Patient Health Questionnaire-2
An ultra-brief first-stage screen; a positive result routes to the PHQ-9.
Complete it
Over the last 2 weeks, how often have you been bothered by the following?
Little interest or pleasure in doing things
Feeling down, depressed, or hopeless
Psychometrics
A cut-point of 3 gives sensitivity around 0.83 and specificity around 0.90 for major depression. Designed as the first stage of a two-stage screen, not as a severity measure.
Cautions and misuse
Never use as a stand-alone outcome measure — two items cannot track change with adequate precision. Its only sound use is triage.
Sources
Kroenke, K., Spitzer, R. L., & Williams, J. B. W. (2003). The Patient Health Questionnaire-2: Validity of a two-item depression screener. Medical Care, 41(11), 1284–1292
measure