Phq-9 Depression Screening Calculator

The PHQ-9 is a 9-item self-report screener for depression severity, developed by Kroenke, Spitzer and Williams and validated in over 6,000 primary care patients. Each item scores 0-3 based on symptom frequency over the past two weeks, giving a total from 0 to 27, interpreted as minimal, mild, moderate, moderately severe, or severe.

Calculate phq-9 depression screening quickly and accurately. Enter your values and get instant results with this free online calculator.

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

1.Little interest or pleasure in doing things
2.Feeling down, depressed, or hopeless
3.Trouble falling or staying asleep, or sleeping too much
4.Feeling tired or having little energy
5.Poor appetite or overeating
6.Feeling bad about yourself — or that you are a failure or have let yourself or your family down
7.Trouble concentrating on things, such as reading the newspaper or watching television
8.Moving or speaking so slowly that other people could have noticed? Or the opposite — being so fidgety or restless that you have been moving around a lot more than usual
9.Thoughts that you would be better off dead or of hurting yourself in some way

This tool screens for depressive symptoms; it does not diagnose depression or any other condition. Only a qualified health professional can do that, using this score alongside your full clinical picture.

Sources

  1. American Psychological Association — official PHQ-9 instrument (PDF)
  2. AHRQ Academy — PHQ-9 instrument (PDF)
  3. Kroenke K, Spitzer RL. The PHQ-9: A New Depression Diagnostic and Severity Measure. Psychiatric Annals (PDF)
  4. U.S. Preventive Services Task Force — PHQ-9 scoring card (PDF)
  5. Pfizer — free public access to the PHQ and GAD-7 assessment tools
  6. 988 Suicide & Crisis Lifeline (United States)
  7. Samaritans — 116 123 (UK & Ireland)
  8. Find A Helpline — crisis lines in 175+ countries