• Association between leptin levels and severity of suicidal behaviour in schizophrenia spectrum disorders 

      Gohar, Sherif Mostafa Mohamed Ahmed; Dieset, Ingrid; Steen, Nils Eiel; Mørch, Ragni Helene; Vedal, Trude Seselie Jahr; Reponen, Elina Johanna; Steen, Vidar Martin; Andreassen, Ole Andreas; Melle, Ingrid (Peer reviewed; Journal article, 2019-03-08)
      Objective: Associations between suicidality and lipid dysregulation are documented in mental illness, but the potential role of leptin remains unclear. We examined the association between leptin and suicidal behaviour in ...
    • Educational attainment and mortality in schizophrenia 

      Tesli, Martin Steen; Degerud, Eirik Magnus Meek; Plana-Ripoll, Oleguer; Gustavson, Kristin; Torvik, Fartein Ask; Ystrøm, Eivind; Ask, Helga; Tesli, Natalia; Høye, Anne; Stoltenberg, Camilla; Reichborn-Kjennerud, Ted; Næss, Øyvind Erik; Nesvåg, Ragnar (Journal article; Peer reviewed, 2022)
      Background Individuals suffering from schizophrenia have a reduced life expectancy with cardiovascular disease (CVD) as a major contributor. Low educational attainment is associated with schizophrenia, as well as with ...
    • Gender Differences in Psychiatric Comorbidity: Population-based study of 40,000 Adults with Attention-Deficit Hyperactivity Disorder 

      Solberg, Berit Skretting; Halmøy, Anne; Engeland, Anders; Igland, Jannicke; Haavik, Jan; Klungsøyr, Kari (Peer reviewed; Journal article, 2017-12-21)
      OBJECTIVE: We aimed at determining whether gender modified associations between ADHD and psychiatric comorbidities in adults. METHOD: We identified adults with ADHD by linking Norwegian national registries and compared ...
    • Male to female ratios in autism spectrum disorders by age, intellectual disability and attention-deficit/hyperactivity disorder 

      Posserud, Maj-Britt; Skretting Solberg, Berit; Engeland, Anders; Haavik, Jan; Klungsøyr, Kari (Journal article; Peer reviewed, 2021)
      Objective To examine the gender distribution in ASD in adults compared with children and the impact of comorbid intellectual disability (ID) and attention-deficit/hyperactivity disorder (ADHD) on the male to female ratio ...
    • Prevalence and clinical correlates of insomnia in adults with attention-deficit hyperactivity disorder 

      Brevik, Erlend Joramo; Lundervold, Astri; Halmøy, Anne; Posserud, Maj-Britt Rocio; Instanes, Johanne Telnes; Bjorvatn, Bjørn; Haavik, Jan (Peer reviewed; Journal article, 2017-08)
      Objective: To investigate the prevalence of insomnia in adults with Attention-deficit hyperactivity disorder (ADHD) and its association with clinical subtypes, current ADHD symptoms, and stimulant treatment. Method: We ...