Blar i Bergen Open Research Archive på forfatter "Ayorech, Ziada"

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    • 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 (Journal article; Peer reviewed, 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 ...

    • Early manifestations of genetic risk for neurodevelopmental disorders 

      Askeland, Ragna Bugge; Hannigan, Laurie J.; Ask, Helga; Ayorech, Ziada; Tesli, Martin Steen; Corfield, Elizabeth; Magnus, Per Minor; Njølstad, Pål Rasmus; Andreassen, Ole A.; Smith, George Davey; Reichborn-Kjennerud, Ted; Havdahl, Alexandra (Journal article; Peer reviewed, 2021)
      Background: Attention deficit/hyperactivity disorder (ADHD), autism spectrum disorder (autism) and schizophrenia are highly heritable neurodevelopmental disorders, affecting the lives of many individuals. It is important ...

    • On the importance of parenting in externalizing disorders: an evaluation of indirect genetic effects in families 

      Eilertsen, Espen Moen; Gillespie Cheesman, Rosa Catherine; Ayorech, Ziada; Røysamb, Espen; Pingault, Jean-Baptiste; Njølstad, Pål Rasmus; Andreassen, Ole; Havdahl, Alexandra Karoline Saasen; McAdams, Tom A.; Torvik, Fartein Ask; Ystrøm, Eivind (Journal article; Peer reviewed, 2022)
      Background: Theoretical models of the development of childhood externalizing disorders emphasize the role of parents. Empirical studies have not been able to identify specific aspects of parental behaviors explaining a ...