September 1, 2002Psychiatric Annals
The PHQ-9: A New Depression Diagnostic and Severity Measure
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Discussion
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Implication
Validation analysis reveals utility of depression instruments in primary care, indicating consistent severity assessment across tools.
Key Points
- To review and evaluate depression case-finding and severity assessment instruments for primary care and specialty medical settings.
- Comparative analysis of existing depression screening instruments ranging from 2 to 28 items evaluated in general medical practices.
- Depression screening tools provide continuous severity scoring with validated cutpoints that mark a substantially increased probability of major depression.
- Scores across various depression screening measures demonstrate strong correlation, showing no clear evidence of superiority among the different instruments.
Cite This Study
Kroenke et al. (2002) studied this question.