Bilde av Brodersen, John
Bilde av Brodersen, John
Allmennmedisinsk forskningsenhet AFE

John Brodersen

Professor, Allmennmedisinsk Forskningsenhet AFE Nord.


Professor ved Allmennmedisinsk Forskningsenhet AFE Nord. 

Ansvarlig for Forskningsnetværket om overdiagnostik i helsetjenesten

  • Asha Bonney, John Brodersen, Volkert Siersma, Katharine See, Henry M. Marshall, Daniel Steinfort m.fl.:
    Validation of the psychosocial consequences of screening in lung cancer questionnaire in the international lung screen trial Australian cohort
    Health and Quality of Life Outcomes 2024 DOI
  • Christina Sadolin Damhus, John Brodersen, Gunnar Lauge Nielsen :
    Diagnostic flow for all patients referred with non-specific symptoms of cancer to a diagnostic centre in Denmark: A descriptive study
    European Journal of General Practice 2024 DOI
  • Alexandra Brandt Ryborg Jønsson, John Brodersen, Susanne Reventlow, Christina Svanholm, Anne Møller, Marius Brostrøm Kousgaard :
    General practitioners’ experiences of providing somatic care for patients with severe mental illness: a qualitative study
    BMC Primary Care 2024 DOI
  • Søren K. Nielsen, Frederikke G. Hansen, Torsten B. Rasmussen, Thomas Fischer, Jens F. Lassen, Trine Madsen m.fl.:
    Patients With Hypertrophic Cardiomyopathy and Normal Genetic Investigations Have Few Affected Relatives
    Journal of the American College of Cardiology 2023 DOI
  • Mille Falk Bjørch, Emma Grundtvig Gram, John Brodersen :
    Overdiagnosis in malignant melanoma: a scoping review
    BMJ Evidence-Based Medicine 2023 DOI
  • Katrine Tranberg, Alexandra Brandt Ryborg Jønsson, Tina Due, Volkert Siersma, John Brodersen, Kristine Bissenbakker m.fl.:
    The SOFIA pilot study: assessing feasibility and fidelity of coordinated care to reduce excess mortality and increase quality of life in patients with severe mental illness in a general practice setting; a cluster-randomised pilot trial
    BMC Primary Care 2023 ARKIV / DOI
  • Emma Grundtvig Gram, John Brodersen, Cæcilie Hansen, Kristen Pickles, Jenna Smith, Alexandra Brandt Ryborg Jønsson :
    Fictitious cases as a methodology to discuss sensitive health topics in focus groups
    International Journal of Qualitative Studies on Health and Well-being 2023 ARKIV / DOI
  • Alexandra Brandt Ryborg Jønsson, F.H.J. Martiny, M.K. Søndergaard, John Brodersen, T.D. Due, M.H. Nielsen m.fl.:
    Introducing extended consultations for patients with severe mental illness in general practice: Results from the SOFIA feasibility study
    BMC Primary Care 2023 ARKIV / DOI
  • Isabella Skaarup Kindt, Frederik Handberg Juul Martiny, Emma Grundtvig Gram, Anne Katrine Lykke Bie, Christian Patrick Jauernik, Or Joseph Rahbek m.fl.:
    The risk of bleeding and perforation from sigmoidoscopy or colonoscopy in colorectal cancer screening: A systematic review and meta-analyses
  • Camilla Aakjær Andersen, John Brodersen, Ole Graumann, Annette Sofie Davidsen, Martin Bach Jensen :
    Factors affecting point-of-care ultrasound implementation in general practice: A survey in Danish primary care clinics
    BMJ Open 2023 ARKIV / DOI
  • Emma Grundtvig Gram, Túlia Filipa Roberto Manso, Bruno Heleno, Volkert Siersma, Jessica á Rogvi, John Brodersen :
    The long-term psychosocial consequences of screen-detected ductal carcinoma in situ and invasive breast cancer
    Breast 2023 ARKIV / DOI
  • Emma Grundtvig Gram, Alexandra Brandt Ryborg Jønsson, John Brodersen, Christina Sadolin Damhus :
    Questioning ‘Informed Choice’ in Medical Screening: The Role of Neoliberal Rhetoric, Culture, and Social Context
    Healthcare 2023 ARKIV / DOI
  • Emma G. Gram, Sigrid W. Knudsen, John Brodersen, Alexandra Brandt Ryborg Jønsson :
    Women's experiences of age-related discontinuation from mammography screening: A qualitative interview study
    Health Expectations 2023 ARKIV / DOI
  • Christoffer Bjerre Haase, Rola Ajjawi, Margaret Bearman, John Brodersen, Torsten Risør, Klaus Hoeyer :
    Data as symptom: Doctors’ responses to patient-provided data in general practice
    Social Studies of Science 2023 ARKIV / DOI
  • Christoffer Bjerre Haase, Margaret Bearman, John Brodersen, Torsten Risør, Klaus Hoeyer :
    Data driven or data informed? How general practitioners use data to evaluate their own and colleagues’ clinical work in clusters
    Sociology of Health and Illness 2023 ARKIV / DOI
  • Dina Melanie Sørensen, Susanne Oksbjerg Dalton, Cecilie Lindström Egholm, Pernille Bidstrup, John Brodersen, Elizabeth Rosted :
    Barriers and facilitators to national guideline implementation for palliative cancer care in a Danish cross-sectoral healthcare setting: A qualitative study of healthcare professionals' experiences
    Psycho-Oncology 2023 ARKIV / DOI
  • Alexandra Brandt Ryborg Jønsson, John Brodersen :
    Klimaaftryk af overdiagnostik
    Ugeskrift for Læger 2023 ARKIV
  • Ingrid C. Andersen, Volkert Dirk Siersma, Kristoffer Marsaa, Nikolaj Preisel, Asbjørn Høegholm, John Brodersen m.fl.:
    Is it okay to choose to receive bad news by telephone? An observational study on psychosocial consequences of diagnostic workup for lung cancer suspicion
    Acta Oncologica 2022 DOI
  • Alexandra Brandt Ryborg Jønsson, Benedicte Møller Christensen, John Brodersen :
    Informationens ironi: Patienters frie adgang til sundhedsdata
    Tidsskrift for forskning i sygdom og samfund 2022 DOI
  • Camilla A. Andersen, Timothy C. Guetterman, Michael D. Fetters, John Brodersen, Annette Sofie Davidsen, Ole Graumann m.fl.:
    General Practitioners’ Perspectives on Appropriate Use of Ultrasonography in Primary Care in Denmark: A Multistage Mixed Methods Study
    Annals of Family Medicine 2022 DOI
  • Christian Fugl Hansen, Jonas Jensen, Anders Odgaard, Volkert Dirk Siersma, Jonathan D. Comins, John Brodersen m.fl.:
    'Four of five frequently used orthopedic PROMs possess inadequate content validity: a COSMIN evaluation of the mHHS, HAGOS, IKDC-SKF, KOOS and KNEES-ACL
    Knee Surgery, Sports Traumatology, Arthroscopy 2022 DOI
  • Kristine Bissenbakker, Anne Møller, John Brodersen, Alexandra Brandt Ryborg Jønsson :
    Conceptualisation of a measurement framework for Needs-based Quality of Life among patients with multimorbidity
    Journal of Patient-Reported Outcomes 2022 DOI
  • Camilla A. Andersen, Marie Espersen, John Brodersen, Janus Laust Thomsen, Martin Bach Jensen, Annette Sofie Davidsen :
    Learning strategies of general practitioners striving to achieve point-of-care ultrasound competence: a qualitative study
    Scandinavian Journal of Primary Health Care 2022 DOI
  • Christina Sadolin Damhus, Volkert Dirk Siersma, Anna R. Birkmose, Susanne Oksbjerg Dalton, John Brodersen :
    Use and diagnostic outcomes of cancer patient pathways in Denmark – is the place of initial diagnostic work-up an important factor?
    BMC Health Services Research 2022 DOI
  • Jessica Malmquist, Volkert Dirk Siersma, Mia S. Hestbech, Christine W. Bang, Dagný R. Nicolaisdóttir, John Brodersen :
    Short and long-term psychosocial consequences of participating in a colorectal cancer screening programme: a matched longitudinal study
    BMJ Evidence-Based Medicine 2022 DOI
  • Christoffer Bjerre Haase, John Brodersen, Jacob Bülow :
    Sarcopenia: early prevention or overdiagnosis?
    The BMJ 2022 DOI
  • Olsi Kusta, Charlotte Vestrup Rift, Torsten Risør, Eric Santoni-Rugiu, John Brodersen :
    Lost in digitization – A systematic review about the diagnostic test accuracy of digital pathology solutions
    Journal of Pathology Informatics 2022 ARKIV / DOI
  • Alexandra Brandt Ryborg Jønsson, John Brodersen :
    Snart er vi alle patienter: Overdiagnostik i medicinske og samfundsfaglige perspektiver
    Samfundslitteratur 2022
  • John Brodersen :
    Overdiagnostik: et negligeret og uløst problem i diagnostikken
    Ugeskrift for Læger 2023 FULLTEKST

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    John Brodersen er specialist i almen medicin (praktiserende læge) og har mere end ti års klinisk erfaring som læge. John Brodersen har en ph.d. inden for folkesundhedsvidenskab og moderne spørgeskemametodik, og er desuden ansat på Københavns Universitet, Afdeling for Almen Medicin. 

    John Brodersens forskning er fokuseret på forebyggelse, risiko, screening, overdiagnostik, evidensbaseret medicin, og multisygdom. Aktuelt arbejder han med screening for bryst-, lunge-, livmoderhals- og tarm-kræft, samt screening for abdominalt aorta aneurisme og prænatalscreening. Han har udviklet og valideret spørgeskemaer til måling af psykosociale konsekvenser hos personer, der er blevet overdiagnosticeret eller har fået et falsk positivt svar ved screening for livstruende sygdomme. Han har anvendt kvalitative og kvantitative metoder i sin forskning, blandt andet Rasch modellen til at kvantificere subjektive begreber såsom psykosociale konsekvenser. John Brodersen har publiceret bredt i danske, nordiske og internationale videnskabelige tidsskrifter.


    Underviser og vejleder i emnerne forebyggelse, screening, overdiagnostik, risiko, risikoformidling, det informerede samtykke ved screening, spørgeskemaudvikling og validering, og evidensbaseret medicin.