Browsing Institutt for helse og samfunn by Author "Løberg, Magnus"

Now showing items 1-20 of 24

  • A Comparison of Risk Classification Systems of Colorectal Adenomas: A Case-Cohort Study 
    Jodal, Henriette C.; Wieszczy, Paulina; Klotz, Dagmar; Herfindal, Magnhild; Barua, Ishita; Tag, Petter; Helsingen, Lise Mørkved; Refsum, Erle; Holme, Øyvind; Adami, Hans Olov; Bretthauer, Michael; Kalager, Mette; Løberg, Magnus (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
    Background & Aims Because post-polypectomy surveillance uses a growing proportion of colonoscopy capacity, more targeted surveillance is warranted. We therefore compared surveillance burden and cancer detection using 3 ...
  • A novel intragastric balloon for treatment of obesity and type 2 diabetes. A two-center pilot trial 
    Tønnesen, Christer Julseth; Hjelmesæth, Jøran Sture; Hofsø, Dag; Tonstad, Serena; Hertel, Jens Kristoffer; Heggen, Eli; Johnson, Line Kristin; Mathisen, Tor Erik; Kalager, Mette; Wieszczy, Paulina; Medhus, Asle Wilhelm; Løberg, Magnus; Aabakken, Lars; Bretthauer, Michael (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2021)
    Background and aims: Obesity with type-2 diabetes is a global challenge. Lifestyle interventions have limited effect for most patients. Bariatric surgery is highly effective, but resource-demanding, invasive and associated ...
  • A pilot study of implementation of endoscopic sleeve gastroplasty (ESG) in Norway 
    Tønnesen, Christer Julseth; Hjelmesæth, Jøran Sture; Aabakken, Lars; Lund, Randi Størdal; Johnson, Line Kristin; Hertel, Jens Kristoffer; Kalager, Mette; Løberg, Magnus; Bretthauer, Michael (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
    Background and aim Bariatric surgery is the most effective treatment for obesity but is invasive and associated with serious complications. Endoscopic sleeve gastroplasty (ESG) is a less invasive weight loss procedure ...
  • A progressive three-state model to estimate time to cancer: a likelihood-based approach 
    Akwiwu, Eddymurphy U.; Klausch, Thomas; Jodal, Henriette C.; Carvalho, Beatriz; Løberg, Magnus; Kalager, Mette; Berkhof, Johannes; H. Coupé, Veerle M. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)
    Background To optimize colorectal cancer (CRC) screening and surveillance, information regarding the time-dependent risk of advanced adenomas (AA) to develop into CRC is crucial. However, since AA are removed ...
  • Benefits and harms of mammography screening 
    Løberg, Magnus; Lousdal, Mette L; Bretthauer, Michael; Kalager, Mette (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2015)
    Mammography screening for breast cancer is widely available in many countries. Initially praised as a universal achievement to improve women's health and to reduce the burden of breast cancer, the benefits and harms of ...
  • Bounding the per-protocol effect in randomized trials: an application to colorectal cancer screening 
    Swanson, Sonja A; Holme, Øyvind; Løberg, Magnus; Kalager, Mette; Bretthauer, Michael; Hoff, Geir; Aas, Eline; Hernán, Miguel A (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2015)
    Background The per-protocol effect is the effect that would have been observed in a randomized trial had everybody followed the protocol. Though obtaining a valid point estimate for the per-protocol effect ...
  • Characteristics of circulatory failure after out-of-hospital cardiac arrest: A prospective cohort study 
    Langeland, Halvor; Bergum, Daniel; Løberg, Magnus; Bjørnstad, Knut; Skaug, Thomas Renhult; Nordseth, Trond; Klepstad, Pål; Skjaervold, Nils Kristian (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)
    Background Circulatory failure after out-of-hospital cardiac arrest (OHCA) as part of the postcardiac arrest syndrome (PCAS) is believed to be caused by an initial myocardial depression that later subsides into a superimposed ...
  • Circulatory trajectories after out-of-hospital cardiac arrest: a prospective cohort study 
    Langeland, Halvor; Bergum, Daniel; Nordseth, Trond; Løberg, Magnus; Skaug, Thomas; Bjørnstad, Knut; Gundersen, Ørjan; Skjærvold, Nils-Kristian; Klepstad, Pål (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2021)
    Background Circulatory failure frequently occurs after out-of-hospital cardiac arrest (OHCA) and is part of post-cardiac arrest syndrome (PCAS). The aim of this study was to investigate circulatory ...
  • Continuous development of colorectal cancer screening programs 
    Hoff, Geir; Ursin, Giske; Løberg, Magnus; de Lange, Thomas; Skovlund, Eva; Holme, Øyvind (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2019)
    Colorectal cancer (CRC) screening programs are far from perfect. Many crucial questions remain, yet expensive CRC screening services are implemented throughout the world without a plan on how to evaluate and improve the ...
  • Covid-19 transmission in fitness centers in Norway - a randomized trial 
    Helsingen, Lise M.; Løberg, Magnus; Refsum, Erle; Gjøstein, Dagrun K.; Wieszczy, Paulina; Olsvik, Ørjan; Juul, Frederik E.; Barua, Ishita; Jodal, Henriette C.; Herfindal, Magnhild; Mori, Yuichi; Jore, Solveig; Lund-Johansen, Fridtjof; Fretheim, Atle; Bretthauer, Michael; Kalager, Mette (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2021)
    Background Closed fitness centers during the Covid-19 pandemic may negatively impact health and wellbeing. We assessed whether training at fitness centers increases the risk of SARS-CoV-2 virus infection. ...
  • Effect of Colonoscopy Screening on Risks of Colorectal Cancer and Related Death 
    Bretthauer, Michael; Løberg, Magnus; Wieszczy, Paulina; Kalager, Mette; Emilsson, Louise; Garborg, Kjetil Kjeldstad; Rupinski, Maciej; Dekker, Evelien; Spaander, Manon; Bugajski, Marek; Holme, Øyvind; Zauber, Ann G.; Pilonis, Nastazja D.; Mróz, Andrzej; Kuipers, Ernst J.; Shi, Joy; Hernán, Miguel A.; Adami, Hans Olov; Regula, Jaroslaw; Hoff, Geir; Kamiński, Michał Filip (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)
    Background: Although colonoscopy is widely used as a screening test to detect colorectal cancer, its effect on the risks of colorectal cancer and related death is unclear. Methods: We performed a pragmatic, randomized trial ...
  • Effectiveness of flexible sigmoidoscopy screening in men and women and different age groups: Pooled analysis of randomised trials 
    Holme, Øyvind; Schoen, Robert E.; Senore, Carlo; Segnan, Nereo; Hoff, Geir; Løberg, Magnus; Bretthauer, Michael; Adami, Hans Olov; Kalager, Mette (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
    Objective: To compare the effectiveness of flexible sigmoidoscopy in screening for colorectal cancer by patient sex and age. Design: Pooled analysis of randomised trials (the US Prostate, Lung, Colorectal and Ovarian ...
  • Emergency hospital admissions, prognosis, and population mortality in Norway during the first wave of the Covid-19 epidemic 
    Jodal, Henriette C.; Juul, Frederik Emil; Barua, Ishita; Bretthauer, Michael; Kalager, Mette; Løberg, Magnus; Emilsson, Louise (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)
    Background: During the first wave of the Covid-19 epidemic, a national lockdown was established in Norway, and inhabitants were asked to contact healthcare only if absolutely necessary. We investigated hospital admissions ...
  • Endoscopy assistants influence the quality of colonoscopy 
    Holme, Øyvind; Pedersen, Ina Borgenheim; Medhus, Asle Wilhelm; Aabakken, Lars; Glomsaker, Tom Birger; Kvamme, Jan-Magnus; Løberg, Magnus; Bretthauer, Michael; Seip, Birgitte Karen Berggreen; Kjellevold, Øystein; Jørgensen, Anita; Furholm, Siv; Hoff, Geir; de Lange, Thomas (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2018)
    Background: Colonoscopy performance varies between endoscopists, but little is known about the impact of endoscopy assistants on key performance indicators. We used a large prospective colonoscopy quality database to perform ...
  • Fecal microbiota transplantation for primary Clostridium difficile infection 
    Juul, Frederik Emil; Garborg, Kjetil Kjeldstad; Bretthauer, Michael; Skudal, Hilde Kristin; Oines, Mari N.; Wiig, Håvard; Rose, Øystein; Seip, Birgitte Karen Berggreen; Thomas Lamont, J.; Midtvedt, Tore; Valeur, Jørgen; Kalager, Mette; Holme, Øyvind; Helsingen, Lise M.; Løberg, Magnus; Adami, Hans Olov (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)
  • Impact of Artificial Intelligence on Colonoscopy Surveillance After Polyp Removal: A Pooled Analysis of Randomized Trials 
    Mori, Yuichi; Wang, Pu; Løberg, Magnus; Misawa, Masashi; Repici, Alessandro; Spadaccini, Marco; Correale, Loredana; Antonelli, Giulio; Yu, Honggang; Gong, Dexin; Ishiyama, Misaki; Kudo, Shin-ei; Kamba, Shunsuke; Sumiyama, Kazuki; Saito, Yutaka; Nishino, Haruo; Liu, Peixi; Glissen Brown, Jeremy R.; Mansour, Nabil M.; Gross, Seth A.; Kalager, Mette; Bretthauer, Michael; Rex, Douglas K.; Sharma, Prateek; Berzin, Tyler M.; Hassan, Cesare (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
    Background and Aims Artificial intelligence (AI) tools aimed at improving polyp detection have been shown to increase the adenoma detection rate during colonoscopy. However, it is unknown how increased polyp detection rates ...
  • Impact of artificial intelligence on colorectal polyp detection for early-career endoscopists: an international comparative study 
    Ainechi, Diba; Misawa, Masashi; Barua, Ishita; Larsen, Solveig Linnea Veen; Paulsen, Vemund; Garborg, Kjetil Kjeldstad; Aabakken, Lars; Tønnesen, Christer Julseth; Løberg, Magnus; Kalager, Mette; Kudo, Shin-Ei; Hotta, Kinichi; Ohtsuka, Kazuo; Saito, Shoichi; Ikematsu, Hiroaki; Saito, Yutaka; Matsuda, Takahisa; Itoh, Hayato; Mori, Kensaku; Bretthauer, Michael; Mori, Yuichi (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)
    Background Artificial intelligence (AI) for polyp detection is being introduced to colonoscopy, but there is uncertainty how this affects endoscopists’ ability to detect polyps and neoplasms. We performed a video-based ...
  • Mortality in Norway and Sweden during the COVID-19 pandemic 
    Juul, Frederik E.; Jodal, Henriette C.; Barua, Ishita; Refsum, Erle; Olsvik, Ørjan; Helsingen, Lise M.; Løberg, Magnus; Bretthauer, Michael; Kalager, Mette; Emilsson, Louise (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2021)
    Background: Norway and Sweden are similar countries in terms of socioeconomics and health care. Norway implemented extensive COVID-19 measures, such as school closures and lockdowns, whereas Sweden did not. Aims: To compare ...
  • Polypectomy techniques among gastroenterologists in Norway – a nationwide survey 
    Pedersen, Ina Borgenheim; Løberg, Magnus; Hoff, Geir; Kalager, Mette; Bretthauer, Michael; Holme, Øyvind (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)
    Background and study aims Incomplete polyp removal has been estimated to cause 27 % of all colorectal cancers detected soon after colonoscopy. There is limited information regarding polypectomy techniques among endoscopists. ...
  • Prevention and early detection of colorectal cancer - A study of epidemiological methods to evaluate cancer screening and surveillance 
    Løberg, Magnus (Doctoral thesis / Doktoravhandling, 2015)