MedDesk

PHQ-9: depression severity

Neuro & psych scales

Nine DSM-based items over the last two weeks. Public domain. Item 9 (thoughts of death) is a safety question, whatever the total.

What you enter

  • 1. Little interest or pleasure in doing things: Not at all / Several days / More than half the days / Nearly every day
  • 2. Feeling down, depressed, or hopeless: Not at all / Several days / More than half the days / Nearly every day
  • 3. Trouble falling or staying asleep, or sleeping too much: Not at all / Several days / More than half the days / Nearly every day
  • 4. Feeling tired or having little energy: Not at all / Several days / More than half the days / Nearly every day
  • 5. Poor appetite or overeating: Not at all / Several days / More than half the days / Nearly every day
  • 6. Feeling bad about yourself, or that you are a failure: Not at all / Several days / More than half the days / Nearly every day
  • 7. Trouble concentrating on things: Not at all / Several days / More than half the days / Nearly every day
  • 8. Moving or speaking slowly, or being fidgety or restless: Not at all / Several days / More than half the days / Nearly every day
  • 9. Thoughts that you would be better off dead, or of hurting yourself: Not at all / Several days / More than half the days / Nearly every day
FORMULASum of 9 items (0–3 each); 5 / 10 / 15 / 20 = mild / moderate / moderately severe / severe
SourceKroenke K, Spitzer RL, Williams JB. The PHQ-9: validity of a brief depression severity measure. J Gen Intern Med 2001;16:606-13 (instrument is public domain)ReviewedFormula and thresholds checked against the source on 2026-08-22. If the source updates, this line will say so.