The validity of the patient health Questionnaire-9 to screen for depression in patients with type-2 diabetes mellitus in non-communicable diseases clinics in Malawi

BMC Psychiatry
Michael Mphatso UdediBrian W Pence

Abstract

Depression is a global problem, affecting populations worldwide, but is too often under-diagnosed. The identification of depression among patients with diabetes is important because depression is prevalent in this group and can complicate diabetes management. The aim of the study was to determine the sensitivity and specificity of the PHQ-9 in the detection of depression among patients with type-2 diabetes mellitus attending non-communicable diseases (NCD) clinics in Malawi. We conducted a validation study of the Patient Health Questionnaire (PHQ-9) among 323 patients with type-2 diabetes mellitus who attended two NCD clinics in one of the 28 districts of Malawi. The participants were screened consecutively using the nine-item PHQ-9 in Chichewa by a research assistant and completed a diagnostic interview using the Structured Clinical Interview for DSM-IV (SCID) for depression with a mental health clinician. We evaluated both content validity based on expert judgement and criterion validity of the Patient Health Questionnaire (PHQ-9) based on performance against the SCID. The PHQ-9 cutpoint that maximized sensitivity plus specificity was selected to report test characteristics. Using the SCID for depression, the prevalence of mi...Continue Reading

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Citations

Jul 14, 2020·Global Health Action·Ashley MooreDebarati Guha-Sapir
Dec 10, 2020·Psychiatric Services : a Journal of the American Psychiatric Association·Bradley N GaynesBrian W Pence
Sep 4, 2020·AIDS and Behavior·Corrina MoucheraudRisa M Hoffman
May 11, 2021·African Journal of Primary Health Care & Family Medicine·Keneilwe MotlhatlhediGrace N Wambua
Aug 17, 2021·Journal of Medical Internet Research·Priscilla Jia Ling WeeLian Leng Low
Oct 12, 2021·Journal of Affective Disorders Reports·Honor ScarlettMaria Melchior

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