Patient Health Questionnaire (PHQ - 9)

This easy to use patient questionnaire is a self-administered version of the PRIME-MD diagnostic instrument for common mental disorders. The PHQ-9 is the depression module, which scores each of the nine DSM-IV criteria as "0" (not at all) to "3" (nearly every day). It has been validated for use in primary care.

It is not a screening tool for depression but it is used to monitor the severity of depression and response to treatment. However, it can be used to make a tentative diagnosis of depression in at-risk populations - eg, those with coronary heart disease or after stroke.

When screening for depression the Patient Health Questionnaire (PHQ-2) can be used first (it has a 97% sensitivity and a 67% specificity). If this is positive, the PHQ-9 can then be used, which has 61% sensitivity and 94% specificity in adults.

Over the last two weeks, how often have you been bothered by any of the following problems ?

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 - or that you are a failure or have let yourself or your family down ?
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 in some way ?


Total = /27