• Antibody levels in a cohort of pregnant women after the 2009 influenza A(H1N1) pandemic: Waning and association with self-reported severity and duration of illness 

      Tunheim, Gro; Laake, Ida; Robertson, Anna Hayman; Waalen, Kristian; Hungnes, Olav; Næss, Lisbeth Meyer; Cox, Rebecca Jane; Mjaaland, Siri; Trogstad, Lill (Peer reviewed; Journal article, 2018-12-09)
      Background: A population‐based pregnancy cohort was established in Norway to study potential effects of exposure to the 2009 influenza pandemic or pandemic vaccination during pregnancy. Objectives: We studied maternal ...
    • Comorbidities treated in primary care in children with chronic fatigue syndrome 

      Bakken, Inger Johanne; Tveito, Kari; Aaberg, Kari Modalsli; Ghaderi, Sara; Gunnes, Nina; Trogstad, Lill; Magnus, Per; Stoltenberg, Camilla; Håberg, Siri Eldevik (Peer reviewed; Journal article, 2016-09-02)
      Background: Chronic fatigue syndrome/myalgic encephalomyelitis (CFS/ME) is a complex condition. Causal factors are not established, although underlying psychological or immunological susceptibility has been proposed. We ...
    • Diet matters, particularly in pregnancy - results from MoBa studies of maternal diet and pregnancy outcomes 

      Brantsæter, Anne Lise; Haugen, Margaretha; Myhre, Ronny; Sengpiel, Verena; Englund-Ögge, Linda; Nilsen, Roy Miodini; Borgen, Iren; Duarte-Salles, Talita; Papadopoulou, Eleni; Vejrup, Kristine; von Ruesten, Anne; Hillesund, Elisabet Rudjord; Birgisdottir, Bryndis Eva; Magnus, Per; Trogstad, Lill; Jacobsson, Bo; Bacelis, Jonas; Myking, Solveig; Knutsen, Helle Katrine; Kvalem, Helen Engelstad; Alexander, Jan; Mendez, Michelle; Meltzer, Helle Margrete (Peer reviewed; Journal article, 2014)
      Awareness that maternal diet may influence the outcome of pregnancy as well as the long-term health of mother and child has increased in recent years. A new food frequency questionnaire (FFQ) was developed and validated ...
    • Distinct T and NK cell populations may serve as immune correlates of protection against symptomatic pandemic influenza A(H1N1) virus infection during pregnancy 

      Savic, Miloje; Dembinski, Jennifer Lynn; Laake, Ida; Hungnes, Olav; Cox, Rebecca Jane; Oftung, Fredrik; Trogstad, Lill; Mjaaland, Siri (Peer reviewed; Journal article, 2017-11-16)
      Maternal influenza infection during pregnancy is associated with increased risk of morbidity and mortality. However, the link between the anti-influenza immune responses and health-related risks during infection is not ...
    • Genetic predisposition to hypertension is associated with preeclampsia in European and Central Asian women 

      Steinthorsdottir, Valgerdur; McGinnis, Ralph; Williams, Nicholas O.; Stefánsdóttir, Lilja; Thorleifsson, Gudmar; Shooter, Scott; Fadista, João; Sigurdsson, Jon K.; Auro, Kirsi; Berezina, Galina; Borges, Maria-Carolina; Bumpstead, Suzannah; Bybjerg-Grauholm, Jonas; Colgiu, Irina; Dolby, Vivien A.; Dudbridge, Frank; Engel, Stephanie M.; Franklin, Christopher S.; Frigge, Michael L; Frisbaek, Yr; Geirsson, Reynir T.; Geller, Frank; Gretarsdottir, Solveig; Gudbjartsson, Daniel F.; Harmon, Quaker; Hougaard, David Michael; Hegay, Tatyana; Helgadottir, Anna; Hjartardóttir, Sigrún; Jääskeläinen, Tiina; Johannsdottir, Hrefna; Jonsdottir, Ingileif; Juliusdottir, Thorhildur; Kalsheker, Noor; Kasimov, Abdumadjit; Kemp, John P.; Kivinen, Katja; Klungsøyr, Kari; Lee, Wai K; Melbye, Mads; Miedzybrodska, Zosia; Moffett, Ashley; Najmutdinova, Dilbar; Nishanova, Firuza; Olafsdottir, Thorunn; Perola, Markus; Pipkin, Fiona Broughton; Poston, Lucilla; Prescott, Gordon; Saevarsdottir, Saedis; Salimbayeva, Damilya; Scaife, Paula Juliet; Skotte, Line; Staines-Urias, Eleonora; Stefansson, Olafur A.; Sørensen, Karina Meden; Thomsen, Liv Cecilie Vestrheim; Tragante, Vinicius; Trogstad, Lill; Simpson, Nigel A.B.; Aripova, Tamara; Casas, Juan P; Dominiczak, Anna F; Walker, James J.; Thorsteinsdottir, Unnur; Iversen, Ann-Charlotte; Feenstra, Bjarke; Lawlor, Deborah A.; Boyd, Heather Allison; Magnus, Per; Laivuori, Hannele; Zakhidova, Nodira; Syvatova, Gulnara; Stefansson, Kari; Morgan, Linda (Journal article; Peer reviewed, 2020)
      Preeclampsia is a serious complication of pregnancy, affecting both maternal and fetal health. In genome-wide association meta-analysis of European and Central Asian mothers, we identify sequence variants that associate ...
    • Hospitalization following influenza infection and pandemic vaccination in multiple sclerosis patients: a nationwide population-based registry study from Norway 

      Ghaderi, Sara; Berg-Hansen, Pål; Bakken, Inger Johanne Landsjøåsen; Magnus, Per; Trogstad, Lill; Håberg, Siri Eldevik (Peer reviewed; Journal article, 2020)
      Patients with multiple sclerosis (MS) are at increased risk of infections and related worsening of neurological function. Influenza infection has been associated with increased risk of various neurological complications. ...
    • Narcolepsy and hypersomnia in Norwegian children and young adults following the influenza A(H1N1) 2009 pandemic 

      Trogstad, Lill; Bakken, Inger Johanne; Gunnes, Nina; Ghaderi, Sara; Stoltenberg, Camilla; Magnus, Per; Håberg, Siri Eldevik (Peer reviewed; Journal article, 2017-04)
      Background: Associations between influenza infection and sleep disorders are poorly studied. We investigated if pandemic influenza infection or vaccination with Pandemrix in 2009/2010 was associated with narcolepsy or ...
    • Parvovirus B19 DNAemia in pregnant women in relation to perinatal death: A nested case‐control study within a large population‐based pregnancy cohort 

      Barlinn, Regine; Trogstad, Lill; Rollag, Halvor; Frøen, Jahn Frederik; Magnus, Per; Dudman, Susanne Gjeruldsen (Journal article; Peer reviewed, 2020)
      Introduction: Parvovirus B19 (B19V) is the infectious cause of exanthema infectiosum. In Europe around 40% of pregnant women are susceptible to infection. Having small children at home is the main risk factor for contracting ...
    • Pregnancy-Related Risk Factors Are Associated With a Significant Burden of Treated Hypertension Within 10 Years of Delivery: Findings From a Population-Based Norwegian Cohort 

      Egeland, Grace M.; Skurtveit, Svetlana; Staff, Anne Cathrine; Eide, Geir Egil; Daltveit, Anne Kjersti; Klungsøyr, Kari; Trogstad, Lill; Magnus, Per; Brantsæter, Anne Lise; Haugen, Margaretha (Peer reviewed; Journal article, 2018-05)
      Background: The association between pregnancy complications and women's later cardiovascular disease has, primarily, been evaluated in studies lacking information on important covariates. This report evaluates the prospective ...
    • Seasonal and pandemic influenza during pregnancy and risk of fetal death: A Norwegian registry‑based cohort study 

      Gunnes, Nina; Gjessing, Håkon K.; Bakken, Inger Johanne Landsjøåsen; Ghaderi, Sara; Gran, Jon Michael; Hungnes, Olav; Magnus, Per; Samuelsen, Sven Ove; Skrondal, Anders; Stoltenberg, Camilla; Trogstad, Lill; Wilcox, Allen James; Håberg, Siri Eldevik (Journal article; Peer reviewed, 2020)
      Previous studies of fetal death with maternal influenza have been inconsistent. We explored the effect of maternal influenza-like illness (ILI) in pregnancy on the risk of fetal death, distinguishing between diagnoses ...
    • Two age peaks in the incidence of chronic fatigue syndrome/myalgic encephalomyelitis: a population-based registry study from Norway 2008-2012 

      Bakken, Inger Johanne; Tveito, Kari; Gunnes, Nina; Ghaderi, Sara; Stoltenberg, Camilla; Trogstad, Lill; Håberg, Siri Eldevik; Magnus, Per (Peer reviewed; Journal article, 2014-10-01)
      Background: The aim of the current study was to estimate sex- and age-specific incidence rates of chronic fatigue syndrome/myalgic encephalomyelitis (CFS/ME) using population-based registry data. CFS/ME is a debilitating ...