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Patient Health Questionnaire

Reference work entry

Definition

PHQ-9 is a nine-item depression scale derived from the Patient Health Questionnaire (PHQ). It assesses symptoms to establish the diagnosis of depression and provides a severity score to help select and monitor treatment.

Keywords

Public Health Social Policy Severity Score Depression Scale Health Questionnaire 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Copyright information

© Springer Science+Business Media LLC 2010

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