2025

• Porthun, Jan. (2025) cutpoint: Estimate cutpoints in the multivariable context of survival or time-to-event data.
  Programvare
• Brandsæter, Ingrid Øfsti; Porthun, Jan; Andersen, Eivind Richter; Hofmann, Bjørn Morten; Kjelle, Elin. (2025) Geographical variations and potential low-value neuroimaging examinations in Norway from 2013 to 2022. Research in Health Services and Regions
  Vitenskapelig artikkel
• Kjelle, Elin; Brandsæter, Ingrid Øfsti; Lauritzen, Peter Mæhre; Andersen, Eivind Richter; Porthun, Jan; Hofmann, Bjørn Morten. (2025) Quality of referrals and adherence to guidelines for adult patients with minimal to moderate head injuries in a selection of Norwegian hospitals. European Journal of Trauma and Emergency Surgery
  Vitenskapelig artikkel

2024

• Anker, Markus S.; Porthun, Jan; Bayes-Genis, Antoni; Van Linthout, Sophie. (2024) Time for differential weight management in heart failure. European Journal of Heart Failure
  Leder
• Bobrowski, Arnold; Porthun, Jan. (2024) Mental health and somatic symptom burden of patients: A questionnaire study / Psychische Gesundheit und somatische Symptombelastung von Patient*innen: Eine Fragebogenstudie. Osteopathische Medizin
  Vitenskapelig artikkel
• Anker, Markus S.; Lück, Laura C.; Khan, Muhammad Shahzeb; Porthun, Jan; Hadzibegovic, Sara; Alessia, Lena. (2024) New cardiovascular biomarkers in patients with advanced cancer – A prospective study comparing MR-proADM, MR-proANP, copeptin, high-sensitivity troponin T and NT-proBNP. European Journal of Heart Failure
  Vitenskapelig artikkel
• Anker, Markus S.; Porthun, Jan; Bonnet, Guillaume; Schulze, P. Christian; Rassaf, Tienush; Landmesser, Ulf. (2024) Percutaneous Transcatheter Edge-To-Edge Repair for Functional Mitral Regurgitation in Heart Failure: A Meta-Analysis of 3 Randomized Controlled Trials. Journal of the American College of Cardiology
  Vitenskapelig oversiktsartikkel/review
• Fröhlich, Ann-Kathrin; Porthun, Jan; Talha, Khawaja M.; Lena, Alessia; Hadzibegovic, Sara; Wilkenshoff, Ursula. (2024) Association of an impaired GH-IGF-I axis with cardiac wasting in patients with advanced cancer. Clinical Research in Cardiology
  Vitenskapelig artikkel
• Hofmann, Bjørn Morten; Brandsæter, Ingrid Øfsti; Andersen, Eivind Richter; Porthun, Jan; Kjelle, Elin. (2024) Temporal and geographical variations in diagnostic imaging in Norway. BMC Health Services Research
  Vitenskapelig artikkel
• Manschel, Jonas; Porthun, Jan; Winkler, Ulrike; Beuckels, Jean Marie A T; Martin, David. (2024) Characteristics, Opportunities, and Challenges of Osteopathy Based on the Perceptions of Osteopaths in Austria: Qualitative Interview Study. JMIR Human Factors
  Vitenskapelig artikkel
• Manschel, Jonas; Porthun, Jan; Beuckels, Jean Marie A T; Martin, David. (2024) Characteristics, opportunities, and challenges of osteopathy (COCO) in the perceptions of osteopaths in Germany, Austria, and Switzerland: a metasynthesis. European Journal of Medical Research
  Vitenskapelig artikkel

2023

• Anker, Markus S.; Lena, Alessia; Roeland, Eric J.; Porthun, Jan; Schmitz, Sebastian; Hadzibegovic, Sara. (2023) Patient-reported ability to walk 4 m and to wash: New clinical endpoints and predictors of survival in patients with pre-terminal cancer. Journal of Cachexia, Sarcopenia and Muscle
  Vitenskapelig artikkel
• Vifladt, Anne; Ballangrud, Randi; Myhr, Kjetil; Grusd, Eystein; Porthun, Jan; Mæhlum, Pål Anders. (2023) Team training program’s impact on medication administration, teamwork and patient safety culture in an ambulance service (TEAM-AMB): a longitudinal multimethod study protocol. BMJ Open
  Vitenskapelig artikkel
• Anker, Markus S; Potthoff, Sophia; Lena, Alessia; Porthun, Jan; Hadzibegovic, Sara; Evertz, Ruben. (2023) Cardiovascular health-related quality of life in cancer: a prospective study comparing the ESC HeartQoL and EORTC QLQ-C30 questionnaire. European Journal of Heart Failure
  Vitenskapelig artikkel
• Hadzibegovic, Sara; Porthun, Jan; Lena, Alessia; Weinländer, Pia; Lück, Laura C.; Potthoff, Sophia. (2023) Hand grip strength in patients with advanced cancer: A prospective study. Journal of Cachexia, Sarcopenia and Muscle
  Vitenskapelig artikkel
• Lena, Alessia; Wilkenshoff, Ursula; Hadzibegovic, Sara; Porthun, Jan; Rösnick, Lukas; Fröhlich, Ann-Kathrin. (2023) Clinical and Prognostic Relevance of Cardiac Wasting in Patients With Advanced Cancer. Journal of the American College of Cardiology
  Vitenskapelig artikkel
• Freisleben, Moritz; Petzel, Anja; Jülicher, Anne; Jonas, Anna; Betzler, Janina; Choly, Natalia. (2023) Loop Excision for Precancers of the Uterine Cervix: Local or General Anaesthetic?. Geburtshilfe und Frauenheilkunde
  Vitenskapelig artikkel

2022

• Husebø, Sissel Iren Eikeland; Olden, Mona Karin; Pedersen, Malinn; Porthun, Jan; Ballangrud, Randi. (2022) Translation and psychometric testing of the Norwegian version of the “Patients’ Perspectives of Surgical Safety Questionnaire”. Journal of Perianesthesia Nursing
  Vitenskapelig artikkel
• Janisz, Marjatta; Porthun, Jan. (2022) The role of osteopathy in the birth process - a qualitative study / Die Rolle der Osteopathie im Geburtsprozess – eine qualitative Studie. Deutsche Zeitschrift für Osteopathie
  Vitenskapelig artikkel

2021

• Albrecht, Annemarie; Porthun, Jan; Eucker, Jan; Coats, Andrew J.S.; Haehling, Stephan von; Pezzutto, Antonio. (2021) Spontaneous Non-Sustained Ventricular Tachycardia and Premature Ventricular Contractions and Their Prognostic Relevance in Patients with Cancer in Routine Care. Cancers
  Vitenskapelig artikkel
• Porthun, Jan; Røstelien, Tonette. (2021) Arbeidsbok anatomi: for paramedisin, paramedic og akuttmedisin utenfor sykehus. BOD-Sverige
  Lærebok
• Wedenig, Katrin; Zemann, Wolfgang; Singer, Georg; Porthun, Jan. (2021) Middle Ear Pathologies and the Mobility of the Temporal Bone in Children with Cleft Lip and Palate - A Pilot Study / Mittelohrpathologien und Mobilität des Os temporale bei Säuglingen mit Lippen-Kiefer-Gaumenspalte. Deutsche Zeitschrift für Osteopathie
  Vitenskapelig artikkel
• Hadzibegovic, Sara; Alessia, Lena; Churchill, Timothy W; Ho, Jennifer E.; Potthoff, Sophia; Denecke, Corinna. (2021) Heart Failure with preserved ejection fraction according to the HFA-PEFF score in COVID-19 patients: clinical correlates and echocardiographic findings. European Journal of Heart Failure
  Vitenskapelig artikkel

2020

• Porthun, Jan. (2020) Fjernundervisning i anatomi og fysiologi.
  Digitale læremidler
• Anker, Markus S; von Haehling, Stephan; Coats, Andrew JS; Riess, Hanno; Eucker, Jan; Porthun, Jan. (2020) Ventricular tachycardia, premature ventricular contractions, and mortality in unselected patients with lung, colon, or pancreatic cancer: a prospective study. European Journal of Heart Failure
  Vitenskapelig artikkel
• Meier, Manuela Dorothea; Porthun, Jan. (2020) Characteristics, challenges and opportunities of osteopathy in Switzerland / Situation, Chancen und Herausforderungen der Osteopathie in der Schweiz. Deutsche Zeitschrift für Osteopathie
  Vitenskapelig artikkel
• Porthun, Jan. (2020) Arbeidsbok Anatomi Bevegelsesapparatet: for studenter som studerer medisin, helsefag eller idret. Ondefo-forlag
  Lærebok

2019

• Lohr, Christine; Schmidt, Tobias; Medina-Porqueres, Iván; Braumann, Klaus Michael; Reer, Rüdiger; Porthun, Jan. (2019) Diagnostic accuracy, validity, and reliability of Tensiomyography to assess muscle function and exercise-induced fatigue in healthy participants. A systematic review with meta-analysis. Journal of Electromyography & Kinesiology
  Vitenskapelig oversiktsartikkel/review
• Rechberger, Verena; Biberschick, Michael; Porthun, Jan. (2019) Effectiveness of an osteopathic treatment on the autonomic nervous system: a systematic review of the literature. European Journal of Medical Research
  Vitenskapelig oversiktsartikkel/review
• Porthun, Jan; Manschel, Jonas. (2019) Characteristics, Opportunities, and Challenges of Osteopathy (COCO) in the Perceptions of Osteopaths in Germany, Austria, and Switzerland: Protocol for a Comprehensive Mixed Methods Study. JMIR Research Protocols
  Vitenskapelig artikkel
• Diekmann, Emanuel Amier; Porthun, Jan; Dietz, Felix. (2019) Osteopathie bei somatoformen Störungen – Systematisches Review . Deutsche Zeitschrift für Osteopathie
  Vitenskapelig oversiktsartikkel/review

2018

• Porthun, Jan; Høye-Porthun, Elisabeth. (2018) Tysk medisinsk ordbok : tysk-norsk, norsk-tysk. Ondefo-forlag
  Oppslagsverk

2017

• Porthun, Jan. (2017) Pilot studies are important (Pilotstudien sind wichtig). osteopathisch - Fachzeitschrift für Osteopathen
  Fagartikkel
• Schedler, Alexander; Porthun, Jan. (2017) Calcification of the falx cerebri - more often than expected (Falxverkalkungen – häufiger als vermutet). osteopathisch - Fachzeitschrift für Osteopathen
  Fagartikkel
• Deutschmann, Günther; Porthun, Jan; Grabner, Othmar; Leskowschek, Heinrich; Graff, Wolfgang; Sammer, Andreas. (2017) Influence of osteopathic treatments after open carpal tunnel release (OCTR). Osteopathische Medizin
  Vitenskapelig artikkel
• Perstling, Annegret; Porthun, Jan. (2017) Effects of osteopathy in the psychological field - a systematic literature review (Wirkungen der Osteopathie im psychischen Bereich – eine systematische Literaturübersicht). Deutsche Zeitschrift für Osteopathie
  Vitenskapelig artikkel

2016

• Porthun, Jan; Røstelien, Tonette. (2016) Arbeidsbok anatomi. Ondefo
  Lærebok

2015

• Porthun, Jan; Liem, Torsten; Ciranna-Raab, Cristian; Dobler, Tobias; Goldenstein, Rüdiger; Kaiser, Friederike. (2015) Osteopathie von A-Z. Karl F. Haug Verlag Karl F. Haug Verlag
  Leksikon
• Porthun, Jan. (2015) Arbeidsbok anatomi bevegelsesapparatet. Ondefo
  Lærebok
• Körner, Johanna; Porthun, Jan; Woisetschläger, Gebhard. (2015) Testing the interrater reliability of osteopathic findings in the examination of the abdominal diaphragm without specification of test implementation. / Interrater-Reliabilität von osteopathischen Befunden am Beispiel der Zwerchfelluntersuchung. Osteopathische Medizin
  Vitenskapelig artikkel

2014

• Porthun, Jan. (2014) Knöcherne Varianten des Kraniums am Pterion / A qualitative analysis of anatomical variation within the pterion. Osteopathische Medizin
  Vitenskapelig artikkel

2010

• Porthun, Jan. (2010) Virvelsøylens variasjoner. En anatomisk og statistisk kartlegging av mulige variasjoner og anomalier av columna vertebralis. Osteopaten
  Fagartikkel