Accuracy of Patient Health Questionnaire-9 (PHQ-9) for screening to detect major depression: individual participant data meta-analysis

DEPRESsion Screening Data (DEPRESSD) Collaboration, Dickens Akena, Bruce Arroll, Liat Ayalon, Marleine Azar, Hamid R Baradaran, Murray Baron, Andrea Benedetti, Charles H Bombardier, Jill Boruff, Peter Butterworth, Gregory Carter, Marcos H Chagas, Juliana C N Chan, Matthew J Chiovitti, Kerrie Clover, Yeates Conwell, Pim Cuijpers, Janneke M de Man-van Ginkel, Jaime DelgadilloJesse R Fann, Felix H Fischer, Daniel Fung, Bizu Gelaye, Simon Gilbody, Felicity Goodyear-Smith, Catherine G Greeno, Brian J Hall, John Hambridge, Patricia A Harrison, Martin Härter, Ulrich Hegerl, Leanne Hides, Stevan E Hobfoll, Marie Hudson, Masatoshi Inagaki, John P.A. Ioannidis, Khalida Ismail, Nathalie Jetté, Mohammad E Khamseh, Kim M Kiely, Lorie A Kloda, Yunxin Kwan, Alexander W Levis, Brooke Levis, Shen-Ing Liu, Manote Lotrakul, Sonia R Loureiro, Bernd Löwe, Laura Marsh, Anthony McGuire, Dean McMillan, Sherina Mohd Sidik, Tiago N Munhoz, Kumiko Muramatsu, Flávia L Osório, Vikram Patel, Scott B Patten, Brian W Pence, Philippe Persoons, Angelo Picardi, Danielle B Rice, Kira E Riehm, Katrin Reuter, Alasdair G Rooney, Nazanin Saadat, Tatiana A Sanchez, Iná S Santos, Juwita Shaaban, Abbey Sidebottom, Adam Simning, Ian Shrier, Lesley Stafford, Sharon C Sung, Pei Lin Lynnette Tan, Brett D Thombs, Alyna Turner, Christina Maria Van Der Feltz-Cornelis, Henk C P M van Weert, Paul A Vöhringer, Jennifer White, Mary A Whooley, Kirsty Winkley, Mitsuhiko Yamada, Roy C Ziegelstein, Yuying Zhang

Research output: Contribution to journalArticlepeer-review

Abstract

OBJECTIVE: To determine the accuracy of the Patient Health Questionnaire-9 (PHQ-9) for screening to detect major depression.

DESIGN: Individual participant data meta-analysis.

DATA SOURCES: Medline, Medline In-Process and Other Non-Indexed Citations, PsycINFO, and Web of Science (January 2000-February 2015).

INCLUSION CRITERIA: Eligible studies compared PHQ-9 scores with major depression diagnoses from validated diagnostic interviews. Primary study data and study level data extracted from primary reports were synthesized. For PHQ-9 cut-off scores 5-15, bivariate random effects meta-analysis was used to estimate pooled sensitivity and specificity, separately, among studies that used semistructured diagnostic interviews, which are designed for administration by clinicians; fully structured interviews, which are designed for lay administration; and the Mini International Neuropsychiatric (MINI) diagnostic interviews, a brief fully structured interview. Sensitivity and specificity were examined among participant subgroups and, separately, using meta-regression, considering all subgroup variables in a single model.

RESULTS: Data were obtained for 58 of 72 eligible studies (total n=17 357; major depression cases n=2312). Combined sensitivity and specificity was maximized at a cut-off score of 10 or above among studies using a semistructured interview (29 studies, 6725 participants; sensitivity 0.88, 95% confidence interval 0.83 to 0.92; specificity 0.85, 0.82 to 0.88). Across cut-off scores 5-15, sensitivity with semistructured interviews was 5-22% higher than for fully structured interviews (MINI excluded; 14 studies, 7680 participants) and 2-15% higher than for the MINI (15 studies, 2952 participants). Specificity was similar across diagnostic interviews. The PHQ-9 seems to be similarly sensitive but may be less specific for younger patients than for older patients; a cut-off score of 10 or above can be used regardless of age..

CONCLUSIONS: PHQ-9 sensitivity compared with semistructured diagnostic interviews was greater than in previous conventional meta-analyses that combined reference standards. A cut-off score of 10 or above maximized combined sensitivity and specificity overall and for subgroups.

REGISTRATION: PROSPERO CRD42014010673.

Original languageEnglish
Article numberl1476
JournalBMJ
Volume365
DOIs
Publication statusPublished - 9 Apr 2019

Bibliographical note

© 2019, British Medical Journal Publishing Group

Cite this