Work out depression score (phq 9) instantly with clear inputs, formula shown and shareable results.
Adds the nine PHQ-9 items, each scored 0 to 3 for the past two weeks, and applies the published severity bands.
PHQ-9 bands
0-4 minimal, 5-9 mild, 10-14 moderate, 15-19 moderately severe, 20-27 severe
Educational estimate only. Not a substitute for professional clinical judgement, and must not be used to make treatment or dosing decisions.
10 or more has a sensitivity and specificity of about 88% for major depressive disorder.
Yes. Any positive response to the self-harm item requires immediate risk assessment regardless of total score.