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Alexandros Rekkas

Observed names: A. Rekkas, Rekkas, Alexandros, Αλέξανδρος Ρέκκας
ORCID: 0000-0002-5352-943X
Observed ORCID: 0000-0002-5352-943X
OpenAlex ID: A5090900073
Use of unstructured text in prognostic clinical prediction models: a systematic review
2022 · Tom M Seinen, Egill A Fridgeirsson, et al. · Journal of the American Medical Informatics Association · 79
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Predictive approaches to heterogeneous treatment effects: a scoping review
2020 · Alexandros Rekkas, Jessica K. Paulus, et al. · BMC Medical Research Methodology · 77
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Trends in the conduct and reporting of clinical prediction model development and validation: a systematic review
2022 · Cynthia Yang, Jan A Kors, et al. · Journal of the American Medical Informatics Association · 76
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The EORTC-DeCOG nomogram adequately predicts outcomes of patients with sentinel node–positive melanoma without the need for completion lymph node dissection
2020 · Daniëlle Verver, A. Rekkas, et al. · European Journal of Cancer · 22
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A standardized framework for risk-based assessment of treatment effect heterogeneity in observational healthcare databases
2023 · Alexandros Rekkas, David van Klaveren, et al. · npj Digital Medicine · 18
COVID outcome prediction in the emergency department (COPE): using retrospective Dutch hospital data to develop simple and valid models for predicting mortality and need for intensive care unit admission in patients who present at the emergency department with suspected COVID-19
2021 · David van Klaveren, Alexandros Rekkas, et al. · BMJ Open · 18
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Disease misclassification in electronic healthcare database studies: Deriving validity indices—A contribution from the ADVANCE project
2020 · Kaatje Bollaerts, Alexandros Rekkas, et al. · PLoS ONE · 18
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Estimating individualized treatment effects from randomized controlled trials: a simulation study to compare risk-based approaches
2023 · Alexandros Rekkas, Peter R. Rijnbeek, et al. · BMC Medical Research Methodology · 14
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Changes in use and utilisation patterns of drugs with reported shortages between 2010 and 2024 in Europe and North America: a network cohort study
2025 · Marta Pineda-Moncusí, Alexandros Rekkas, et al. · The Lancet Public Health · 8
Effects of pregnancy and short-lasting acute feed restriction on total ghrelin concentration and metabolic parameters in dairy cattle
2017 · Thomas Markos Chouzouris, Eleni Dovolou, et al. · Theriogenology · 8
Trends of use of drugs with suggested shortages and their alternatives across 52 real world data sources and 18 countries in Europe and North America
2024 · Marta Pineda-Moncusí, Alexandros Rekkas, et al. · medRxiv · 2
A standardized framework for risk-based assessment of treatment effect heterogeneity in observational healthcare databases
2020 · Rekkas, Alexandros, van Klaveren, David, et al. · arXiv (Cornell University) · 1
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Feasibility of Causality-Aware Machine Learning for Drug Safety on OMOP-CDM
2026 · Alexandros Rekkas, Nikolas Theologitis, et al. · Studies in health technology and informatics
PEDRO: A Peer-to-Peer Support Platform for Adverse Drug Reaction Management in Patients with CLL
2025 · Christos Timamopoulos, Thomas Chatzikonstantinou, et al. · Studies in health technology and informatics
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Preliminary Results of an OMOP-CDM Based Characterization Study for Rhabdomyolysis in Greece
2025 · Alexandros Rekkas, Anastasia Farmaki, et al. · Studies in health technology and informatics
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Real-World Data in Greece: Mapping the Papageorgiou General Hospital Data to the OMOP Common Data Model
2024 · Grigoris Papapostolou, Achilleas Chytas, et al. · Studies in health technology and informatics
Beyond the average treatment effect
2023 · Αλέξανδρος Ρέκκας
EHDEN - D3.8 - Final Report Pipeline
2022 · Williams, Ross D., Rijnbeek, Peter R, et al. · Zenodo (CERN European Organization for Nuclear Research)
Individualized treatment effect was predicted best by modeling baseline risk in interaction with treatment assignment
2022 · Rekkas, Alexandros, Rijnbeek, Peter R., et al. · arXiv (Cornell University)
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EHDEN - D3.7 - First report on the implementation of selected use cases in the data network
2021 · Rijnbeek, Peter, Rekkas, Alexandros, et al. · Zenodo (CERN European Organization for Nuclear Research)
EHDEN - D3.6 - Third Report Pipeline
2021 · Rijnbeek, Peter, Rekkas, Alexandros, et al. · Zenodo (CERN European Organization for Nuclear Research)
A standardized framework for risk-based assessment of treatment effect heterogeneity in observational healthcare databases
2020 · Rekkas, Alexandros, van Klaveren, David, et al. · arXiv (Cornell University)
EHDEN - D3.1 - Selection of Use Cases for Personalized Medicine
2019 · Rijnbeek, Peter, Kors, Jan, et al. · Zenodo (CERN European Organization for Nuclear Research)
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Works count: 29
Citation count: 349
H-index: 8
I10-index: 8
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