Browsing Bergen Open Research Archive by Author "Kuja-Halkola, Ralf"

Now showing items 1-6 of 6

    • Attention-deficit/hyperactivity disorder symptoms and dietary habits in adulthood: A large population-based twin study in Sweden 

      Li, Lin; Taylor, Mark J.; Bälter, Katarina; Kuja-Halkola, Ralf; Chen, Qi; Hegvik, Tor-Arne; Tate, Ashley E.; Chang, Zheng; Arias-Vasquez, Alejandro; Hartman, Catharina A.; Larsson, Henrik (Journal article; Peer reviewed, 2020)
      Associations between adult attention-deficit/hyperactivity disorder (ADHD) symptoms and dietary habits have not been well established and the underlying mechanisms remain unclear. We explored these associations using a ...

    • Familial co-aggregation of attention-deficit/ hyperactivity disorder and autoimmune diseases: a cohort study based on Swedish population-wide registers 

      Hegvik, Tor-Arne; Chen, Qi; Kuja-Halkola, Ralf; Klungsøyr, Kari; Butwicka, Agnieszka; Lichtenstein, Paul; Almqvist, Catarina; Faraone, Stephen V.; Haavik, Jan; Larsson, Henrik (Journal article; Peer reviewed, 2021)
      Background Attention-deficit/hyperactivity disorder (ADHD) has been associated with several autoimmune diseases (AD), both within individuals and across relatives, implying common underlying genetic or environmental factors ...

    • Genome-wide association meta-analysis of childhood and adolescent internalizing symptoms 

      Jami, Eshim S.; Hammerschlag, Anke R.; Ip, Hill F.; Allegrini, Andrea G.; Benyamin, Beben; Border, Richard; Diemer, Elizabeth W.; Jiang, Chang; Karhunen, Ville; Lu, Yi; Lu, Qing; Mallard, Travis T.; Mishra, Pashupati P.; Nolte, Ilja M.; Palviainen, Teemu; Peterson, Roseann E.; Sallis, Hannah M.; Shabalin, Andrey A.; Tate, Ashley E.; Thiering, Elisabeth; Vilor-Tejedor, Natàlia; Wang, Carol; Zhou, Ang; Adkins, Daniel E.; Alemany, Silvia; Ask, Helga; Chen, Qi; Corley, Robin P.; Ehli, Erik A.; Evans, Luke M.; Havdahl, Alexandra; Hagenbeek, Fiona A.; Hakulinen, Christian; Henders, Anjali K.; Hottenga, Jouke Jan; Korhonen, Tellervo; Mamun, Abdullah; Marrington, Shelby; Neumann, Alexander; Rimfeld, Kaili; Rivadeneira, Fernando; Silberg, Judy L.; van Beijsterveldt, Catharina E.; Vuoksimaa, Eero; Whipp, Alyce M.; Tong, Xiaoran; Andreassen, Ole; Boomsma, Dorret I.; Brown, Sandra A.; Burt, S. Alexandra; Copeland, William; Dick, Danielle M.; Harden, K. Paige; Harris, Kathleen Mullan; Hartman, Catharina A.; Heinrich, Joachim; Hewitt, John K.; Hopfer, Christian; Hypponen, Elina; Jarvelin, Marjo-Riitta; Kaprio, Jaakko; Keltikangas-Järvinen, Liisa; Klump, Kelly L.; Krauter, Kenneth; Kuja-Halkola, Ralf; Larsson, Henrik; Lehtimäki, Terho; Lichtenstein, Paul; Lundström, Sebastian; Maes, Hermine H.; Magnus, Per Minor; Munafò, Marcus R.; Najman, Jake M.; Njølstad, Pål Rasmus; Oldehinkel, Albertine J.; Pennell, Craig E.; Plomin, Robert; Reichborn-Kjennerud, Ted; Reynolds, Chandra; Rose, Richard J.; Smolen, Andrew; Snieder, Harold; Stallings, Michael; Standl, Marie; Sunyer, Jordi; Tiemeier, Henning; Wadsworth, Sally J.; Wall, Tamara L.; Whitehouse, Andrew J.O.; Williams, Gail M.; Ystrøm, Eivind; Nivard, Michel G.; Bartels, Meike; Middeldorp, Christel M. (Journal article; Peer reviewed, 2022)
      Objective: To investigate the genetic architecture of internalizing symptoms in childhood and adolescence. Method: In 22 cohorts, multiple univariate genome-wide association studies (GWASs) were performed using repeated ...

    • Labor epidural analgesia and subsequent risk of offspring autism spectrum disorder and attention-deficit/hyperactivity disorder: A cross-national cohort study of over 4.5 million individuals and their siblings in Finland, Norway, and Sweden 

      Hegvik, Tor-Arne; Klungsøyr, Kari; Kuja-Halkola, Ralf; Remes, Hanna; Haavik, Jan; D*Onofrio, Brian M.; Metsä-Simola, Niina; Engeland, Anders; Fazel, Seena; Lichtenstein, Paul; Martikainen, Pekka; Larsson, Henrik; Sariaslan, Amir (Journal article; Peer reviewed, 2023)
      Background A recent study has suggested that labor epidural analgesia may be associated with increased rates of offspring autism spectrum disorder. Subsequent replication attempts have lacked sufficient power to confidently ...

    • Limited Genetic Overlap Between Overt Hashimoto's Thyroiditis and Graves' Disease in Twins: A Population-based Study 

      Skov, Jakob; Calissendorff, Jan; Eriksson, Daniel; Magnusson, Patrik K.; Kämpe, Olle; Bensing, Sophie; Kuja-Halkola, Ralf (Journal article; Peer reviewed, 2021)
      Context Hashimoto’s thyroiditis (HT) and Graves’ disease (GD) are known to coaggregate in families, but the magnitude and nature of a shared etiology is unknown. Objectives To estimate the shared genetic influence on ...

    • Shared etiology of type 1 diabetes and Hashimoto’s thyroiditis: a population-based twin study 

      Skov, Jakob; Kuja-Halkola, Ralf; Magnusson, Patrik K.E.; Gudbjörnsdottir, Soffia; Kämpe, Olle; Bensing, Sophie (Journal article; Peer reviewed, 2022)
      Objective Type 1 diabetes and Hashimoto’s thyroiditis frequently cluster in individuals and in families, indicating shared origins. The objective of this study was to investigate familial co-aggregation of these diseases ...