Depression Questionnaire

The Patient Health Questionnaire is a multiple-choice self-report inventory copyrighted by Pfizer Inc, that is used as a screening and diagnostic tool for mental health disorders of depression, anxiety, alcohol, eating, and somatoform disorders. It is the self-report version of the Primary Care Evaluation of Mental Disorders, a diagnostic tool developed in the mid-1990s by Pfizer Inc. The length of the original assessment limited its feasibility; consequently, a shorter version, consisting of 11 multi-part questions – the Patient Health Questionnaire was developed and validated.

Little interest or pleasure in doing things


Feeling down, depressed, or hopeless


Trouble falling or staying asleep, or sleeping too much


Feeling tired or having little energy


Poor appetite or overeating


Feeling bad about yourself


Trouble concentrating on things, such as reading the newspaper or watching television


Moving or speaking so slowly that other people could have noticed.   Or the opposite – being so fidgety or restless that you have been moving around a lot more than usual.


Thoughts that you would be better off dead, or of hurting yourself