• Alcohol consumption and lower risk of cardiovascular and all-cause mortality: the impact of accounting for familial factors in twins 

      Ystrøm, Eivind; Degerud, Eirik Magnus Meek; Tesli, Martin Steen; Høye, Anne; Reichborn-Kjennerud, Ted; Næss, Øyvind Erik (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-04-20)
      Background. A moderate to high alcohol consumption is associated with a lower risk of cardiovascular disease (CVD) mortality in comparison with low consumption. The mechanisms underlying this association are not clear and have been suggested to be caused by residual confounding. The main objective of this study was to separate the familial and individual risk for CVD mortality and all-cause mortality ...
    • Diagnostic tests and treatment procedures performed prior to cardiovascular death in individuals with severe mental illness 

      Heiberg, Ina Heidi; Nesvåg, Ragnar; Balteskard, Lise; Bramness, Jørgen Gustav; Hultman, Christina M.; Næss, Øyvind; Reichborn-Kjennerud, Ted; Ystrøm, Eivind; Jacobsen, Bjarne K.; Høye, Anne (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-02-29)
      <p><i>Objective - </i>To examine whether severe mental illnesses (i.e., schizophrenia or bipolar disorder) affected diagnostic testing and treatment for cardiovascular diseases in primary and specialized health care. <p><i>Methods - </i>We performed a nationwide study of 72 385 individuals who died from cardiovascular disease, of whom 1487 had been diagnosed with severe mental illnesses. Log‐binomial ...
    • 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; Tidsskriftartikkel; Peer reviewed, 2022-02-13)
      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 all-cause and CVD mortality. However, it is unknown to what extent low educational attainment can explain the increased mortality in individuals with schizophrenia.<p> <p>Aim: Here, ...
    • Educational attainment and mortality in schizophrenia 

      Tesli, Martin Steen; Degerud, Erik; Plana-Ripoll, Oleguer; Gustavsson, Kristin; Torvik, Fartein Ask; Ystrøm, Eivind; Ask, Helga; Tesli, Natalia; Stoltenberg, Camilla; Reichborn-Kjennerud, Ted; Nesvåg, Ragnar; Næss, Øyvind Erik (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-02-13)
      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 all-cause and CVD mortality. However, it is unknown to what extent low educational attainment can explain the increased mortality in individuals with schizophrenia. Aim: Here, we ...
    • Explaining the association between anxiety disorders and alcohol use disorder: A twin study 

      Torvik, Fartein Ask; Rosenström, Tom Henrik; Gustavson, Kristin; Ystrøm, Eivind; Kendler, Kenneth S.; Bramness, Jørgen Gustav; Czajkowski, Nikolai Olavi; Reichborn-Kjennerud, Ted (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-03-05)
      <p><i>Background - </i>It is unknown whether social anxiety disorder (SAD) has a unique association with alcohol use disorder (AUD) over and beyond that of other anxiety disorders, how the associations develop over time, and whether the associations are likely to be causal. <p><i>Methods - </i>Diagnoses of AUD, SAD, generalized anxiety disorder, panic disorder, agoraphobia, and specific phobias ...
    • Geographical variation in ADHD: do diagnoses refect symptom levels? 

      Widding-Havneraas, Tarjei; Markussen, Simen; Elwert, Felix; Lyhmann, Ingvild; Bjelland, Ingvar; Halmøy, Anne; Chaulagain, Ashmita; Ystrøm, Eivind; Mykletun, Arnstein; Zachrisson, Henrik Daae (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-05-18)
      Rates of ADHD diagnosis vary across regions in many countries. However, no prior study has investigated how much within-country geographic variation in ADHD diagnoses is explained by variation in ADHD symptom levels. We examine whether ADHD symptom levels explain variation in ADHD diagnoses among children and adolescents using nationwide survey and register data in Norway. Geographical variation in ...
    • Total and cause-specific standardized mortality ratios in patients with schizophrenia and/or substance use disorder 

      Heiberg, Ina Heidi; Jacobsen, Bjarne K.; Nesvåg, Ragnar; Bramness, Jørgen Gustav; Reichborn-Kjennerud, Ted; Næss, Øyvind; Ystrøm, Eivind; Hultman, Christina M; Høye, Anne (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-08-23)
      Individuals with schizophrenia or substance use disorder have a substantially increased mortality compared to the general population. Despite a high and probably increasing prevalence of comorbid substance use disorder in people with schizophrenia, the mortality in the comorbid group has been less studied and with contrasting results. We performed a nationwide open cohort study from 2009 to 2015, ...
    • Undiagnosed cardiovascular disease prior to cardiovascular death in individuals with severe mental illness 

      Heiberg, Ina Heidi; Jacobsen, Bjarne K.; Balteskard, Lise; Bramness, Jørgen Gustav; Næss, Øyvind; Ystrøm, Eivind; Reichborn-Kjennerud, Ted; Hultman, Christina M.; Nesvåg, Ragnar; Høye, Anne (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-03-07)
      <p><i>Objective - </i>To examine whether individuals with schizophrenia (SCZ) or bipolar disorder (BD) had equal likelihood of not being diagnosed with cardiovascular disease (CVD) prior to cardiovascular death, compared to individuals without SCZ or BD. <p><i>Methods - </i>Multivariate logistic regression analysis including nationwide data of 72 451 cardiovascular deaths in the years 2011–2016. ...