default search action
Patrick B. Ryan
Person information
Refine list
refinements active!
zoomed in on ?? of ?? records
view refined list in
export refined list as
showing all ?? records
2020 – today
- 2024
- [j46]Christian G. Reich
, Anna Ostropolets, Patrick B. Ryan, Peter R. Rijnbeek, Martijn J. Schuemie, Alexander Davydov, Dmitry Dymshyts, George Hripcsak:
OHDSI Standardized Vocabularies - a large-scale centralized reference ontology for international data harmonization. J. Am. Medical Informatics Assoc. 31(3): 583-590 (2024) - 2023
- [j45]Anna Ostropolets
Reproducible variability: assessing investigator discordance across 9 research teams attempting to reproduce the same observational study. J. Am. Medical Informatics Assoc. 30(5): 859-868 (2023) - [j44]Anna Ostropolets
Scalable and interpretable alternative to chart review for phenotype evaluation using standardized structured data from electronic health records. J. Am. Medical Informatics Assoc. 31(1): 119-129 (2023) - [j43]Vipina Kuttichi Keloth, Juan M. Banda, Michael J. Gurley, Paul M. Heider, Georgina Kennedy, Hongfang Liu, Feifan Liu, Timothy A. Miller, Karthik Natarajan, Olga V. Patterson, Yifan Peng, Kalpana Raja, Ruth M. Reeves
Representing and utilizing clinical textual data for real world studies: An OHDSI approach. J. Biomed. Informatics 142: 104343 (2023) - [j42]Qiong Wu
Padé approximant meets federated learning: A nearly lossless, one-shot algorithm for evidence synthesis in distributed research networks with rare outcomes. J. Biomed. Informatics 145: 104476 (2023) - [j41]Stephen P. Fortin, Jenna Reps, Patrick B. Ryan:
Correction to: Adaptation and validation of a coding algorithm for the Charlson Comorbidity Index in administrative claims data using the SNOMED CT standardized vocabulary. BMC Medical Informatics Decis. Mak. 23(1): 109 (2023) - [j40]Tiffany J. Callahan
Ontologizing health systems data at scale: making translational discovery a reality. npj Digit. Medicine 6 (2023) - [j39]Alexandros Rekkas
A standardized framework for risk-based assessment of treatment effect heterogeneity in observational healthcare databases. npj Digit. Medicine 6 (2023) - [i3]Tiffany J. Callahan, Ignacio J. Tripodi, Adrianne L. Stefanski, Luca Cappelletti, Sanya Bathla Taneja, Jordan M. Wyrwa, Elena Casiraghi
An Open-Source Knowledge Graph Ecosystem for the Life Sciences. CoRR abs/2307.05727 (2023) - 2022
- [j38]Luis H. John, Jan A. Kors, Jenna Marie Reps, Patrick B. Ryan, Peter R. Rijnbeek:
Logistic regression models for patient-level prediction based on massive observational data: Do we need all data? Int. J. Medical Informatics 163: 104762 (2022) - [j37]Joel N. Swerdel, Martijn J. Schuemie, Gayle Murray, Patrick B. Ryan:
PheValuator 2.0: Methodological improvements for the PheValuator approach to semi-automated phenotype algorithm evaluation. J. Biomed. Informatics 135: 104177 (2022) - [j36]Jenna Marie Reps, Ross D. Williams
Learning patient-level prediction models across multiple healthcare databases: evaluation of ensembles for increasing model transportability. BMC Medical Informatics Decis. Mak. 22(1): 142 (2022) - [j35]Stephen P. Fortin, Jenna Reps, Patrick B. Ryan:
Adaptation and validation of a coding algorithm for the Charlson Comorbidity Index in administrative claims data using the SNOMED CT standardized vocabulary. BMC Medical Informatics Decis. Mak. 22(1): 261 (2022) - [c22]Anna Ostropolets, Patrick B. Ryan, George Hripcsak:
Phenotyping in distributed data networks: selecting the right codes for the right patients. AMIA 2022 - [i2]Tiffany J. Callahan, Adrianne L. Stefanski, Jordan M. Wyrwa, Chenjie Zeng, Anna Ostropolets, Juan M. Banda, William A. Baumgartner Jr., Richard D. Boyce, Elena Casiraghi, Ben D. Coleman, Janine H. Collins, Sara J. Deakyne Davies, James A. Feinstein
Ontologizing Health Systems Data at Scale: Making Translational Discovery a Reality. CoRR abs/2209.04732 (2022) - 2021
- [j34]Jae Hyun Kim
Towards clinical data-driven eligibility criteria optimization for interventional COVID-19 clinical trials. J. Am. Medical Informatics Assoc. 28(1): 14-22 (2021) - [j33]Martijn J. Schuemie, Patrick B. Ryan, Nicole Pratt, Ruijun Chen
Erratum to: Large-Scale Evidence Generation and Evaluation across a Network of Databases (LEGEND): Assessing Validity Using Hypertension as a Case Study. J. Am. Medical Informatics Assoc. 28(1): 196 (2021) - [j32]Anna Ostropolets
Data Consult Service: Can we use observational data to address immediate clinical needs? J. Am. Medical Informatics Assoc. 28(10): 2139-2146 (2021) - [j31]Clair Blacketer
Increasing trust in real-world evidence through evaluation of observational data quality. J. Am. Medical Informatics Assoc. 28(10): 2251-2257 (2021) - [j30]Chi Yuan, Patrick B. Ryan, Casey N. Ta, Jae Hyun Kim, Ziran Li, Chunhua Weng
From clinical trials to clinical practice: How long are drugs tested and then used by patients? J. Am. Medical Informatics Assoc. 28(11): 2456-2460 (2021) - [j29]Jenna Marie Reps
Design matters in patient-level prediction: evaluation of a cohort vs. case-control design when developing predictive models in observational healthcare datasets. J. Big Data 8(1): 108 (2021) - [j28]Amelia J. Averitt, Patrick B. Ryan, Chunhua Weng
A conceptual framework for external validity. J. Biomed. Informatics 121: 103870 (2021) - [j27]Jenna Marie Reps
An empirical analysis of dealing with patients who are lost to follow-up when developing prognostic models using a cohort design. BMC Medical Informatics Decis. Mak. 21(1): 43 (2021) - [c21]Anna Ostropolets, Patrick B. Ryan, George Hripcsak:
PHenotype Observed Entity Baseline Endorsements (PHOEBE) - recommender system for concept selection in phenotype algorithm development. AMIA 2021 - 2020
- [j26]Martijn J. Schuemie
Large-scale evidence generation and evaluation across a network of databases (LEGEND): assessing validity using hypertension as a case study. J. Am. Medical Informatics Assoc. 27(8): 1268-1277 (2020) - [j25]Martijn J. Schuemie
Principles of Large-scale Evidence Generation and Evaluation across a Network of Databases (LEGEND). J. Am. Medical Informatics Assoc. 27(8): 1331-1337 (2020) - [j24]Anna Ostropolets
Adapting electronic health records-derived phenotypes to claims data: Lessons learned in using limited clinical data for phenotyping. J. Biomed. Informatics 102: 103363 (2020) - [j23]Amelia J. Averitt
Translating evidence into practice: eligibility criteria fail to eliminate clinically significant differences between real-world and study populations. npj Digit. Medicine 3 (2020) - [c20]Ruijun Chen, Martijn J. Schuemie, Marc A. Suchard, Anna Ostropolets, Linying Zhang, Patrick B. Ryan, George Hripcsak:
Evaluation of Large-scale Propensity Score Modeling and Covariate Balance on Potential Unmeasured Confounding in Observational Research. AMIA 2020 - [c19]Anna Ostropolets, Christian G. Reich, Patrick B. Ryan, Chunhua Weng, Anthony Molinaro, Frank J. DeFalco, Jitendra Jonnagaddala, Siaw-Teng Liaw, Hokyun Jeon, Rae Woong Park, Matthew E. Spotnitz, Karthik Natarajan, Kristin Kostka, George Argyriou, Robert T. Miller, Andrew E. Williams, Evan Minty, José D. Posada, George Hripcsak:
Characterizing database granularity using SNOMED-CT hierarchy. AMIA 2020 - [c18]Chao Pang, Ruijun Chen, Harry Reyes Nieva, Krishna Kalluri, Tony Sun, Xinzhuo Jiang, Victor Alfonso Rodriguez, Patrick B. Ryan, Karthik Natarajan:
Characterization and Comparison of Embedding Algorithms for Phenotyping across a Network of Observational Databases. AMIA 2020 - [c17]Victor Alfonso Rodriguez, Tony Sun, Phyllis Thangaraj, Chao Pang, Krishna Kalluri, Xinzhuo Jiang, Karthik Natarajan, Patrick B. Ryan, Anna Ostropolets, Ruijun Chen:
Phenotype Concept Set Construction from Concept Pair Likelihoods. AMIA 2020 - [c16]James R. Rogers, Junghwan Lee, Ziheng Zhou, Patrick B. Ryan, George Hripcsak, Chunhua Weng:
Contemporary Use of Real World Data for Clinical Trial Conduct. AMIA 2020 - [i1]Luis H. John, Jan A. Kors, Jenna Marie Reps, Patrick B. Ryan, Peter R. Rijnbeek:
How little data do we need for patient-level prediction? CoRR abs/2008.07361 (2020)
2010 – 2019
- 2019
- [j22]Chi Yuan, Patrick B. Ryan, Casey N. Ta, Yixuan Guo, Ziran Li, Jill Hardin, Rupa Makadia, Peng Jin
Criteria2Query: a natural language interface to clinical databases for cohort definition. J. Am. Medical Informatics Assoc. 26(4): 294-305 (2019) - [j21]Fernanda C. Polubriaginof
Challenges with quality of race and ethnicity data in observational databases. J. Am. Medical Informatics Assoc. 26(8-9): 730-736 (2019) - [j20]Jenna Marie Reps
Supplementing claims data analysis using self-reported data to develop a probabilistic phenotype model for current smoking status. J. Biomed. Informatics 97 (2019) - [j19]Joel N. Swerdel
PheValuator: Development and evaluation of a phenotype algorithm evaluator. J. Biomed. Informatics 97 (2019) - [c15]Noémie Elhadad, Iñigo Urteaga, Alison Callahan, Jenna Reps, Patrick B. Ryan:
Learning Across a Healthcare Data Network to Improve Model Robustness and Evidence Reliability. AMIA 2019 - 2018
- [j18]Anando Sen
The representativeness of eligible patients in type 2 diabetes trials: a case study using GIST 2.0. J. Am. Medical Informatics Assoc. 25(3): 239-247 (2018) - [j17]Mary Regina Boland
Uncovering exposures responsible for birth season - disease effects: a global study. J. Am. Medical Informatics Assoc. 25(3): 275-288 (2018) - [j16]Cole Brokamp
Decentralized and reproducible geocoding and characterization of community and environmental exposures for multisite studies. J. Am. Medical Informatics Assoc. 25(3): 309-314 (2018) - [j15]Jenna Marie Reps
Design and implementation of a standardized framework to generate and evaluate patient-level prediction models using observational healthcare data. J. Am. Medical Informatics Assoc. 25(8): 969-975 (2018) - [j14]George Hripcsak, Matthew E. Levine
Effect of vocabulary mapping for conditions on phenotype cohorts. J. Am. Medical Informatics Assoc. 25(12): 1618-1625 (2018) - [c14]Ruijun Chen, Patrick B. Ryan, Karthik Natarajan, Thomas Falconer, Christian G. Reich, Rohit Vashisht, Nigam Shah, George Hripcsak:
Treatment Pathways in Patients with Cancer Using a Large-scale Observational Data Network. AMIA 2018 - 2017
- [j13]Richard D. Boyce, Erica A. Voss
Large-scale adverse effects related to treatment evidence standardization (LAERTES): an open scalable system for linking pharmacovigilance evidence sources with clinical data. J. Biomed. Semant. 8(1): 11:1-11:15 (2017) - [j12]Erica A. Voss
Accuracy of an automated knowledge base for identifying drug adverse reactions. J. Biomed. Informatics 66: 72-81 (2017) - [j11]Robert Moskovitch
Procedure prediction from symbolic Electronic Health Records via time intervals analytics. J. Biomed. Informatics 75: 70-82 (2017) - [c13]Jon D. Duke, George Hripcsak, Patrick B. Ryan, Nigam Shah:
From Large-Scale Network Analytics to Clinical Solutions in OHDSI. AMIA 2017 - [c12]Chi Yuan, Patrick B. Ryan, Yixuan Guo, Peng Jin, Tian Kang, Chunhua Weng:
Criteria2Query: Automatically Transforming Clinical Research Eligibility Criteria Text to OMOP Common Data Model (CDM)-based Cohort Queries. AMIA 2017 - [c11]Vivienne J. Zhu, J. Marc Overhage, Qianli Ma, Patrick B. Ryan:
The Impact of Censoring Drug Switching in Medication Adherence Measures of Chronic Single Ingredient Oral Drugs. MedInfo 2017: 1200-1204 - 2016
- [j10]Zhe He
Multivariate analysis of the population representativeness of related clinical studies. J. Biomed. Informatics 60: 66-76 (2016) - [j9]Anando Sen
GIST 2.0: A scalable multi-trait metric for quantifying population representativeness of individual clinical studies. J. Biomed. Informatics 63: 325-336 (2016) - [j8]Trevor R. Shaddox, Patrick B. Ryan, Martijn J. Schuemie, David Madigan, Marc A. Suchard:
Hierarchical models for multiple, rare outcomes using massive observational healthcare databases. Stat. Anal. Data Min. 9(4): 260-268 (2016) - [c10]Jon D. Duke, Nigam H. Shah, George Hripcsak, Patrick B. Ryan:
Ensuring Reproducibility in Observational Research: Building and Sharing Knowledge Resources in the OHDSI Network. AMIA 2016 - [c9]Jianying Hu, Nigam H. Shah, Bradley A. Malin, Patrick B. Ryan, Anil Jain:
Big Data for Healthcare and Life Sciences: Learning Useful Insights from Imperfect Data. AMIA 2016 - [c8]Jon D. Duke, George Hripcsak, Nigam Shah, Patrick B. Ryan, Vojtech Huser:
Observational Health Data Sciences and Informatics (OHDSI): A Rapidly Growing International Network for Open Science and Data Analytics in Healthcare. CRI 2016 - [c7]Ning Shang, George Hripcsak, Patrick B. Ryan, Chunhua Weng:
The Applicability of an EHR Phenotype for Cohort Identification. CRI 2016 - 2015
- [j7]Erica A. Voss, Rupa Makadia, Amy Matcho
Feasibility and utility of applications of the common data model to multiple, disparate observational health databases. J. Am. Medical Informatics Assoc. 22(3): 553-564 (2015) - [j6]Zach Shahn, Patrick B. Ryan, David Madigan:
Predicting health outcomes from high-dimensional longitudinal health histories using relational random forests. Stat. Anal. Data Min. 8(2): 128-136 (2015) - [c6]Zhe He, Praveen Chandar Ravichandran, Patrick B. Ryan, Chunhua Weng:
Simulation-based Evaluation of the Generalizability Index for Study Traits. AMIA 2015 - [c5]Jon D. Duke, Frank J. DeFalco, Chris Knoll, Vojtech Huser, Richard D. Boyce, Patrick B. Ryan:
OHDSI: An Open-Source Platform for Observational Data Analytics and Collaborative Research. AMIA 2015 - [c4]Jon D. Duke, George Hripcsak, Nigam Shah, Patrick B. Ryan:
The Value of an Open-Source Observational Research Collaboratory: Results from the OHDSI Initiative. AMIA 2015 - [c3]George Hripcsak, Jon D. Duke, Nigam H. Shah, Christian G. Reich, Vojtech Huser, Martijn J. Schuemie, Marc A. Suchard, Rae Woong Park, Ian Chi Kei Wong
Observational Health Data Sciences and Informatics (OHDSI): Opportunities for Observational Researchers. MedInfo 2015: 574-578 - 2014
- [j5]Tyler H. McCormick
Big data, big results: Knowledge discovery in output from large-scale analytics. Stat. Anal. Data Min. 7(5): 404-412 (2014) - [c2]Vivienne J. Zhu, Rupa Makadia, Amy Matcho, Martijn J. Schuemie, Patrick B. Ryan:
Transforming NHANES Database to the OMOP Common Data Model. AMIA 2014 - 2013
- [j4]Marc A. Suchard, Shawn E. Simpson, Ivan Zorych, Patrick B. Ryan, David Madigan:
Massive Parallelization of Serial Inference Algorithms for a Complex Generalized Linear Model. ACM Trans. Model. Comput. Simul. 23(1): 10:1-10:17 (2013) - [c1]Vivienne J. Zhu, Patrick B. Ryan, J. Marc Overhage, Paul E. Stang, Jesse Berlin:
Developing a Systematic Approach to Measure Medication Adherence. AMIA 2013 - 2012
- [j3]J. Marc Overhage
Validation of a common data model for active safety surveillance research. J. Am. Medical Informatics Assoc. 19(1): 54-60 (2012) - [j2]Christian G. Reich, Patrick B. Ryan, Paul E. Stang, Mitra Rocca:
Evaluation of alternative standardized terminologies for medical conditions within a network of observational healthcare databases. J. Biomed. Informatics 45(4): 689-696 (2012) - 2010
- [j1]Stephanie J. Reisinger, Patrick B. Ryan, Donald J. O'Hara, Gregory E. Powell, Jeffery L. Painter, Edward N. Pattishall, Jonathan A. Morris:
Development and evaluation of a common data model enabling active drug safety surveillance using disparate healthcare databases. J. Am. Medical Informatics Assoc. 17(6): 652-662 (2010)
Coauthor Index
manage site settings
To protect your privacy, all features that rely on external API calls from your browser are turned off by default. You need to opt-in for them to become active. All settings here will be stored as cookies with your web browser. For more information see our F.A.Q.
Unpaywalled article links
Add open access links from to the list of external document links (if available).
Privacy notice: By enabling the option above, your browser will contact the API of unpaywall.org to load hyperlinks to open access articles. Although we do not have any reason to believe that your call will be tracked, we do not have any control over how the remote server uses your data. So please proceed with care and consider checking the Unpaywall privacy policy.
Archived links via Wayback Machine
For web page which are no longer available, try to retrieve content from the of the Internet Archive (if available).
Privacy notice: By enabling the option above, your browser will contact the API of archive.org to check for archived content of web pages that are no longer available. Although we do not have any reason to believe that your call will be tracked, we do not have any control over how the remote server uses your data. So please proceed with care and consider checking the Internet Archive privacy policy.
Reference lists
Add a list of references from ,
, and
to record detail pages.
load references from crossref.org and opencitations.net
Privacy notice: By enabling the option above, your browser will contact the APIs of crossref.org, opencitations.net, and semanticscholar.org to load article reference information. Although we do not have any reason to believe that your call will be tracked, we do not have any control over how the remote server uses your data. So please proceed with care and consider checking the Crossref privacy policy and the OpenCitations privacy policy, as well as the AI2 Privacy Policy covering Semantic Scholar.
Citation data
Add a list of citing articles from and
to record detail pages.
load citations from opencitations.net
Privacy notice: By enabling the option above, your browser will contact the API of opencitations.net and semanticscholar.org to load citation information. Although we do not have any reason to believe that your call will be tracked, we do not have any control over how the remote server uses your data. So please proceed with care and consider checking the OpenCitations privacy policy as well as the AI2 Privacy Policy covering Semantic Scholar.
OpenAlex data
Load additional information about publications from .
Privacy notice: By enabling the option above, your browser will contact the API of openalex.org to load additional information. Although we do not have any reason to believe that your call will be tracked, we do not have any control over how the remote server uses your data. So please proceed with care and consider checking the information given by OpenAlex.
last updated on 2024-08-05 21:19 CEST by the dblp team
all metadata released as open data under CC0 1.0 license
see also: Terms of Use | Privacy Policy | Imprint
dblp was originally created in 1993 at:
since 2018, dblp has been operated and maintained by:
the dblp computer science bibliography is funded and supported by: