therapies

Other contexts of use

Soins fondés sur la mesure