• Nasjonale registerkilder i epidemiologisk forskning 

      Håberg, Siri Eldevik; Ebbing, Marta; Stoltenberg, Camilla (Peer reviewed; Journal article, 2017)
    • Neuraminidase inhibitors during pregnancy and risk of adverse neonatal outcomes and congenital malformations: population based European register study 

      Graner, Sophie; Svensson, Tobias; Beau, Anna-Belle; Damase-Michel, Christine; Engeland, Anders; Furu, Kari; Hviid, Anders; Håberg, Siri Eldevik; Mølgaard-Nielsen, Ditte; Pasternak, Björn; Kieler, Helle (Peer reviewed; Journal article, 2017)
      Objective: To evaluate the possible effects of exposure to neuraminidase inhibitors during embryo-fetal life with respect to adverse neonatal outcomes and congenital malformations. Design: Population based multinational ...
    • Nucleated red blood cells explain most of the association between DNA methylation and gestational age 

      Haftorn, Kristine Løkås; Denault, William Robert Paul; Lee, Yunsung; Page, Christian Magnus; Romanowska, Julia; Lyle, Robert; Næss, Øyvind Erik; Kristjansson, Dana; Magnus, Per Minor; Håberg, Siri Eldevik; Bohlin, Jon; Jugessur, Astanand (Journal article; Peer reviewed, 2023)
      Determining if specific cell type(s) are responsible for an association between DNA methylation (DNAm) and a given phenotype is important for understanding the biological mechanisms underlying the association. Our EWAS of ...
    • Parental income and mental disorders in children and adolescents: prospective register-based study 

      Kinge, Jonas Minet; Øverland, Simon Nygaard; Flatø, Martin; Dieleman, Joseph; Røgeberg, Ole Jørgen; Magnus, Maria Christine; Evensen, Miriam; Tesli, Martin Steen; Skrondal, Anders; Stoltenberg, Camilla; Vollset, Stein Emil; Håberg, Siri Eldevik; Torvik, Fartein Ask (Journal article; Peer reviewed, 2021)
      Background Children with low-income parents have a higher risk of mental disorders, although it is unclear whether other parental characteristics or genetic confounding explain these associations and whether it is true ...
    • Paternal and maternal birthweight and offspring risk of macrosomia at term gestations: A nationwide population study 

      Rasmussen, Svein; Carlsen, Ellen Øen; Linde, Lorentz; Morken, Nils-Halvdan; Håberg, Siri Eldevik; Ebbing, Cathrine (Journal article; Peer reviewed, 2023)
      Background There is a paucity of data on whether parents' macrosomia (birthweight ≥4500 g) status influences the risk of macrosomia in the offspring. The role of maternal overweight in the generational effect of macrosomia ...
    • Pregnancy and risk of COVID-19: a Norwegian registry-linkage study 

      Magnus, Maria Christine; Oakley, Laura L.; Gjessing, Håkon K.; Stephansson, Olof; Engjom, Hilde Marie; Macsali, Ferenc; Juliusson, Pétur Benedikt; Nybo Andersen, Anne-Marie; Håberg, Siri Eldevik (Journal article; Peer reviewed, 2021)
      Objective: To compare the risk of acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection and contact with specialist healthcare services for coronavirus disease 2019 (COVID-19) between pregnant and non-pregnant ...
    • Prevalence and predictors of post-COVID-19 symptoms in general practice - a registry-based nationwide study 

      Hetlevik, Øystein; Wensaas, Knut-Arne; Baste, Valborg; Emberland, Knut Erik; Özgümüs, Türküler; Håberg, Siri Eldevik; Rørtveit, Guri (Journal article; Peer reviewed, 2023)
      Background With Norwegian national registry data, we assessed the prevalence of post-COVID-19 symptoms at least 3 months after confirmed infection, and whether sociodemographic factors and pre-pandemic health problems were ...
    • Risk of miscarriage in women with psychiatric disorders 

      Magnus, Maria Christine; Havdahl, Alexandra; Morken, Nils-Halvdan; Wensaas, Knut-Arne; Wilcox, Allen J.; Håberg, Siri Eldevik (Journal article; Peer reviewed, 2021)
      Background Some psychiatric disorders have been associated with increased risk of miscarriage. However, there is a lack of studies considering a broader spectrum of psychiatric disorders to clarify the role of common as ...
    • Role of maternal age and pregnancy history in risk of miscarriage: prospective register based study 

      Magnus, Maria Christine; Wilcox, Allen J; Morken, Nils-Halvdan; Weinberg, Clarice R.; Håberg, Siri Eldevik (Peer reviewed; Journal article, 2019)
      Objectives: To estimate the burden of miscarriage in the Norwegian population and to evaluate the associations with maternal age and pregnancy history. Design: Prospective register based study. Setting: Medical Birth ...
    • 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 ...
    • Statistical methods to detect mother-father genetic interaction effects on risk of infertility: A genome-wide approach 

      Skodvin, Siri Nærland; Gjessing, Håkon Kristian; Jugessur, Astanand; Romanowska, Julia; Page, Christian Magnus; Corfield, Elizabeth Claire; Lee, Yunsung; Håberg, Siri Eldevik; Gjerdevik, Miriam (Journal article; Peer reviewed, 2023)
      Infertility is a heterogeneous phenotype, and for many couples, the causes of fertility problems remain unknown. One understudied hypothesis is that allelic interactions between the genotypes of the two parents may influence ...
    • 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 ...
    • Vanishing twin syndrome among ART singletons and pregnancy outcomes 

      Magnus, Maria Christine; Ghaderi, Sara; Morken, Nils-Halvdan; Magnus, Per; Romundstad, Liv Bente Bergem; Skjaerven, Rolv; Wilcox, Allen J; Håberg, Siri Eldevik (Peer reviewed; Journal article, 2017-11)
      STUDY QUESTION: Among babies born by ART, do singleton survivors of a vanishing twin have lower birth weight than other singletons? SUMMARY ANSWER: Vanishing twin syndrome (VTS) was associated with lower birth weight among ...
    • The X-factor in ART: does the use of assisted reproductive technologies influence DNA methylation on the X chromosome? 

      Romanowska, Julia; Nustad, Haakon Egdetveit; Page, Christian Magnus; Denault, William Robert Paul; Lee, Yunsung; Magnus, Maria Christine; Haftorn, Kristine Løkås; Gjerdevik, Miriam; Novakovic, Boris; Saffery, Richard; Gjessing, Håkon K.; lyle, robert; Magnus, Per Minor; Håberg, Siri Eldevik; Jugessur, Astanand (Journal article; Peer reviewed, 2023)
      Background Assisted reproductive technologies (ART) may perturb DNA methylation (DNAm) in early embryonic development. Although a handful of epigenome-wide association studies of ART have been published, none have investigated ...