Which tool is commonly used for screening depression?

The Patient Health Questionnaire (PHQ-9) is a widely used tool specifically designed for screening and diagnosing depression. It consists of nine questions that assess the presence and severity of depressive symptoms based on the criteria from the Diagnostic and Statistical Manual of Mental Disorders (DSM). The items focus on the frequency of symptoms such as depressed mood, loss of interest or pleasure, changes in appetite, sleep disturbances, fatigue, feelings of worthlessness, and difficulty concentrating.

The PHQ-9 is valuable because it not only screens for depression but also helps in monitoring treatment response over time, making it applicable in various healthcare settings. Its simplicity and quick administration allow for effective use in primary care, mental health, and various clinical practices.

In contrast, the other tools mentioned serve different purposes. The GAD-7 is specifically for screening generalized anxiety disorder, the AUDIT assesses alcohol use and potential dependence, and the Beck Depression Inventory, while also measuring depression symptoms, is more focused on the depth of the depression rather than initial screening. Therefore, the PHQ-9 is the most appropriate tool for identifying individuals who may be suffering from depression, contributing to better diagnosis and treatment planning.