• Body mass index and childhood symptoms of depression, anxiety, and attention-deficit hyperactivity disorder: A within-family Mendelian randomization study 

      Hughes, Amanda M.; Sanderson, Eleanor; Morris, Tim; Ayorech, Ziada; Tesli, Martin Steen; Ask, Helga; Reichborn-Kjennerud, Ted; Andreassen, Ole; Magnus, Per Minor; Helgeland, Øyvind; Johansson, Stefan; Njølstad, Pål Rasmus; Davey Smith, George; Havdahl, Alexandra Karoline Saasen; Howe, Laura D.; Davies, Neil Martin (Peer reviewed; Journal article, 2022)
      Background: Higher BMI in childhood is associated with emotional and behavioural problems, but these associations may not be causal. Results of previous genetic studies imply causal effects but may reflect influence of ...
    • Characterization of the genetic architecture of infant and early childhood body mass index 

      Helgeland, Øyvind; Vaudel, Marc; Sole-Navais, Pol; Flatley, Christopher; Juodakis, Julius; Bacelis, Jonas; Koløen, Ingvild; Knudsen, Gun Peggy Strømstad; Johansson, Bente Berg; Magnus, Per Minor; Reichborn-Kjennerud, Ted; Juliusson, Pétur Benedikt; Stoltenberg, Camilla; Holmen, Oddgeir Lingaas; Andreassen, Ole; Jacobsson, Bo; Njølstad, Pål Rasmus; Johansson, Stefan (Peer reviewed; Journal article, 2022)
      Early childhood obesity is a growing global concern; however, the role of common genetic variation on infant and child weight development is unclear. Here, we identify 46 loci associated with early childhood body mass index ...
    • Cohort Profile: COVIDMENT: COVID-19 cohorts on mental health across six nations 

      Unnarsdóttir, Anna Bára; Lovik, Anikó; Fawns-Ritchie, Chloe; Ask, Helga; Kõiv, Kadri; Hagen, Kristen; Didriksen, Maria; Christoffersen, Lea Arregui Nordahl; Garðarsson, Alexander Berg; McIntosh, Andrew; Kähler, Anna K.; Campbell, Archie; Hauksdóttir, Arna; Erikstrup, Christian; Mikkelsen, Dorte Helenius; Altschul, Drew; Thordardottir, Edda Bjork; Frans, Emma Maria; Kvale, Gerd; Tómasson, Gunnar; Kariis, Hanna Maria; Jónsdóttir, Harpa Lind; Rúnarsdóttir, Harpa; Magnúsdóttir, Ingibjörg; Eid, Jarle; Jakobsdóttir, Jóhanna; Nielsen, Kaspar René; Kaspersen, Kathrine Agergård; Milani, Lili; Trogstad, Lill-Iren Schou; Yi, Lu; Bruun, Mie Topholm; Sullivan, Patrick F.; Magnus, Per Minor; Shen, Qing; Nesvåg, Ragnar; Brandlistuen, Ragnhild Eek; Mägi, Reedik; Ostrowski, Sisse Rye; Løkhammer, Solveig; Solem, Stian; Reichborn-Kjennerud, Ted; Hansen, Thomas Folkmann; Werge, Thomas; Aspelund, Thor; Porteous, David J.; Fang, Fang; Lehto, Kelli; Andreassen, Ole; Pedersen, Ole Birger Vesterager; Hellard, Stephanie Francoise Claire Le; Valdimarsdóttir, Unnur Anna (Journal article; Peer reviewed, 2021)
      Key features • COVIDMENT [www.covidment.is] is a NordForsk-funded research collaboration across six nations, with the overarching aim to significantly advance current knowledge on mental morbidity trajectories associated ...
    • Effects of race and ethnicity on perinatal outcomes in high-income and upper-middle-income countries: an individual participant data meta-analysis of 2 198 655 pregnancies 

      Sheikh, Jameela; Allotey, John; Kew, Tania; Fernández-Félix, Borja M.; Zamora, Javier; Khalil, Asma; Eskild, Anne; Haavaldsen, Camilla; Magnus, Per Minor; Salvesen, Kjell Å; Skråstad, Ragnhild Bergene; Sletner, Line; Staff, Anne Cathrine; Trogstad, Lill; Thangaratinam, Shakila; Abdollahain, Mali; Adank, Annemarijne; Allen, Rebecca; Andersen, Louise B.; Anggraini, Dewi; Hawkins, Lee Ann; Archer, Lucinda; Askie, Lisa M; Audibert, Francois; Baschat, Ahmet A.; Betran, Ana Pilar; Bhattacharya, Sohinee; Brown, Mark; Browne, Joyce L.; Klipstein-Grobusch, Kerstin; Carbillon, Lionel; Carroli, Guillermo; Cecatti, Jose G; Chappell, Lucy C.; Conde-Agudelo, Agustin; Coomarasamy, Arri; Crovetto, Francesca; da Silva Costa, Fabricio; Daskalakis, George; Dekker, Gustaaf A; Eero, Kajantie; Eisensee, Inge; Facchinetti, Fabio; Farrar, Diane; Ferrazzani, Sergio; Ferrazzi, Enrico; Figueiro-Filho, Ernesto A; Figuera, Francesc; Forest, Jean-Claude; Frusca, Tiziana (Peer reviewed; Journal article, 2022)
      Background Existing evidence on the effects of race and ethnicity on pregnancy outcomes is restricted to individual studies done within specific countries and health systems. We aimed to assess the impact of race and ...
    • Genome-wide association study of placental weight identifies distinct and shared genetic influences between placental and fetal growth 

      Beaumont, Robin N.; Flatley, Christopher; Vaudel, Marc; Wu, Xiaoping; Chen, Jing; Moen, Gunn-Helen Øiseth; Skotte, Line; Helgeland, Øyvind; Solé-Navais, Pol; Banasik, Karina; Albiñana, Clara; Ronkainen, Justiina; Fadista, João; Stinson, Sara Elizabeth; Trajanoska, Katerina; Wang, Carol A.; Westergaard, David; Srinivasan, Sundararajan; Sánchez-Soriano, Carlos; Bilbao, Jose Ramon; Allard, Catherine; Groleau, Marika; Kuulasmaa, Teemu; Leirer, Daniel J.; White, Frédérique; Jacques, Pierre-Étienne; Cheng, Haoxiang; Hao, Ke; Andreassen, Ole; Åsvold, Bjørn Olav; Atalay, Mustafa; Bhatta, Laxmi; Bouchard, Luigi; Brumpton, Ben Michael; Brunak, Søren; Bybjerg-Grauholm, Jonas; Ebbing, Cathrine; Elliott, Paul; Engelbrechtsen, Line; Erikstrup, Christian; Estarlich, Marisa; Franks, Stephen; Gaillard, Romy; Geller, Frank; Grove, Jakob; Hougaard, David M.; Kajantie, Eero Olavi; Morgen, Camilla S.; Nøhr, Ellen Aagaard; Nyegaard, Mette; Palmer, Colin N. A.; Pedersen, Ole Birger; Rivadeneira, Fernando; Sebert, Sylvain; Shields, Beverley M.; Stoltenberg, Camilla; Surakka, Ida; Thørner, Lise Wegner; Ullum, Henrik; Vaarasmaki, Marja; Vilhjalmsson, Bjarni J.; Willer, Cristen J.; Lakka, Timo A.; Gybel-Brask, Dorte; Bustamante, Mariona; Hansen, Torben; Pearson, Ewan R.; Reynolds, Rebecca M.; Ostrowski, Sisse R.; Pennell, Craig E.; Jaddoe, Vincent W. V.; Felix, Janine F.; Hattersley, Andrew T.; Melbye, Mads; Lawlor, Deborah A.; Hveem, Kristian; Werge, Thomas; Nielsen, Henriette Svarre; Magnus, Per Minor; Evans, David M.; Jacobsson, Bo; Järvelin, Marjo-Riitta; Zhang, Ge; Hivert, Marie-France; Johansson, Stefan; Freathy, Rachel M.; Feenstra, Bjarke; Njølstad, Pål Rasmus (Peer reviewed; Journal article, 2023)
      A well-functioning placenta is essential for fetal and maternal health throughout pregnancy. Using placental weight as a proxy for placental growth, we report genome-wide association analyses in the fetal (n = 65,405), ...
    • 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 (Peer reviewed; Journal article, 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 from ...
    • Within-sibship genome-wide association analyses decrease bias in estimates of direct genetic effects 

      Howe, Laurence J.; Nivard, Michel G.; Morris, Tim T.; Hansen, Ailin Falkmo; Rasheed, Humaira; Cho, Yoonsu; Chittoor, Geetha; Ahlskog, Rafael; Lind, Penelope A.; Palviainen, Teemu; van der Zee, Matthijs D.; Cheesman, Rosa Catherine Gillespie; Mangino, Massimo; Wang, Yunzhang; Li, Shuai; Klaric, Lucija; Ratliff, Scott M.; Bielak, Lawrence F.; Nygaard, Marianne; Giannelis, Alexandros; Willoughby, Emily A.; Reynolds, Chandra A.; Balbona, Jared V.; Andreassen, Ole; Ask, Helga; Baras, Aris; Bauer, Christopher R.; Boomsma, Dorret I.; Campbell, Archie; Campbell, Harry; Chen, Zhengming; Christofidou, Paraskevi; Corfield, Elizabeth Claire; Dahm, Christina C.; Dokuru, Deepika R.; Evans, Luke M.; de Geus, Eco J. C.; Giddaluru, Sudheer; Gordon, Scott D.; Harden, K. Paige; Hill, W. David; Hughes, Amanda; Kerr, Shona M.; Kim, Yongkang; Kweon, Hyeokmoon; Latvala, Antti; Lawlor, Deborah A.; Li, Liming; Lin, Kuang; Magnus, Per Minor; Magnusson, Patrik K. E.; Mallard, Travis T.; Martikainen, Pekka; Mills, Melinda C.; Njølstad, Pål Rasmus; Overton, John D.; Pedersen, Nancy L.; Porteous, David J.; Reid, Jeffrey; Silventoinen, Karri; Southey, Melissa C.; Stoltenberg, Camilla; Tucker-Drob, Elliot M.; Wright, Margaret J.; Kweon, Hyeokmoon; Koellinger, Philipp D.; Benjamin, Daniel J.; Turley, Patrick; Howe, Laurence J.; Nivard, Michel G.; Morris, Tim T.; Plomin, Robert; Havdahl, Alexandra; Bartels, Meike; Martin, Nicholas G.; Oskarsson, Sven; Justice, Anne E.; Millwood, Iona Y.; Hveem, Kristian; Willer, Cristen J.; Åsvold, Bjørn Olav; Kaprio, Jaakko; Medland, Sarah E.; Walters, Robin G.; Evans, David M.; Smith, George Davey; Hayward, Caroline; Brumpton, Ben; Hemani, Gibran; Davies, Neil Martin; Hewitt, John K.; Keller, Matthew C.; Stallings, Michael C.; Lee, James J.; Christensen, Kaare; Kardia, Sharon L. R.; Peyser, Patricia A.; Smith, Jennifer A.; Wilson, James F.; Hopper, John L.; Hägg, Sara; Spector, Tim D.; Pingault, Jean-Baptiste; Næss, Øyvind Erik; Davey Smith, George; Brumpton, Ben Michael (Peer reviewed; Journal article, 2022)
      Estimates from genome-wide association studies (GWAS) of unrelated individuals capture effects of inherited variation (direct effects), demography (population stratification, assortative mating) and relatives (indirect ...