PHQ-9

Overview
Some text about the history or how this test came about

Interpretation
Summed Scored Method > 10 indicative of Major Depression Disorder1

Meta Analysis:
Case finding and screening clinical utility of the Patient Health Questionnaire (PHQ-9 and PHQ-2) for depression in primary care: a diagnostic meta-analysis of 40 studies.

The PHQ can be used as an initial first step assessment in primary care and the PHQ-2 is adequate for this purpose with good acceptability. However, neither the PHQ-2 nor the PHQ-9 can be used to confirm a clinical diagnosis (case finding).

Overall, 26 publications reporting on 40 individual studies were included representing 26 902 people (median 502, s.d.=693.7) including 14 760 unique adults of whom 14.3% had MDD.

British Journal of Psychiatry Open Mar 2016, 2 (2) 127-138; DOI: 10.1192/bjpo.bp.115.001685

What conditions is it intended to measure
Depression

Based On
Whatever surveys the questions from this survey was taken from was taken from