Biography

This is my personal collection of work, information and stuff I have done, have stumbled upon or just want to keep. I like sharing, and support the idea of transparency, so I might as well share it with others.

Interests
  • Clinical trials design
  • Statistical methods
  • Cluster randomised trials
  • Dose-finding trials
Education

  • PhD in Statistics, 2006

    Norwegian University of Science and Technology

  • Siv.Ing. in Statistics, 2001

    Norwegian University of Science and Technology

Recent Posts

How to make nice publishable adverse event tables using tidyverse
This blog post is just an answer to a colleague to provide R code for the generation of Adverse Event tables. And it is also nice to have the code available when I need it in the future.
Last updated on Feb 12, 2020 12 min read R
Using purrr to make nice publishable tables
Disclaimer: This is not an introduction to using purrr. For this purpose I recommend to read chapter 21 and 25 in Hadley Wickhams R for Data Science. Much of my programming time in R is spent on finding a suitable package doing the task I am looking for.
Last updated on Nov 15, 2023 6 min read R
Random allocation list generator
Introduction I have made a random allocation list generator using R Shiny. It is located at https://icostatistics.shinyapps.io/randlist/). The source code is on github. Every now and then I get the request to make a random allocation list according to some specifications, usually for a randomised controlled trial (RCT).
Last updated on Nov 15, 2023 5 min read R

Featured Publications

Marius Trøseid, José R. Arribas, Lambert Assoumou, Aleksander Rygh Holten, Julien Poissy, Vida Terzić, Fulvia Mazzaferri, Jesús Rodríguez-Baño, Joe Eustace, Maya Hites, Michael Joannidis, José Artur Paiva, Jean Reuter, Isabel Püntmann, Thale D. J. H. Patrick-Brown, Elin Westerheim, Katerina Nezvalova-Henriksen, Lydie Beniguel, Tuva Børresdatter Dahl, Maude Bouscambert, Monika Halanova, Zoltan Peterfi, Sotirios Tsiodras, Michael Rezek, Matthias Briel, Serhat Unal, Martin Schlegel, Florence Ader, Karine Lacombe, Cecilie Delphin Amdal, Serge Rodrigues, Kristian Tonby, Alexandre Gaudet, Lars Heggelund, Joy Mootien, Asgeir Johannessen, Jannicke Horjen Møller, Beatriz Diaz Pollan, Anders Aune Tveita, Anders Benjamin Kildal, Jean-Christophe Richard, Olav Dalgard, Victoria Charlotte Simensen, Aliou Baldé, Lucie De Gastines, Marta del Álamo, Burç Aydin, Fridtjof Lund-Johansen, Mary Anne Trabaud, Alpha Diallo, Bente Halvorsen, John-Arne Røttingen, Evelina Tacconelli, Yazdan Yazdanpanah, Inge C. Olsen, Dominique Costagliola, EU SolidAct study group (2023). Efficacy and safety of baricitinib in hospitalized adults with severe or critical COVID-19 (Bari-SolidAct): a randomised, double-blind, placebo-controlled phase 3 trial. Critical Care (London, England).

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Stine Bernitz, Rebecka Dalbye, Jun Zhang, Torbjørn M. Eggebø, Kathrine F. Frøslie, Inge Christoffer Olsen, Ellen Blix, Pål Øian (2019). The frequency of intrapartum caesarean section use with the WHO partograph versus Zhang's guideline in the Labour Progression Study (LaPS): a multicentre, cluster-randomised controlled trial. Lancet (London, England).

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Kristin K. Jørgensen, Inge C. Olsen, Guro L. Goll, Merete Lorentzen, Nils Bolstad, Espen A. Haavardsholm, Knut E. A. Lundin, Cato Mørk, Jørgen Jahnsen, Tore K. Kvien, NOR-SWITCH study group (2017). Switching from originator infliximab to biosimilar CT-P13 compared with maintained treatment with originator infliximab (NOR-SWITCH): a 52-week, randomised, double-blind, non-inferiority trial. Lancet (London, England).

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Recent Publications

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Siri Lillegraven, Nina Paulshus Sundlisæter, Anna-Birgitte Aga, Joseph Sexton, Inge Christoffer Olsen, Åse Stavland Lexberg, Tor Magne Madland, Hallvard Fremstad, Christian A. Høili, Gunnstein Bakland, Cristina Spada, Hilde Haukeland, Inger Myrnes Hansen, Ellen Moholt, Till Uhlig, Daniel H. Solomon, Désirée van der Heijde, Tore K. Kvien, Espen A. Haavardsholm (2023). Effect of tapered versus stable treatment with tumour necrosis factor inhibitors on disease flares in patients with rheumatoid arthritis in remission: a randomised, open label, non-inferiority trial. Annals of the Rheumatic Diseases.

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Mikkel Østergaard, Ronald F. van Vollenhoven, Anna Rudin, Merete Lund Hetland, Marte Schrumpf Heiberg, Dan C. Nordström, Michael T. Nurmohamed, Bjorn Gudbjornsson, Lykke Midtbøll Ørnbjerg, Pernille Bøyesen, Kristina Lend, Kim Hørslev-Petersen, Till Uhlig, Tuulikki Sokka, Gerdur Grondal, Simon Krabbe, Joakim Lindqvist, Inger Gjertsson, Daniel Glinatsi, Meliha Crnkic Kapetanovic, Anna-Birgitte Aga, Francesca Faustini, Pinja Parmanne, Tove Lorenzen, Cagnotto Giovanni, Johan Back, Oliver Hendricks, Daisy Vedder, Tuomas Rannio, Emma Grenholm, Maud Kristine Ljoså, Eli Brodin, Hanne Lindegaard, Annika Söderbergh, Milad Rizk, Alf Kastbom, Per Larsson, Line Uhrenholt, Søren Andreas Just, David J. Stevens, Trine Bay Laurbjerg, Gunnstein Bakland, Inge Christoffer Olsen, Espen A. Haavardsholm, Jon Lampa, NORD-STAR study group (2023). Certolizumab pegol, abatacept, tocilizumab or active conventional treatment in early rheumatoid arthritis: 48-week clinical and radiographic results of the investigator-initiated randomised controlled NORD-STAR trial. Annals of the Rheumatic Diseases.

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Erica Telford, Beatriz Grinsztejn, Inge Christoffer Olsen, Nicolas Pulik, France Mentré, Skerdi Haviari, Maxime Hentzien, Olivier Ségéral, Miquel B. Ekkelenkamp, Dimie Ogoina, Nathalie Strub-Wourgaft, Alpha Diallo, Yazdan Yazdanpanah, Alexandra Calmy (2023). The international Unity study for antivirals against mpox is a blueprint for future epidemics. Nature Medicine.

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Alain Amstutz, Benjamin Speich, France Mentré, Corina Silvia Rueegg, Drifa Belhadi, Lambert Assoumou, Charles Burdet, Srinivas Murthy, Lori Elizabeth Dodd, Yeming Wang, Kari A. O. Tikkinen, Florence Ader, Maya Hites, Maude Bouscambert, Mary Anne Trabaud, Mike Fralick, Todd C. Lee, Ruxandra Pinto, Andreas Barratt-Due, Fridtjof Lund-Johansen, Fredrik Müller, Olli P. O. Nevalainen, Bin Cao, Tyler Bonnett, Alexandra Griessbach, Ala Taji Heravi, Christof Schönenberger, Perrine Janiaud, Laura Werlen, Soheila Aghlmandi, Stefan Schandelmaier, Yazdan Yazdanpanah, Dominique Costagliola, Inge Christoffer Olsen, Matthias Briel (2023). Effects of remdesivir in patients hospitalised with COVID-19: a systematic review and individual patient data meta-analysis of randomised controlled trials. The Lancet. Respiratory Medicine.

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Vida Terzić, Léa Levoyer, Mélanie Figarella, Elisabetta Bigagli, Noémie Mercier, Lucie De Gastines, Séverine Gibowski, Marius Trøseid, Jacques Demotes, Inge Christoffer Olsen, Maya Hites, Florence Ader, José Ramón Arribas Lopez, France Mentré, Hélène Esperou, Dominique Costagliola, John-Arne Røttingen, Julien Poissy, Jean-Christophe Rozé, Adilia Warris, Jackie O'Leary, Ricardo M. Fernandes, Lambert Assoumou, Regis Hankard, Mark A. Turner, Yazdan Yazdanpanah, Alpha Diallo, EU-Response safety group, c4c safety group (2023). Implementation of a centralized pharmacovigilance system in academic pan-European clinical trials: Experience from EU-Response and conect4children consortia. British Journal of Clinical Pharmacology.

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