Jonas Halfvarson

26.0k total citations · 3 hit papers
194 papers, 8.9k citations indexed

About

Jonas Halfvarson is a scholar working on Genetics, Epidemiology and Surgery. According to data from OpenAlex, Jonas Halfvarson has authored 194 papers receiving a total of 8.9k indexed citations (citations by other indexed papers that have themselves been cited), including 159 papers in Genetics, 113 papers in Epidemiology and 72 papers in Surgery. Recurrent topics in Jonas Halfvarson's work include Inflammatory Bowel Disease (157 papers), Microscopic Colitis (107 papers) and Eosinophilic Esophagitis (40 papers). Jonas Halfvarson is often cited by papers focused on Inflammatory Bowel Disease (157 papers), Microscopic Colitis (107 papers) and Eosinophilic Esophagitis (40 papers). Jonas Halfvarson collaborates with scholars based in Sweden, United States and United Kingdom. Jonas Halfvarson's co-authors include Curt Tysk, Janet Jansson, Gunnar Järnerot, Jonas F. Ludvigsson, Johan Dicksved, Ola Olén, Lars Engstrand, Benjamin P. Willing, Marianna Lucio and Mauro D’Amato and has published in prestigious journals such as Proceedings of the National Academy of Sciences, The Lancet and Journal of Clinical Investigation.

In The Last Decade

Jonas Halfvarson

179 papers receiving 8.8k 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.

Dynamics of the human gut microbiome in inflammatory bowel disease

2017 839 citations Jonas Halfvarson, Mauro D’Amato et al. profile →
A Pyrosequencing Study in Twins Shows That Gastrointestinal Microbial Profiles Vary With Inflammatory Bowel Disease Phenotypes

2010 821 citations Jonas Halfvarson, Gunnar Järnerot et al. Gastroenterology profile →
Colorectal cancer in ulcerative colitis: a Scandinavian population-based cohort study

2020 321 citations Ola Olén, Rune Erichsen et al. profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Jonas Halfvarson Sweden	42	4.3k	4.1k	2.9k	1.9k	1.2k	194	8.9k
Joshua R. Korzenik United States	47	5.6k 1.3×	3.3k 0.8×	4.3k 1.5×	2.7k 1.4×	1.4k 1.2×	176	11.4k
Levinus A. Dieleman Canada	50	3.7k 0.9×	3.8k 0.9×	2.1k 0.7×	2.0k 1.1×	1.1k 0.9×	180	9.4k
Rinse K. Weersma Netherlands	47	2.6k 0.6×	5.0k 1.2×	2.1k 0.7×	2.4k 1.3×	1.4k 1.1×	204	10.4k
Franco Scaldaferri Italy	48	2.3k 0.5×	3.7k 0.9×	1.5k 0.5×	1.5k 0.8×	1.1k 0.9×	247	8.9k
Ailsa Hart United Kingdom	56	5.6k 1.3×	4.0k 1.0×	3.9k 1.3×	3.5k 1.8×	1.6k 1.3×	327	12.6k
Paolo Lionetti Italy	34	2.4k 0.6×	4.2k 1.0×	1.8k 0.6×	1.7k 0.9×	1.2k 1.0×	139	8.8k
Hamed Khalili United States	47	4.2k 1.0×	1.8k 0.4×	4.0k 1.4×	2.1k 1.1×	741 0.6×	220	8.2k
Rupert W. Leong Australia	51	3.6k 0.9×	2.2k 0.5×	3.0k 1.0×	3.0k 1.6×	1.5k 1.2×	336	9.6k
Stephan R. Vavricka Switzerland	50	5.4k 1.3×	2.2k 0.5×	4.3k 1.5×	3.0k 1.6×	633 0.5×	240	11.0k
Neal S. LeLeiko United States	40	2.8k 0.7×	2.3k 0.6×	2.0k 0.7×	1.6k 0.9×	886 0.7×	163	6.7k

Countries citing papers authored by Jonas Halfvarson

Since Specialization

Citations

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

Fields of papers citing papers by Jonas Halfvarson

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Jonas Halfvarson. 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 Jonas Halfvarson. The network helps show where Jonas Halfvarson may publish in the future.

Co-authorship network of co-authors of Jonas Halfvarson

This figure shows the co-authorship network connecting the top 25 collaborators of Jonas Halfvarson. A scholar is included among the top collaborators of Jonas Halfvarson 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 Jonas Halfvarson. Jonas Halfvarson 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

Everhov, Åsa H., Michael Eberhardson, Caroline Nordenvall, et al.. (2025). Cumulative incidence and prevalence of perianal diseases in patients with inflammatory bowel disease and in the population: a nationwide Swedish study. Scandinavian Journal of Gastroenterology. 60(4). 349–354.

Sun, Jiangwei, Karl Mårild, David Bergman, et al.. (2025). Histologic Remission and Mortality in Patients With Inflammatory Bowel Disease: A Nationwide Cohort Study. Clinical Gastroenterology and Hepatology.

Fiorino, Gionata, Ashwin N. Ananthakrishnan, Raymond K. Cross, et al.. (2025). Accelerating Earlier Access to Anti-TNF-α Agents with Biosimilar Medicines in the Management of Inflammatory Bowel Disease. Journal of Clinical Medicine. 14(5). 1561–1561. 1 indexed citations

Louis, Édouard, Antonino Spinelli, Simon Travis, et al.. (2023). The Real-World Global Use of Patient-Reported Outcomes for the Care of Patients With Inflammatory Bowel Disease. Crohn s & Colitis 360. 5(2). otad006–otad006. 6 indexed citations

Garber, John J., Kathryn A. Peterson, Björn Roelstraete, et al.. (2023). Eosinophilic esophagitis is associated with increased risk of later inflammatory bowel disease in a nationwide Swedish population cohort. United European Gastroenterology Journal. 12(1). 34–43. 5 indexed citations

Ludvigsson, Jonas F., Jiangwei Sun, Ola Olén, et al.. (2022). Normal Gastrointestinal Mucosa at Biopsy and Overall Mortality: Nationwide Population-Based Cohort Study. Clinical Epidemiology. Volume 14. 889–900. 1 indexed citations

Salihović, Samira, Aidan McGlinchey, Mélanie G. Gareau, et al.. (2021). Perfluoroalkyl substances are increased in patients with late-onset ulcerative colitis and induce intestinal barrier defects ex vivo in murine intestinal tissue. Scandinavian Journal of Gastroenterology. 56(11). 1286–1295. 22 indexed citations

Eriksson, Carl, Lina Vigren, Anders Kärnell, et al.. (2021). Clinical effectiveness of golimumab in ulcerative colitis: a prospective multicentre study based on the Swedish IBD Quality Register, SWIBREG. Scandinavian Journal of Gastroenterology. 56(11). 1304–1311. 6 indexed citations

Juzėnas, Simonas, C. Lindqvist, Go Ito, et al.. (2020). Depletion of erythropoietic miR-486-5p and miR-451a improves detectability of rare microRNAs in peripheral blood-derived small RNA sequencing libraries. NAR Genomics and Bioinformatics. 2(1). lqaa008–lqaa008. 6 indexed citations

10.

Axelrad, Jordan E., Ola Olén, Michael C. Sachs, et al.. (2020). Inflammatory bowel disease and risk of small bowel cancer: a binational population-based cohort study from Denmark and Sweden. Gut. 70(2). 297–308. 36 indexed citations

11.

Olbjørn, Christine, Milada Cvancarova Småstuen, Espen Thiis‐Evensen, et al.. (2019). <p>Fecal microbiota profiles in treatment-naïve pediatric inflammatory bowel disease – associations with disease phenotype, treatment, and outcome</p>. Clinical and Experimental Gastroenterology. Volume 12. 37–49. 65 indexed citations

12.

Svensson, Magnus, David Bergman, Ola Olén, et al.. (2018). Validating microscopic colitis (MC) in Swedish pathology registers. Scandinavian Journal of Gastroenterology. 53(12). 1469–1475. 33 indexed citations

13.

Eriksson, Carl, et al.. (2017). Changes in medical management and colectomy rates: a population‐based cohort study on the epidemiology and natural history of ulcerative colitis in Örebro, Sweden, 1963‐2010. Alimentary Pharmacology & Therapeutics. 46(8). 748–757. 47 indexed citations

14.

Kalla, Rahul, Nicholas A. Kennedy, Fredrik Hjelm, et al.. (2015). P140. Proximity Extension Assay technology identifies novel serum biomarkers for predicting Inflammatory Bowel Disease: IBD Character Consortium. Journal of Crohn s and Colitis. 9(suppl 1). S146–S147. 1 indexed citations

15.

Nguyen, Hang Thi Thu, Guillaume Dalmasso, Leif Törkvist, et al.. (2011). CD98 expression modulates intestinal homeostasis, inflammation, and colitis-associated cancer in mice. Journal of Clinical Investigation. 121(5). 1733–1747. 102 indexed citations

16.

Järnerot, G, Erik Hertervig, Ingalill Friis–Liby, et al.. (2010). Clinical trial: colectomy after rescue therapy in ulcerative colitis – 3‐year follow‐up of the Swedish‐Danish controlled infliximab study. Alimentary Pharmacology & Therapeutics. 32(8). 984–989. 133 indexed citations

17.

Almér, Sven, Ragnar Befrits, Anders Eriksson, et al.. (2009). Modern läkemedelsterapi vid Crohn - nationella riktlinjer.. Läkartidningen. 106(45). 2988–2993. 1 indexed citations

18.

Gustavsson, Anders, Gunnar Järnerot, Erik Hertervig, et al.. (2008). Colectomy after rescue therapy for intravenous-steroid resistant acute ulcerative colitis : a 3-year follow-up study of the Swedish-Danish infliximab/placebo trial. Gut. 4 indexed citations

19.

Halfvarson, Jonas, Francesca Bresso, Curt Tysk, Sven Pettersson, & G Järnerot. (2004). Genetic Crohn's disease : A different entity than sporadic. A study in monozygotic twins. Gastroenterology. 126(4). 4 indexed citations

20.

Halfvarson, Jonas, Curt Tysk, & Gunnar Järnerot. (2004). Decreasing pair concordance in monozygotic twins with Crohn's disease. Gastroenterology. 126(4). 7 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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