We have located links that may give you full text access.
COMPARATIVE STUDY
JOURNAL ARTICLE
RESEARCH SUPPORT, N.I.H., EXTRAMURAL
VALIDATION STUDIES
Validity of the Patient Health Questionnaire-9 in assessing depression following traumatic brain injury.
Journal of Head Trauma Rehabilitation 2005 November
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.
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.
Full text links
Related Resources
Get seemless 1-tap access through your institution/university
For the best experience, use the Read mobile app
All material on this website is protected by copyright, Copyright © 1994-2024 by WebMD LLC.
This website also contains material copyrighted by 3rd parties.
By using this service, you agree to our terms of use and privacy policy.
Your Privacy Choices
You can now claim free CME credits for this literature searchClaim now
Get seemless 1-tap access through your institution/university
For the best experience, use the Read mobile app