| 1. |
- Almlöv, Jonas, et al.
(författare)
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Therapist effects in guided internet-delivered CBT for Anxiety Disorders
- 2011
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Ingår i: Behavioural and Cognitive Psychotherapy. - London : Wisepress. - 1352-4658 .- 1469-1833. ; 39:3, s. 311-322
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Tidskriftsartikel (refereegranskat)abstract
- Background: Guided internet-delivered CBT for anxiety disorders has received increasing empirical support, but little is known regarding the role of the therapist. Aims: This study addressed therapist factors in guided internet-delivered cognitive behavioural therapy for anxiety disorders. Method: Data from three controlled trials with a total N of 119 were analyzed with attention to differences between eight therapists. Results: No significant mean level differences between therapists appeared in the dataset. However, one significant intraclass correlation between participants was found, suggesting that the outcome on the Beck Anxiety Inventory might have been influenced by the impact of the individual therapists. Conclusion: The therapist can possibly have some influence on the outcome of guided internet-delivered CBT for anxiety disorders, but studies with more statistical power are needed to establish whether therapist effects are present in this modality of psychological treatment. The present study was underpowered to detect minor therapist effects.
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| 2. |
- Andersson, Erik, et al.
(författare)
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A Randomized Controlled Trial of Guided Internet-delivered Cognitive Behavioral Therapy for Erectile Dysfunction
- 2011
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Ingår i: Journal of Sexual Medicine. - : Wiley-Blackwell. - 1743-6095 .- 1743-6109. ; 8:10, s. 2800-2809
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Tidskriftsartikel (refereegranskat)abstract
- Introduction. Men with erectile dysfunction are often worried about their condition, have interpersonal difficulties, and have a reduced quality of life. Internet-delivered cognitive behavior therapy (ICBT) has been shown effective for a number of health problems but evidence is limited concerning the treatment of erectile dysfunction. less thanbrgreater than less thanbrgreater thanAim. The study investigated the effects of ICBT for erectile dysfunction. less thanbrgreater than less thanbrgreater thanMethods. Seventy-eight men were included in the study and randomized to either ICBT or to a control group, which was an online discussion group. Treatment consisted of a 7-week Web-based program with e-mail-based therapist support. Each therapist spent an average of 55 minutes per participant. less thanbrgreater than less thanbrgreater thanMain Outcome Measure. The International Index of Erectile Functioning five-item version was administered via the telephone at pretreatment, post-treatment, and 6 months after receiving ICBT. less thanbrgreater than less thanbrgreater thanResults. At post-treatment, the treatment group had significantly greater improvements with regard to erectile performance compared with the control group. Between-group differences at post-treatment were small (d = 0.1), but increased at the 6-month follow-up (d = 0.88). less thanbrgreater than less thanbrgreater thanConclusions. This study provides support for the use of ICBT as a possible treatment format for erectile dysfunction.
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| 3. |
- Andersson, Erik, et al.
(författare)
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Cost-effectiveness of internet-based cognitive behavior therapy for irritable bowel syndrome: results from a randomized controlled trial
- 2011
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Ingår i: BMC Public Health. - : BioMed Central. - 1471-2458. ; 11:215
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Tidskriftsartikel (refereegranskat)abstract
- Background: Irritable Bowel Syndrome (IBS) is highly prevalent and is associated with a substantial economic burden. Cognitive behavior therapy (CBT) has been shown to be effective in treating IBS. The aim of this study was to evaluate the cost-effectiveness of a new treatment alternative, internet-delivered CBT based on exposure and mindfulness exercises. Methods: Participants (N = 85) with IBS were recruited through self-referral and were assessed via a telephone interview and self-report measures on the internet. Participants were randomized to internet-delivered CBT or to a discussion forum. Economic data was assessed at pre-, post- and at 3-month and 1 year follow-up. Results: Significant cost reductions were found for the treatment group at $16,806 per successfully treated case. The cost reductions were mainly driven by reduced work loss in the treatment group. Results were sustained at 3-month and 1 year follow-up. Conclusions: Internet-delivered CBT appears to generate health gains in IBS treatment and is associated with cost-savings from a societal perspective.
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| 4. |
- Andersson, Evelyn, et al.
(författare)
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Genetic Polymorphisms in Monoamine Systems and Outcome of Cognitive Behavior Therapy for Social Anxiety Disorder
- 2013
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Ingår i: PLOS ONE. - : Public Library of Science (PLoS). - 1932-6203. ; 8:11
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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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| 5. |
- Andersson, Erik, et al.
(författare)
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Internet-based cognitive behavior therapy for obsessive compulsive disorder: A pilot study
- 2011
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Ingår i: BMC Psychiatry. - : BioMed Central. - 1471-244X. ; 11:125
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Tidskriftsartikel (refereegranskat)abstract
- Background: Cognitive behavior therapy (CBT) is widely regarded as an effective treatment for obsessive compulsive disorder (OCD), but access to CBT therapists is limited. Internet-based CBT (ICBT) with therapist support is a way to increase access to CBT but has not been developed or tested for OCD. The aim of this study was to evaluate ICBT for OCD. less thanbrgreater than less thanbrgreater thanMethod: An open trial where patients (N = 23) received a 15-week ICBT program with therapist support consisting of psychoeducation, cognitive restructuring and exposure with response prevention. The primary outcome was the Yale-Brown Obsessive Compulsive Scale (Y-BOCS), which was assessed by a psychiatrist before and immediately after treatment. Secondary outcomes were self-rated measures of OCD symptoms, depressive symptoms, general functioning, anxiety and quality of life. All assessments were made at baseline and post-treatment. less thanbrgreater than less thanbrgreater thanResults: All participants completed the primary outcome measure at all assessment points. There were reductions in OCD symptoms with a large within-group effect size (Cohens d = 1.56). At post-treatment, 61% of participants had a clinically significant improvement and 43% no longer fulfilled the diagnostic criteria of OCD. The treatment also resulted in statistically significant improvements in self-rated OCD symptoms, general functioning and depression. less thanbrgreater than less thanbrgreater thanConclusions: ICBT with therapist support reduces OCD symptoms, depressive symptoms and improves general functioning. Randomized trials are needed to confirm the effectiveness of this new treatment format.
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| 6. |
- Andersson, E, et al.
(författare)
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Internet-based cognitive behaviour therapy for obsessive-compulsive disorder: a randomized controlled trial
- 2012
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Ingår i: Psychological Medicine. - : Cambridge University Press (CUP). - 0033-2917 .- 1469-8978. ; 42:10, s. 2193-2203
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Tidskriftsartikel (refereegranskat)abstract
- Background. Cognitive behaviour therapy (CBT) is an effective treatment for obsessive-compulsive disorder (OCD) but access to CBT is limited. Internet-based CBT (ICBT) with therapist support is potentially a more accessible treatment. There are no randomized controlled trials testing ICBT for OCD. The aim of this study was to investigate the efficacy of ICBT for OCD in a randomized controlled trial. less thanbrgreater than less thanbrgreater thanMethod. Participants (n=101) diagnosed with OCD were randomized to either 10 weeks of ICBT or to an attention control condition, consisting of online supportive therapy. The primary outcome measure was the Yale-Brown Obsessive Compulsive Scale (YBOCS) administered by blinded assessors. less thanbrgreater than less thanbrgreater thanResults. Both treatments lead to significant improvements in OCD symptoms, but ICBT resulted in larger improvements than the control condition on the YBOCS, with a significant between-group effect size (Cohens d) of 1.12 (95% CI 0.69-1.53) at post-treatment. The proportion of participants showing clinically significant improvement was 60% (95% CI 46-72) in the ICBT group compared to 6% (95% CI 1-17) in the control condition. The results were sustained at follow-up. less thanbrgreater than less thanbrgreater thanConclusions. ICBT is an efficacious treatment for OCD that could substantially increase access to CBT for OCD patients. Replication studies are warranted.
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| 7. |
- Andersson, Erik, et al.
(författare)
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Long-term efficacy of Internet-based cognitive behavior therapy for obsessive-compulsive disorder with or without booster : a randomized controlled trial
- 2014
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Ingår i: Psychological Medicine. - : Cambridge University Press. - 0033-2917 .- 1469-8978. ; 44:13, s. 2877-2887
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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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| 8. |
- Andersson, Gerhard, et al.
(författare)
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A 3.5-year follow-up of Internet-delivered cognitive behavior therapy for major depression
- 2013
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Ingår i: Journal of Mental Health. - London, UK : Informa Healthcare. - 0963-8237 .- 1360-0567. ; 22:2, s. 155-164
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Tidskriftsartikel (refereegranskat)abstract
- BackgroundInternet-delivered cognitive behavior therapy (ICBT) for major depression has been tested in several trials, but only with follow-ups up to 1.5 years.AimThe aim of this study was to evaluate the outcome of ICBT 3.5 years after treatment completion.MethodsA total of 88 people with major depression were randomized to either guided self-help or e-mail therapy in the original trial. One-third was initially on a waiting-list. Treatment was provided for eight weeks and in this report long-term follow-up data were collected. Also included were data from post-treatment and six-month follow-up. A total of 58% (51/88) completed the 3.5-year follow-up. Analyses were performed using a random effects repeated measures piecewise growth model to estimate trajectory shape over time and account for missing data.ResultsResults showed continued lowered scores on the Beck Depression Inventory (BDI). No differences were found between the treatment conditions. A large proportion of participants (55%) had sought and received additional treatments in the follow-up period. A majority (56.9%) of participants had a BDI score lower than 10 at the 3.5-year follow-up.ConclusionsPeople with mild to moderate major depression may benefit from ICBT 3.5-years after treatment completion.
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| 9. |
- Andersson, Gerhard, 1966-, et al.
(författare)
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Advantages and limitations of Internet-based interventions for common mental disorders
- 2014
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Ingår i: World Psychiatry. - : John Wiley & Sons. - 1723-8617 .- 2051-5545. ; 13:1, s. 4-11
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Tidskriftsartikel (refereegranskat)abstract
- Several Internet interventions have been developed and tested for common mental disorders, and the evidence to date shows that these treatments often result in similar outcomes as in face-to-face psychotherapy and that they are cost-effective. In this paper, we first review the pros and cons of how participants in Internet treatment trials have been recruited. We then comment on the assessment procedures often involved in Internet interventions and conclude that, while online questionnaires yield robust results, diagnoses cannot be determined without any contact with the patient. We then review the role of the therapist and conclude that, although treatments including guidance seem to lead to better outcomes than unguided treatments, this guidance can be mainly practical and supportive rather than explicitly therapeutic in orientation. Then we briefly describe the advantages and disadvantages of treatments for mood and anxiety disorders and comment on ways to handle comorbidity often associated with these disorders. Finally we discuss challenges when disseminating Internet interventions. In conclusion, there is now a large body of evidence suggesting that Internet interventions work. Several research questions remain open, including how Internet interventions can be blended with traditional forms of care.
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| 10. |
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