Dataset Information

Psychometric Properties of the Patient Health Questionnaire-9 Modified for Major Depressive Disorder in Adolescents.

ABSTRACT:

Objectives

The Patient Health Questionnaire-9 Modified (PHQ-9M) is a self-report tool used to assess the presence and severity of depressive symptoms in teenagers. Despite widespread use in primary care clinics and psychiatric settings, the PHQ-9M has not been validated nor are its psychometric properties adequately understood for the adolescent population. This study sought to examine the psychometrics of the PHQ-9M in treatment-seeking, depressed adolescents at a psychiatric psychopharmacology clinic who were concurrently assessed with the Children's Depression Rating Scale Revised (CDRS-R) and Quick Inventory of Depressive Symptomatology-Adolescent (17-item) Self-Report (QIDS-A17-SR).

Methods

Adolescents (N?=?160) aged 13 through 18 years with a diagnosis of major depressive disorder, determined on the basis of a clinical interview and semi-structured interview using the Kiddie Schedule for Affective Disorders and Schizophrenia-Present and Lifetime Version, were assessed for severity of depressive symptoms with the PHQ-9M, CDRS-R (adolescent interview only), and QIDS-A17-SR assessments at baseline, 4, and 8 weeks. Classical test theory analysis was used to evaluate the internal consistency and dimensionality of the PHQ-9M. Convergent validity was evaluated via intraclass correlations of the PHQ-9M with the CDRS-R and QIDS-A17-SR. Sensitivity to treatment response was also evaluated.

Results

The internal consistency (Cronbach's coefficient ?) at baseline, 4, and 8 weeks was 0.879, 0.859, and 0.827 for the PHQ-9M; 0.739, 0.835, and 0.867 for CDRS-R; and 0.712, 0.777, and 0.804 for QIDS-A17-SR, respectively. The PHQ-9M had moderate convergent validity with the CDRS-R but good convergent validity with the QIDS-A17-SR. The PHQ-9M was less sensitive to changes in symptom severity than the CDRS-R and QIDS-A17-SR.

Conclusions

The PHQ-9M appears to be a valid and reliable assessment tool for the severity of depressive symptoms in a psychiatric clinic setting. However, its utility as a treatment outcome measure may be limited compared with other available rating scales.

SUBMITTER: Nandakumar AL

PROVIDER: S-EPMC6354604 | biostudies-literature | 2019 Feb

REPOSITORIES: biostudies-literature

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Publications

Psychometric Properties of the Patient Health Questionnaire-9 Modified for Major Depressive Disorder in Adolescents.

Nandakumar Aiswarya Laks AL Vande Voort Jennifer L JL Nakonezny Paul A PA Orth Scott S SS Romanowicz Magdalena M Sonmez Ayse Irem AI Ward Jessica A JA Rackley Sandra J SJ Huxsahl John E JE Croarkin Paul E PE

Journal of child and adolescent psychopharmacology 20181102 1

<h4>Objectives</h4>The Patient Health Questionnaire-9 Modified (PHQ-9M) is a self-report tool used to assess the presence and severity of depressive symptoms in teenagers. Despite widespread use in primary care clinics and psychiatric settings, the PHQ-9M has not been validated nor are its psychometric properties adequately understood for the adolescent population. This study sought to examine the psychometrics of the PHQ-9M in treatment-seeking, depressed adolescents at a psychiatric psychophar ...[more]

PMID: 30388048

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Dataset Information

Psychometric Properties of the Patient Health Questionnaire-9 Modified for Major Depressive Disorder in Adolescents.

Objectives

Methods

Results

Conclusions

Publications

Psychometric Properties of the Patient Health Questionnaire-9 Modified for Major Depressive Disorder in Adolescents.

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