Patient Health Questionnaire-8.

PHQ-8

What it measures

Depression severity (past 2 weeks); PHQ-9 minus the suicidal-ideation item, for settings where suicide follow-up is impractical (large epidemiology/telephone surveys)

Length and format

8 items. 4-point frequency (0-3), summed 0-24 (self-report questionnaire)

Language versions

Inherits the PHQ multi-language set (80+ languages); used across international population surveys

Normative data

No normative data held in our reference library for this instrument. That is a statement about our library, not about the published literature.

Licence

public-domain / open

Licence classification is a research judgement by the catalogue’s authors, not legal advice, and it can be out of date. Confirm terms with the copyright holder or publisher before using an instrument, especially for commercial use.

Reference

Kroenke, K., Strine, T. W., Spitzer, R. L., Williams, J. B. W., Berry, J. T., & Mokdad, A. H. (2009). The PHQ-8 as a measure of current depression in the general population. Journal of Affective Disorders, 114(1-3), 163-173.