Recent Publications

The Clinical Effectiveness Research Group at the University of Oslo is publishing papers on clinical trials and observational research in leading medical journals. Topics of publication include cancer screening, with particular emphasis on breast cancer and colorectal cancer, endoscopy and epidemiologic methodology. 


Published: September 27, 2016
Journal: Annals of Internal Medicine
Title: Effectiveness of Screening Colonoscopy to Prevent Colorectal Cancer Among Medicare Beneficiaries
 Aged 70 to 79 Years

Authors: Xabier García-Albéniz, John Hsu, Michael Bretthauer and Miguel A. Hernán.

Published: June 17, 2016
Journal: Endoscopy
Title: Routine vs. on-demand analgesia in colonoscopy: a randomized clinical trial

Authors: Øyvind Holme, Thomas de Lange, Asbjørn Stallemo, Håvard Wiig, Audun Hasund, Katrine Dvergsnes, Kjetil Garborg, Carl Magnus Ystrøm, Magnus Løberg, Geir Hoff, Michael Bretthauer and Mette Kalager.

Published: June 17, 2016
Journal: Journal of Epidemiology and Community Health
Title: Lifestyle changes at middle age and mortality: a population-based prospective cohort study

Authors: Paula Berstad, Edoardo Botteri, Inger Kristin Larsen, Magnus Løberg, Mette Kalager, Øyvind Holme, Michael Bretthauer and Geir Hoff.

Published: May 23, 2016
Journal: JAMA Internal Medicine
Title: Population-Based Colonoscopy Screening for Colorectal Cancer: A Randomized Clinical Trial

Authors: Michael Bretthauer MD, Michal F. Kaminski MD, Magnus Løberg MD, Ann G. Zauber PhD, Jaroslaw Regula MD, Ernst J. Kuipers MD, Miguel A. Hernán MD, Eleanor McFadden MA, Annike Sunde MSc, Mette Kalager MD, Evelien Dekker MD, Iris Lansdorp-Vogelaar PhD, Kjetil Garborg MD, Maciej Rupinski MD, Manon C.W. Spaander MD, Marek Bugajski MD, Ole Høie MD, Tryggvi Stefansson MD, Geir Hoff MD and Hans-Olov Adami MD.

Published: May 17, 2016
Journal: Gastrointestinal Endoscopy
Title: Cecal intubation failure: Refer or change technique?

Authors: Kjetil Garborg MD, Michael Bretthauer MD PhD.

Published: May 10, 2016
Journal: Annals of Internal Medicine
Title: Who Is for CO2? Slow Adoption of Carbon Dioxide Insufflation in Colonoscopy 

Authors: Michael Bretthauer MD PhD, Mette Kalager MD PhD, Hans-Olov Adami MD PhD and Geir Hoff MD PhD.

Published: May 3, 2016
Journal: Epidemiology
Title: “Randomize, Then Consent” or “Consent, Then Randomize”?: Revitalizing the Issue of Preconsent Randomization

Authors: Magnus Løberg MD PhD, Mette Kalager MD PhD and Michael Bretthauer MD PhD.

Published: April 20, 2016
Journal: New England Journal of Medicine
Title: Recognizing Data Generation

Authors: Kalager MD PhD, Hans-Olov Adami MD PhD and Michael Bretthauer MD PhD.

Published: April 4, 2016
Journal: Endoscopy
Title: Rationale and design of the European Polyp Surveillance (EPoS) trials

Authors: Rodrigo Jover, Michael Bretthauer, Evelien Dekker, Øyvind Holme, Michal F. Kaminski, Magnus Løberg, Ann G. Zauber, Miguel A. Hernán, Iris Lansdorp-Vogelaar, Annike Sunde, Eleanor McFadden, Antoni Castells, Jaroslaw Regula, Enrique Quintero, Maria Pellisé, Carlo Senore, Mette Kalager, Mario Dinis-Ribeiro, Louise Emilsson, David F. Ransohoff, Geir Hoff and Hans-Olov Adami.

Published: March 23, 2016
Journal: Gut
Title: The continuing uncertainty about cancer risk in inflammatory bowel disease

Authors: Hans-Olov Adami, Michael Bretthauer, Louise Emilsson, Miguel A Hernán, Mette Kalager, Jonas F Ludvigsson and Anders Ekbom.

Published: March, 2016
Journal: United European Gastroenterology Journal
Title: Gradual stiffness versus magnetic imaging-guided variable stiffness colonoscopes: A randomized noninferiority trial a European overview.

Authors: Kjetil Garborg, Håvard Wiig, Audun Hasund, Jon Matre, Øyvind Holme, Geir Noraberg, Magnus Løberg, Mette Kalager, Hans-Olov Adami and Michael Bretthauer.

Published: February 24, 2016
Journal: Gut
Title: Detection rate of serrated polyps and serrated polyposis syndrome in colorectal cancer screening cohorts:
a European overview.

Authors: J E G IJspeert, R Bevan, C Senore, M F Kaminski, E J Kuipers, A Mroz, X Bessa, P Cassoni, C Hassan, A Repici, 
F Balaguer, C J Rees and E Dekker.


Published: January, 2016
Journal: Endoscopy
Title: Do’s and don’ts in evaluation of endoscopic screening for gastrointestinal cancers

Authors: Michael Bretthauer, Mette Kalager and Hans-Olov Adami.


By Anita Aalby
Published May 25, 2016 3:00 PM - Last modified Sep. 27, 2016 3:05 PM