• The antidepressant effect of intermittent theta burst stimulation (iTBS): study protocol for a randomized double-blind sham-controlled trial 

      Ørbo, Marte Christine; Grønli, Ole Kristian; Larsen, Camilla; Vangberg, Torgil Riise; Friborg, Oddgeir; Turi, Zsolt; Mittner, Matthias Bodo; Csifcsak, Gabor; Aslaksen, Per M (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-10-02)
      Background Intermittent theta burst stimulation (iTBS) when applied over the left dorsolateral prefrontal cortex (DLPFC) has been shown to be equally effective and safe to treat depression compared to traditional repetitive transcranial magnetic stimulation (rTMS) paradigms. This protocol describes a funded single-centre, double-blind, randomized placebo-controlled, clinical trial to investigate ...
    • Attitudes of mental health providers towards adoption of evidence-based interventions: relationship to work-place, staff roles and social and psychological factors at work 

      Rye, Marte; Friborg, Oddgeir; Skre, Ingunn (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-01-08)
      <p><i>Background - </i>Gaining insight into factors influencing the adoption of evidence-based interventions (EBI) is essential to ensuring their sustainability in the mental healthcare setting. This article describes 1) differences between professional staff roles in attitudes towards EBI and 2) individual and organizational predictors of attitudes towards adopting EBI. <p><i>Methods - </i>The ...
    • Body composition and physical fitness in women with bulimia nervosa or binge-eating disorder. 

      Mathisen, Therese Fostervold; Rosenvinge, Jan H; Friborg, Oddgeir; Pettersen, Gunn; Stensrud, Trine; Hansen, Bjørge Hermann; Underhaug, Karoline; Teinung, Elisabeth; Vrabel, KariAnne; Svendsen, Mette; Bratland-Sanda, Solfrid; Sundgot-Borgen, Jorunn (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-02-23)
      <p><i>Objective</i>: Knowledge about physical fitness in women with bulimia nervosa (BN) or binge‐eating disorder (BED) is sparse. Previous studies have measured physical activity largely through self‐report, and physical fitness variables are mainly restricted to body mass index (BMI) and bone mineral density. We expanded the current knowledge in these groups by including a wider range of physical ...
    • Comorbidity of personality disorders in anxiety disorders : a meta-analysis of 30 years of research 

      Friborg, Oddgeir; Martinussen, Monica; Kaiser, Sabine; Øvergård, Karl-Tore; Rosenvinge, Jan H (Journal article; Tidsskriftartikkel; Peer reviewed, 2012)
      Background. A comprehensive meta-analysis to identify the proportions of comorbid personality disorders (PD) across the major subtypes of anxiety disorders (AD) has not previously been published. Methods. A literature search identified 125 empirical papers from the period 1980-2010 on patients with panic disorders, social phobia, generalised anxiety, obsessive-compulsive (OCD) and post-traumatic ...
    • The cross-cultural validity of the Resilience Scale for Adults: A comparison between Norway and Brazil 

      Hjemdal, Odin; Roazzi, A.; Dias, M G; Friborg, Oddgeir (Journal article; Tidsskriftartikkel; Peer reviewed, 2015-06-18)
      Background: The resilience construct is of increasing interest in clinical and health psychology. The Resilience Scale for Adults (RSA) is a measure of protective factors. The evidence supporting its construct validity is good, however evidence of cross-cultural validity is modest. The present study explored the factorial invariance of the RSA across a Brazilian and a Norwegian sample, as well as ...
    • Daily associations between sleep and pain in patients with chronic musculoskeletal pain 

      Abeler, Karin; Bergvik, Svein; Sand, Trond; Friborg, Oddgeir (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-02-02)
      Patients with chronic pain commonly report sleep problems, and the evidence for a relationship between sleep disturbance and pain seems robust. The day‐to‐day associations between these constructs are less well studied, particularly with objective sleep measures such as actigraphy. Moreover, the concurrent presence of negative affective symptoms, as well as seasonality effects at extreme latitudes ...
    • Demographic and psychological predictors of Grade Point Average (GPA) in North-Norway: A particular analysis of cognitive/school-related and literacy problems 

      Sæle, Rannveig Grøm; Sørlie, Tore; Nergård-Nilssen, Trude; Ottosen, Karl-Ottar; Goll, Charlotte Bjørnskov; Friborg, Oddgeir (Journal article; Tidsskriftartikkel; Peer reviewed, 2015)
      Approximately 30 % of students drop out from Norwegian upper secondary schools. Academic achievement, as indexed by Grade Point Average (GPA) is one of the strongest predictors of dropout. The present study aimed to examine the role of cognitive, school-related and affective/psychological predictors of GPA. In addition, we examined the psychometric properties of a new scale for literacy problems ...
    • Do Childhood Boarding School Experiences Predict Health, Well-Being and Disability Pension in Adults? A SAMINOR Study 

      Friborg, Oddgeir; Sørlie, Tore; Schei, Berit; Javo, Cecilie; Sørbye, Øystein; Hansen, Ketil Lenert (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-11-01)
      Indigenous Sámi and Kven minority children in Norway were during the 20th century placed at boarding schools to hasten their adoption of the Norwegian majority language and culture. This is the first population-based study examining health, well-being and disability pension rates among these children. Data stem from two epidemiological studies conducted in 2003/04 (SAMINOR 1) and 2012 (SAMINOR 2) ...
    • Does personality moderate the effects on mindfulness training for medical and psychology students? 

      de Vibe, Michael; Solhaug, Ida; Tyssen, Reidar; Friborg, Oddgeir; Rosenvinge, Jan H; Sørlie, Tore; Halland, Even; Bjørndal, Arild (Journal article; Tidsskriftartikkel; Peer reviewed, 2013)
      The majority of mindfulness research to date has reported only on the group-level effects of interventions. Therefore, there is a need to better understand who is most likely to benefit from mindfulness interventions. This study reports on moderation analyses from a two-centre randomised controlled trial of mindfulness-based stress reduction (MBSR) among 288 medical and psychology students. ...
    • Does the Healthy Body Image program improve lifestyle habits among high-schoolstudents? A radndomised controlled trial With 12-month follow-up 

      Borgen, Christine Sundgot; Friborg, Oddgeir; Kolle, Elin; Torstveit, Monica Klungland; Sundgot-Borgen, Jorunn; Engen, Kethe Marie Elgesem; Rosenvinge, Jan H; Pettersen, Gunn; Bratland-Sanda, Solfrid (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-12-05)
      <i>Objectives</i> - Positive embodiment and healthy lifestyle habits seem to be related; therefore, stimulating positive embodiment should promote healthy lifestyle habits. In the current study, we delivered the Healthy Body Image (HBI) intervention among Norwegian high school students and examined the effects on healthy lifestyle habits.<p> <p><i>Methods</i> - The HBI intervention comprises three ...
    • Effect of A Healthy Body Image intervention on risk- and protective factors for eating disorders: A cluster randomized controlled trial 

      Svantorp-Tveiten, Kethe Marie Engen; Torstveit, Monica Klungland; Rosenvinge, Jan H; Sundgot-Borgen, Christine; Friborg, Oddgeir; Bratland-Sanda, Solfrid; Pettersen, Gunn; Sundgot-Borgen, Jorunn (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-10-28)
      Objective - To investigate the immediate and 12-months effects of a school-based intervention aiming to reduce risk and enhance protective factors for eating disorder development in high school boys and girls.<p> <p>Method - In total, 4,149 adolescents from 30 high schools were eligible for inclusion and 2,446 consented to participate and were randomly allocated to the Healthy Body Image (HBI) ...
    • The Effect of Cognitive–Behavioral Therapy as an Antidepressive Treatment Is Falling: Reply to Ljòtsson et al. (2017) and Cristea et al. (2017) 

      Friborg, Oddgeir; Johnsen, Tom Johan (Journal article; Tidsskriftartikkel; Peer reviewed, 2017-03)
      This article critically reassesses the nonlinear reanalysis by Ljótsson, Hedman, Mattsson, and Andersson (2017) and reviews Cristea et al.’s (2017) extension of our original meta-analysis (Johnsen & Friborg, 2015) reporting a decline in the effects of cognitive–behavioral therapy (CBT) for treating unipolar depression. Ljótsson et al. fitted a piecewise meta-regression model to the data, indicating ...
    • Effectiveness of a Cognitive Behavioral Therapy for Dysfunctional Eating among Patients Admitted for Bariatric Surgery: A Randomized Controlled Trial 

      Gade, Hege; Hjelmesæth, Jøran; Rosenvinge, Jan H; Friborg, Oddgeir (Journal article; Tidsskriftartikkel; Peer reviewed, 2014)
    • Effects of cognitive behavior therapy on eating behaviors, affective symptoms, and weight loss after bariatric surgery: a randomized clinical trial 

      Hjelmesæth, Jøran; Rosenvinge, Jan H; Gade, Hege; Friborg, Oddgeir (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-08-15)
      <p><i>Background</i>: The long-term effects of presurgical psychological interventions on weight loss, eating behaviors, affective symptoms, and health-related quality of life remain uncertain. This study aimed to assess the 4-year effects of cognitive behavioral therapy (CBT) before bariatric surgery on these outcomes.</p> <p><i>Methods</i>: Single-center randomized controlled parallel-group ...
    • Epidemiology of comorbid hazardous alcohol use and insomnia in 19 185 women and men attending the population-based Tromsø Study 2015–2016 

      Husberg, Vendela; Hopstock, Laila Arnesdatter; Friborg, Oddgeir; Rosenvinge, Jan H; Bergvik, Svein; Rognmo, Kamilla (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-04-27)
      Background - Hazardous alcohol use is known to be comorbid with insomnia problems. The present study examined the prevalence of insomnia and if the odds of insomnia differed between women and men with a hazardous alcohol use.<p> <p>Methods - Cross-sectional data from the seventh survey of the Norwegian population-based Tromsø Study 2015–2016 (participation 65%). The sample included 19 185 women ...
    • The Evidence-based Practice Attitude Scale- 36 (EBPAS-36): a brief and pragmatic measure of attitudes to evidence-based practice validated in US and Norwegian samples 

      Rye, Marte; Torres, E.M; Friborg, Oddgeir; Aarons, Gregory A. (Journal article; Tidsskriftartikkel; Peer reviewed, 2017)
      Background: Short and valid instruments for measuring factors facilitating or hindering implementation efforts are called for. This article describes (1) the adaptation of a shorter version of the Evidence-based Practice Attitude Scale (EBPAS-50 items), and (2) the psychometric properties of the shortened version in both US and Norwegian data. <p> Methods: The US participants were mental health ...
    • The factor structure and psychometric properties of the Clinical Outcomes in Routine Evaluation – Outcome Measure (CORE-OM) in Norwegian clinical and non-clinical samples 

      Skre, Ingunn; Friborg, Oddgeir; Elgarøy, Sigmund; Evans, Chris; Myklebust, Lars Henrik Ryther; Lillevoll, Kjersti; Sørgaard, Knut; Hansen, Vidje (Journal article; Tidsskriftartikkel; Peer reviewed, 2013)
      Background The Clinical Outcomes in Routine Evaluation - Outcome Measure (CORE-OM) is a 34-item instrument developed to monitor clinically significant change in out-patients. The CORE-OM covers four domains: well-being, problems/symptoms, functioning and risk, and sums up in two total scores: the mean of All items, and the mean of All non-risk items. The aim of this study was to examine the ...
    • Gender differences in the bidirectional relationship between alcohol consumption and sleeplessness: the Tromsø study 

      Rognmo, Kamilla; Bergvik, Svein; Rosenvinge, Jan H; Bratlid, Katja Lovise; Friborg, Oddgeir (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-04-29)
      <i>Background</i> - The degree to which the relationship between alcohol use and sleeplessness is unidirectional or reciprocal is unclear due to great variation among the results of previous studies. The aim of the present study was to investigate if the relationship between alcohol use and sleeplessness is bidirectional by exploring how the change in and stability of alcohol use were related to ...
    • The healthy body image (HBI) intervention: Effects of a school-based cluster-randomized controlled trial with 12-months follow-up 

      Borgen, Christine Sundgot; Friborg, Oddgeir; Kolle, Elin; Engen, Kethe Marie Elgesem; Sundgot-Borgen, Jorunn; Rosenvinge, Jan H; Pettersen, Gunn; Torstveit, Monica Klungland; Piran, Niva; Bratland-Sanda, Solfrid (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-03-28)
      We examined the effects of the Healthy Body Image (HBI) intervention on positive embodiment and health-related quality of life among Norwegian high school students. The intervention comprised three interactive workshops, with body image, media literacy, and lifestyle as main themes. In total, 2,446 12th grade boys (43%) and girls (mean age 16.8 years) from 30 high schools participated in a ...
    • The Healthy Body Image intervention and reduction in eating disorder symptomatology and muscle building supplement use in high school students: a study of mediating factors 

      Svantorp-Tveiten, Kethe Marie Engen; Ivarsson, Andreas; Torstveit, Monica Klungland; Sundgot-Borgen, Christine; Mathisen, Therese Fostervold; Bratland-Sanda, Solfrid; Rosenvinge, Jan H; Friborg, Oddgeir; Pettersen, Gunn; Sundgot-Borgen, Jorunn (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-06-28)
      Background: Mediation analysis is important to test the theoretical framework underpinning an intervention. We therefore aimed to investigate if the healthy body image (HBI) intervention’s effect on eating disorder (ED) symptomatology and use of muscle building supplements was mediated by the change in risk and protective factors for ED development and muscle building supplement use. <p> <p>Methods: ...