Blar i forfatter "Widding-Havnerås, Tarjei"

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    • Effect of ADHD medication on risk of injuries: a preference-based instrumental variable analysis 

      Widding-Havnerås, Tarjei; Elwert, Felix; Markussen, Simen; Zachrisson, Henrik Daae; Lyhmann, Ingvild; Chaulagain, Ashmita; Bjelland, Ingvar; Halmøy, Anne; Rypdal, Knut; Mykletun, Arnstein (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-09-24)
      ADHD is associated with an increased risk of injury. Causal evidence for efects of pharmacological treatment on injuries is scarce. We estimated efects of ADHD medication on injuries using variation in provider preference as an instrumental variable (IV). Using Norwegian registry data, we followed 8051 patients who were diagnosed with ADHD aged 5 to 18 between 2009 and 2011 and recorded their ADHD ...

    • Effect of Pharmacological Treatment of Attention-Deficit/Hyperactivity Disorder on Criminality 

      Widding-Havnerås, Tarjei; Zachrisson, Henrik Daae; Markussen, Simen; Elwert, Felix; Lyhmann, Ingvild; Chaulagain, Ashmita; Bjelland, Ingvar; Halmøy, Anne; Rypdal, Knut; Mykletun, Arnstein (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-06-27)
      Objective: Criminality rates are higher among persons with attention-deficit/hyperactivity disorder (ADHD), and evidence that medication reduces crime is limited. Medication rates between clinics vary widely even within universal health care systems, partly because of providers’ treatment preferences. We used this variation to estimate causal effects of pharmacological treatment of ADHD on 4-year ...

    • A systematic meta-review of systematic reviews on attention deficit hyperactivity disorder 

      Chaulagain, Ashmita; Lyhmann, Ingvild; Halmøy, Anne; Widding-Havnerås, Tarjei; Nyttingnes, Olav; Bjelland, Ingvar; Mykletun, Arnstein (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-11-17)
      Background. There are now hundreds of systematic reviews on attention deficit hyperactivity disorder (ADHD) of variable quality. To help navigate this literature, we have reviewed systematic reviews on any topic on ADHD.<p> <p>Methods. We searched MEDLINE, PubMed, PsycINFO, Cochrane Library, and Web of Science and performed quality assessment according to the Joanna Briggs Institute Manual for ...

    • Variation in attitudes toward diagnosis and medication of ADHD: a survey among clinicians in the Norwegian child and adolescent mental health services 

      Lyhmann, Ingvild; Widding-Havnerås, Tarjei; Zachrisson, Henrik Daae; Bjelland, Ingvar; Chaulagain, Ashmita; Mykletun, Arnstein; Halmøy, Anne (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-11-19)
      Prevalence and medication rates of ADHD vary geographically, both between and within countries. No absolute cutof exists between ADHD and normal behavior, making clinician attitudes (leading to local practice cultures) a potential explanation for the observed variation in diagnosis and medication rates. The objective of this study was to describe variation in attitudes toward diagnosis and medication ...