Ryan N. Hansen

2.6k total citations · 1 hit paper
102 papers, 1.9k citations indexed

About

Ryan N. Hansen is a scholar working on Economics and Econometrics, Public Health, Environmental and Occupational Health and Surgery. According to data from OpenAlex, Ryan N. Hansen has authored 102 papers receiving a total of 1.9k indexed citations (citations by other indexed papers that have themselves been cited), including 24 papers in Economics and Econometrics, 22 papers in Public Health, Environmental and Occupational Health and 21 papers in Surgery. Recurrent topics in Ryan N. Hansen's work include Health Systems, Economic Evaluations, Quality of Life (16 papers), Opioid Use Disorder Treatment (15 papers) and Anesthesia and Pain Management (10 papers). Ryan N. Hansen is often cited by papers focused on Health Systems, Economic Evaluations, Quality of Life (16 papers), Opioid Use Disorder Treatment (15 papers) and Anesthesia and Pain Management (10 papers). Ryan N. Hansen collaborates with scholars based in United States, United Kingdom and Netherlands. Ryan N. Hansen's co-authors include Emily Beth Devine, Patrick Gillard, Zsolt Hepp, Sepideh F. Varon, David W. Dodick, Sean D. Sullivan, Jenny Chia, George J. Wan, Jonathan D. Campbell and Laura S. Gold and has published in prestigious journals such as Journal of Clinical Oncology, SHILAP Revista de lepidopterología and Gastroenterology.

In The Last Decade

Ryan N. Hansen

98 papers receiving 1.8k citations

Hit Papers

align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

Adherence to oral migraine-preventive medications among patients with chronic migraine

2014 323 citations Zsolt Hepp, Patrick Gillard et al. profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Ryan N. Hansen United States	21	695	492	333	240	231	102	1.9k
George J. Wan United States	25	721 1.0×	94 0.2×	471 1.4×	325 1.4×	214 0.9×	91	2.4k
Kenneth Brummel‐Smith United States	21	273 0.4×	137 0.3×	279 0.8×	453 1.9×	247 1.1×	52	2.4k
Maria M. Wertli Switzerland	25	438 0.6×	648 1.3×	669 2.0×	207 0.9×	237 1.0×	101	2.5k
M Abdalla United Kingdom	11	184 0.3×	189 0.4×	661 2.0×	165 0.7×	299 1.3×	14	2.6k
Petra Jellema Netherlands	23	258 0.4×	411 0.8×	393 1.2×	137 0.6×	91 0.4×	36	1.9k
Marcia F.T. Rupnow United States	28	1.6k 2.3×	730 1.5×	498 1.5×	77 0.3×	410 1.8×	63	2.6k
S. Bolge United States	22	217 0.3×	91 0.2×	525 1.6×	137 0.6×	437 1.9×	68	2.3k
Bethan Copsey United Kingdom	18	425 0.6×	101 0.2×	171 0.5×	245 1.0×	142 0.6×	40	1.6k
Janet K. Freburger United States	21	418 0.6×	642 1.3×	358 1.1×	280 1.2×	156 0.7×	45	2.4k
Bernd Schweikert Germany	16	176 0.3×	329 0.7×	127 0.4×	125 0.5×	140 0.6×	37	1.4k

Countries citing papers authored by Ryan N. Hansen

Since Specialization

Citations

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

Fields of papers citing papers by Ryan N. Hansen

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Ryan N. Hansen. 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 Ryan N. Hansen. The network helps show where Ryan N. Hansen may publish in the future.

Co-authorship network of co-authors of Ryan N. Hansen

This figure shows the co-authorship network connecting the top 25 collaborators of Ryan N. Hansen. A scholar is included among the top collaborators of Ryan N. Hansen 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 Ryan N. Hansen. Ryan N. Hansen 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

Velligan, Dawn I., et al.. (2025). Preferences for Selecting and Initiating Long-Acting Injectable Antipsychotic Agents for the Treatment of Patients With Schizophrenia: Results From the US DECIDE Survey. Schizophrenia Bulletin Open. 6(1). sgaf001–sgaf001. 2 indexed citations

Gold, Laura S., Patrick J. Heagerty, Ryan N. Hansen, et al.. (2025). Adverse respiratory events during treatment with gabapentin and opioids among older adults with spine-related conditions: a propensity-matched cohort study in the US Medicare population. The Spine Journal. 25(9). 2096–2107. 1 indexed citations

Green, Traci C., Anthony S. Floyd, Adriane N. Irwin, et al.. (2023). Pharmacy staff-reported adaptations to naloxone provision and over-the-counter (OTC) syringe sales during the COVID-19 pandemic: Experiences across multiple states and 2 pharmacy chains. Journal of the American Pharmacists Association. 64(1). 71–78. 2 indexed citations

Gold, Laura S., et al.. (2023). Antidepressants and the Risk of Fall-Related Injury in Older Adults with Incident Depression in the United States: A Comparative Safety Analysis. SHILAP Revista de lepidopterología. 2(3). 209–222. 1 indexed citations

Gold, Laura S., Ryan N. Hansen, Sonya L. Heltshe, et al.. (2023). Characteristics associated with cystic fibrosis-related pulmonary exacerbation treatment location. Journal of Cystic Fibrosis. 23(2). 278–281. 2 indexed citations

Seslar, Stephen P., et al.. (2022). Health care resource utilization and costs associated with atrial fibrillation and rural-urban disparities. Journal of Managed Care & Specialty Pharmacy. 28(11). 1321–1330. 14 indexed citations

Irwin, Adriane N., Jeffrey Bratberg, Anthony S. Floyd, et al.. (2022). Implementation of an academic detailing intervention to increase naloxone distribution and foster engagement in harm reduction from the community clinician. Journal of the American Pharmacists Association. 63(1). 284–294.e1. 10 indexed citations

Floyd, Anthony S., Adriane N. Irwin, Jeffrey Bratberg, et al.. (2022). Readiness of community pharmacies to implement an opioid safety intervention. Journal of the American Pharmacists Association. 63(1). 275–283.e1. 8 indexed citations

Hansen, Ryan N., et al.. (2021). Opportunities and Barriers to Rural Telerobotic Surgical Health Care in 2021: Report and Research Agenda from a Stakeholder Workshop. Telemedicine Journal and e-Health. 28(7). 1050–1057. 8 indexed citations

10.

Hansen, Ryan N., et al.. (2021). Health care costs related to home spirometry in the eICE randomized trial. Journal of Cystic Fibrosis. 21(1). 61–69. 4 indexed citations

11.

Wright, Jonathan L., et al.. (2020). Application of Health Technology Assessment (HTA) to Evaluate New Laboratory Tests in a Health System: A Case Study of Bladder Cancer Testing. Academic Pathology. 7. 1534968353–1534968353. 2 indexed citations

12.

Barrington, John W., Ryan N. Hansen, Belinda Lovelace, et al.. (2018). Impact of Intravenous Acetaminophen on Lengths of Stay and Discharge Status after Total Knee Arthroplasty. The Journal of Knee Surgery. 32(1). 111–116. 10 indexed citations

13.

Keyloun, Katelyn R., Ryan N. Hansen, Zsolt Hepp, et al.. (2017). Adherence and Persistence Across Antidepressant Therapeutic Classes: A Retrospective Claims Analysis Among Insured US Patients with Major Depressive Disorder (MDD). CNS Drugs. 31(5). 421–432. 65 indexed citations

14.

Hansen, Ryan N., An T. Pham, E. Boing, et al.. (2017). Comparative analysis of length of stay, hospitalization costs, opioid use, and discharge status among spine surgery patients with postoperative pain management including intravenous versus oral acetaminophen. Current Medical Research and Opinion. 33(5). 943–948. 50 indexed citations

15.

Hansen, Ryan N., An T. Pham, E. Boing, et al.. (2017). Hospitalization costs and resource allocation in cholecystectomy with use of intravenous versus oral acetaminophen. Current Medical Research and Opinion. 34(9). 1549–1555. 9 indexed citations

16.

Hansen, Ryan N., et al.. (2016). Comparative Analysis of Length of Stay and Inpatient Costs for Orthopedic Surgery Patients Treated with IV Acetaminophen and IV Opioids vs. IV Opioids Alone for Post-Operative Pain. Advances in Therapy. 33(9). 1635–1645. 38 indexed citations

17.

Hansen, Ryan N., et al.. (2015). Mortality And Readmission In Mechanically Ventilated Patients With Pneumonia. Value in Health. 18(3). A169–A170. 2 indexed citations

18.

Hackshaw, Michelle D., Ryan N. Hansen, Saurabh Nagar, et al.. (2014). Costs Associated with Health Care Resource Use in Patients with Advanced Renal Cell Carcinoma Receiving First-Line Treatment with Pazopanib Versus Sunitinib. Value in Health. 17(3). A77–A78. 1 indexed citations

19.

Hansen, Ryan N., et al.. (2013). Estimating the Budget Implications of Radium Ra 223 Dichloride in Castration-Resistant Prostate Cancer Patients with Non-Visceral Bone Metastases Treated in Infusion Centers in the United States. Value in Health. 16(7). A400–A400. 1 indexed citations

20.

Carlson, Josh J., Ryan N. Hansen, Roger R. Dmochowski, et al.. (2013). Estimating the Cost-Effectiveness of OnabotulinumtoxinA for Neurogenic Detrusor Overactivity in the United States. Clinical Therapeutics. 35(4). 414–424. 19 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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