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May 5, 2021BMC PsychiatryOpen Access

Bidimensional structure and measurement equivalence of the Patient Health Questionnaire-9: sex-sensitive assessment of depressive symptoms in three representative German cohort studies

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Why the study?

Studies testing alternative model structures of the PHQ-9 supported a two-dimensional structure of somatic and cognitive-affective symptoms rather than a single latent factor.

Population

Participants from three representative German cohort studies in the GESA consortium

Comparison

Comparison between sexes and cohorts across somatic and cognitive-affective dimensions

Design

Multi-cohort study

Authors

ATAna N. TibubosDODaniëlle OttenDZDaniela Zöller

Discussion

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Overview

Supports PHQ-9 bidimensional scoring across sexes and cohorts; leaves generalizability and clinical utility open.

Structured PICO

P
Population
19,504 participants from three major longitudinal cohorts in Germany (Gutenberg Health Study [GHS], Cooperative Health Research in the Augsburg Region [KORA], and Study of Health in Pomerania [SHIP]), mean age 55.5, 9,813 females and 9,691 males.
O
Outcome
Factor structure and measurement invariance of the Patient Health Questionnaire-9 (PHQ-9)patient reported

The PHQ-9 exhibits a bidimensional structure (somatic and cognitive-affective) that is measurement invariant across sex and regional German cohorts, supporting the assessment of these two distinct facets of depression.

Cite This Study

Tibubos et al. (2021) studied this question.

synapsesocial.com/papers/6a835f75f94fbaec1e1325cahttps://doi.org/10.1186/s12888-021-03234-x
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Also Consider

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