Michael Webster-Clark

Affiliations

Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, North Carolina, USA.

Publications (25)

Propensity score methods to control for confounding in observational cohort studies: a statistical primer and application to endoscopy research.

Gastrointestinal endoscopy

Avec: Jeff Y Yang , Michael Webster-Clark , Jennifer L Lund , Robert S Sandler , Evan S Dellon , Til Stürmer

Target validity: Bringing treatment of external validity in line with internal validity.

Current epidemiology reports

Avec: Catherine R Lesko , Benjamin Ackerman , Michael Webster-Clark , Jessie K Edwards

Initiator Types and the Causal Question of the Prevalent New-User Design: A Simulation Study.

American journal of epidemiology

Avec: Michael Webster-Clark , Rachael K Ross , Jennifer L Lund

Meta-analysis with sample-standardization in multi-site studies.

Pharmacoepidemiology and drug safety

Avec: Di Shu , Michael Webster-Clark , Robert W Platt , Sengwee Toh

Reweighting Oranges to Apples: Transported RE-LY Trial Versus Nonexperimental Effect Estimates of Anticoagulation in Atrial Fibrillation.

Epidemiology (Cambridge, Mass.)

Avec: Michael Webster-Clark , Jennifer L Lund , Til Stürmer , Charles Poole , Ross J Simpson , Jessie K Edwards

Translating claims-based CHA

Pharmacoepidemiology and drug safety

Avec: Michael Webster-Clark , Ting-Ying Huang , Laura Hou , Sengwee Toh

How Choice of Effect Measure Influences Minimally Sufficient Adjustment Sets for External Validity.

American journal of epidemiology

Avec: Michael Webster-Clark , Alexander P Keil

Standardizing to Specific Target Populations in Distributed Networks and Multi-Site Pharmacoepidemiologic Studies.

American journal of epidemiology

Avec: Michael Webster-Clark , Kristian B Filion , Robert W Platt

Using propensity scores to estimate effects of treatment initiation decisions: State of the science.

Statistics in medicine

Avec: Michael Webster-Clark , Til Stürmer , Tiansheng Wang , Kenneth Man , Danica Marinac-Dabic , Kenneth J Rothman , Alan R Ellis , Mugdha Gokhale , Mark Lunt , Cynthia Girman , Robert J Glynn

Comparison of Methods to Generalize Randomized Clinical Trial Results Without Individual-Level Data for the Target Population.

American journal of epidemiology

Avec: Jin-Liern Hong , Michael Webster-Clark , Michele Jonsson Funk , Til Stürmer , Sara E Dempster , Stephen R Cole , Iksha Herr , Robert LoCasale

How subgroup analyses can miss the trees for the forest plots: A simulation study.

Journal of clinical epidemiology

Avec: Michael Webster-Clark , John A Baron , Michele Jonsson Funk , Daniel Westreich

Directed Acyclic Graphs, Effect Measure Modification, and Generalizability.

American journal of epidemiology

Avec: Michael Webster-Clark , Alexander Breskin

Single-arm Trials With External Comparators and Confounder Misclassification: How Adjustment Can Fail.

Medical care

Avec: Michael Webster-Clark , Michele Jonsson Funk , Til Stürmer

Real-world on-treatment and initial treatment absolute risk differences for dabigatran vs warfarin in older US adults.

Pharmacoepidemiology and drug safety

Avec: Michael Webster-Clark , Til Stürmer , Jessie K Edwards , Charles Poole , Ross J Simpson , Jennifer L Lund

Validation of a 5-Year Mortality Prediction Model among U.S. Medicare Beneficiaries.

Journal of the American Geriatrics Society

Avec: Rachael K Ross , Tzy-Mey Kuo , Michael Webster-Clark , Carmen L Lewis , Christine E Kistler , Michele Jonsson Funk , Jennifer L Lund

Comparing Trial and Real-world Adjuvant Oxaliplatin Delivery in Patients With Stage III Colon Cancer Using a Longitudinal Cumulative Dose.

JAMA oncology

Avec: Michael Webster-Clark , Alexander P Keil , Nicholas Robert , Jennifer R Frytak , Marley Boyd , Til Stürmer , Hanna Sanoff , Daniel Westreich , Jennifer L Lund

The Timing, the Treatment, the Question: Comparison of Epidemiologic Approaches to Minimize Immortal Time Bias in Real-World Data Using a Surgical Oncology Example.

Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology

Avec: Emilie D Duchesneau , Bradford E Jackson , Michael Webster-Clark , Jennifer L Lund , Katherine E Reeder-Hayes , Anna M Nápoles , Paula D Strassle

Variable Selection When Estimating Effects in External Target Populations.

American journal of epidemiology

Avec: Michael Webster-Clark , Rachael K Ross , Alexander P Keil , Robert W Platt

Introducing longitudinal cumulative dose to describe chemotherapy patterns over time: Case study of a colon cancer trial.

International journal of cancer

Avec: Michael Webster-Clark , Alexander P Keil , Hanna K Sanoff , Til Stürmer , Daniel Westreich , Jennifer L Lund

Propensity Score Weighting and Trimming Strategies for Reducing Variance and Bias of Treatment Effect Estimates: A Simulation Study.

American journal of epidemiology

Avec: Til Stürmer , Michael Webster-Clark , Jennifer L Lund , Richard Wyss , Alan R Ellis , Mark Lunt , Kenneth J Rothman , Robert J Glynn

Alternative analytic and matching approaches for the prevalent new-user design: A simulation study.

Pharmacoepidemiology and drug safety

Avec: Michael Webster-Clark , Panagiotis Mavros , Elizabeth M Garry , Til Stürmer , Shahar Shmuel , Jessica Young , Cynthia Girman

Clarifying the causal contrast: An empirical example applying the prevalent new user study design.

Pharmacoepidemiology and drug safety

Avec: Jessica C Young , Michael Webster-Clark , Shahar Shmuel , Elizabeth M Garry , Panagiotis Mavros , Til Stürmer , Cynthia J Girman

Nondifferential Treatment Misclassification Biases Toward the Null? Not a Safe Bet for Active Comparator Studies.

American journal of epidemiology

Avec: Rachael K Ross , I-Hsuan Su , Michael Webster-Clark , Michele Jonsson Funk

A systematic review of whether COVID-19 randomized controlled trials reported on demographic and clinical characteristics.

Pharmacoepidemiology and drug safety

Avec: Joyce Pak , Jennifer L Lund , Alexander Keil , Daniel Westreich , Til Stürmer , David Wohl , Claire Farel , M Bradley Drummond , Michael Webster-Clark

External validity in distributed data networks.

Pharmacoepidemiology and drug safety

Avec: Michael Webster-Clark , Sengwee Toh , Jonathan Arnold , Kathleen M McTigue , Thomas Carton , Robert Platt

Réseau de co-auteurs

Til Stürmer 12 collaborations

Jennifer L Lund 10 collaborations

Michele Jonsson Funk 5 collaborations

Rachael K Ross 4 collaborations

Alexander P Keil 4 collaborations

Daniel Westreich 4 collaborations

Jessie K Edwards 3 collaborations

Robert W Platt 3 collaborations

Sengwee Toh 3 collaborations

Charles Poole 2 collaborations

Ross J Simpson 2 collaborations

Kenneth J Rothman 2 collaborations

Alan R Ellis 2 collaborations

Mark Lunt 2 collaborations

Cynthia Girman 2 collaborations

Robert J Glynn 2 collaborations

Panagiotis Mavros 2 collaborations

Elizabeth M Garry 2 collaborations

Shahar Shmuel 2 collaborations

Jeff Y Yang 1 collaboration

Robert S Sandler 1 collaboration

Evan S Dellon 1 collaboration

Catherine R Lesko 1 collaboration

Benjamin Ackerman 1 collaboration

Di Shu 1 collaboration

Ting-Ying Huang 1 collaboration

Laura Hou 1 collaboration

Kristian B Filion 1 collaboration

Tiansheng Wang 1 collaboration

Kenneth Man 1 collaboration

Danica Marinac-Dabic 1 collaboration

Mugdha Gokhale 1 collaboration

Jin-Liern Hong 1 collaboration

Sara E Dempster 1 collaboration

Stephen R Cole 1 collaboration

Iksha Herr 1 collaboration

Robert LoCasale 1 collaboration

John A Baron 1 collaboration

Alexander Breskin 1 collaboration

Tzy-Mey Kuo 1 collaboration

Carmen L Lewis 1 collaboration

Christine E Kistler 1 collaboration

Nicholas Robert 1 collaboration

Jennifer R Frytak 1 collaboration

Marley Boyd 1 collaboration

Hanna Sanoff 1 collaboration

Emilie D Duchesneau 1 collaboration

Bradford E Jackson 1 collaboration

Katherine E Reeder-Hayes 1 collaboration

Anna M Nápoles 1 collaboration

Paula D Strassle 1 collaboration

Hanna K Sanoff 1 collaboration

Richard Wyss 1 collaboration

Jessica Young 1 collaboration

Jessica C Young 1 collaboration

Cynthia J Girman 1 collaboration

I-Hsuan Su 1 collaboration

Joyce Pak 1 collaboration

Alexander Keil 1 collaboration

David Wohl 1 collaboration

Claire Farel 1 collaboration

M Bradley Drummond 1 collaboration

Jonathan Arnold 1 collaboration

Kathleen M McTigue 1 collaboration

Thomas Carton 1 collaboration

Robert Platt 1 collaboration