Psychiatry Free

PHQ-9

Patient Health Questionnaire for depression screening.

Enter Values

Little interest or pleasure in doing things

Feeling down, depressed, or hopeless

Trouble falling/staying asleep or sleeping too much

Feeling tired or having little energy

Poor appetite or overeating

Feeling bad about yourself

Trouble concentrating

Moving or speaking slowly / being fidgety

Thoughts of self-harm

Score

Author Kurt Kroenke and Robert L. Spitzer

First Published 2001

Evidence Guideline-endorsed (USPSTF)

Category Psychiatry

Original Study The PHQ-9: validity of a brief depression severity measure (J Gen Intern Med, 2001)

About The Patient Health Questionnaire-9 screens for and measures severity of depression based on DSM criteria.

Clinical Use Adult depression screening and monitoring. Not diagnostic by itself; confirm with clinical interview.