A. James O’Malley

19.7k citations

314 papers · 13.0k indexed · 5 hit papers · h-index 57

Impact in

General Health Professions top 0.2%
- Patient Satisfaction in Healthcare
- Primary Care and Health Outcomes
Cardiology and Cardiovascular Medicine top 0.5%
- Cardiac, Anesthesia and Surgical Outcomes

Papers in

Statistics and Probability 41
General Health Professions 119
- Patient Satisfaction in Healthcare 37
- Primary Care and Health Outcomes 35
- Patient-Provider Communication in Healthcare 32

Co-authors: Nancy L. Keating Bruce E. Landon Laura Mauri Kelly H. Zou Matthew R. Smith Nicholas A. Christakis Philip Cotterill David C. Grabowski
Journals: Journal of Vascular Surgery (19 papers)Health Services Research (17 papers)JAMA Network Open (13 papers)Statistics in Medicine (13 papers)Medical Care (12 papers)
Partner nations: United States United Kingdom Israel

In The Last Decade

A. James O’Malley

297 papers receiving 12.6k citations

Hit Papers

5 papers align trajectories log scale

Breast-Cancer Tumor Size, Overdiagnosis, and Mammography Screening Effectiveness 2016 · 458 citations

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if any of the following hold:

it has ≥500 total citations;
it reaches ≥1.5× the top-1% citation threshold for papers in the same subfield and year (the threshold is the minimum needed to enter the top 1%, not the average within it);
it reaches the top citation threshold in at least one of its specific research topics.

2016 New England Journal of Medicine
2015 New England Journal of Medicine
2008 New England Journal of Medicine
2007 Circulation
2006 Journal of Clinical Oncology

Peers

Countries citing papers authored by A. James O’Malley

Since Specialization

Citations

This map shows the geographic impact of A. James O’Malley'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 A. James O’Malley with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites A. James O’Malley more than expected).

Fields of papers citing papers by A. James O’Malley

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by A. James O’Malley. 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 A. James O’Malley. The network helps show where A. James O’Malley may publish in the future.

Co-authors

The 25 scholars most cited alongside A. James O’Malley, 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 A. James O’Malley Line = papers co-authored together A. James O’Malley links everyone, so they are left out of the graph.

All Works

Sort: Min cites: Since: Top N: Style:

20 of 20 papers shown

#	Work
1	A Bayesian zero-inflated spatially varying coefficients model for overdispersed binomial data Journal of the Royal Statistical Society Series A (Statistics in Society) ·喜永加藤, Rajib Paul, Kelly J. Hunt, A. James O’Malley, Hongli Li, Elizabeth G. Hill, Angela M. Malek, Brian Neelon	2025	0
2	Hidden figures underlying quality measures: revealing hidden racial inequalities in end-of-life cancer care delivery: a cohort study The Lancet Regional Health - Americas ·Inas S. Khayal, Jone Idsø, Gabriel A. Brooks, Amber E. Barnato, 達也関, Terri Lewinson, Amro M. Farid, A. James O’Malley	2025	0
3	Network spillover effects associated with the ChooseWell 365 workplace randomized controlled trial to promote healthy food choices Social Science & Medicine ·Mark C. Pachucki, June Reinisch, A. James O’Malley, Douglas E. Levy, Anne N. Thorndike	2024	1
4	Rural–urban disparities in health care delivery for children with medical complexity and moderating effects of payer, disability, and community poverty The Journal of Rural Health ·麻里伊藤, Seneca D. Freyleue, Andrew Schaefer, Andrea M. Austin, Erika L. Moen, A. James O’Malley, David C. Goodman, JoAnna K. Leyenaar	2024	8
5	A Quality Improvement Initiative for Inpatient Advance Care Planning JAMA Health Forum ·Albiero Al, Megan Murphy, A. James O’Malley, Nancy J. O. Birkmeyer, Amber E. Barnato	2024	2
6	Effectiveness of Direct Admission Compared to Admission Through the Emergency Department: A Stepped-Wedge Cluster-Randomized Trial PEDIATRICS ·JoAnna K. Leyenaar, Stephanie C. Acquilano, Seneca D. Freyleue, Andrew Schaefer, Corrie E. McDaniel, Benoît Collombat, Güliz Erdem, Maxime Tremblin, Christopher Fontes -Los, Kazuyuki, K. Fiedler, Françoise Bastien Rabner, Amy J. Houtrow, Martha L. Bruce, A. James O’Malley	2024	1
7	The feasibility of sharing digital audio-recordings of clinic visits online with older adults in primary care settings: A multisite trial Patient Education and Counseling ·Paul Barr, Meredith Masel, L. C. Lee, Elizabeth Carpenter–Song, A. James O’Malley, Martha L. Bruce, James S. Goodwin, Sunil Kripalani, Demco Dan Eugen, Gaetan Christien, Daniel Häring, Adam Wright, Mukaila A. Raji, Jeroen Snelders, Pawan Goyal, Kerri L. Cavanaugh	2024	1
8	Pediatric Hospitalizations at Rural and Urban Teaching and Nonteaching Hospitals in the US, 2009-2019 JAMA Network Open ·JoAnna K. Leyenaar, Seneca D. Freyleue, 麻里伊藤, David C. Goodman, A. James O’Malley	2023	21
9	A novel causal mediation analysis approach for zero‐inflated mediators Statistics in Medicine ·Monikasari Monikasari, Seonjoo Lee, A. James O’Malley, Yaakov Stern, Zhigang Li	2023	5
10	Comparative Effectiveness of Left Atrial Appendage Occlusion Versus Oral Anticoagulation by Sex Circulation ·Emily P. Zeitler, Stephen Kearing, Megan Coylewright, Devi G. Nair, Jonathan C. Hsu, Douglas Darden, A. James O’Malley, Andrea M. Russo, Sana M. Al‐Khatib	2023	16
11	The role of comorbidities, medications, and social determinants of health in understanding urban‐rural outcome differences among patients with heart failure The Journal of Rural Health ·Emily P. Zeitler, Linda Kašparová, Christopher Leggett, Sandra L. Wong, A. James O’Malley, Sally A Kraft, 宗言, Stein-Novais Camila, Jonathan Skinner	2023	3
12	Characterizing the Prevalence of Obesity Misinformation, Factual Content, Stigma, and Positivity on the Social Media Platform Reddit Between 2011 and 2019: Infodemiology Study Journal of Medical Internet Research ·Teresita de Jesús Valdez-Chávez, Jennifer A. Emond, A. James O’Malley, Paul Gabrielli, C. Dachss, Souad Fkih Tetouani, Soroush Vosoughi, Diane Gilbert‐Diamond, Tracy Onega	2022	5
13	Comparing the impact of an icon array versus a bar graph on preference and understanding of risk information: Results from an online, randomized study PLoS ONE ·Peter Scalia, Danielle Schubbe, B. Garcia, Marie‐Anne Durand, Jorge Frascara, Gary Clare, A. James O’Malley, Glyn Elwyn	2021	7
14	A Systematic Review and Meta-Analysis of Patient Decision Aids for Socially Disadvantaged Populations: Update from the International Patient Decision Aid Standards (IPDAS) Medical Decision Making ·Renata W. Yen, Jenna Smith, Jaclyn Engel, Danielle Marie Muscat, Sian K. Smith, Julien Mancini, Lilisbeth Perestelo‐Pérez, Glyn Elwyn, A. James O’Malley, JoAnna K. Leyenaar, Olivia Mac, Tamara Cadet, Anik Giguère, Ashley J. Housten, Aisha T. Langford, Kirsten McCaffery, Marie‐Anne Durand	2021	38
15	IFAA: Robust Association Identification and Inference for Absolute Abundance in Microbiome Analyses Journal of the American Statistical Association ·Zhigang Li, Lü Tian, A. James O’Malley, Margaret R. Karagas, Anne G. Hoen, Brock C. Christensen, Juliette C. Madan, S. D. Pandey, Raad Z. Gharaibeh, Christian Jobin, Hongzhe Li	2020	3
16	Long-term Reintervention After Endovascular Abdominal Aortic Aneurysm Repair Annals of Surgery ·Jesse A. Columbo, Pablo Martínez‐Camblor, A. James O’Malley, Bjoern D. Suckow, Andrew W. Hoel, David H. Stone, Andres Schanzer, Marc L. Schermerhorn, Art Sedrakyan, Philip P. Goodney	2019	40
17	Medical Students’ Knowledge and Attitudes Toward Shared Decision Making: Results From a Multinational, Cross-Sectional Survey MDM Policy & Practice ·Renata W. Yen, Paul Barr, Nan Cochran, Johanna W. M. Aarts, France Légaré, Malcolm Reed, A. James O’Malley, Peter Scalia, Geneviève Painchaud Guérard, Sinanian, I. P. Desai, Glyn Elwyn, Marie‐Anne Durand	2019	14
18	Presenting time-based risks of stroke and death for Patients facing carotid stenosis treatment options: Patients prefer pie charts over icon arrays Patient Education and Counseling ·Peter Scalia, A. James O’Malley, Marie‐Anne Durand, Philip P. Goodney, Glyn Elwyn	2019	6
19	Workshop on Emerging Technology and Data Analytics for Behavioral Health JMIR Research Protocols ·David Kotz, Sarah Lord, A. James O’Malley, Luke Stark, Lisa A. Marsch	2018	11
20	Diabetes and Cardiovascular Disease During Androgen Deprivation Therapy for Prostate Cancer Journal of Clinical Oncology ·Nancy L. Keating, A. James O’Malley, Matthew R. Smith Hit paper breakdown →	2006	1060

About A. James O’Malley

A. James O’Malley is a scholar working on Statistics and Probability, General Health Professions, Organizational Behavior and Human Resource Management, Economics and Econometrics and Geriatrics and Gerontology, having authored 314 papers that have together received 13.0k indexed citations. Recurring topics across this work include Healthcare Policy and Management (61 papers), Healthcare Systems and Technology (42 papers), Health Systems, Economic Evaluations, Quality of Life (41 papers), Patient Satisfaction in Healthcare (37 papers), Primary Care and Health Outcomes (35 papers), Patient-Provider Communication in Healthcare (32 papers), Aortic aneurysm repair treatments (26 papers) and Cardiac, Anesthesia and Surgical Outcomes (25 papers). The work is most often cited by research in General Health Professions (3.2k citations), Cardiology and Cardiovascular Medicine (2.5k citations), Pulmonary and Respiratory Medicine (3.5k citations), Organizational Behavior and Human Resource Management (1.0k citations) and Geriatrics and Gerontology (353 citations). A. James O’Malley has collaborated with scholars based in United States, United Kingdom and Israel. Frequent co-authors include Nancy L. Keating, Bruce E. Landon, Laura Mauri, Kelly H. Zou, Matthew R. Smith, Nicholas A. Christakis, Philip Cotterill, David C. Grabowski, Marc L. Schermerhorn and Frank B. Pomposelli. Their work appears in journals such as Journal of Vascular Surgery, Health Services Research, JAMA Network Open, Statistics in Medicine and Medical Care.

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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