• Airway symptoms and atopy in young children prescribed asthma medications: A large‐scale cohort study 

      Mikalsen, Ingvild Bruun; Dalen, Ingvild; Karlstad, Øystein; Eide, Geir Egil; Magnus, Maria Christine; Nystad, Wenche; Øymar, Knut (Peer reviewed; Journal article, 2019)
      Diagnosing asthma and deciding treatment are difficult in young children. An inappropriate and too high prescription rate of inhaled corticosteroids (ICS) is suggested, but how airway symptoms are associated with prescriptions ...
    • Associations between epigenetic age acceleration and infertility 

      Lee, Yunsung; Bohlin, Jon; Page, Christian Magnus; Nustad, Haakon E.; Harris, Jennifer Ruth; Magnus, Per Minor; Magnus, Per; Jugessur, Astanand; Magnus, Maria Christine; Håberg, Siri Eldevik; Hanevik, Hans Ivar (Journal article; Peer reviewed, 2022)
      Study question: Is the use of ART, a proxy for infertility, associated with epigenetic age acceleration? Summary answer: The epigenetic age acceleration measured by Dunedin Pace of Aging methylation (DunedinPoAm) differed ...
    • Cohort Profile: Pregnancy And Childhood Epigenetics (PACE) Consortium 

      Felix, Janine F.; Joubert, Bonnie R.; Baccarelli, Andrea A.; Sharp, Gemma C.; Almqvist, Catarina; Annesi-Maesano, Isabella; Arshad, Hasan; Baïz, Nour; Bakermans-Kranenburg, Marian J.; Bakulski, Kelly M.; Binder, Elisabeth B.; Bouchard, Luigi; Breton, Carrie V.; Brunekreef, Bert; Brunst, Kelly J.; Burchard, Esteban G.; Bustamante, Mariona; Chatzi, Leda; Munthe-Kaas, Monica Cheng; Corpeleijn, Eva; Czamara, Darina; Dabelea, Dana; Smith, George Davey; De Boever, Patrick; Duijts, Liesbeth; Dwyer, Terence; Eng, Celeste; Eskenazi, Brenda; Everson, Todd M.; Falahi, Fahimeh; Fallin, M. Daniele; Farchi, Sara; Fernández, Mariana F.; Gao, Lu; Gaunt, Tom R.; Ghantous, Akram; Gillman, Matthew W.; Gonseth, Semira; Grote, Veit; Gruzieva, Olena; Håberg, Siri Eldevik; Herceg, Zdenko; Hivert, Marie-France; Holland, Nina; Holloway, John W.; Hoyo, Cathrine; Hu, Donglei; Huang, Rae-Chi; Huen, Karen; Järvelin, Marjo-Riitta; Jima, Dereje D.; Just, Allan C.; Karagas, Margaret R.; Magnus, Per; Nystad, Wenche; Page, Christian; Lie, Rolv T.; Magnus, Maria Christine (Peer reviewed; Journal article, 2018-02)
    • DNA methylation in newborns conceived by assisted reproductive technology 

      Håberg, Siri Eldevik; Page, Christian Magnus; Lee, Yunsung; Nustad, Haakon Egdetveit; Magnus, Maria Christine; Haftorn, Kristine Løkås; Carlsen, Ellen Øen; Denault, William Robert Paul; Bohlin, Jon; Jugessur, Astanand; Magnus, Per Minor; Gjessing, Håkon Kristian; Lyle, Robert (Journal article; Peer reviewed, 2022)
      Assisted reproductive technology (ART) may affect fetal development through epigenetic mechanisms as the timing of ART procedures coincides with the extensive epigenetic remodeling occurring between fertilization and embryo ...
    • Early life growth and associations with lung function and bronchial hyperresponsiveness at 11-years of age 

      Mikalsen, Ingvild Bruun; Halvorsen, Thomas; Juliusson, Pétur Benedikt; Magnus, Maria Christine; Nystad, Wenche; Stensrud, Trine; Størdal, Ketil; Vollsæter, Maria; Øymar, Knut Asbjørn Alexander (Journal article; Peer reviewed, 2021)
      Low birthweight and being born small-for-gestational age (SGA) are linked to asthma and impaired lung function. Particularly, poor intrauterine growth followed by rapid catch-up growth during childhood may predispose for ...
    • An EPIC predictor of gestational age and its application to newborns conceived by assisted reproductive technologies 

      Haftorn, Kristine Løkås; Lee, Yunsung; Denault, William Robert Paul; Page, Christian Magnus; Nustad, Haakon Egdetveit; Lyle, Robert; Gjessing, Håkon Kristian; Malmberg, Anni; Magnus, Maria Christine; Næss, Øyvind; Czamara, Darina; Räikkönen, Katri; Lahti, Jari; Magnus, Per Minor; Håberg, Siri Eldevik; Jugessur, Astanand; Bohlin, Jon (Journal article; Peer reviewed, 2021)
      Background: Gestational age is a useful proxy for assessing developmental maturity, but correct estimation of gestational age is difficult using clinical measures. DNA methylation at birth has proven to be an accurate ...
    • Evaluating national guidelines for monitoring early growth using routinely collected data in Bergen, Norway 

      Balthasar, Melissa Rajini; Roelants, Mathieu; Brannsether-Ellingsen, Bente; Stangenes, Kristine Marie; Magnus, Maria Christine; Håberg, Siri Eldevik; Øverland, Simon Nygaard; Juliusson, Pétur Benedikt (Journal article; Peer reviewed, 2023)
      Aims: The overarching aim of this study was to evaluate the Norwegian guidelines for growth monitoring using routinely collected data from healthy children up to five years of age. We analysed criteria for both status ...
    • An examination of mediation by DNA methylation on birthweight differences induced by assisted reproductive technologies 

      Carlsen, Ellen Øen; Lee, Yunsung; Magnus, Per Minor; Jugessur, Astanand; Page, Christian Magnus; Nustad, Haakon Egdetveit; Håberg, Siri Eldevik; Lie, Rolv Terje; Magnus, Maria Christine (Journal article; Peer reviewed, 2022)
      Background Children born after assisted reproductive technologies (ART) differ in birthweight from those naturally conceived. It has been hypothesized that this might be explained by epigenetic mechanisms. We examined ...
    • Growth in children conceived by ART 

      Magnus, Maria Christine; Wilcox, Allen J.; Fadum, Elin Anita; Gjessing, Håkon; Opdahl, Signe; Juliusson, Petur Benedikt; Romundstad, Liv Bente; Håberg, Siri Eldevik (Journal article; Peer reviewed, 2021)
      STUDY QUESTION Is the growth pattern of children conceived by ART different compared to naturally conceived children. SUMMARY ANSWER Both ART and underlying parental subfertility may contribute to differences in early ...
    • Maternal BMI at the start of pregnancy and offspring epigenome-wide DNA methylation: findings from the pregnancy and childhood epigenetics (PACE) consortium 

      Sharp, Gemma C; Salas, Lucas A; Monnereau, Claire; Bohlin, Jon; Page, Christian; Lie, Rolv T.; Magnus, Maria Christine; Munthe-Kaas, Monica Cheng; Nystad, Wenche (Peer reviewed; Journal article, 2017-10)
      Pre-pregnancy maternal obesity is associated with adverse offspring outcomes at birth and later in life. Individual studies have shown that epigenetic modifications such as DNA methylation could contribute. Within the ...
    • Meta-analysis of epigenome-wide association studies in neonates reveals widespread differential DNA methylation associated with birthweight 

      Küpers, Leanne K.; Monnereau, Claire; Sharp, Gemma C.; Yousefi, Paul; Salas, Lucas A.; Ghantous, Akram; Page, Christian Magnus; Reese, Sarah E.; Wilcox, Allen J.; Czamara, Darina; Starling, Anne P.; Novoloaca, Alexei; Lent, Samantha; Roy, Ritu; Hoyo, Cathrine; Breton, Carrie V.; Allard, Catherine; Just, Allan C.; Bakulski, Kelly M.; Holloway, John W.; Everson, Todd M.; Xu, Cheng-Jian; Huang, Rae-Chi; van der Plaat, Diana A.; Wielscher, Matthias; Merid, Simon Kebede; Ullemar, Vilhelmina; Rezwan, Faisal I.; Lahti, Jari; van Dongen, Jenny; Langie, Sabine A.S.; Richardson, Tom G.; Magnus, Maria Christine; Nohr, Ellen A.; Xu, Zongli; Duijts, Liesbeth; Zhao, Shanshan; Zhang, Weiming; Plusquin, Michelle; DeMeo, Dawn L.; Solomon, Olivia; Heimovaara, Joosje H.; Jima, Dereje D.; Gao, Lu; Bustamante, Mariona; Perron, Patrice; Wright, Robert O.; Hertz-Picciotto, Irva; Zhang, Hongmei; Karagas, Margaret R.; Gehring, Ulrike; Marsit, Carmen J.; Beilin, Lawrence J.; Vonk, Judith M.; Jarvelin, Marjo-Riitta; Bergström, Anna; Örtqvist, Anne K.; Ewart, Susan; Villa, Pia M.; Moore, Sophie E.; Willemsen, Gonneke; Standaert, Arnout R.L.; Håberg, Siri Eldevik; Sørensen, Thorkild I.A.; Taylor, Jack A.; Räikkönen, Katri; Yang, Ivana V.; Kechris, Katerina; Nawrot, Tim S.; Silver, Matt J.; Gong, Yun Yun; Richiardi, Lorenzo; Kogevinas, Manolis; Litonjua, Augusto A.; Eskenazi, Brenda; Huen, Karen; Mbarek, Hamdi; Maguire, Rachel L.; Dwyer, Terence; Vrijheid, Martine; Bouchard, Luigi; Baccarelli, Andrea A.; Croen, Lisa A.; Karmaus, Wilfried; Anderson, Denise; de Vries, Maaike; Sebert, Sylvain; Kere, Juha; Karlsson, Robert; Arshad, Syed Hasan; Hämäläinen, Esa; Routledge, Michael N.; Boomsma, Dorret I.; Feinberg, Andrew P.; Newschaffer, Craig J.; Govarts, Eva; Moisse, Matthieu; Fallin, M. Daniele; Melén, Erik; Prentice, Andrew M.; Kajantie, Eero; Almqvist, Catarina; Oken, Emily; Dabelea, Dana; Boezen, H. Marike; Melton, Philip E.; Wright, Rosalind J.; Koppelman, Gerard H.; Trevisi, Letizia; Hivert, Marie-France; Sunyer, Jordi; Munthe-Kaas, Monica Cheng; Murphy, Susan K.; Corpeleijn, Eva; Wiemels, Joseph L.; Holland, Nina; Herceg, Zdenko; Binder, Elisabeth B.; Davey Smith, George; Jaddoe, Vincent V.W.; Lie, Rolv T.; Nystad, Wenche; London, Stephanie J.; Lawlor, Debbie A.; Relton, Caroline L.; Snieder, Harold; Felix, Janine F. (Peer reviewed; Journal article, 2019-04-23)
      Birthweight is associated with health outcomes across the life course, DNA methylation may be an underlying mechanism. In this meta-analysis of epigenome-wide association studies of 8,825 neonates from 24 birth cohorts in ...
    • 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 ...
    • Parental smoking and risk of childhood-onset type 1 diabetes 

      Magnus, Maria Christine; Tapia, German; Olsen, Sjurdur Frodi; Granström, Charlotta; Mårild, Karl Staffan; Ueland, Per Magne; Midttun, Øivind; Svensson, Jannet; Johannesen, Jesper; Skrivarhaug, Torild; Joner, Geir; Njølstad, Pål Rasmus; Størdal, Ketil; Stene, Lars Christian Mørch (Peer reviewed; Journal article, 2018-11)
      Background: A few prospective studies suggest an association between maternal smoking during pregnancy and lower risk of type 1 diabetes. However, the role of unmeasured confounding and misclassification remains unclear. ...
    • Paternal and maternal obesity but not gestational weight gain is associated with type 1 diabetes 

      Magnus, Maria Christine; Olsen, Sjurdur Frodi; Granström, Charlotta; Lund-Blix, Nicolai Andre; Svensson, Jannet; Johannesen, Jesper; Fraser, Abigail; Skrivarhaug, Torild; Joner, Geir; Njølstad, Pål Rasmus; Størdal, Ketil; Stene, Lars Christian Mørch (Peer reviewed; Journal article, 2018-02-05)
      Background Our objective was to examine the associations of parental body mass index (BMI) and maternal gestational weight gain with childhood-onset type 1 diabetes. Comparing the associations of maternal and paternal BMI ...
    • Paternal and maternal obesity but not gestational weight gain is associated with type 1 diabetes 

      Magnus, Maria Christine; Olsen, Sjurdur Frodi; Granström, Charlotta; Lund-Blix, Nicolai Andre; Svensson, Jannet; Johannesen, Jesper; Fraser, Abigail; Skrivarhaug, Torild; Joner, Geir; Njølstad, Pål Rasmus; Størdal, Ketil; Stene, Lars Christian Mørch (Peer reviewed; Journal article, 2018-04)
      Background Our objective was to examine the associations of parental body mass index (BMI) and maternal gestational weight gain with childhood-onset type 1 diabetes. Comparing the associations of maternal and paternal BMI ...
    • 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 ...
    • The relationship between cesarean delivery and fecundability: a population-based cohort study 

      Sima, Yeneabeba Tilahun; Magnus, Maria Christine; Kvalvik, Liv Grimstvedt; Morken, Nils-Halvdan; Klungsøyr, Kari; Skjaerven, Rolv; Sørbye, Linn Marie (Journal article; Peer reviewed, 2023)
      Background: Previous studies have found that women who undergo cesarean delivery have fewer pregnancies. Cesarean delivery is also more common among women with lower fecundability. The potential role of cesarean delivery ...
    • 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 ...
    • Smoking and infertility: multivariable regression and Mendelian randomization analyses in the Norwegian Mother, Father and Child Cohort Study 

      Hernáez, Álvaro; Wootton, Robyn E; Page, Christian Magnus; Skåra, Karoline Hansen; Fraser, Abigail; Rogne, Tormod; Magnus, Per Minor; Njølstad, Pål Rasmus; Andreassen, Ole; Burgess, Stephen; Lawlor, Deborah A.; Magnus, Maria Christine (Journal article; Peer reviewed, 2022)
      Objective To investigate the association between smoking and infertility. Design Prospective study. Setting Nationwide cohort. Patients 28,606 women and 27,096 men with questionnaire and genotype information ...