Publications by authors named "Ross D Williams"

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A Lossless One-shot Distributed Algorithm for Addressing Heterogeneity in Multi-Site Generalized Linear Models.
Bingyu Zhang, Qiong Wu, Jenna M Reps, Lu Li, Jiayi Tong, Ross D Williams

J Am Med Inform Assoc· November 2025

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Longitudinal trajectories of polypharmacy in older people, and their association with the risk of mortality: a joint latent class model analysis of real-world data from the UK and the Netherlands.
Leena Elhussein, Ross D Williams, Wai Yi Man, Edward Burn, Antonella Delmestri

Age Ageing· August 2025

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Unlocking efficiency in real-world collaborative studies: a multi-site international study with one-shot lossless GLMM algorithm.
Jiayi Tong, Jenna M Reps, Chongliang Luo, Yiwen Lu, Lu Li, Ross D Williams

NPJ Digit Med· July 2025

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Finding a constrained number of predictor phenotypes for multiple outcome prediction.
Jenna M Reps, Jenna Wong, Egill A Fridgeirsson, Chungsoo Kim, Luis H John, Ross D Williams

BMJ Health Care Inform· January 2025

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Development and validation of a patient-level model to predict dementia across a network of observational databases.
Luis H John, Egill A Fridgeirsson, Jan A Kors, Jenna M Reps, Ross D Williams

BMC Med· July 2024

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Health-Analytics Data to Evidence Suite (HADES): Open-Source Software for Observational Research.
Martijn Schuemie, Jenna Reps, Adam Black, Frank Defalco, Lee Evans, Ross D Williams

Stud Health Technol Inform· January 2024

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Does Using a Stacking Ensemble Method to Combine Multiple Base Learners Within a Database Improve Model Transportability?
Cynthia Yang, Egill A Fridgeirsson, Jan A Kors, Jenna M Reps, Peter R Rijnbeek, Ross D Williams

Stud Health Technol Inform· May 2023

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The DELPHI Library: Improving Model Validation, Transparency and Dissemination Through a Centralised Library of Prediction Models.
Ross D Williams, Sicco den Otter, Jenna M Reps, Peter R Rijnbeek

Stud Health Technol Inform· May 2023

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Development and external validation of prediction models for adverse health outcomes in rheumatoid arthritis: A multinational real-world cohort analysis.
Cynthia Yang, Ross D Williams, Joel N Swerdel, João Rafael Almeida, Emily S Brouwer

Semin Arthritis Rheum· October 2022

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90-Day all-cause mortality can be predicted following a total knee replacement: an international, network study to develop and validate a prediction model.
Ross D Williams, Jenna M Reps, , Peter R Rijnbeek, Patrick B Ryan

Knee Surg Sports Traumatol Arthrosc· September 2022

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Use of unstructured text in prognostic clinical prediction models: a systematic review.
Tom M Seinen, Egill A Fridgeirsson, Solomon Ioannou, Daniel Jeannetot, Luis H John, Ross D Williams

J Am Med Inform Assoc· June 2022

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Using Iterative Pairwise External Validation to Contextualize Prediction Model Performance: A Use Case Predicting 1-Year Heart Failure Risk in Patients with Diabetes Across Five Data Sources.
Ross D Williams, Jenna M Reps, Jan A Kors, Patrick B Ryan, Ewout Steyerberg

Drug Saf· May 2022

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Learning patient-level prediction models across multiple healthcare databases: evaluation of ensembles for increasing model transportability.
Jenna Marie Reps, Ross D Williams, Martijn J Schuemie, Patrick B Ryan, Peter R Rijnbeek

BMC Med Inform Decis Mak· May 2022

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Trends in the conduct and reporting of clinical prediction model development and validation: a systematic review.
Cynthia Yang, Jan A Kors, Solomon Ioannou, Luis H John, Aniek F Markus, Ross D Williams

J Am Med Inform Assoc· April 2022

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Seek COVER: using a disease proxy to rapidly develop and validate a personalized risk calculator for COVID-19 outcomes in an international network.
Ross D Williams, Aniek F Markus, Cynthia Yang, Talita Duarte-Salles, Scott L DuVall, Andrew E Williams

BMC Med Res Methodol· January 2022

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Prediction of sustained biologic and targeted synthetic DMARD-free remission in rheumatoid arthritis patients.
Theresa Burkard, Ross D Williams, Enriqueta Vallejo-Yagüe, Thomas Hügle, Axel Finckh

Rheumatol Adv Pract· November 2021

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Implementation of the COVID-19 Vulnerability Index Across an International Network of Health Care Data Sets: Collaborative External Validation Study.
Jenna M Reps, Chungsoo Kim, Ross D Williams, Aniek F Markus, Cynthia Yang, Andrew Williams

JMIR Med Inform· April 2021

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Renin-angiotensin system blockers and susceptibility to COVID-19: an international, open science, cohort analysis.
Daniel R Morales, Mitchell M Conover, Seng Chan You, Nicole Pratt, Kristin Kostka, Andrew E Williams, Ross D Williams

Lancet Digit Health· February 2021

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Renin-angiotensin system blockers and susceptibility to COVID-19: a multinational open science cohort study.
Daniel R Morales, Mitchell M Conover, Seng Chan You, Nicole Pratt, Kristin Kostka, Andrew E Williams, Ross D Williams

medRxiv· June 2020

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Feasibility and evaluation of a large-scale external validation approach for patient-level prediction in an international data network: validation of models predicting stroke in female patients newly diagnosed with atrial fibrillation.
Jenna M Reps, Ross D Williams, Seng Chan You, Thomas Falconer, Evan Minty

BMC Med Res Methodol· May 2020

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Development and validation of a prognostic model predicting symptomatic hemorrhagic transformation in acute ischemic stroke at scale in the OHDSI network.
Qiong Wang, Jenna M Reps, Kristin Feeney Kostka, Patrick B Ryan, Yuhui Zou, Andrew E Williams, Ross D Williams

PLoS One· April 2020

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