Patrick Ryan

15.3k citations
217 papers · 8.7k indexed · 3 hit papers · h-index 49

Patrick Ryan

208 papers receiving 8.4k citations

Hit Papers

A Harmonized Data Quality Assessment Terminology and Fram...3472011202620162021200400600

Peers

Patrick Ryan
Comparison fields: 5 of 184
  • Toxicology 1.4k
  • Health Information Management 1.1k
  • Health Informatics 222
  • Statistics and Probability 1.2k
  • Geriatrics and Gerontology 288
Replace Martijn J. Schuemie with:
Martijn J. Schuemie United States
George Hripcsak United States
Jeffrey S. Brown United States
Johan van der Lei Netherlands
Joshua C. Denny United States
Nigam H. Shah United States
J. Marc Overhage United States
Miriam Sturkenboom Netherlands
Janet Woodcock United States
Nicole Pratt Australia
Patrick Ryan relative to Martijn J. Schuemie United States Martijn J. Schuemie's profile →
Citations per field
00.5×1.5×
Martijn J. Schuemie · 1×
Citations per year

Countries citing papers authored by Patrick Ryan

Since Specialization
Citations

This map shows the geographic impact of Patrick Ryan's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Patrick Ryan with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Patrick Ryan more than expected).

Fields of papers citing papers by Patrick Ryan

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Patrick Ryan. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Patrick Ryan. The network helps show where Patrick Ryan may publish in the future.

Co-authorship network

The 25 scholars most cited alongside Patrick Ryan, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.

Border = papers with Patrick Ryan Line = papers co-authored together Patrick Ryan links everyone, so they are left out of the graph.

All Works

20 of 20 papers shown
#Work
1 20250
2 20251
3 202442
4 20237
5 20231
6 20231
7 202213
8 20225
9 20224
10 202118
11 202110
12 202152
13 202115
14 2021104
15 202119
16 2018119
17 201885
18
The Impact of Censoring Drug Switching in Medication Adherence Measures of Chronic Single Ingredient Oral Drugs.
20171
19 2016161
20
A double-blind comparison of fenoprofen calcium, acetaminophen, and placebo in the palliative treatment of common nonbacterial upper respiratory infections
19878

About Patrick Ryan

Patrick Ryan is a scholar working on Toxicology, Statistics and Probability, Health Information Management, Geriatrics and Gerontology and Statistics, Probability and Uncertainty, having authored 217 papers that have together received 8.7k indexed citations. Recurring topics across this work include Statistical Methods in Clinical Trials (47 papers), Health Systems, Economic Evaluations, Quality of Life (41 papers), Pharmacovigilance and Adverse Drug Reactions (38 papers), Advanced Causal Inference Techniques (30 papers), Machine Learning in Healthcare (27 papers), Biomedical Text Mining and Ontologies (20 papers), Electronic Health Records Systems (14 papers) and Meta-analysis and systematic reviews (13 papers). The work is most often cited by research in Toxicology (1.4k citations), Health Information Management (1.1k citations), Health Informatics (222 citations), Statistics and Probability (1.2k citations) and Geriatrics and Gerontology (288 citations). Patrick Ryan has collaborated with scholars based in United States, Netherlands and United Kingdom. Frequent co-authors include Martijn J. Schuemie, Paul Stang, Marc A. Suchard, Christian Reich, David Madigan, George Hripcsak, Abraham G. Hartzema, Nigam H. Shah, J. Marc Overhage and David Madigan. Their work appears in journals such as Drug Safety, Journal of the American Medical Informatics Association, Journal of Biomedical Informatics, PLoS ONE and Pharmacoepidemiology and Drug Safety.

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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2026