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

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    • 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 ...
    • 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 ...
    • 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 ...
    • 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 ...
    • 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 ...
    • Parental relationships following the loss of a child 

      Dyregrov, Atle; Gjestad, Rolf; Dyregrov, Kari (Peer reviewed; Journal article, 2020)
      To enhance understanding of parental relationships following the loss of a child, a questionnaire was sent to members of Norwegian bereavement support organizations. The sample consisted of 175 couples. Using the Dyadic ...
    • Personality traits predict job stress, depression and anxiety among junior physicians 

      Gramstad, Thomas Olsen; Gjestad, Rolf; Haver, Brit (Peer reviewed; Journal article, 2013-11-09)
      Background: High levels of stress and deteriorating mental health among medical students are commonly reported. In Bergen, Norway, we explored the impact of personality traits measured early in their curriculum on stress ...
    • Psychosocial characteristics differentiate non-distressing and distressing voices in 10,346 adolescents 

      Løberg, Else-Marie; Gjestad, Rolf; Posserud, Maj-Britt Rocio; Kompus, Kristiina; Lundervold, Astri (Peer reviewed; Journal article, 2019)
      Adolescents hearing non-existent voices may be at risk for psychosis, but the prevalence of voice-hearing (VH) in the general population complicates clinical interpretations. Differentiating between VH with and without ...
    • Relationships between depressive symptoms and panic disorder symptoms during guided internet-delivered cognitive behavior therapy for panic disorder 

      Walderhaug, Eirik Paulsen; Gjestad, Rolf; Egeland, Jens; Havik, Odd E.; Nordgreen, Tine (Peer reviewed; Journal article, 2019)
      Aims: The current study explore the relationship between the trajectories of primary panic disorder symptoms and secondary depressive symptoms during guided internet-delivered cognitive behaviour therapy for panic disorder. ...
    • The serum level of C-reactive protein (CRP) is associated with cognitive performance in acute phase psychosis 

      Johnsen, Erik; Fathian, Farivar; Kroken, Rune A; Steen, Vidar M; Jørgensen, Hugo A; Gjestad, Rolf; Løberg, Else-Marie (Peer reviewed; Journal article, 2016-03-14)
      Background Inflammatory processes have been implicated in the etiology of schizophrenia and related psychoses, in which cognitive deficits represent core symptoms. The aim of the present study was to investigate possible ...
    • Substance use and symptoms of mental health disorders: a prospective cohort of patients with severe substance use disorders in Norway 

      Aas, Christer Frode; Vold, Jørn Henrik; Gjestad, Rolf; Skurtveit, Svetlana; Lim, Aaron G.; Gjerde, Kristian Varden; Løberg, Else-Marie; Johansson, Kjell Arne; Fadnes, Lars T. (Journal article; Peer reviewed, 2021-02-27)
      Background:There is high co-occurrence of substance use disorders (SUD) and mental health disorders. We aimedto assess impact of substance use patterns and sociodemographic factors on mental health distress using the ...
    • Subtyping social anxiety in youth 

      Kodal, Arne; Bjelland, Ingvar; Gjestad, Rolf; Wergeland, Gro Janne; Havik, Odd E.; Heiervang, Einar; Fjermestad, Krister (Peer reviewed; Journal article, 2017-06)
      Few empirical studies have examined subtypes of social anxiety disorder (SAD) in youth, and limited consensus resides on the nature of potential subtypes. Identifying subtypes, based on both fear and avoidance patterns, ...

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