The PHQ-9: validity of a brief depression severity measure.

By K. Kroenke, R. Spitzer, Janet B W Williams. Journal of general internal medicine, 2001

22,990 citations recorded by the source corpus.

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Citations in the corpus

A Reengineered Hospital Discharge Program to Decrease Rehospitalization (2009, methodology): “** Determined by using the Patient Health Questionnaire-9, a 9-item, 4-point Likert scale, standard scoring algorithm to screen for major and minor depression (31). www.annals.org 3 February 2009 Annals of Internal Medicine Volume 150 • Number 3 183 $412 544 for the usual care group and $268 942 for”
Patients presenting with somatic complaints: epidemiology, psychiatric co‐morbidity and management (2003, methodology): “If evaluation of depression is the primary aim, the nine-item depression module (PHQ-9) alone can be used as a diagnostic and monitoring tool (Kroenke et al., 2001).”
Network Analysis of Depression and Anxiety Symptom Relations in a Psychiatric Sample (2016, methodology): “MDD and GAD symptoms were assessed via the Patient Health Questionnaire-9 (PHQ-9; Kroenke et al. 2001) and the 7-item Generalized Anxiety Disorder Scale (GAD-7; Spitzer et al. 2006), self-report measures of depression and anxiety symptom severity, respectively, over the prior 2 weeks.”
Claremont Purpose Scale: A Measure that Assesses the Three Dimensions of Purpose among Adolescents (2018, methodology): “This scale had excellent reliability in its initial validation study (α = .89; Kroenke et al., 2001) and in this study (α = .90).”
An ultra-brief screening scale for anxiety and depression: the PHQ-4. (2009, background): “construct, and procedural validity for depressive disorders.(11) Similar reliability and validity have been estab-”
Measurement and Conceptualization of Gaming Disorder According to the World Health Organization Framework: the Development of the Gaming Disorder Test (2019, methodology): “The PHQ-9 has been used as a screening and diagnostic tool and as an outcome measure in both Chinese- and English-speaking samples and displayed excellent psychometric properties (e.g., Merz et al. 2011; Tsai et al. 2014).”
Harnessing Context Sensing to Develop a Mobile Intervention for Depression (2011, methodology): “Intent-to-treat analyses revealed that depressive symptoms self-reported on the PHQ-9 decreased significantly over time, t13 = 7.02, betaweek = –.82, P .001.”
CBT for depression: a pilot RCT comparing mobile phone vs. computer (2013, background): “The PHQ-9 has been shown to have good sensitivity and specificity [26] and excellent reliability and validity [24].”
Measures of depression and depressive symptoms: Beck Depression Inventory‐II (BDI‐II), Center for Epidemiologic Studies Depression Scale (CES‐D), Geriatric Depression Scale (GDS), Hospital Anxiety and Depression Scale (HADS), and Patient Health Questionnaire‐9 (PHQ‐9) (2011, background): “The 9 items on the PHQ-9 consist of the 9 criteria on which the Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition (DSM-IV) depressive disorder diagnoses are based (53).”