Expert Comments on Available Evidence
The DEPRESSD Project
A Unique and Rigorous Data Platform for Depression Screening Research
Study Protocols Published on Open Science Framework
Qiu L, Parsons M, Levis B, Fan S, Sun Y, Amiri L, Harel D, Markham S, Vigod SN, Ziegelstein RC, Wu Y, Cuijpers P, Gilbody S, Patten SB, Benedetti A, Thombs BD. Depression prevalence based on the 15-item Geriatric Depression Scale compared to Structured Clinical Interview for DSM classification: Protocol for a systematic review and individual participant data meta-analysis. Open Science Framework. October 05, 2022. https://osf.io/bjaz7
Wu Y, Gonzalez-Dominguez NP, Levis B, Fan S, Sun Y, Gilbody S, Ioannidis JPA, Harel D, Vigod SN, Markham S, Ziegelstein RC, Cuijpers P, Patten SB, Benedetti A, Thombs BD. Minimal clinically important difference of the PHQ-9, HADS-D, EPDS, and GDS depression symptom scales: protocol for a systematic review and individual participant data meta-analysis. Open Science Framework. September 09, 2022. https://osf.io/xbyvh
Harel D, Wu Y, Levis B, Fan S, Sun Y, Markham S, Ioannidis JPA, Takwoingi Y, Patten SB, Ziegelstein RC, Cuijpers P, Gilbody S, Vigod S, Akena D, Benedetti A, Thombs BD. Comparison of depression symptom scores obtained via conventional in-person and alternative modes of administration through differential item functioning. Open Science Framework. June 21, 2022. https://osf.io/znsbv
Nassar EL, Levis B, Rice DB, Benedetti A, Thombs BD. Transparency and Completeness of Reporting of Depression Screening Tool Accuracy Studies: a Meta-research Review of Adherence to the STARD Statement. Open Science Framework. July 05, 2021. https://osf.io/5tvf3
Qiu X, Wu Y, Sun Y, Levis B, Boruff J, Cuijpers, Ioannidis JPA, Markham S, Ziegelstein RC, Vigod SN, Benedetti A, Thombs BD. Equivalence of the Accuracy of 9-and 10-item Versions of the Edinburgh Postnatal Depression Scale for Screening to Detect Major Depression among Pregnant and Postpartum Women: Protocol for a Systematic Review and Individual Participant Data Meta-analysis. Open Science Framework. June 16, 2021. https://osf.io/n9mfq
Harel D, Levis B, Sun Y, Ioannidis JPA, Cuijpers P, Patten SB, Ziegelstein RC, Markham S, Benedetti A, Thombs BD, and the DEPRESsion Screening Data (DEPRESSD) Collaboration. Validation of the Patient Health Questionnaire-Dep-4 (PHQ-Dep-4) depression screening tool: Protocol for an individual participant data meta-analysis. Open Science Framework. April 27, 2021. https://osf.io/ctejr
Negeri ZF, Levis B, Ioannidis JPA, Thombs BD, Benedetti A. Protocol for an empirical comparison of statistical methods for multiple cut-off screening test meta-analysis of the Edinburgh Postnatal Depression Scale (EPDS) using published results vs individual participant data. Open Science Framework. April 13, 2021. https://osf.io/2jxh8
Wu Y, Levis B, Daray FM, Ioannidis JPA, Patten SB, Cuijpers P, Ziegelstein RC, Gilbody S, Benedetti A, Thombs BD. Comparison of the accuracy of the7-item HADS Depression subscale and 14-item HADS for screening for major depression: a systematic review and individual participant data meta-analysis. Open Science Framework. February 10, 2021. https://osf.io/438ak
Neupane D, Brehaut E, Krishnan A, Little J, Benedetti A, Thombs BD. Effectiveness of anti-inflammatory agents as monotherapy or adjunctive to anti-depressant treatments for major depressive disorder: protocol for a replication and update of a systematic review and meta-analysis. Open Science Framework. January 26, 2021. https://osf.io/5r34n
Brehaut E, Neupane D, Levis B, Wu Y, Ioannidis JPA, Benedetti A, Thombs BD, and the and the DEPRESsion Screening Data (DEPRESSD) Collaboration. Optimal cutoff selection in depression screening studies using the PHQ-9, EPDS, and HADS. Open Science Framework. September 15, 2020. https://osf.io/fxhyw/
Neupane D, Bhandari PM, Levis B, Shrier I, Ioannidis JPA, Markham S, Thombs BD, Benedetti A, and the DEPRESsion Screening Data (DEPRESSD) Collaboration. Evaluation of direct and indirect methods for comparing the screening accuracy of the PHQ-9 and HADS-D: protocol for an individual participant data meta-analysis. Open Science Framework. June 8, 2020. https://osf.io/75v6u/
Bhandari PM, Levis B, Negeri Z, Wu Y, Ioannidis JPA, Shrier I, Cuijpers P, Thombs BD, Benedetti A, and the DEPRESsion Screening Data (DEPRESSD) EPDS Collaboration. Estimating confidence intervals for the Youden’s J optimal cutoff and correcting for optimism in associated accuracy estimates: Protocol for an analysis using individual participant data of the Edinburgh Postnatal Depression Scale. Open Science Framework. May 2, 2020. https://osf.io/5gqth/
Bhandari PM, Levis B, Negeri Z, Wu Y, Ioannidis JPA, Shrier I, Cuijpers P, Thombs BD, Benedetti A, and the DEPRESsion Screening Data (DEPRESSD) Collaboration. Estimating confidence intervals for the Youden’s J optimal cutoff and correcting for optimism in associated accuracy estimates: Protocol for an analysis using individual participant data of the Patient Health Questionnaire-9. Open Science Framework. February 12, 2020. https://osf.io/5gqth/
Brehaut E, Neupane D, Levis B, Wu Y, Benedetti A, Thombs BD, and the DEPRESsion Screening Data (DEPRESSD) HADS Collaboration. Depression prevalence based on the HADS depression subscale compared to Structured Clinical Interview for DSM classification: individual participant data meta-analysis. Open Science Framework. January 24, 2020. https://osf.io/n5a3e/
Harel D, Levis B, Ishihara M, Levis AW, Thombs, BD, Benedetti A, and the DEPRESsion Screening Data (DEPRESSD) EPDS Collaboration. A Protocol for Shortening the Edinburgh Postnatal Depression Scale (EPDS) using Optimal Test Assembly Methods. Open Science Framework. November 14, 2019. https://osf.io/3cepr/
Fischer F, Levis B, Falk C, Ioannidis J, Cuijpers P, Shrier I, Thombs B, Benedetti A, and the DEPRESsion Screening Data (DEPRESSD) PHQ Collaboration. Comparison of different scoring methods based on latent variable models of the PHQ-9: protocol for an individual participant data meta-analysis. Open Science Framework. September 12, 2019. https://osf.io/2tyc3/
Lyubenova A, Neupane D, Levis B, Wu Y, Benedetti A, Thombs BD and the DEPRESsion Screening Data (DEPRESSD) Collaboration. Depression prevalence based on the EPDS compared to Structured Clinical Interview for DSM classification: protocol for an individual participant data meta-analysis. Open Science Framework. July 2, 2019. https://osf.io/yw9u8/
Levis B, Bhandari PM, Benedetti A, Thombs BD and the DEPRESsion Screening Data (DEPRESSD) Collaboration. Evaluation of bias in diagnostic accuracy estimates due to data-driven cutoff selection: protocol for a simulation study using individual participant data from 58 studies on the diagnostic accuracy of the Patient Health Questionnaire-9 (PHQ-9). Open Science Framework. March 28, 2019. https://osf.io/pg2yc/
Neupane D, Levis B, Bhandari PM, Benedetti A, Thombs BD and the DEPRESsion Screening Data (DEPRESSD) Collaboration. Selective cutoff reporting in studies of diagnostic test accuracy: protocol for a comparison of meta-analysis of published accuracy estimates versus meta-analysis of individual participant data of the Edinburgh Postnatal Depression Scale. Open Science Framework. March 11, 2019. https://osf.io/z5sjp/
Bhandari PM, Levis B, Neupane D, Benedetti A, Thombs BD and the DEPRESsion Screening Data (DEPRESSD) Collaboration. Evaluation of bias in diagnostic accuracy estimates due to data-driven cutoff selection: protocol for a simulation study using individual participant data from 50 studies on the diagnostic accuracy of the Edinburgh Postnatal Depression Scale (EPDS). Open Science Framework. February 23, 2019. https://osf.io/854zn/