PHQ-9 Depression Screening
Patient Health Questionnaire
Validated 9-question screener for depression severity. Widely used in primary care and mental health.
PHQ-9 Depression Screening
Over the last 2 weeks, how often have you been bothered by any of the following problems?
About the PHQ-9
The PHQ-9 is derived from the DSM criteria for major depressive disorder. It asks about the frequency of 9 symptoms over the past 2 weeks: anhedonia, depressed mood, sleep disturbance, fatigue, appetite changes, guilt/worthlessness, concentration difficulty, psychomotor changes, and suicidal ideation.
Clinical Use
The PHQ-9 is recommended by the U.S. Preventive Services Task Force (USPSTF) for universal depression screening in adults. It has a sensitivity of 88% and specificity of 88% for detecting major depression at a cutoff score of 10.
PHQ-9 Severity Thresholds
Medical Disclaimer
This screening tool is for informational purposes only and does not constitute a clinical diagnosis. If you are experiencing symptoms of depression or having thoughts of self-harm, please contact a healthcare provider, call 988 (Suicide & Crisis Lifeline), or go to your nearest emergency room.