• In the twilight zone: An epidemiological study of sleep-related hallucinations 

      Bless, Josef Johann; Hugdahl, Kenneth Jan; Kråkvik, Bodil; Vedul-Kjelsås, Einar; Kalhovde, Anne Martha; Grønli, Janne; Larøi, Frank (Peer reviewed; Journal article, 2021)
      Background Few studies have investigated hallucinations that occur at the onset/offset of sleep (called hypnagogic/hypnopompic hallucinations; HHHs), despite the fact that their prevalence in the general population is ...
    • In Vivo Microdialysis in Mice Captures Changes in Alzheimer´s Disease Cerebrospinal Fluid Biomarkers Consistent with Developing Pathology 

      Bjorkli, Christiana; Louet, Claire; Flo, Trude Helen; Hemler, Mary Elizabeth; Sandvig, Axel; Sandvig, Ioanna (Peer reviewed; Journal article, 2021)
      Background: Preclinical models of Alzheimer’s disease (AD) can provide valuable insights into the onset and progression of the disease, such as changes in concentrations of amyloid-β (Aβ) and tau in cerebrospinal fluid ...
    • In what ways do emerging adults with substance use problems experience their communities as influencing their personal recovery processes? 

      Bahl, Nina Kavita Heggen; Øversveen, Emil; Brodahl, Morten; Nafstad, Hilde Eileen; Blakar, Rolv Mikkel; Ness, Ottar; Landheim, Anne Signe; Tømmervik, Kristin (Peer reviewed; Journal article, 2022)
      Applying the multiple psychological sense of community concept (MPSOC), this study explored how emerging adults with substance use problems experience the influences of various senses of community and communities on their ...
    • In-Motion-App for remote General Movement Assessment: a multi-site observational study 

      Adde, Lars; Brown, Annemette; van den Broeck, Christine; DeCoen, Kris; Eriksen, Beate Horsberg; Fjørtoft, Toril Larsson; Groos, Daniel; Ihlen, Espen Alexander F.; Osland, Siril; Pascal, Aurelie; Paulsen, Henriette; Skog, Ole-Morten; Sivertsen, Wiebke; Støen, Ragnhild (Peer reviewed; Journal article, 2021)
      Objectives: To determine whether videos taken by parents of their infants' spontaneous movements were in accordance with required standards in the In-Motion-App, and whether the videos could be remotely scored by a trained ...
    • Incidence and Case Fatality of Aneurysmal Subarachnoid Hemorrhage Admitted to Hospital Between 2008 and 2014 in Norway 

      Øie, Lise Rystad; Solheim, Ole; Majewska, Paulina Luiza; Nordseth, Trond; Müller, Tomm Brostrup; Carlsen, Sven Magnus; Jensberg, Heidi; Salvesen, Øyvind; Gulati, Sasha (Peer reviewed; Journal article, 2020)
      Background To provide age- and sex-specific incidence and case fatality rates for non-traumatic aneurysmal subarachnoid hemorrhage (aSAH) in Norway. We also studied time trends in incidence and case fatality, as well as ...
    • Incidence and risk factors for major bleeding among patients undergoing percutaneous coronary intervention: Findings from the Norwegian Coronary Stent Trial (NORSTENT) 

      Samuelsen, Per-Jostein; Eggen, Anne Elise; Steigen, Terje; Wilsgaard, Tom; Kristensen, Andreas; Skogsholm, Anne; Holme, Elizabeth; van den Heuvel, Christian; Nordrehaug, Jan Erik; Bendz, Bjørn; Nilsen, Dennis W.T.; Bønaa, Kaare Harald (Peer reviewed; Journal article, 2021)
      Introduction Bleeding is a concern after percutaneous coronary intervention (PCI) and subsequent dual antiplatelet therapy (DAPT). We herein report the incidence and risk factors for major bleeding in the Norwegian Coronary ...
    • Incidence and survival of multiple myeloma: a population-based study of 10 524 patients diagnosed 1982–2017 

      Langseth, Øystein Olstad; Myklebust, Tor Åge; Johannessen, Tom Børge; Hjertner, Øyvind; Waage, Anders (Peer reviewed; Journal article, 2020)
      Population‐based studies from high‐quality nationwide cancer registries provide an important alternative to clinical trials in the assessment of the impact of modern myeloma treatment. Based on data from the Cancer Registry ...
    • Incidence of invasive Group B Streptococcal infection and the risk of infant death and cerebral palsy: a Norwegian Cohort Study 

      Mynarek, Maren; Bjellmo, Solveig; Lydersen, Stian; Afset, Jan Egil; Andersen, Guro Lillemoen; Vik, Torstein (Peer reviewed; Journal article, 2020)
      Background Group B Streptococcus (GBS) is the leading cause of invasive neonatal infection worldwide. In high-income countries mortality rates are 4–10%, and among survivors of GBS meningitis 30–50% have neurodevelopmental ...
    • Incidence of mild traumatic brain injury: A prospective hospital, emergency room and general practitioner-based study 

      Skandsen, Toril; Nilsen, Tom Ivar Lund; Einarsen, Cathrine Elisabeth; Normann, Ingunn; McDonagh, David; Håberg, Asta; Vik, Anne (Peer reviewed; Journal article, 2019)
      Background: There are no recent estimates of incidence rates of mild traumatic brain injury (MTBI) from Norway. Moreover, reported incidence rates rarely comprise cases of MTBI evaluated in the primary care setting. In ...
    • Incidence of the diagnosis of factitious disorders - Nationwide comparison study between Germany and Norway 

      Geile, Julian; Aasly, Jan; Madea, Burkhard; Schrader, Harald (Peer reviewed; Journal article, 2020)
      Factitious disorders (FD) like Munchausen syndrome are well known to most physicians, yet the corresponding ICD-10 diagnosis F68.1 remains severely under-assigned and often misdiagnosed. To approach this problem, we conducted ...
    • Incidence of thrombotic complications in hospitalised and non-hospitalised patients after COVID-19 diagnosis 

      Tholin, Birgitte; Ghanima, Waleed Khalid; Einvik, Gunnar; Aarli, Bernt Bøgvald; Brønstad, Eivind; Skjønsberg, Ole Henning; Stavem, Knut (Peer reviewed; Journal article, 2021)
      Infection with coronavirus disease-2019 (COVID-19) may predispose for venous thromboembolism (VTE). There is wide variation in reported incidence rates of VTE in COVID-19, ranging from 3% to 85%. Therefore, the true incidence ...
    • Incidence of Young Onset Dementia in Central Norway: A Population-Based Study 

      Kvello-Alme, Marte; Bråthen, Geir; White, Linda Rosemary; Sando, Sigrid Botne (Peer reviewed; Journal article, 2020)
      Background: The epidemiology of young onset dementia is little researched compared to late onset dementia. Information on incidence rates is vital for medical professionals, and for government planning purposes. Objective: ...
    • Incidence, Mechanisms of Injury and Mortality of Severe Traumatic Brain Injury: An Observational Population-Based Cohort Study from New Zealand and Norway 

      Weber, Clemens; Andreassen, Joakim Stray; Isles, Siobhan; Thorsen, Kenneth; McBride, Paul; Søreide, Kjetil; Civil, Ian (Peer reviewed; Journal article, 2022)
      Background - Comparing trauma registry data from different countries can help to identify possible differences in epidemiology, which may help to improve the care of trauma patients. Methods - This study directly compares ...
    • Incidence, recurring admissions and mortality of severe bacterial infections and sepsis over a 22-year period in the population-based HUNT study 

      Liyanarachi, Kristin Vardheim; Solligård, Erik; Mohus, Randi Marie; Åsvold, Bjørn Olav; Rogne, Tormod; Damås, Jan Kristian (Peer reviewed; Journal article, 2022)
      Purpose Severe bacterial infections are important causes of hospitalization and loss of health worldwide. In this study we aim to characterize the total burden, recurrence and severity of bacterial infections in the ...
    • An incomplete Circle of Willis is not a risk factor for white matter hyperintensities: The Tromsø Study 

      Hindenes, Lars Bakke; Håberg, Asta Kristine; Mathiesen, Ellisiv B; Vangberg, Torgil Riise (Peer reviewed; Journal article, 2020)
      Objective The Circle of Willis (CoW) is often underdeveloped or incomplete, leading to suboptimal blood supply to the brain. As hypoperfusion is thought to play a role in the aetiology of white matter hyperintensities ...
    • Incorporating Baseline Outcome Data in Individual Participant Data Meta-Analysis of Non-randomized Studies 

      Syrogiannouli, Lamprini; Wildisen, Lea; Meuwese, Christiaan; Bauer, Douglas C.; Cappola, Anne R.; Gussekloo, Jacobijn; den Elzen, Wendy P. J.; Trompet, Stella; Westendorp, Rudi G. J.; Jukema, J. Wouter; Ferrucci, Luigi; Ceresini, Graziano; Åsvold, Bjørn Olav; Chaker, Layal; Peeters, Robin P.; Imaizumi, Misa; Ohishi, Waka; Vaes, Bert; Völzke, Henry; Sgarbi, Josè A.; Walsh, John P.; Dullaart, Robin P. F.; Bakker, Stephan J. L.; Iacoviello, Massimo; Rodondi, Nicolas; Del Giovane, Cinzia (Peer reviewed; Journal article, 2022)
      Background: In non-randomized studies (NRSs) where a continuous outcome variable (e.g., depressive symptoms) is assessed at baseline and follow-up, it is common to observe imbalance of the baseline values between the ...
    • Increase in curative treatment and survival of lung cancer in Norway 2001-2016 

      Solberg, Steinar; Nilssen, Yngvar; Brustugun, Odd Terje; Grimsrud, Tom Kristian; Haram, Per Magnus; Helbekkmo, Nina; Helland, Åslaug; Hjelde, Harald Harris; Jakobsen, Bjørn; Møller, Bjørn; Petersen, Martin; Strand, Trond-Eirik; Wahl, Sissel Gyrid Freim; Aanerud, Marianne; Fjellbirkeland, Lars (Peer reviewed; Journal article, 2019)
      We have studied the alterations in the use of curative treatment and the outcome for lung cancer patients in Norway 2001–2016. The Cancer Registry of Norway has a practically complete registration of all cancer diagnoses, ...
    • Increased circulating IL-18 levels in severe mental disorders indicate systemic inflammasome activation 

      Szabo, Attila; O’Connell, Kevin; Ueland, Thor; Ahmed, Mashhood Sheikh; Agartz, Ingrid; Andreou, Dimitrios; Aukrust, Pål; Boye, Birgitte; Bøen, Erlend; Drange, Ole Kristian; Elvsåshagen, Torbjørn; Engh, John Abel; Hope, Sigrun; Høegh, Margrethe Collier; Joa, Inge; Johnsen, Erik; Kroken, Rune Andreas; Lagerberg, Trine Vik; Lekva, Tove; Malt, Ulrik Fredrik; Melle, Ingrid; Morken, Gunnar; Nærland, Terje; Steen, Vidar Martin; Sørensen, Kjetil; Wedervang-Resell, Kirsten; Auten Weibell, Melissa; Westlye, Lars Tjelta; Steen, Nils Eiel; Andreassen, Ole; Djurovic, Srdjan (Peer reviewed; Journal article, 2022)
      Background Schizophrenia (SCZ) and bipolar disorder (BD) are severe mental illnesses (SMI) that are part of a psychosis continuum, and dysregulated innate immune responses have been suggested to be involved in their ...
    • Increased circulating IL-18 levels in severe mental disorders indicate systemic inflammasome activation 

      Szabo, Attila; O'Connell, Kevin Sean; Ueland, Thor; Sheikh, Mashhood Ahmed; Agartz, Ingrid; Andreou, Dimitrios; Aukrust, Pål; Boye, Birgitte; Bøen, Erlend; Drange, Ole Kristian; Elvsåshagen, Torbjørn; Engh, John; Hope, Sigrun; Høegh, Margrethe Collier; Joa, Inge; Johnsen, Erik; Kroken, Rune Andreas; Lagerberg, Trine Vik; Lekva, Tove; Malt, Ulrik Fredrik; Melle, Ingrid; Morken, Gunnar; Nærland, Terje; Steen, Vidar Martin; Sørensen, Kjetil; Wedervang-Resell, Kirsten; Weibell, Melissa Anne Elin Authen; Westlye, Lars Tjelta; Steen, Nils Eiel; Andreassen, Ole; Djurovic, Srdjan (Peer reviewed; Journal article, 2021)
      Background -Schizophrenia (SCZ) and bipolar disorder (BD) are severe mental illnesses (SMI) that are part of a psychosis continuum, and dysregulated innate immune responses have been suggested to be involved in their ...
    • Increased deformation of the left ventricle during exercise test measured by global longitudinal strain can rule out significant coronary artery disease in patients with suspected unstable angina pectoris 

      Karlsen, Sigve; Melichova, Daniela; Dahlslett, Thomas; Grenne, Bjørnar; Sjøli, Benthe; Smiseth, Otto A.; Edvardsen, Thor; Brunvand, Harald (Peer reviewed; Journal article, 2022)
      Background Noninvasive identification of significant coronary artery disease (CAD) in patients with unstable angina pectoris (UAP) is challenging. Exercise stress testing has been used for years in patients with suspected ...