Roar Johnsen

7.3k total citations
157 papers, 5.6k citations indexed

About

Roar Johnsen is a scholar working on General Health Professions, Physiology and Surgery. According to data from OpenAlex, Roar Johnsen has authored 157 papers receiving a total of 5.6k indexed citations (citations by other indexed papers that have themselves been cited), including 59 papers in General Health Professions, 27 papers in Physiology and 26 papers in Surgery. Recurrent topics in Roar Johnsen's work include Workplace Health and Well-being (34 papers), Musculoskeletal pain and rehabilitation (26 papers) and Asthma and respiratory diseases (23 papers). Roar Johnsen is often cited by papers focused on Workplace Health and Well-being (34 papers), Musculoskeletal pain and rehabilitation (26 papers) and Asthma and respiratory diseases (23 papers). Roar Johnsen collaborates with scholars based in Norway, Sweden and United States. Roar Johnsen's co-authors include Ola Storrø, Torbjørn Øien, Kristian Hveem, Jesper Lagergren, Bjørn Straume, Christian Kvikne Dotterud, Olav Helge Førde, Steinar Westin, Magnus Nilsson and Bjørn Bernersen and has published in prestigious journals such as The Lancet, JAMA and PLoS ONE.

In The Last Decade

Roar Johnsen

154 papers receiving 5.4k citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Roar Johnsen Norway 42 1.6k 1.2k 1.1k 900 762 157 5.6k
Olivier Chassany France 30 753 0.5× 924 0.7× 367 0.3× 503 0.6× 313 0.4× 143 3.9k
Jane M. Andrews Australia 45 1.6k 1.0× 1.7k 1.4× 567 0.5× 975 1.1× 1.1k 1.5× 233 6.9k
Lauri J. Virta Finland 32 804 0.5× 553 0.4× 301 0.3× 406 0.5× 820 1.1× 109 3.4k
A. P. S. Hungin United Kingdom 39 3.3k 2.1× 3.6k 2.9× 319 0.3× 612 0.7× 357 0.5× 108 6.2k
Marjolein Y. Berger Netherlands 37 1.9k 1.2× 1.1k 0.9× 334 0.3× 551 0.6× 118 0.2× 210 5.7k
Deanna Kruszon‐Moran United States 33 1.3k 0.9× 232 0.2× 1.2k 1.0× 1.7k 1.9× 587 0.8× 46 9.9k
Leroy R. Thacker United States 48 2.3k 1.5× 299 0.2× 647 0.6× 774 0.9× 1.6k 2.1× 233 8.9k
Melvin B. Heyman United States 44 1.9k 1.2× 431 0.3× 443 0.4× 540 0.6× 424 0.6× 201 6.2k
Lawrence W. Svenson Canada 47 923 0.6× 293 0.2× 859 0.7× 376 0.4× 290 0.4× 210 7.9k
Anita L. Kozyrskyj Canada 50 592 0.4× 468 0.4× 940 0.8× 2.6k 2.9× 3.4k 4.4× 213 10.0k

Countries citing papers authored by Roar Johnsen

Since Specialization
Citations

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

Fields of papers citing papers by Roar Johnsen

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Roar Johnsen

This figure shows the co-authorship network connecting the top 25 collaborators of Roar Johnsen. A scholar is included among the top collaborators of Roar Johnsen 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 Roar Johnsen. Roar Johnsen is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
Gismervik, Sigmund, Lene Aasdahl, Ottar Vasseljen, et al.. (2020). Inpatient multimodal occupational rehabilitation reduces sickness absence among individuals with musculoskeletal and common mental health disorders: a randomized clinical trial. Scandinavian Journal of Work Environment & Health. 46(4). 364–372. 23 indexed citations
2.
Avershina, Ekaterina, Marina Aspholm, Toril Lindbäck, et al.. (2020). Culture dependent and independent analyses suggest a low level of sharing of endospore-forming species between mothers and their children. Scientific Reports. 10(1). 1832–1832. 13 indexed citations
3.
Fimland, Marius Steiro, et al.. (2019). Effectiveness of adding a workplace intervention to an inpatient multimodal occupational rehabilitation program: A randomized clinical trial. Scandinavian Journal of Work Environment & Health. 46(4). 356–363. 13 indexed citations
4.
5.
Simpson, Melanie Rae, Torstein B. Rø, Ola Storrø, et al.. (2017). Reduced Th22 cell proportion and prevention of atopic dermatitis in infants following maternal probiotic supplementation. Clinical & Experimental Allergy. 47(8). 1014–1021. 48 indexed citations
6.
Vie, Gunnhild Åberge, Kristine Pape, Steinar Krokstad, Roar Johnsen, & Johan Hå‌kon Bjø‌rngaard. (2017). Temporal changes in health within 5 years before and after disability pension–the HUNT Study. European Journal of Public Health. 27(4). 653–659. 3 indexed citations
7.
8.
Vie, Gunnhild Åberge, Pål Romundstad, Steinar Krokstad, Roar Johnsen, & Johan Hå‌kon Bjø‌rngaard. (2015). Mortality and work disability in a cohort of Norwegian couples—the HUNT study. European Journal of Public Health. 25(5). 807–814. 3 indexed citations
9.
Leivseth, Linda, Ben Brumpton, Tom Ivar Lund Nilsen, et al.. (2013). GOLD classifications and mortality in COPD: The HUNT study. European Respiratory Journal. 42(Suppl 57). 4868–4868. 1 indexed citations
10.
Pape, Kristine, Koenraad Cuypers, Roar Johnsen, et al.. (2013). High school dropout and long-term sickness and disability in young adulthood: a prospective propensity score stratified cohort study (the Young-HUNT study). BMC Public Health. 13(1). 941–941. 55 indexed citations
11.
Bjø‌rngaard, Johan Hå‌kon, Steinar Krokstad, Roar Johnsen, et al.. (2009). Epidemiological research on disability benefits in the Nordic countries.. Norsk Epidemiologi. 19(2). 103–114. 10 indexed citations
12.
Saunes, Marit, Ola Storrø, Torbjørn Øien, et al.. (2009). Allergy related disorders among 2-yrs olds in a general population. The PACT Study. Pediatric Allergy and Immunology. 21(2p1). 315–320. 5 indexed citations
13.
Garåsen, Helge, et al.. (2008). Eldre pasienter i sykehus eller i intermediæravdeling i sykehjem – en kostnadsanalyse. Tidsskrift for Den Norske Laegeforening. 128. 4 indexed citations
14.
Pettersen, Betty & Roar Johnsen. (2007). Legers oppfatning av samhandlingen mellom nivåene i helsetjenesten. Tidsskrift for Den Norske Laegeforening. 2 indexed citations
15.
Garåsen, Helge & Roar Johnsen. (2005). Samarbeid mellom kommune og spesialisthelsetjeneste – erfaringer fra Trondheim. Tidsskrift for Den Norske Laegeforening.
16.
Johnsen, Roar, et al.. (2000). Early Aggressive Exercise for Postoperative Rehabilitation After Discectomy. Spine. 25(8). 1015–1020. 83 indexed citations
17.
Johnsen, Roar, et al.. (1997). [Working hours and productivity of curative services in general practice in 1993. Practice profile of Norwegian primary physicians].. PubMed. 117(10). 1489–92. 9 indexed citations
18.
Bernersen, Bjørn, Roar Johnsen, & Bjørn Straume. (1996). Non-ulcer dyspepsia and peptic ulcer: the distribution in a population and their relation to risk factors.. Gut. 38(6). 822–825. 84 indexed citations
19.
Bernersen, Bjørn, et al.. (1990). Towards a true prevalence of peptic ulcer: the Sørreisa gastrointestinal disorder study.. Gut. 31(9). 989–992. 114 indexed citations
20.
Johnsen, Roar, Bjørn Straume, & Olav Helge Førde. (1988). Peptic Ulcer and Non-ulcer Dyspepsia—a Disease and a Disorder. Scandinavian Journal of Primary Health Care. 6(4). 239–243. 52 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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