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Blar i Bergen Open Research Archive på forfatter "Gjestad, Rolf"

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    • Adherence, Competence, and Alliance as Predictors of Long-term Outcomes of Cognitive Behavioral Therapy for Youth Anxiety Disorders 

      Bjaastad, Jon Fauskanger; Gjestad, Rolf; Fjermestad, Krister Westlye; Öst, Lars Gøran; Haugland, Bente Storm Mowatt; Kodal, Arne; Heiervang, Einar Røshol; Wergeland, Gro Janne Henningsen (Journal article; Peer reviewed, 2023)
      The present study investigated therapist adherence, therapist competence, and patient-therapist alliance as predictors of long-term outcomes of cognitive behavioral therapy (CBT) for anxiety disorders in youth. Potential ...
    • Antidepressive Effectiveness of Amisulpride, Aripiprazole, and Olanzapine in Patients with Schizophrenia Spectrum Disorders: A Secondary Outcome Analysis of a Pragmatic, Randomized Trial (BeSt InTro) 

      Kjelby, Eirik; Gjestad, Rolf; Fathian, Farivar; Sinkeviciute, Igne; Alisauskiene, Renata; Anda, Liss; Løberg, Else-Marie; Reitan, Solveig Klæbo; Joa, Inge; Larsen, Tor Kjetil; Rettenbacher, Maria; Berle, Jan Øystein; Fasmer, Ole Bernt; Kroken, Rune Andreas; Johnsen, Erik (Journal article; Peer reviewed, 2023)
      Background Depressive symptoms are frequent in schizophrenia and associated with a poorer outcome. Currently, the optimal treatment for depressive symptoms in schizophrenia remains undetermined. Amisulpride, aripiprazole, ...
    • The application of a social cognition model in explaining fruit intake in Austrian, Norwegian and Spanish schoolchildren using structural equation modelling 

      Sandvik, Camilla; Gjestad, Rolf; Brug, Johannes; Rasmussen, Mette; Wind, Marianne; Wolf, Alexandra; Pérez-Rodrigo, Carmen; De Bourdeaudhuij, Ilse; Samdal, Oddrun; Klepp, Knut-Inge (Peer reviewed; Journal article, 2007-11-14)
      Background: The aim of this paper was to test the goodness of fit of the Attitude – Social influence – self-Efficacy (ASE) model in explaining schoolchildren's intentions to eat fruit and their actual fruit intake in ...
    • Association between C-reactive protein levels and antipsychotic treatment during 12 months follow-up period after acute psychosis 

      Fathian, Farivar; Gjestad, Rolf; Kroken, Rune Andreas; Løberg, Else-Marie; Reitan, Solveig Merete Klæbo; Fleichhacker, W. Wolfgang; Rettenbacher, Maria; Larsen, Tor Ketil; Joa, Inge; Stabell, Lena Antonsen; Kjelby, Eirik; Sinkevicute, Igne; Alisauskiene, Renata; Steen, Vidar Martin; Johnsen, Erik (Journal article; Peer reviewed, 2022)
      Background A potential role of inflammatory pathways in the pathology of schizophrenia has been suggested for at least a subgroup of patients. Elevated levels of the inflammatory marker C-reactive protein (CRP) have been ...
    • Cognitive changes in patients with acute phase psychosis - Effects of illicit drug use 

      Helle, Siri; Gjestad, Rolf; Johnsen, Erik; Kroken, Rune; Jørgensen, Hugo A.; Løberg, Else-Marie (Peer reviewed; Journal article, 2014-12)
      Illicit drug use may influence cognition in non-affective psychosis. Previous studies have shown better cognition in psychosis with illicit drug use as compared to psychosis only. Possibly, illicit drug using patients have ...
    • Comparative effectiveness of microdecompression alone vs decompression plus instrumented fusion in lumbar degenerative spondylolisthesis 

      Austevoll, Ivar Magne; Gjestad, Rolf; Solberg, Tore; Storheim, Kjersti; Brox, Jens Ivar; Hermansen, Erland; Rekeland, Frode; Indrekvam, Kari; Hellum, Christian (Journal article; Peer reviewed, 2020)
      Importance Conflicting evidence and large practice variation are present in the surgical treatment of degenerative spondylolisthesis. More than 90% of surgical procedures in the United States include instrumented fusion ...
    • Cyclothymic temperament: Associations with ADHD, other psychopathology, and medical morbidity in the general population 

      Syrstad, Vigdis Elin Giæver; Ødegaard, Ketil Joachim; Fasmer, Ole Bernt; Halmøy, Anne; Haavik, Jan; Dilsaver, Stephen C.; Gjestad, Rolf (Peer reviewed; Journal article, 2020)
      Background: Cyclothymic temperament (CT) is an affective disposition often preceding bipolar disorder (BD), and is the most common affective temperament in patients with BD. In depressed patients, CT is a predictor for ...
    • Depression trajectories and cytokines in schizophrenia spectrum disorders - A longitudinal observational study 

      Hoprekstad, Gunnhild Eldhuset; Kjelby, Eirik; Gjestad, Rolf; Fathian, Farivar; Larsen, Tor Ketil; Reitan, Solveig Klæbo; Rettenbacher, Maria; Torsvik, Anja; Skrede, Silje; Johnsen, Erik; Kroken, Rune Andreas (Journal article; Peer reviewed, 2023)
      Depression occurs frequently in all phases of schizophrenia spectrum disorders. Altered activity in the immune system is seen in both depression and schizophrenia. We aimed to uncover depressive trajectories in a sample ...
    • Dialectical behavioral therapy-based group treatment versus treatment as usual for adults with attention-deficit hyperactivity disorder: a multicenter randomized controlled trial 

      Halmøy, Anne; Ring, Anna Edit; Gjestad, Rolf; Møller, Merete; Ubostad, Bente; Lien, Tage; Munkhaugen, Ellen Kathrine; Fredriksen, Mats (Journal article; Peer reviewed, 2022)
      Background Studies on structured skills training groups have indicated beneficial, although still inconclusive, effects on core symptoms of ADHD in adults. This trial examined effects of Dialectical Behavioral Therapy-based ...
    • Different Trajectories of Prolonged Grief in Bereaved Family Members After Terror 

      Kristensen, Pål; Dyregrov, Kari; Gjestad, Rolf (Journal article; Peer reviewed, 2020-10-14)
      Introduction: The loss of a loved one in a terror incident is associated with elevated risk for mental health disorders such as prolonged grief disorder (PGD) and posttraumatic stress disorder (PTSD), but the long- term ...
    • Disentangling Within- and Between-Person Effects During Response Inhibition in Obsessive-Compulsive Disorder 

      Hagland, Pernille; Thorsen, Anders Lillevik; Ousdal, Olga Therese; Gjestad, Rolf; de Wit, Stella J.; Hansen, Bjarne Kristian Aaslie; Hagen, Kristen; Kvale, Gerd; van den Heuvel, Odile A. (Journal article; Peer reviewed, 2021)
      Background: Obsessive-compulsive disorder (OCD) has been related to worse performance, abnormal brain activity, and functional connectivity during response inhibition. Whether these findings are indications of stable traits ...
    • Does childhood trauma influence cognitive functioning in schizophrenia? The association of childhood trauma and cognition in schizophrenia spectrum disorders. 

      Mørkved, Nina; Johnsen, Erik; Kroken, Rune Andreas; Gjestad, Rolf; Winje, Dagfinn; Thimm, J.; Fathian, Farivar; Rettenbacher, Maria; Anda-Ågotnes, Liss Gøril; Løberg, Else-Marie (Journal article; Peer reviewed, 2020)
      Childhood trauma (CT) is a risk factor for schizophrenia spectrum disorders (SSDs), and cognitive impairment is a core feature and a vulnerability marker of SSDs. Studies of the relationship between CT and cognitive ...
    • The Effect of SMS Reminders on Adherence in a Self-Guided Internet-Delivered Intervention for Adults With ADHD 

      Nordby, Emilie Sektnan; Gjestad, Rolf; Kenter, Robin Maria Francisca; Guribye, Frode; Mukhiya, Suresh Kumar; Lundervold, Astri J.; Nordgreen, Tine (Journal article; Peer reviewed, 2022)
      Background: Self-guided Internet-delivered interventions may serve as an accessible and flexible non-pharmacological treatment supplement for adults with ADHD. However, these interventions are challenged by low ...
    • Elderly Patients With No Previous Psychiatric History: Suicidality and Other Factors Relating to Psychiatric Acute Admissions 

      Lund-Heimark, Hallvard; Kjelby, Eirik; Mehlum, Lars; Gjestad, Rolf; Selbæk, Geir; Kroken, Rune Andreas; Johnsen, Erik; Ødegaard, Ketil Joachim; Mellesdal, Liv Solrunn (Journal article; Peer reviewed, 2020)
      Background: The common recommendation that adults with onset of mental illness after the age of 65 should receive specialised psychogeriatric treatment is based on limited evidence. Aims: To compare factors related to ...
    • Folate Status as a Nutritional Indicator among People with Substance Use Disorder; A Prospective Cohort Study in Norway 

      Mitra, Bemanian; Vold, Jørn Henrik; Chowdhury, Ranadip; Aas, Christer Frode; Gjestad, Rolf; Johansson, Kjell Arne; Fadnes, Lars T. (Journal article; Peer reviewed, 2022)
      Substance use disorder (SUD) is associated with poor nutrition. Vitamin B9, or folate, is an important micronutrient for health. The aim of this prospective longitudinal cohort study was to assess serum folate levels among ...
    • Follow-up score, change score or percentage change score for determining clinical important outcome following surgery? An observational study from the Norwegian registry for Spine surgery evaluating patient reported outcome measures in lumbar spinal stenosis and lumbar degenerative spondylolisthesis 

      Austevoll, Ivar Magne; Gjestad, Rolf; Grotle, Margreth; Solberg, Tore; Brox, Jens Ivar; Hermansen, Erland; Rekeland, Frode; Indrekvam, Kari; Storheim, Kjersti; Hellum, Christian (Peer reviewed; Journal article, 2019-01-18)
      Background: Assessment of outcomes for spinal surgeries is challenging, and an ideal measurement that reflects all aspects of importance for the patients does not exist. Oswestry Disability Index (ODI), EuroQol (EQ-5D) and ...
    • Gender specific early treatment for women with alcohol addiction (EWA): Impact on work related outcomes. A 25-year registry follow-up of a randomized controlled trial (RCT) 

      Berge, Line Iden; Gjestad, Rolf; Franck, Johan Petter; Javaras, Kristin Nicole; Greenfield, Shelly; Haver, Brit (Journal article; Peer reviewed, 2022)
      Background: Alcohol contributes to substantial economic burden, at both individual and community levels. We investigated the effect of the Early treatment for Women with Alcohol Addiction (EWA) treatment program on sickness ...
    • How can we improve specialist health services for children with multi-referrals? Parent reported experience 

      Lygre, Ragnhild; Thuen, Viktoria Mellingen; Gjestad, Rolf; Norekvål, Tone M.; Greve, Gottfried; Mildestvedt, Thomas; Elgen, Irene Bircow (Journal article; Peer reviewed, 2020)
      Background Children with combined mental and somatic conditions pose a challenge to specialized health services. These cases are often characterized by multi-referrals, frequent use of health services, poor clinical and ...
    • Impact of clinical and sociodemographic factors on fatigue among patients with substance use disorder: a cohort study from Norway for the period 2016–2020 

      Vold, Jørn Henrik; Gjestad, Rolf; Aas, Christer Frode; Chalabianloo, Fatemeh; Skurtveit, Svetlana; Løberg, Else-Marie; Johansson, Kjell Arne; Fadnes, Lars T. (Journal article; Peer reviewed, 2020)
      Background The impact of clinical and sociodemographic factors on fatigue remains unknown among patients with substance use disorders (SUD). This study aims to evaluate fatigue among patients with SUD using a nine-item ...
    • Long-term effectiveness of cognitive behavioral therapy for youth with anxiety disorders 

      Kodal, Arne; Fjermestad, Krister; Bjelland, Ingvar; Gjestad, Rolf; Øst, Lars Gøran; Bjåstad, Jon Fauskanger; Haugland, Bente Storm Mowatt; Havik, Odd E.; Heiervang, Einar; Wergeland, Gro Janne (Peer reviewed; Journal article, 2018-01)
      Cognitive behavioral therapy (CBT) has demonstrated favorable long-term outcomes in youth with anxiety disorders in efficacy trials. However, long-term outcomes of CBT delivered in a community setting are uncertain. This ...

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