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Applying two approaches to detect unmeasured confounding due to time-varying variables in a self-controlled risk interval design evaluating COVID-19 vaccine safety signals, using myocarditis as a case example2024 American Journal of Epidemiology article Pharmacology, Toxicology and Pharmaceutics Pharmacovigilance and Adverse Drug Reactions Open access
Sophie H. Bots, Svetlana V. Belitser, Rolf H. H. Groenwold, Carlos E. Durán, Judit Riera‐Arnau, Anna Schultze, +16 more
5citations -
Confounding adjustment in observational studies on cardiothoracic interventions: a systematic review of methodological practice2023 European Journal of Cardio-Thoracic Surgery review Mathematics Advanced Causal Inference Techniques Open access
Bart J.J. Velders, J.W. Taco Boltje, Michiel D. Vriesendorp, Robert J.M. Klautz, Saskia le Cessie, Rolf H. H. Groenwold
1citations -
Identification of potential confounding factors for the evaluation of clinical outcomes in alpha-1-antitrypsin deficiency-associated liver disease2025 Journal of Medicine Surgery and Public Health article Medicine Liver Disease Diagnosis and Treatment Open access
Heiner Wedemeyer, Frank Tacke, Christoph P. Berg, Pavel Strnad, Andreas Hahn, Thomas Welsh, +3 more
0citations -
Clinical equipoise as inclusion criterion to control for confounding in observational studies2026 German Medical Science (German Research Foundation) conference-paper Mathematics Advanced Causal Inference Techniques Open access
Bryan Van de Wall, Niels V. van der Hoeven, Frank Beeres, Björn-Christian Link, Rolf H. H. Groenwold
0citations -
Application of quantitative bias analysis for unmeasured confounding in cost–effectiveness modelling2022 Journal of Comparative Effectiveness Research article Mathematics Advanced Causal Inference Techniques Open access
Thomas P. Leahy, Stephen J. Duffield, Seamus Kent, Cormac Sammon, Dimitrios Tzelis, Joshua A. Ray, +4 more
6citations -
A weighting method for simultaneous adjustment for confounding and joint exposure-outcome misclassifications2020 Statistical Methods in Medical Research article Mathematics Advanced Causal Inference Techniques Open access
Bas B. L. Penning de Vries, Maarten van Smeden, Rolf H. H. Groenwold
2citations -
Preventing confounding in observational studies in orthopedic trauma surgery through expert panels: a systematic review2025 European Journal of Trauma and Emergency Surgery review Mathematics Advanced Causal Inference Techniques Open access
Rolf H. H. Groenwold, Luke X. van Rossenberg, Diederik P.J. Smeeing, Roderick Marijn Houwert, Jan W. Schoones, Sander P. J. Muijs, +3 more
2citations -
Unmeasured confounding in nonrandomized studies: quantitative bias analysis in health technology assessment2022 Journal of Comparative Effectiveness Research article Mathematics Advanced Causal Inference Techniques Open access
Thomas P. Leahy, Seamus Kent, Cormac Sammon, Rolf H. H. Groenwold, Richard Grieve, Sreeram V Ramagopalan, +1 more
27citations -
Confounding factors in breast magnetic resonance fingerprinting: , slice profile, and diffusion effects2020 Magnetic Resonance in Medicine article Medicine Advanced MRI Techniques and Applications Open access
Teresa Nolte, Hannah Scholten, Nicolas Groß‐Weege, Thomas Amthor, Peter Koken, Mariya Doneva, +1 more
2citations -
Confounding effects of blood hemoglobin and hematocrit levels on flap perfusion measurement with the Oxygen-to-see (O2C) analysis system in microvascular head and neck reconstruction– a retrospective study
Mark Ooms, Philipp Winnand, Marius Heitzer, Anna Bock, Marie Sophie Katz, Johannes Bickenbach, +2 more
1citations -
Flap size as a confounding variable in flap perfusion measurement with the Oxygen-to-see (O2C) analysis system in microvascular head and neck reconstruction – a retrospective analysis2025 Clinical Oral Investigations article Medicine Reconstructive Surgery and Microvascular Techniques Open access
Mark Ooms, Philipp Winnand, Marius Heitzer, Anna Bock, Marie Sophie Katz, Johannes Bickenbach, +2 more
0citations