Over the last 2 weeks, how often have you been bothered by any of the following problems?
Report details · optional
Shown on the report and stored with the screening record. Use initials or a code, not full names.
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About this screener — evidence, source, alternatives
Nine items scoring each DSM depressive symptom from 0 to 3 over the last two weeks, plus a functional difficulty question. Used for screening, severity grading, and monitoring response to treatment, including in pregnancy and after birth, where it is one of the screens ACOG lists for perinatal depression.
Evidence · validated
At a cut-off of ≥ 10, sensitivity and specificity were both 88% for major depression in the original primary-care validation (Kroenke et al., 2001). Extensively validated across languages and settings, and in adolescents (12+).
Free alternative to
- Beck Depression Inventory-II (BDI-II) · Pearson
Paid depression severity inventory; the PHQ-9 is the free, criteria-based alternative used in most primary care.
Source & licence
Kroenke K, Spitzer RL, Williams JBW. The PHQ-9: validity of a brief depression severity measure. J Gen Intern Med. 2001;16(9):606–613. Developed by Drs Robert L. Spitzer, Janet B.W. Williams, Kurt Kroenke and colleagues, with an educational grant from Pfizer Inc.
Licence: Free — no permission required to reproduce, translate, display or distribute
Official source ↗