OBJECTIVE: To test the validity and reliability of the Patient Health Questionnaire-9 (PHQ-9) for diagnosing major depressive disorder (MDD) among persons with traumatic brain injury (TBI). DESIGN: Prospective cohort study. SETTING: Level I trauma center. PARTICIPANTS: 135 adults within 1 year of complicated mild, moderate, or severe TBI. MAIN OUTCOME MEASURES: PHQ-9 Depression Scale, Structured Clinical Interview for Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition (SCID). RESULTS: Using a screening criterion of at least 5 PHQ-9 symptoms present at least several days over the last 2 weeks (with one being depressed mood or anhedonia) maximizes sensitivity (0.93) and specificity (0.89) while providing a positive predictive value of 0.63 and a negative predictive value of 0.99 when compared to SCID diagnosis of MDD. Pearson's correlation between the PHQ-9 scores and other depression measures was 0.90 with the Hopkins Symptom Checklist depression subscale and 0.78 with the Hamilton Rating Scale for Depression. Test-retest reliability of the PHQ-9 was r = 0.76 and kappa = 0.46 when using the optimal screening method. CONCLUSIONS: The PHQ-9 is a valid and reliable screening tool for detecting MDD in persons with TBI.
OBJECTIVE: To test the validity and reliability of the Patient Health Questionnaire-9 (PHQ-9) for diagnosing major depressive disorder (MDD) among persons with traumatic brain injury (TBI). DESIGN: Prospective cohort study. SETTING: Level I trauma center. PARTICIPANTS: 135 adults within 1 year of complicated mild, moderate, or severe TBI. MAIN OUTCOME MEASURES: PHQ-9 Depression Scale, Structured Clinical Interview for Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition (SCID). RESULTS: Using a screening criterion of at least 5 PHQ-9 symptoms present at least several days over the last 2 weeks (with one being depressed mood or anhedonia) maximizes sensitivity (0.93) and specificity (0.89) while providing a positive predictive value of 0.63 and a negative predictive value of 0.99 when compared to SCID diagnosis of MDD. Pearson's correlation between the PHQ-9 scores and other depression measures was 0.90 with the Hopkins Symptom Checklist depression subscale and 0.78 with the Hamilton Rating Scale for Depression. Test-retest reliability of the PHQ-9 was r = 0.76 and kappa = 0.46 when using the optimal screening method. CONCLUSIONS: The PHQ-9 is a valid and reliable screening tool for detecting MDD in persons with TBI.
Authors: Michelle D Failla; John M Myrga; Joseph H Ricker; C Edward Dixon; Yvette P Conley; Amy K Wagner Journal: J Head Trauma Rehabil Date: 2015 Nov-Dec Impact factor: 2.710
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Authors: Shannon B Juengst; Leah M Adams; Jennifer A Bogner; Patricia M Arenth; Therese M O'Neil-Pirozzi; Laura E Dreer; Tessa Hart; Thomas F Bergquist; Charles H Bombardier; Marcel P Dijkers; Amy K Wagner Journal: Rehabil Psychol Date: 2015-11