Thomas P. Leahy

1.1k total citations
22 papers, 105 citations indexed

About

Thomas P. Leahy is a scholar working on Economics and Econometrics, Pulmonary and Respiratory Medicine and Genetics. According to data from OpenAlex, Thomas P. Leahy has authored 22 papers receiving a total of 105 indexed citations (citations by other indexed papers that have themselves been cited), including 7 papers in Economics and Econometrics, 4 papers in Pulmonary and Respiratory Medicine and 4 papers in Genetics. Recurrent topics in Thomas P. Leahy's work include Health Systems, Economic Evaluations, Quality of Life (7 papers), Inflammatory Bowel Disease (3 papers) and Advanced Causal Inference Techniques (3 papers). Thomas P. Leahy is often cited by papers focused on Health Systems, Economic Evaluations, Quality of Life (7 papers), Inflammatory Bowel Disease (3 papers) and Advanced Causal Inference Techniques (3 papers). Thomas P. Leahy collaborates with scholars based in United Kingdom, United States and Switzerland. Thomas P. Leahy's co-authors include Cormac Sammon, Sreeram V Ramagopalan, Sreeram V Ramagopalan, Matthew D. Palmer, N. Robinson, Joshua Ray, Samantha Wilkinson, Sandro Gsteiger, Vivek Subbiah and Richard Grieve and has published in prestigious journals such as Journal of Clinical Oncology, SHILAP Revista de lepidopterología and Blood.

In The Last Decade

Thomas P. Leahy

18 papers receiving 103 citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name	h						Papers	Cites
Thomas P. Leahy United Kingdom	7	37	19	13	12	12	22	105
Catherine Hajek United States	7	25 0.7×	10 0.5×	7 0.5×	28 2.3×		22	160
Katherine M Soltys United States	3	54 1.5×	17 0.9×	40 3.1×	7 0.6×		3	123
Iris Cohn Canada	7	13 0.4×	5 0.3×	7 0.5×	19 1.6×		19	144
Iréne Norstedt Belgium	4	29 0.8×	4 0.2×	6 0.5×	34 2.8×		5	131
Michelle Ramos Brazil	7	32 0.9×	5 0.3×	6 0.5×	9 0.8×		11	168
Fabrício S. P. Kury United States	6	13 0.4×	7 0.4×	15 1.2×	76 6.3×		12	164
Emma Perez United States	3	13 0.4×	4 0.2×	6 0.5×	11 0.9×		9	98
Katharina Beyer United Kingdom	7	32 0.9×	10 0.5×	64 4.9×	7 0.6×		29	153
Frederieke H. van der Baan Netherlands	7	4 0.1×	10 0.5×	41 3.2×	5 0.4×		18	106
Vipul Devas United States	3	18 0.5×	9 0.5×	137 10.5×	31 2.6×		7	189

Countries citing papers authored by Thomas P. Leahy

Since Specialization

Citations

This map shows the geographic impact of Thomas P. Leahy'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 Thomas P. Leahy with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Thomas P. Leahy more than expected).

Fields of papers citing papers by Thomas P. Leahy

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Thomas P. Leahy. 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 Thomas P. Leahy. The network helps show where Thomas P. Leahy may publish in the future.

Co-authorship network of co-authors of Thomas P. Leahy

This figure shows the co-authorship network connecting the top 25 collaborators of Thomas P. Leahy. A scholar is included among the top collaborators of Thomas P. Leahy based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Thomas P. Leahy. Thomas P. Leahy is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

Jairath, Vipul, Tim Raine, Thomas P. Leahy, et al.. (2025). Matching-adjusted indirect comparisons of efficacy outcomes between etrasimod and ozanimod for moderately to severely active ulcerative colitis. Journal of Comparative Effectiveness Research. 14(4). e240193–e240193.

Jairath, Vipul, Tim Raine, Thomas P. Leahy, et al.. (2025). Efficacy and safety of advanced therapies for moderately to severely active ulcerative colitis in induction and maintenance: systematic literature review and Bayesian network meta-analysis. Journal of Comparative Effectiveness Research. 14(5). e240225–e240225. 3 indexed citations

Lai, Catherine, et al.. (2025). Effectiveness of olutasidenib versus ivosidenib in patients with mutated isocitrate dehydrogenase 1 acute myeloid leukemia who are relapsed or refractory to venetoclax: the 2102-HEM-101 trial versus a US electronic health record-based external control arm. Leukemia & lymphoma. 66(10). 1821–1832. 2 indexed citations

Leahy, Thomas P., et al.. (2024). A comparison of cenobamate with other newer antiseizure medications for adjunctive treatment of focal-onset seizures: A systematic review and network meta-analysis. Seizure. 118. 80–90. 9 indexed citations

Leahy, Thomas P., et al.. (2024). Atracurium-Induced Bronchospasm With Flat Capnograph at Induction of General Anaesthesia: A Case Report. Cureus. 16(2). e54251–e54251.

Jairath, Vipul, et al.. (2024). P849 Bayesian network meta-analysis of the efficacy of advanced therapies for patients with moderately to severely active ulcerative colitis naïve to advanced therapy. Journal of Crohn s and Colitis. 18(Supplement_1). i1566–i1567. 2 indexed citations

Lai, Catherine, et al.. (2024). Effectiveness of Olutasidenib Versus Ivosidenib in Patients with Mutated Isocitrate Dehydrogenase 1 Acute Myeloid Leukemia Who Are Relapsed or Refractory to Venetoclax: The 2102-HEM-101 Trial Versus a US Electronic Health Record-Based External Control Arm. Blood. 144(Supplement 1). 1525–1525. 2 indexed citations

Leahy, Thomas P., Isabelle Durand‐Zaleski, Laura Sampietro-Colom, et al.. (2023). The role of quantitative bias analysis for nonrandomized comparisons in health technology assessment: recommendations from an expert workshop. International Journal of Technology Assessment in Health Care. 39(1). e68–e68.

Leahy, Thomas P., Alex Simpson, Cormac Sammon, Clive Ballard, & Sandro Gsteiger. (2023). Estimating the prevalence of diagnosed Alzheimer disease in England across deprivation groups using electronic health records: a clinical practice research datalink study. BMJ Open. 13(10). e075800–e075800. 2 indexed citations

10.

Leahy, Thomas P., Seamus Kent, Cormac Sammon, et al.. (2022). Unmeasured confounding in nonrandomized studies: quantitative bias analysis in health technology assessment. Journal of Comparative Effectiveness Research. 11(12). 851–859. 14 indexed citations

11.

Leahy, Thomas P.. (2021). Copula approach for simulated damages caused by landfalling US hurricanes. SHILAP Revista de lepidopterología. 7(1). 1–11. 2 indexed citations

12.

Ramagopalan, Sreeram V, Thomas P. Leahy, Joshua Ray, et al.. (2021). The value of innovation: association between improvements in survival of advanced and metastatic non-small cell lung cancer and targeted and immunotherapy. BMC Medicine. 19(1). 209–209. 16 indexed citations

13.

Ramagopalan, Sreeram V, Thomas P. Leahy, Joshua Ray, et al.. (2021). Association between improvements in survival of metastatic NSCLC patients and targeted- and immuno-therapy.. Journal of Clinical Oncology. 39(15_suppl). 9090–9090. 2 indexed citations

14.

Leahy, Thomas P., Sreeram V Ramagopalan, & Cormac Sammon. (2020). The use of UK primary care databases in health technology assessments carried out by the National Institute for health and care excellence (NICE). BMC Health Services Research. 20(1). 675–675. 8 indexed citations

15.

Sammon, Cormac, Thomas P. Leahy, & Sreeram V Ramagopalan. (2020). Nonindependence of patient data in the clinical practice research datalink: a case study in atrial fibrillation patients. Journal of Comparative Effectiveness Research. 9(6). 395–403. 4 indexed citations

16.

Ramagopalan, Sreeram V, Thomas P. Leahy, Elaine Stamp, & Cormac Sammon. (2020). Approaches for the identification of chronic kidney disease in CPRD–HES-linked studies. Journal of Comparative Effectiveness Research. 9(7). 441–446. 6 indexed citations

17.

Sammon, Cormac, Thomas P. Leahy, Sandro Gsteiger, & Sreeram V Ramagopalan. (2020). Real-world evidence and nonrandomized data in health technology assessment: using existing methods to address unmeasured confounding?. Journal of Comparative Effectiveness Research. 9(14). 969–972. 12 indexed citations

18.

Leahy, Thomas P., et al.. (2019). PMU109 HOW DO NICE EVIDENCE REVIEW GROUPS AND APPRAISAL COMMITTEES PERCEIVE FRACTIONAL POLYNOMIAL METHODOLOGY IN TECHNOLOGY APPRAISALS?. Value in Health. 22. S727–S727.

19.

Leahy, Thomas P., Sreeram V Ramagopalan, & Cormac Sammon. (2019). PMU108 LEVERAGING ELECTRONIC HEALTH RECORDS TO MEET THE REAL-WORLD EVIDENCE NEEDS OF HTA: A UK PERSPECTIVE. Value in Health. 22. S726–S727. 1 indexed citations

20.

Leahy, Thomas P., et al.. (2018). Using Neural Networks to Correct Historical Climate Observations. Journal of Atmospheric and Oceanic Technology. 35(10). 2053–2059. 15 indexed citations

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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