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Thomas Frisell

Karolinska Institutet · SE
Area of research
Rheumatology · Pathology and Forensic Medicine
Research interest
Research interests include Rheumatoid Arthritis Research and Therapies, Spondyloarthritis Studies and Treatments, Multiple Sclerosis Research Studies, and Genetic Associations and Epidemiology.
h-index
46
citations
7,144
works
225
NIH funding
primary concept
email

Recent publications

Diagnostic accuracy in the Swedish national patient register: a review including diagnoses in the outpatient register
European Journal of Epidemiology 2025cited by 71position: middledoi
Completeness and generalizability of the Swedish MS register
European Journal of Epidemiology 2025cited by 5position: middledoi
<scp>COMBAT</scp>‐<scp>MS</scp>: A Population‐Based Observational Cohort Study Addressing the Benefit–Risk Balance of Multiple Sclerosis Therapies Compared with Rituximab
Annals of Neurology 2024cited by 19position: lastdoi
Impact of previous treatment history and B-cell depletion treatment duration on infection risk in relapsing-remitting multiple sclerosis: a nationwide cohort study
Journal of Neurology Neurosurgery & Psychiatry 2024cited by 11position: lastdoi
Hypogammaglobulinaemia during rituximab treatment in multiple sclerosis: A Swedish cohort study
European Journal of Neurology 2024cited by 10position: middledoi
The Swedish medical birth register during five decades: documentation of the content and quality of the register
European Journal of Epidemiology 2023cited by 242position: middledoi
Safety of biological and targeted synthetic disease-modifying antirheumatic drugs for rheumatoid arthritis as used in clinical practice: results from the ARTIS programme
Annals of the Rheumatic Diseases 2023cited by 87position: firstdoi
Cancer risks with JAKi and biological disease-modifying antirheumatic drugs in patients with rheumatoid arthritis or psoriatic arthritis: a national real-world cohort study
Annals of the Rheumatic Diseases 2023cited by 70position: middledoi
Comparative cardiovascular safety with janus kinase inhibitors and biological disease-modifying antirheumatic drugs as used in clinical practice: an observational cohort study from Sweden in patients with rheumatoid arthritis
RMD Open 2023cited by 19position: middledoi
Glucocorticoid exposure and the risk of serious infections in rheumatoid arthritis: a marginal structural model application
Lara D. Veeken 2023cited by 17position: lastdoi
Multiple sclerosis, disease-modifying drugs and risk for adverse perinatal and pregnancy outcomes: Results from a population-based cohort study
Multiple Sclerosis Journal 2023cited by 13position: middledoi
Efficacy and Safety of Rituximab for New-Onset Generalized Myasthenia Gravis
JAMA Neurology 2022cited by 186position: lastdoi
Safety and efficacy of rituximab versus dimethyl fumarate in patients with relapsing-remitting multiple sclerosis or clinically isolated syndrome in Sweden: a rater-blinded, phase 3, randomised controlled trial
The Lancet Neurology 2022cited by 122position: middledoi
Venous thromboembolism with JAK inhibitors and other immune-modulatory drugs: a Swedish comparative safety study among patients with rheumatoid arthritis
Annals of the Rheumatic Diseases 2022cited by 88position: middledoi
Sustained Low Relapse Rate With Highly Variable B-Cell Repopulation Dynamics With Extended Rituximab Dosing Intervals in Multiple Sclerosis
Neurology Neuroimmunology & Neuroinflammation 2022cited by 71position: middledoi
Effectiveness of baricitinib and tofacitinib compared with bDMARDs in RA: results from a cohort study using nationwide Swedish register data
Lara D. Veeken 2022cited by 39position: lastdoi
Generalizability and effect measure modification in sibling comparison studies
European Journal of Epidemiology 2022cited by 37position: lastdoi
Impact of the COVID-19 pandemic on morbidity and mortality in patients with inflammatory joint diseases and in the general population: a nationwide Swedish cohort study
Annals of the Rheumatic Diseases 2021cited by 101position: middledoi
Sibling Comparison Studies
Annual Review of Statistics and Its Application 2021cited by 84position: middledoi
Short- and longer-term cancer risks with biologic and targeted synthetic disease-modifying antirheumatic drugs as used against rheumatoid arthritis in clinical practice
Lara D. Veeken 2021cited by 81position: middledoi
Cancer Risk for Fingolimod, Natalizumab, and Rituximab in Multiple Sclerosis Patients
Annals of Neurology 2020cited by 134position: lastdoi
Risk of venous thromboembolism in rheumatoid arthritis, and its association with disease activity: a nationwide cohort study from Sweden
Annals of the Rheumatic Diseases 2020cited by 119position: middledoi
Comparison Between Rituximab Treatment for New-Onset Generalized Myasthenia Gravis and Refractory Generalized Myasthenia Gravis
JAMA Neurology 2020cited by 114position: middledoi
Infection Risks Among Patients With Multiple Sclerosis Treated With Fingolimod, Natalizumab, Rituximab, and Injectable Therapies
JAMA Neurology 2019cited by 503position: lastdoi
Natalizumab, rituximab and fingolimod as escalation therapy in multiple sclerosis
European Journal of Neurology 2019cited by 38position: middledoi
Comparative Effectiveness of Rituximab and Other Initial Treatment Choices for Multiple Sclerosis
JAMA Neurology 2018cited by 207position: middledoi
Validation of the Swedish Multiple Sclerosis Register
Epidemiology 2018cited by 63position: lastdoi
Malignant Neoplasms in Patients With Rheumatoid Arthritis Treated With Tumor Necrosis Factor Inhibitors, Tocilizumab, Abatacept, or Rituximab in Clinical Practice
JAMA Internal Medicine 2017cited by 169position: middledoi
Apgar Score Components at 5 Minutes: Risks and Prediction of Neonatal Mortality
Paediatric and Perinatal Epidemiology 2017cited by 107position: lastdoi
Comparative effectiveness of rituximab relative to IFN-β or glatiramer acetate in relapsing-remitting MS from the Swedish MS registry
Multiple Sclerosis Journal 2017cited by 57position: middledoi

Grants

No grants ingested yet.

Frequent collaborators

Johan Askling · Karolinska University Hospital21 papers (2013–2023)Fredrik Piehl · Karolinska University Hospital14 papers (2016–2024) · 8 papers (2016–2024)Anders Svenningsson · Karolinska University Hospital8 papers (2016–2024)Katharina Fink · Karolinska University Hospital8 papers (2016–2025)Peter Alping · Karolinska Institutet7 papers (2016–2025)Hannah Bower · Karolinska Institutet7 papers (2020–2023)Jan Lycke · Sahlgrenska University Hospital6 papers (2016–2024)Jan Hillert · Karolinska University Hospital5 papers (2017–2025)Annette Langer‐Gould · Los Angeles Medical Center5 papers (2018–2024)Marie Holmqvist · Karolinska University Hospital5 papers (2013–2017)Bénédicte Delcoigne · Karolinska Institutet5 papers (2021–2023)Helena Forsblad‐d’Elia · Lund University4 papers (2021–2023)Joachim Burman · Aarhus University4 papers (2019–2024)Martin Gunnarsson · Örebro University4 papers (2019–2024)Arvid Sjölander · Karolinska Institutet4 papers (2012–2023)Fredrik Nyberg · National Academy of Medicine4 papers (2015–2017)Daniela Di Giuseppe · Karolinska Institutet4 papers (2021–2023) · 4 papers (2021–2023)Kaleb Michaud · University of Kansas3 papers (2015–2017)