B. Levis

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Are MEDLINE searches sufficient for systematic reviews and meta-analyses of the diagnostic accuracy of depression screening tools? A review of meta-analyses.

Lorie A. Kloda, D. Rice, B. Levis, 2016, Journal of psychosomatic research.

Selective Cutoff Reporting in Studies of Diagnostic Test Accuracy: A Comparison of Conventional and Individual-Patient-Data Meta-Analyses of the Patient Health Questionnaire-9 Depression Screening Tool

Mary A Whooley, Lorie A. Kloda, John P A Ioannidis, 2017, American journal of epidemiology.

Diagnostic accuracy of the Depression subscale of the Hospital Anxiety and Depression Scale (HADS-D) for detecting major depression: protocol for a systematic review and individual patient data meta-analyses

Lorie A. Kloda, R. Steele, J. Ioannidis, 2016, BMJ Open.

The diagnostic accuracy of the Patient Health Questionnaire-2 (PHQ-2), Patient Health Questionnaire-8 (PHQ-8), and Patient Health Questionnaire-9 (PHQ-9) for detecting major depression: protocol for a systematic review and individual patient data meta-analyses

Lorie A. Kloda, John P A Ioannidis, Ian Shrier, 2014, Systematic Reviews.

Diagnostic accuracy of the Geriatric Depression Scale-30, Geriatric Depression Scale-15, Geriatric Depression Scale-5 and Geriatric Depression Scale-4 for detecting major depression: protocol for a systematic review and individual participant data meta-analysis

J. Ioannidis, P. Cuijpers, B. Levis, 2018, BMJ Open.

The Accuracy of the Patient Health Questionnaire-9 Algorithm for Screening to Detect Major Depression: An Individual Participant Data Meta-Analysis

Lorie A. Kloda, J. Ioannidis, P. Cuijpers, 2019, Psychotherapy and Psychosomatics.

A protocol for the VISION study: An indiVidual patient data meta-analysis of randomised trials comparing MRI-targeted biopsy to standard transrectal ultraSound guided bIopsy in the detection of prOstate cancer

G. Pond, B. Levis, M. Haider, 2022, PloS one.

Randomized feasibility trial of the Scleroderma Patient-centered Intervention Network Self-Management (SPIN-SELF) Program

Richard S. Henry, M. Suarez‐Almazor, B. Levis, 2022, Pilot and Feasibility Studies.

PRIME-IPD SERIES Part 2. Retrieving, checking, and harmonizing data are underappreciated challenges in individual participant data meta-analyses.

B. Levis, R. Riley, M. Hattle, 2021, Journal of clinical epidemiology.

Comparison of depression prevalence estimates in meta-analyses based on screening tools and rating scales versus diagnostic interviews: a meta-research review

B. Levis, B. Thombs, A. Benedetti, 2019, BMC Medicine.

Accuracy of the Hospital Anxiety and Depression Scale Depression subscale (HADS-D) to screen for major depression: systematic review and individual participant data meta-analysis

Ying Sun, B. Levis, B. Thombs, 2021, BMJ.

An empirical comparison of three methods for multiple cutoff diagnostic test meta‐analysis of the Patient Health Questionnaire‐9 (PHQ‐9) depression screening tool using published data vs individual level data

J. Ioannidis, G. Rücker, B. Levis, 2020 .

Systematic review of mental health symptom changes by sex or gender in early-COVID-19 compared to pre-pandemic

D. Rice, B. Levis, B. Thombs, 2022, Scientific Reports.

A systematic review of validated screening tools for anxiety disorders and PTSD in low to middle income countries

B. Levis, B. Gaynes, V. Go, 2020, BMC Psychiatry.

Reporting of drug trial funding sources and author financial conflicts of interest in Cochrane and non-Cochrane meta-analyses: a cross-sectional study

B. Levis, B. Thombs, A. Benedetti, 2020, BMJ Open.

COVID-19 individual participant data meta-analyses. Can there be too many? Results from a rapid systematic review

B. Levis, L. Maxwell, P. Shreedhar, 2022, medRxiv.

Transparency and completeness of reporting of depression screening tool accuracy studies: A meta‐research review of adherence to the Standards for Reporting of Diagnostic Accuracy Studies statement

D. Rice, B. Levis, B. Thombs, 2022, International journal of methods in psychiatric research.

PHQ-8 scores and estimation of depression prevalence.

B. Levis, B. Thombs, A. Benedetti, 2021, The Lancet. Public health.

Sexual Activity and Impairment in Women with Systemic Sclerosis Compared to Women from a General Population Sample

B. Levis, B. Thombs, M. Hudson, 2012, PloS one.

Effects of a support group leader education program jointly developed by health professionals and patients on peer leader self-efficacy among leaders of scleroderma support groups: a two-arm parallel partially nested randomised controlled trial

Richard S. Henry, B. Levis, B. Thombs, 2022, Orphanet Journal of Rare Diseases.

Screening for depression and risk of suicide in patients with arthritis: Comment on the article by Tektonidou et al

B. Levis, B. Thombs, Ilya Razykov, 2012, Arthritis care & research.

CT/MRI and CEUS LI-RADS Major Features Association with Hepatocellular Carcinoma: Individual Patient Data Meta-Analysis.

So Yeon Kim, Tyler J. Fraum, Jung Hoon Kim, 2021, Radiology.

Reassessing the clinical utility of the Patient Health Questionnaire (PHQ)-9 for depression screening in prenatal women: a commentary on Sidebottom et al.

B. Levis, B. Thombs, L. Kwakkenbos, 2013, Archives of Women's Mental Health.

Heterogeneity of Zika virus exposure and outcome ascertainment across cohorts of pregnant women, their infants and their children: a metadata survey

B. Levis, L. Maxwell, P. Shreedhar, 2022, BMJ Open.

Randomized controlled trial of an internet-based self-guided hand exercise program to improve hand function in people with systemic sclerosis: the Scleroderma Patient-centered Intervention Network Hand Exercise Program (SPIN-HAND) trial

Richard S. Henry, M. Suarez‐Almazor, B. Levis, 2022, Trials.

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

Andrea Benedetti, B. Levis, B. Thombs, 2019, BMJ.

Accuracy of the PHQ-2 Alone and in Combination With the PHQ-9 for Screening to Detect Major Depression: Systematic Review and Meta-analysis.

B. Levis, B. Thombs, A. Benedetti, 2020, JAMA.

Preferred reporting items for systematic review and meta-analysis of diagnostic test accuracy studies (PRISMA-DTA): explanation, elaboration, and checklist

Jérémie F. Cohen, C. Gatsonis, D. Moher, 2020, BMJ.

The Scleroderma Patient-centered Intervention Network Self-Management (SPIN-SELF) Program: protocol for a two-arm parallel partially nested randomized controlled feasibility trial with progression to full-scale trial

Richard S. Henry, M. Suarez‐Almazor, B. Levis, 2021, Trials.

Validation of the COVID-19 Fears Questionnaires for Chronic Medical Conditions: A Scleroderma Patient-centered Intervention Network COVID-19 Cohort study

Richard S. Henry, D. Rice, B. Levis, 2020, Journal of Psychosomatic Research.

Protocol for a partially nested randomised controlled trial to evaluate the effectiveness of the scleroderma patient-centered intervention network COVID-19 home-isolation activities together (SPIN-CHAT) program to reduce anxiety among at-risk scleroderma patients

Richard S. Henry, M. Suarez‐Almazor, D. Rice, 2020, Journal of Psychosomatic Research.

Depression prevalence using the HADS-D compared to SCID major depression classification: An individual participant data meta-analysis.

Lorie A. Kloda, J. Ioannidis, P. Cuijpers, 2020, Journal of psychosomatic research.

Patient Health Questionnaire-9 scores do not accurately estimate depression prevalence: individual participant data meta-analysis.

Lorie A. Kloda, J. Ioannidis, P. Cuijpers, 2020, Journal of clinical epidemiology.

Selective cutoff reporting in studies of the accuracy of the Patient Health Questionnaire‐9 and Edinburgh Postnatal Depression Scale: Comparison of results based on published cutoffs versus all cutoffs using individual participant data meta‐analysis

B. Levis, B. Thombs, A. Benedetti, 2021, International journal of methods in psychiatric research.

Shortening the Edinburgh postnatal depression scale using optimal test assembly methods: Development of the EPDS‐Dep‐5

B. Levis, B. Thombs, A. Benedetti, 2020, Acta psychiatrica Scandinavica.

Shortening self‐report mental health symptom measures through optimal test assembly methods: Development and validation of the Patient Health Questionnaire‐Depression‐4

Lorie A. Kloda, J. Ioannidis, P. Cuijpers, 2018, Depression and anxiety.

Evaluation of Journal Registration Policies and Prospective Registration of Randomized Clinical Trials of Nonregulated Health Care Interventions.

Lorie A. Kloda, D. Rice, B. Levis, 2019, JAMA internal medicine.

Reducing Waste and Increasing the Usability of Psychiatry Research: The Family of EQUATOR Reporting Guidelines and One of Its Newest Members: The PRISMA-DTA Statement

D. Rice, B. Levis, B. Thombs, 2018, Canadian journal of psychiatry. Revue canadienne de psychiatrie.

Accuracy of the Edinburgh Postnatal Depression Scale (EPDS) for screening to detect major depression among pregnant and postpartum women: systematic review and meta-analysis of individual participant data

B. Levis, B. Thombs, A. Benedetti, 2020, BMJ.

Depression screening and patient outcomes in pregnancy or postpartum: a systematic review.

D. Stewart, B. Levis, B. Thombs, 2014, Journal of psychosomatic research.

Intensity of care and perceived burden among informal caregivers to persons with chronic medical conditions: a systematic review and meta-analysis

D. Rice, B. Levis, B. Thombs, 2021, Disability and rehabilitation.

Association between antihypertensive treatment and adverse events: systematic review and meta-analysis

R. Payne, B. Levis, N. Roberts, 2021, BMJ.

Prevalence and clinical correlates of pruritus in patients with systemic sclerosis: an updated analysis of 959 patients.

B. Levis, B. Thombs, M. Hudson, 2013, Rheumatology.

Accuracy of the Hospital Anxiety and Depression Scale Depression subscale (HADS-D) to screen for major depression: systematic review and individual participant data meta-analysis

B. Levis, B. Thombs, A. Benedetti, 2021, BMJ.

The Scleroderma Patient-centered Intervention Network (SPIN) Cohort: protocol for a cohort multiple randomised controlled trial (cmRCT) design to support trials of psychosocial and rehabilitation interventions in a rare disease context

R. Steele, M. Suarez‐Almazor, B. Levis, 2013, BMJ Open.

Title The Scleroderma Patient-centered Intervention Network ( SPIN ) Cohort : Protocol for a cohort multiple randomised controlled trial ( cmRCT ) design to support trials of psychosocial and rehabilitation interventions in a rare disease context Permalink

R. Steele, M. Suarez‐Almazor, B. Levis, 2013 .

Group Sample Sizes in Non-Regulated Health Care Intervention Trials Described as Randomized Controlled Trials were Overly Similar.

Lorie A. Kloda, D. Rice, B. Levis, 2019, Journal of clinical epidemiology.

In utero acetaminophen exposure and child neurodevelopmental outcomes: Systematic review and meta-analysis.

B. Levis, H. Brown, M. Fatima, 2023, Paediatric and perinatal epidemiology.

Equivalency of the diagnostic accuracy of the PHQ-8 and PHQ-9: a systematic review and individual participant data meta-analysis

Lorie A. Kloda, J. Ioannidis, P. Cuijpers, 2019, Psychological Medicine.

Does Evidence Support the American Heart Association's Recommendation to Screen Patients for Depression in Cardiovascular Care? An Updated Systematic Review

B. Levis, B. Thombs, J. Coyne, 2013, PloS one.

University of Groningen Does Evidence Support the American Heart Association's Recommendation to Screen Patients for Depression in Cardiovascular Care? An Updated Systematic Review Thombs,

B. Levis, B. Thombs, J. Coyne, 2013 .

Comparison of Mental Health Symptom Changes from pre-COVID-19 to COVID-19 by Sex or Gender: A Systematic Review and Meta-analysis

D. Rice, B. Levis, J. Boruff, 2021, medRxiv.

Resident Physicians With Depression or Depressive Symptoms.

B. Levis, B. Thombs, M. Azar, 2016, JAMA.

Comparison of Mental Health Symptoms prior to and during COVID-19: Evidence from a Living Systematic Review and Meta-analysis

D. Rice, B. Levis, B. Thombs, 2021, medRxiv.

Accuracy of the Patient Health Questionnaire-9 for screening to detect major depression: updated systematic review and individual participant data meta-analysis

B. Levis, B. Thombs, A. Benedetti, 2021, BMJ.

Prevalence estimates of major depressive disorder in 27 European countries from the European Health Interview Survey: accounting for imperfect diagnostic accuracy of the PHQ-8

B. Levis, B. Thombs, A. Benedetti, 2023, BMJ mental health.

Probability of Major Depression Classification Based on the SCID, CIDI, and MINI Diagnostic Interviews: A Synthesis of Three Individual Participant Data Meta-Analyses

J. Ioannidis, B. Levis, B. Thombs, 2020, Psychotherapy and Psychosomatics.

Probability of major depression diagnostic classification using semi-structured versus fully structured diagnostic interviews

John P. A. Ioannidis, Vikram Patel, Leanne Hides, 2018, The British Journal of Psychiatry.

Pain levels and associated factors in the Scleroderma Patient-centered Intervention Network (SPIN) cohort: a multicentre cross-sectional study.

Richard S. Henry, M. Suarez‐Almazor, B. Levis, 2021, The Lancet. Rheumatology.

Rates and correlates of sexual activity and impairment among women with systemic sclerosis

B. Levis, B. Thombs, M. Hudson, 2012, Arthritis care & research.

Sample size and precision of estimates in studies of depression screening tool accuracy: A meta‐research review of studies published in 2018–2021

D. Rice, B. Levis, B. Thombs, 2022, International journal of methods in psychiatric research.

Transparent reporting of multivariable prediction models for individual prognosis or diagnosis: checklist for systematic reviews and meta-analyses (TRIPOD-SRMA)

L. Hooft, B. Levis, J. Reitsma, 2023, BMJ.

Comparison of mental health symptoms before and during the covid-19 pandemic: evidence from a systematic review and meta-analysis of 134 cohorts

D. Rice, B. Levis, B. Thombs, 2023, BMJ.

Depression prevalence based on the Edinburgh Postnatal Depression Scale compared to Structured Clinical Interview for DSM DIsorders classification: Systematic review and individual participant data meta‐analysis

Lorie A. Kloda, J. Ioannidis, P. Cuijpers, 2020, International journal of methods in psychiatric research.

Psychosocial Aspects of Scleroderma.

B. Levis, B. Thombs, S. Gholizadeh, 2015, Rheumatic diseases clinics of North America.

How to Critically Appraise and Interpret Systematic Reviews and Meta-Analyses of Diagnostic Accuracy: A User Guide.

P. Bossuyt, M. Leeflang, B. Levis, 2023, Radiology.

Completeness of Reporting of Systematic Reviews of Diagnostic Test Accuracy Based on the PRISMA-DTA Reporting Guideline.

D. Moher, P. Bossuyt, B. Levis, 2019, Clinical chemistry.

Overestimation of Postpartum Depression Prevalence Based on a 5-item Version of the EPDS: Systematic Review and Individual Participant Data Meta-analysis

Lorie A. Kloda, J. Ioannidis, P. Cuijpers, 2020, Canadian journal of psychiatry. Revue canadienne de psychiatrie.

Effects of screening for psychological distress on patient outcomes in cancer: a systematic review.

D. Stewart, B. Levis, B. Thombs, 2013, Journal of psychosomatic research.

Factors associated with symptoms of depression among informal caregivers of people with systemic sclerosis: a cross-sectional study

D. Rice, B. Levis, B. Thombs, 2018, Disability and rehabilitation.

Individual participant data meta-analysis to compare EPDS accuracy to detect major depression with and without the self-harm item

Lorie A. Kloda, P. Cuijpers, D. Rice, 2023, Scientific Reports.

Inclusion of currently diagnosed or treated individuals in studies of depression screening tool accuracy: a meta-research review of studies published in 2018-2021.

D. Rice, B. Levis, B. Thombs, 2022, General hospital psychiatry.

Diagnostic accuracy of the Edinburgh Postnatal Depression Scale (EPDS) for detecting major depression in pregnant and postnatal women: protocol for a systematic review and individual patient data meta-analyses

Lorie A. Kloda, R. Steele, J. Ioannidis, 2015, BMJ Open.

Probability of major depression diagnostic classification based on the SCID, CIDI and MINI diagnostic interviews controlling for Hospital Anxiety and Depression Scale - Depression subscale scores: An individual participant data meta-analysis of 73 primary studies.

Lorie A. Kloda, J. Ioannidis, Ying Sun, 2019, Journal of psychosomatic research.

Comparison of major depression diagnostic classification probability using the SCID, CIDI, and MINI diagnostic interviews among women in pregnancy or postpartum: An individual participant data meta‐analysis

Lorie A. Kloda, J. Ioannidis, P. Cuijpers, 2019, International journal of methods in psychiatric research.

Using Marital Status and Continuous Marital Satisfaction Ratings to Predict Depressive Symptoms in Married and Unmarried Women With Systemic Sclerosis: A Canadian Scleroderma Research Group Study

R. Steele, D. Rice, B. Levis, 2016, Arthritis care & research.

External Validation of a Shortened Screening Tool Using Individual Participant Data Meta-Analysis: a Case Study of the Patient Questionnaire-Dep-4.

J. Ioannidis, P. Cuijpers, B. Levis, 2021, Methods.

Comparison of different scoring methods based on latent variable models of the PHQ-9: an individual participant data meta-analysis

Lorie A. Kloda, Carl F. Falk, J. Ioannidis, 2021, Psychological Medicine.

Richard S. Henry, M. Suarez‐Almazor, D. Rice, 2020, Journal of psychosomatic research.

Equivalency of the diagnostic accuracy of the PHQ-8 and PHQ-9: a systematic review and individual participant data meta-analysis – ERRATUM

Lorie A. Kloda, J. Ioannidis, P. Cuijpers, 2019, Psychological Medicine.

The association of sociodemographic and objectively-assessed disease variables with fatigue in systemic sclerosis: an analysis of 785 Canadian Scleroderma Research Group Registry patients

B. Levis, B. Thombs, M. Hudson, 2017, Clinical Rheumatology.

Exploring research team members’ and trial participants’ perceptions of acceptability and implementation within one videoconference-based supportive care program for individuals affected by systemic sclerosis during COVID-19: a qualitative interview study

Richard S. Henry, D. Rice, B. Levis, 2023, Translational behavioral medicine.

Psychosocial issues and care for patients with systemic sclerosis

B. Levis, B. Thombs, L. Kwakkenbos, 2017 .

Preliminary COVID-19 Fears Questionnaire: Systemic Sclerosis and Chronic Medical Conditions Versions

B. Levis, B. Thombs, A. Benedetti, 2020 .

Richard S. Henry, M. Suarez‐Almazor, B. Levis, 2021, Trials.

Effects of a multi-faceted education and support programme on anxiety symptoms among people with systemic sclerosis and anxiety during COVID-19 (SPIN-CHAT): a two-arm parallel, partially nested, randomised, controlled trial

Richard S. Henry, D. Rice, B. Levis, 2021, The Lancet Rheumatology.

The Comparability of Functional Assessment of Chronic Illness Therapy - Fatigue Scores between Cancer and Systemic Sclerosis

B. Levis, B. Thombs, D. Cella, 2017 .

Concise Report

B. Levis, B. Thombs, M. Hudson, 2022 .

‘Optimal’ cutoff selection in studies of depression screening tool accuracy using the PHQ‐9, EPDS, or HADS‐D: A meta‐research study

P. Cuijpers, B. Levis, B. Thombs, 2022, International journal of methods in psychiatric research.

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

B. Levis, B. Thombs, A. Benedetti, 2019, BMJ.

Overlapping research efforts in a global pandemic: a rapid systematic review of COVID-19-related individual participant data meta-analyses

B. Levis, Shaila Akter, L. Maxwell, 2023, BMC Health Services Research.

A case study of an individual participant data meta-analysis of diagnostic accuracy showed that prediction regions represented heterogeneity well

Lorie A. Kloda, P. Cuijpers, B. Hall, 2023, Scientific reports.

Factors Associated with Physical Function among People with Systemic Sclerosis: A Scleroderma Patient-centered Intervention Network (SPIN) Cohort Cross-sectional Study

D. Rice, B. Levis, B. Thombs, 2023, medRxiv.

Patterns of patient-reported symptoms and association with sociodemographic and systemic sclerosis disease characteristics: a scleroderma Patient-centered Intervention Network (SPIN) Cohort cross-sectional study

Richard S. Henry, M. Suarez‐Almazor, B. Levis, 2023, EClinicalMedicine.

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

B. Levis, B. Thombs, A. Benedetti, 2019, BMJ.

Accuracy of the Montreal Cognitive Assessment tool for detecting mild cognitive impairment: A systematic review and meta‐analysis

B. Levis, B. Thombs, M. McInnes, 2023, Alzheimer's & dementia : the journal of the Alzheimer's Association.

A qualitative interview study exploring the psychological health impacts of the SPIN-CHAT program among people with systemic sclerosis at the onset of COVID-19: perceptions of trial participants and research team members

Richard S. Henry, M. Suarez‐Almazor, D. Rice, 2023, Disability and rehabilitation.

Effects of screening for psychological distress on patient outcomes in cancer

B. Levis, B. Thombs, M. Stefanek, 2017 .

Resident Physicians With Depression or Depressive Symptoms.

B. Levis, B. Thombs, M. Azar, 2016, JAMA.

Screening for depression and risk of suicide in patients with arthritis: Comment on the article by Tektonidou et al

B. Levis, B. Thombs, Ilya Razykov, 2012, Arthritis care & research.

Factors associated with satisfaction with social roles and activities among people with systemic sclerosis: a Scleroderma Patient-centered Intervention Network (SPIN) cohort cross-sectional study

B. Levis, B. Thombs, M. Carrier, 2024, RMD Open.

Rates and correlates of sexual activity and impairment among women with systemic sclerosis

B. Levis, B. Thombs, M. Hudson, 2012, Arthritis care & research.

Comparison of scores on Patient Health Questionnaire-9, Edinburgh Postnatal Depression Scale and Hospital Anxiety and Depression - Depression subscale scores by administration mode: An individual participant data differential item functioning meta-analysis.

Sherina Mohd Sidik, Lorie A. Kloda, B. Levis, 2024, Journal of affective disorders.

How to plan and manage an individual participant data meta‐analysis. An illustrative toolkit

B. Levis, P. Shreedhar, M. Carabali, 2023, Research synthesis methods.

G. Rücker, B. Levis, B. Thombs, 2020, Research synthesis methods.