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Träfflista för sökning "WFRF:(Andersson Gerhard) ;pers:(Andersson Gerhard 1966)"

Sökning: WFRF:(Andersson Gerhard) > Andersson Gerhard 1966

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1.
  • Andersson, Erik, et al. (författare)
  • d-Cycloserine vs Placebo as Adjunct to Cognitive Behavioral Therapy for Obsessive-Compulsive Disorder and Interaction With Antidepressants A Randomized Clinical Trial
  • 2015
  • Ingår i: JAMA psychiatry. - : American Medical Association (AMA). - 2168-6238 .- 2168-622X. ; 72:7, s. 659-667
  • Tidskriftsartikel (refereegranskat)abstract
    • IMPORTANCE It is unclear whether D-cycloserine (DCS), a partial N-methyl-D-aspartate agonist that enhances fear extinction, can augment the effects of exposure-based cognitive behavioral therapy (CBT) for obsessive-compulsive disorder (OCD). OBJECTIVES To examine whether DCS augments the effects of CBT for OCD and to explore (post hoc) whether concomitant antidepressant medication moderates the effects of DCS. DESIGN, SETTING, AND PARTICIPANTS A 12-week, double-blind randomized clinical trial with 3-month follow-up conducted at an academic medical center between September 4, 2012, and September 26, 2013. Participants included 128 adult outpatients with a primary diagnosis of OCD and a Yale-Brown Obsessive Compulsive Scale (Y-BOCS) score of 16 or higher. Concurrent antidepressant medication was permitted if the dose had been stable for at least 2 months prior to enrollment and remained unchanged during the trial. The main analysis was by intention-to-treat population. INTERVENTIONS All participants received a previously validated Internet-based CBT protocol over 12 weeks and were randomized to receive either 50 mg of DCS or placebo, administered 1 hour before each of 5 exposure and response prevention tasks. MAIN OUTCOMES AND MEASURES Clinician-administered Y-BOCS score at week 12 and at 3-month follow-up. Remission was defined as a score of 12 or lower on the Y-BOCS. RESULTS In the primary intention-to-treat analyses, DCS did not augment the effects of CBT compared with placebo (mean [SD] clinician-rated Y-BOCS score, DCS: 13.86 [6.50] at week 12 and 12.35 [7.75] at 3-month follow-up; placebo: 11.77 [5.95] at week 12 and 12.37 [6.68] at 3-month follow-up) but showed a significant interaction with antidepressants (clinician-rated Y-BOCS, B = -1.08; Z = -2.79; P = .005). Post hoc analyses revealed that antidepressants significantly impaired treatment response in the DCS group but not the placebo group, at both posttreatment and follow-up (clinician-rated Y-BOCS: t(62) = -3.00; P = .004; and t(61) = -3.49; P < .001, respectively). In the DCS group, a significantly greater proportion of antidepressant-free patients achieved remission status at follow-up (60% [95% CI, 45%-74%]) than antidepressant-medicated patients (24% [95% CI, 9%-48%]) (P = .008). Antidepressants had no effect in the placebo group (50% [95% CI, 36%-64%] remission rate in both groups). CONCLUSIONS AND RELEVANCE The findings suggest that antidepressants may interact with DCS to block its facilitating effect on fear extinction. Use of DCS may be a promising CBT augmentation strategy but only in antidepressant-free patients with OCD.
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2.
  • Andersson, Evelyn, et al. (författare)
  • Genetic Polymorphisms in Monoamine Systems and Outcome of Cognitive Behavior Therapy for Social Anxiety Disorder
  • 2013
  • Ingår i: PLOS ONE. - : Public Library of Science (PLoS). - 1932-6203. ; 8:11
  • Tidskriftsartikel (refereegranskat)abstract
    • ObjectiveThe role of genetics for predicting the response to cognitive behavior therapy (CBT) for social anxiety disorder (SAD) has only been studied in one previous investigation. The serotonin transporter (5-HTTLPR), the catechol-o-methyltransferase (COMT) val158met, and the tryptophan hydroxylase-2 (TPH2) G-703Tpolymorphisms are implicated in the regulation of amygdala reactivity and fear extinction and therefore might be of relevance for CBT outcome. The aim of the present study was to investigate if these three gene variants predicted response to CBT in a large sample of SAD patients.MethodParticipants were recruited from two separate randomized controlled CBT trials (trial 1: n = 112, trial 2: n = 202). Genotyping were performed on DNA extracted from blood or saliva samples. Effects were analyzed at follow-up (6 or 12 months after treatment) for both groups and for each group separately at post-treatment. The main outcome measure was the Liebowitz Social Anxiety Scale Self-Report.ResultsAt long-term follow-up, there was no effect of any genotype, or gene × gene interactions, on treatment response. In the subsamples, there was time by genotype interaction effects indicating an influence of the TPH2 G-703T-polymorphism on CBT short-term response, however the direction of the effect was not consistent across trials.ConclusionsNone of the three gene variants, 5-HTTLPR, COMTval158met and TPH2 G-703T, was associated with long-term response to CBT for SAD.
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3.
  • Andersson, Erik, et al. (författare)
  • Long-term efficacy of Internet-based cognitive behavior therapy for obsessive-compulsive disorder with or without booster : a randomized controlled trial
  • 2014
  • Ingår i: Psychological Medicine. - : Cambridge University Press. - 0033-2917 .- 1469-8978. ; 44:13, s. 2877-2887
  • Tidskriftsartikel (refereegranskat)abstract
    • Background. As relapse after completed cognitive behavior therapy (CBT) for obsessive-compulsive disorder (OCD) is common, many treatment protocols include booster programs to improve the long-term effects. However, the effects of booster programs are not well studied. In this study, we investigated the long-term efficacy of Internet-based CBT (ICBT) with therapist support for OCD with or without an Internet-based booster program. Method. A total of 101 participants were included in the long-term follow-up analysis of ICBT. Of these, 93 were randomized to a booster program or no booster program. Outcome assessments were collected at 4, 7, 12 and 24 months after receiving ICBT. Results. The entire sample had sustained long-term effects from pre-treatment to all follow-up assessments, with large within-group effect sizes (Cohen's d=1.58-2.09). The booster group had a significant mean reduction in OCD symptoms compared to the control condition from booster baseline (4 months) to 7 months, but not at 12 or 24 months. Participants in the booster group improved significantly in terms of general functioning at 7, 12 and 24 months, and had fewer relapses. Kaplan-Meier analysis also indicated a significantly slower relapse rate in the booster group. Conclusions. The results suggest that ICBT has sustained long-term effects and that adding an Internet-based booster program can further improve long-term outcome and prevent relapse for some OCD patients.
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6.
  • Bargoria, Victor, et al. (författare)
  • Running for your life : A qualitative study of champion long-distance runners strategies to sustain excellence in performance and health
  • 2020
  • Ingår i: Journal of Science and Medicine in Sport. - : Elsevier. - 1440-2440 .- 1878-1861. ; 23:8, s. 715-720
  • Tidskriftsartikel (refereegranskat)abstract
    • ObjectivesTo investigate champion long-distance runners’ strategies for managing injury and illness symptoms and staying well.DesignQualitative research study.MethodsTwelve long-distance runners were interviewed immediately after having competed in World Championships finals. Thematic analysis was used to categorise and structure the data. The results were presented as primary themes and overarching constructs representing connections between the primary themes.ResultsThe champion runners’ basic tactic to manage symptoms of ill health was characterized by rapid adjustment of sports load and a strong incentive to learn from experience and professional advice. This tactic was named here educated flexibility. A secondary exigency tactic was associated with reaching short-term goals and a consequential acceptance of health hazards. The runners used economic and other environmental strain to explain use of the exigency tactic. Most champion runners’ long-term strategy to stay well included both tactics successfully combined to maintain a performance level assuring a regular income. Avoidance of letting environmental strain and health problems create vicious circles was at the centre of these strategies.ConclusionsChampion runners’ main strategy to stay well and sustain their superiority in performance was characterized by constantly paying attention to symptoms of ill health, listening to medical advice, and not letting environmental strain interfere with adjustment of sports load. Many top-level runners originate from global regions where formal education programs and health insurance plans are poorly regulated and supported. Bio-psychosocial models including empowerment at individual and systems levels should be considered when health services are planned for professional runners.
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7.
  • El Alaoui, Samir, et al. (författare)
  • Predictors and Moderators of Internet- and Group-Based Cognitive Behaviour Therapy for Panic Disorder
  • 2013
  • Ingår i: PLOS ONE. - : Public Library of Science (PLoS). - 1932-6203. ; 8:11
  • Tidskriftsartikel (refereegranskat)abstract
    • Internet-based cognitive behaviour therapy (ICBT) can be equally effective as traditional face-to-face cognitive behaviour therapy (CBT) for treating panic disorder (PD). However, little is known about the predictors and moderators of outcome of ICBT when delivered in psychiatric outpatient settings. This study investigated a selection of outcome predictors and moderators of ICBT for panic disorder based on data from a randomised controlled trial where therapist-guided ICBT was compared with group CBT (GCBT) for panic disorder. Participants (N = 104) received 10 weeks of ICBT or GCBT and were assessed before and after treatment, and after six months. Multiple regression analyses were used to test for significant predictors of treatment outcome. Predictors of positive treatment response for both modalities were having low levels of symptom severity and work impairment. In addition, anxiety sensitivity was found to have a small negative relationship with treatment outcome, suggesting that anxiety sensitivity may slightly enhance treatment response. Treatment modality had a moderating effect on the relationship between domestic impairment and outcome and on the relationship between initial age of onset of panic symptoms and treatment outcome, favouring ICBT for patients having had an early onset of PD symptoms and for patients having a high domestic functional impairment. These results suggest that both ICBT and GCBT are effective treatment modalities for PD and that it is possible to predict a significant proportion of the long-term outcome variance based on clinical variables.
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8.
  • Hedman, E., et al. (författare)
  • Cost-effectiveness and long-term effectiveness of Internet-based cognitive behaviour therapy for severe health anxiety
  • 2013
  • Ingår i: Psychological Medicine. - : Cambridge University Press. - 0033-2917 .- 1469-8978. ; 43:2, s. 363-374
  • Tidskriftsartikel (refereegranskat)abstract
    • BACKGROUND: Severe health anxiety is a common condition associated with functional disability, making it a costly disorder from a societal perspective. Internet-based cognitive behaviour therapy (ICBT) is a promising treatment but no previous study has assessed the cost-effectiveness or long-term outcome of ICBT for severe health anxiety. The aim of this study was to investigate the cost-effectiveness and 1-year treatment effects of ICBT for severe health anxiety. Method Cost-effectiveness and 1-year follow-up data were obtained from a randomized controlled trial (RCT) comparing ICBT (n = 40) to an attention control condition (CC, n = 41). The primary outcome measure was the Health Anxiety Inventory (HAI). A societal perspective was taken and incremental cost-effectiveness ratios (ICERs) were calculated using bootstrap sampling.RESULTS: The main ICER was -£1244, indicating the societal economic gain for each additional case of remission when administering ICBT. Baseline to 1-year follow-up effect sizes on the primary outcome measure were large (d = 1.71-1.95).CONCLUSIONS: ICBT is a cost-effective treatment for severe health anxiety that can produce substantial and enduring effects.
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9.
  • Hedman, Erik, et al. (författare)
  • Health anxiety in obsessive compulsive disorder and obsessive compulsive symptoms in severe health anxiety : An investigation of symptom profiles.
  • 2017
  • Ingår i: Journal of Anxiety Disorders. - : Elsevier. - 0887-6185 .- 1873-7897. ; 45, s. 80-86
  • Tidskriftsartikel (refereegranskat)abstract
    • Severe health anxiety (SHA) shares features with obsessive-compulsive disorder (OCD) and in recent years there has been a debate as to whether the two disorders may represent two facets of the same condition. Few studies have however investigated the overlap and differences in symptom profiles between the disorders. The primary aim of the present study was to investigate these aspects using one sample of participants with a principal diagnosis of SHA and one sample of participants with a principal OCD diagnosis. The second aim was to examine differences in improvement trajectories on measures of health anxiety and OCD symptoms in patients with SHA receiving treatment with exposure and response prevention. We compared persons participating in clinical trials with a principal diagnosis of SHA (N=290) to persons with a principal diagnosis of OCD (n=95) on measures of health anxiety, OCD symptoms, and depressive symptoms. A subsample of SHA participants (n=99) received exposure and response prevention (ERP) for SHA over 12 weeks and was assessed at baseline and post-treatment. The results showed large and significant differences between SHA and OCD patients on measures of health anxiety (ds=2.99-3.09) and OCD symptoms (ds=1.64-2.14), while they had equivalent levels of depressive symptoms (d=0.19, 95% CI [-0.04, 0.43]). In the SHA sample 7.6% had comorbid OCD, and in the OCD sample 9.5% had SHA. For participants with a principal diagnosis of SHA, ERP led to large reductions of health anxiety, but effects on OCD symptoms were small to moderate. Among participants with comorbid OCD, effect sizes were large on measures of health anxiety and moderate to large on OCD measures. We conclude that SHA and OCD are separate psychiatric disorders with limited overlap in symptom profiles.
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10.
  • Hedman, Erik, et al. (författare)
  • Psychometric properties of Internet-administered measures of health anxiety : an investigation of the Health Anxiety Inventory, the Illness Attitude Scales, and the Whiteley Index
  • 2015
  • Ingår i: Journal of Anxiety Disorders. - : Elsevier BV. - 0887-6185 .- 1873-7897. ; 31, s. 32-37
  • Tidskriftsartikel (refereegranskat)abstract
    • BACKGROUND: The Health Anxiety Inventory (HAI), the Illness Attitude Scales (IAS), and the Whiteley Index (WI) are three of the most widely used health anxiety measures, but their psychometric properties have not been investigated when administered via the Internet.METHODS: We investigated the three instruments' test-retest reliability, internal consistency, convergent, and discriminant validity and sensitivity to change using one sample (n=111) of participants with severe health anxiety and one sample of healthy controls (n=92).RESULTS: The HAI, IAS, and WI showed high test-retest reliability (rs≥.80), good convergent, and discriminant validity and were sensitive to detect change. The HAI and IAS (αs≥.85), but not the WI (αs≤.60) demonstrated high internal consistency.CONCLUSIONS: The HAI, IAS, and WI have good psychometric properties, except for the low internal consistency of WI, when used as Internet-administered measures of health anxiety. Using these measures over the Internet offers highly important advantages such as increased ease of administration, reduced attrition, and cost-efficient treatment evaluation.
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