The PHQ-9 (Patient Health Questionnaire-9) objectifies and assesses degree of depression severity via questionnaire.

Developed by Drs. Robert L. Spitzer, Janet B.W. Williams, Kurt Kroenke and colleagues, with an educational grant from Pfizer Inc. No permission required to reproduce, translate, display or …

Nov 18, 2025 · Learn what it is, how it helps assess depression, and how you can use the results to track symptoms, monitor progress, and guide treatment decisions. The PHQ-9 is a 9-item …

Patient Health Questionnaire-9 (PHQ-9) Share The PHQ-9 is a multipurpose instrument for screening, diagnosing, monitoring and measuring the severity of depression.

PHQ-9* Questionnaire for Depression Scoring and Interpretation Guide Scoring: Count the number (#) of boxes checked in a column. Multiply that number by the value indicated below, …

We investigated responsiveness to treatment, reproducibility, and minimal clinically important difference of the Patient Health Questionnaire-9 (PHQ-9), a standard instrument for …

If more than 1 item missing, set the value of the scale to missing. A score of 15 or greater is considered major depression, 20 or more is severe major depression.

Use the table below to interpret the PHQ-9 score. Total Score. 14 Warrants treatment for depression, using antidepressant, psychotherapy and/or a combination of treatment.

The PHQ-9 is the nine item depression scale from the Patient Health Questionnaire, and is a widely used tool for assisting primary care clinicians in identifying depression as well as …

A depression diagnosis that warrants treatment or treatment change, needs at least one of the first two questions endorsed as positive (little pleasure, feeling depressed) indicating the …