Blar i Bergen Open Research Archive på forfatter "Rypdal, Knut"
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Causal modelling of variation in clinical practice and long-term outcomes of ADHD using Norwegian registry data: The ADHD controversy project
Mykletun, Arnstein; Widding-Havneraas, Tarjei; Chaulagain, Ashmita; Lyhmann, Ingvild; Bjelland, Ingvar; Halmøy, Anne; Elwert, Felix; Butterworth, Peter; Markussen, Simen; Zachrisson, Henrik Daae; Rypdal, Knut (Journal article; Peer reviewed, 2021)Introduction Attention-deficit/hyperactivity disorder (ADHD) is among the most common mental disorders in children and adolescents, and it is a strong risk factor for several adverse psychosocial outcomes over the lifespan. ... -
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; Peer reviewed, 2023)ADHD is associated with an increased risk of injury. Causal evidence for effects of pharmacological treatment on injuries is scarce. We estimated effects of ADHD medication on injuries using variation in provider preference ... -
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; Peer reviewed, 2023)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 ... -
Long term outcomes and causal modelling of compulsory inpatient and outpatient mental health care using Norwegian registry data : protocol for a controversies in psychiatry research project
Hofstad, Tore; Nyttingnes, Olav; Markussen, Simen; Johnsen, Erik; Killackey, Eoin; McDaid, David; Rinaldi, Miles; Dean, Kimberlie; Brinchmann, Beate; Douglas, Kevin Stewart; Gröning, Linda; Bjørkly, Stål Kapstø; Palmstierna, Tom Krisman Kule; Strømme, Maria Fagerbakke; Blindheim, Anne Alnes; Rugkåsa, Jorun; Hofmann, Bjørn Morten; Pedersen, Reidar; Widding-Havnerås, Tarjei; Rypdal, Knut; Mykletun, Arnstein (Journal article; Peer reviewed, 2023)Objectives: Compulsory mental health care includes compulsory hospitalisation and outpatient commitment with medication treatment without consent. Uncertain evidence of the effects of compulsory care contributes to large ... -
Vitamin D supplementation during winter: Effects on stress resilience in a randomized control trial
Hansen, Anita Lill; Ambroziak, Gina; Thornton, David; Mundt, James C.; Kahn, Rachel E.; Dahl, Lisbeth; Waage, Leif; Kattenbraker, Daniel; Araujo, Pedro; Murison, Robert; Rypdal, Knut; Grung, Bjørn (Journal article; Peer reviewed, 2020)Vitamin D status may be important for stress resilience. This study investigated the effects of vitamin D supplements during winter on biological markers of stress resilience such as psychophysiological activity, serotonin, ...