Accuracy of Patient Health Questionnaire-9 (PHQ-9) for screening to detect major depression: individual participant data meta-analysis

Short summary

A meta-analysis of individual participant data (n=17,357) found the PHQ-9 screening tool has a sensitivity of 0.88 and specificity of 0.85 for detecting major depression when using a cut-off score of 10 or above with semistructured diagnostic interviews.

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