| 1. |
- Almlöv, Jonas, et al.
(author)
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Therapist effects in guided internet-delivered CBT for Anxiety Disorders
- 2011
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In: Behavioural and Cognitive Psychotherapy. - London : Wisepress. - 1352-4658 .- 1469-1833. ; 39:3, s. 311-322
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Journal article (peer-reviewed)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. |
- Alozkan Sever, Cansu, et al.
(author)
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Feasibility and acceptability of Problem Management Plus with Emotional Processing (PM plus EP) for refugee youth living in the Netherlands : study protocol
- 2021
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In: European Journal of Psychotraumatology. - : Taylor & Francis. - 2000-8198 .- 2000-8066. ; 12:1
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Journal article (peer-reviewed)abstract
- Background Refugee youth experience hardships associated with exposure to trauma in their homelands and during and after displacement, which results in higher rates of common mental disorders. The World Health Organization (WHO) developed Problem Management Plus (PM+), a non-specialist-delivered brief psychological intervention, for individuals who have faced adversity. PM+ comprises problem-solving, stress management, behavioural activation and strengthening social support. However, it does not include an emotional processing component, which is indicated in trauma-exposed populations. Objective This pilot randomized controlled trial (RCT) aims to evaluate the feasibility and acceptability of PM+, adapted to Syrian, Eritrean and Iraqi refugee youth residing in the Netherlands, with and without a newly developed Emotional Processing (EP) Module. Methods Refugee youth (N = 90) between 16 and 25 years of age will be randomized into PM+ with care-as-usual (CAU), (n = 30), PM+ with Emotional Processing (PM+EP) with CAU (n = 30) or CAU only (n = 30). Inclusion criteria are self-reported psychological distress (Kessler Psychological Distress Scale; K10 > 15) and impaired daily functioning (WHO Disability Assessment Schedule; WHODAS 2.0 > 16). Participants will be assessed at baseline, one-week post-intervention and three-month follow-up. The main outcome is the feasibility and acceptability of the adapted PM+ and PM+EP. The secondary outcomes are self-reported psychological distress, functional impairment, post-traumatic stress disorder (PTSD) symptom severity and diagnosis, social support, and self-identified problems. The pilot RCT will be succeeded by a process evaluation including trial participants, participants' significant others, helpers, and mental health professionals (n = 20) to evaluate their experiences with the PM+ and PM+EP programmes. Results and Conclusion This is the first study that evaluates the feasibility of PM+ for this age range with an emotional processing module integrated. The results may inform larger RCTs and implementation of PM+ interventions among refugee youth.
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| 3. |
- Andersson, Gerhard, et al.
(author)
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Can the patient decide which modules to endorse? : an open trial of tailored internet treatment of anxiety disorders
- 2011
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In: Cognitive Behaviour Therapy. - : Routledge, Taylor and Francis Group. - 1650-6073 .- 1651-2316. ; 1:40, s. 57-64
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Journal article (peer-reviewed)abstract
- Internet-delivered cognitive behaviour therapy commonly consists of disorder-specific modules that are based on face-to-face manuals. A recent development in the field is to tailor the treatment according to patient profile, which has the potential to cover comorbid conditions in association with anxiety and mood disorders. However, it could be that the patients themselves are able to decide what modules to use. The authors tested this in an open pilot trial with 27 patients with mixed anxiety disorders. Modules were introduced with a brief description, and patients could choose which modules to use. The exception was the two first modules and the last, which involved psychoeducation and relapse prevention. The treatment period lasted for 10 weeks. Results showed large within-group effect sizes, with an average Cohen’s d of 0.88. In a structured clinical interview, a majority (54%) had significantly improved 10 weeks after commencing treatment. Only one person dropped out. On the basis of results of this preliminary study, the authors suggest that the role of choice and tailoring should be further explored in controlled trials and that patient choice could be incorporated into Internet-delivered treatment packages.
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| 4. |
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| 5. |
- Andersson, Gerhard, 1966-, et al.
(author)
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Effects of Internet-delivered cognitive behaviour therapy for anxiety and mood disorders
- 2007
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In: Review series. Psychiatry. - 1401-9302. ; 9
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Journal article (peer-reviewed)abstract
- The Internet has revolutionized access to health information and made communication over long distances easier. This article reviews the use of the Internet for delivery of cognitive behaviour therapy. As a starting point the concept of guided self-help is introduced. We next present the treatment approach and different protocols briefly. Next, Swedish studies on panic disorder, social phobia, and depression are summarized using meta-analytic techniques. Implementation in regular clinical setting is discussed with a focus on efficacy versus effectiveness, training of therapist, combined treatments and cost-effectiveness. We conclude that Internet treatment is likely to become a treatment option for suitable patients in the future.
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| 6. |
- Andersson, Gerhard, 1966-, et al.
(author)
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Guided Internet-based vs. face-to-face cognitive behavior therapy for psychiatric and somatic disorders : a systematic review and meta-analysis
- 2014
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In: World Psychiatry. - : Wiley. - 1723-8617 .- 2051-5545. ; 13:3, s. 288-295
-
Journal article (peer-reviewed)abstract
- Internet-delivered cognitive behavior therapy (ICBT) has been tested in many research trials, but to a lesser extent directly compared to face-to-face delivered cognitive behavior therapy (CBT). We conducted a systematic review and meta-analysis of trials in which guided ICBT was directly compared to face-to-face CBT. Studies on psychiatric and somatic conditions were included. Systematic searches resulted in 13 studies (total N=1053) that met all criteria and were included in the review. There were three studies on social anxiety disorder, three on panic disorder, two on depressive symptoms, two on body dissatisfaction, one on tinnitus, one on male sexual dysfunction, and one on spider phobia. Face-to-face CBT was either in the individual format (n=6) or in the group format (n=7). We also assessed quality and risk of bias. Results showed a pooled effect size (Hedges' g) at post-treatment of −0.01 (95% CI: −0.13 to 0.12), indicating that guided ICBT and face-to-face treatment produce equivalent overall effects. Study quality did not affect outcomes. While the overall results indicate equivalence, there are still few studies for each psychiatric and somatic condition and many conditions for which guided ICBT has not been compared to face-to-face treatment. Thus, more research is needed to establish equivalence of the two treatment formats.
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| 7. |
- Andersson, Gerhard, et al.
(author)
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Internet-based psychodynamic versus cognitive behavioral guided self-help for generalized anxiety disorder : A randomized controlled trial
- 2012
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In: Psychotherapy and Psychosomatics. - Basel, Switzerland : Karger. - 0033-3190 .- 1423-0348. ; 81:6, s. 344-355
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Journal article (peer-reviewed)abstract
- Background: Guided Internet-based cognitive behavior therapy (ICBT) has been tested in many trials and found to be effective in the treatment of anxiety and mood disorders. Generalized anxiety disorder (GAD) has also been treated with ICBT, but there are no controlled trials on guided Internet-based psychodynamic treatment (IPDT). Since there is preliminary support for psychodynamic treatment for GAD, we decided to test if a psychodynamically informed self-help treatment could be delivered via the Internet. The aim of the study was to investigate the efficacy of IPDT for GAD and to compare against ICBT and a waiting list control group.Method: A randomized controlled superiority trial with individuals diagnosed with GAD comparing guided ICBT (n = 27) and IPDT (n = 27) against a no treatment waiting list control group (n = 27). The primary outcome measure was the Penn State Worry Questionnaire.Results: While there were no significant between-group differences immediately after treatment on the main outcome measure, both IPDT and ICBT resulted in improvements with moderate to large within-group effect sizes at 3 and 18 months follow-up on the primary measure in the completer analyses. The differences against the control group, although smaller, were still significant for both PDT and CBT when conforming to the criteria of clinically significant improvement. The active treatments did not differ significantly. There was a significant group by time interaction regarding GAD symptoms, but not immediately after treatment.Conclusions: IPDT and ICBT both led to modest symptom reduction in GAD, and more research is needed.Copyright (C) 2012 S. Karger AG, Basel
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| 8. |
- Andersson, Gerhard, et al.
(author)
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Psychological treatment as an umbrella term for evidence-based psychotherapies?
- 2009
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In: Nordic Psychology. - : DANSK PSYKOLOGISK FORLAG-DANISH PSYCHOLOGICAL PUBLISHERS. - 1901-2276 .- 1904-0016. ; 61:2
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Journal article (peer-reviewed)abstract
- The purpose of this review paper is to comment on a suggestion proposed by David Barlow [Barlow, D. H. (2004). Psychological treatments. American Psychologist, 59, 869-878.], that evidence-based psychotherapies with a clear medical objective should go under the name of "psychological treatments". We begin by describing the definition of psychotherapy and the role of common factors. We then briefly present how different "schools of psychotherapy" are differentiated. In the literature it is clear that psychological treatments can be both more broad in terms of the ways of delivery (e. g., Internet-based treatment), but also more narrow than psychotherapies, as psychological treatments are now increasingly regarded as evidence-based medical treatments for specific medical conditions. Psychological treatments are also increasingly recommended in treatment guidelines. Some benefits from using the concept of psychological treatment instead of the equally important but less medically oriented term psychotherapy are presented. As the regular "brand names" of psychotherapy are increasingly integrating procedures from different schools of therapy, and that the objective of psychotherapy often is adjustment and growth, we agree with the suggestion by Barlow that endorsing the term "psychological treatment" could facilitate the further dissemination of evidence-based psychological treatment procedures.
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| 9. |
- Andersson, Gerhard, et al.
(author)
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Therapeutic alliance in guided internet-delivered cognitive behavioural treatment of depression, generalized anxiety disorder and social anxiety disorder
- 2012
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In: Behaviour Research and Therapy. - : Elsevier. - 0005-7967 .- 1873-622X. ; 50:9, s. 544-550
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Journal article (peer-reviewed)abstract
- Guided internet-delivered cognitive behaviour therapy (ICBT) has been found to be effective in several controlled trials, but the mechanisms of change are largely unknown. Therapeutic alliance is a factor that has been studied in many psychotherapy trials, but the role of therapeutic alliance in ICBT is less well known. The present study investigated early alliance ratings in three separate samples. Participants from one sample of depressed individuals (N = 49), one sample of individuals with generalized anxiety disorder (N = 35), and one sample with social anxiety disorder (N = 90) completed the Working Alliance Inventory (WAI) modified for ICBT early in the treatment (weeks 3-4) when they took part in guided ICBT for their conditions. Results showed that alliance ratings were high in all three samples and that the WAI including the subscales of Task, Goal and Bond had high internal consistencies. Overall, correlations between the WAI and residualized change scores on the primary outcome measures were small and not statistically significant. We conclude that even if alliance ratings are in line with face-to-face studies, therapeutic alliance as measured by the WAI is probably less important in ICBT than in regular face-to-face psychotherapy.
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| 10. |
- Asselbergs, Joost, et al.
(author)
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A systematic review and meta-analysis of the effect of cognitive interventions to prevent intrusive memories using the trauma film paradigm
- 2023
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In: Journal of Psychiatric Research. - : Elsevier. - 0022-3956 .- 1879-1379. ; 159, s. 116-129
-
Research review (peer-reviewed)abstract
- There is an unmet need for effective early interventions that can relieve initial trauma symptoms and reduce symptoms of posttraumatic stress disorder (PTSD). We evaluated the efficacy of cognitive interventions compared to control in reducing intrusion frequency and PTSD symptoms in healthy individuals using the trauma film paradigm, in which participants view a film with aversive content as an experimental analogue of trauma exposure. A systematic literature search identified 41 experiments of different cognitive interventions targeting intrusions. In the meta-analysis, the pooled effect size of 52 comparisons comparing cognitive interventions to no-intervention controls on intrusions was moderate (g =-0.46, 95% CI [-0.61 to-0.32], p < .001). The pooled effect size of 16 comparisons on PTSD symptoms was also moderate (g =-0.31, 95% CI [-0.46 to-0.17], p < .001). Both visuospatial interference and imagery rescripting tasks were associated with significantly fewer in-trusions than controls, whereas verbal interference and meta-cognitive processing tasks showed nonsignificant effect sizes. Interventions administered after viewing the trauma film showed significantly fewer intrusions than controls, whereas interventions administered during film viewing did not. No experiments had low risk of bias (ROB), 37 experiments had some concerns of ROB, while the remaining four experiments had high ROB. To the best of our knowledge, this is the first meta-analysis investigating the efficacy of cognitive interventions targeting intrusions in non-clinical samples. Results seem to be in favour of visuospatial interference tasks rather than verbal tasks. More research is needed to develop an evidence base on the efficacy of various cognitive in-terventions and test their clinical translation to reduce intrusive memories of real trauma.
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| 11. |
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| 12. |
- Bower, Peter, et al.
(author)
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Influence of initial severity of depression on effectiveness of low intensity interventions : meta-analysis of individual patient data
- 2013
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In: BMJ (Clinical Research Edition). - : BMJ Publishing Group: BMJ. - 0959-8138 .- 1756-1833. ; 346
-
Journal article (peer-reviewed)abstract
- Objective To assess how initial severity of depression affects the benefit derived from low intensity interventions for depression.Design Meta-analysis of individual patient data from 16 datasets comparing low intensity interventions with usual care.Setting Primary care and community settings.Participants 2470 patients with depression.Interventions Low intensity interventions for depression (such as guided self help by means of written materials and limited professional support, and internet delivered interventions).Main outcome measures Depression outcomes (measured with the Beck Depression Inventory or Center for Epidemiologic Studies Depression Scale), and the effect of initial depression severity on the effects of low intensity interventions.Results Although patients were referred for low intensity interventions, many had moderate to severe depression at baseline. We found a significant interaction between baseline severity and treatment effect (coefficient −0.1 (95% CI −0.19 to −0.002)), suggesting that patients who are more severely depressed at baseline demonstrate larger treatment effects than those who are less severely depressed. However, the magnitude of the interaction (equivalent to an additional drop of around one point on the Beck Depression Inventory for a one standard deviation increase in initial severity) was small and may not be clinically significant.Conclusions The data suggest that patients with more severe depression at baseline show at least as much clinical benefit from low intensity interventions as less severely depressed patients and could usefully be offered these interventions as part of a stepped care model.
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| 13. |
- Breedvelt, Josefien J. F., et al.
(author)
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An individual participant data meta-analysis of psychological interventions for preventing depression relapse
- 2024
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In: Nature Mental Health. - 2731-6076. ; 2:2, s. 154-163
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Journal article (peer-reviewed)abstract
- Major depressive disorder is a leading cause of disability worldwide; identifying effective strategies to prevent depression relapse is crucial. This individual participant data meta-analysis addresses whether and for whom psychological interventions can be recommended for relapse prevention of major depressive disorder. One- and two-stage individual patient data meta-analyses were conducted on 14 randomized controlled trials (N = 1,720). The relapse risk over 12 months was substantially lower for those who received a psychological intervention versus treatment as usual, antidepressant medication, or evaluation-only control (hazard ratio, 0.60; 95% confidence interval, 0.48–0.74). The number of previous depression episodes moderated the treatment effect, with psychological interventions demonstrating greater efficacy for patients with three or more previous episodes. Our results suggest that adding psychological interventions to current treatment to prevent depression relapse is recommended. For patients at lower risk of relapse, less-intensive approaches may be indicated.
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| 14. |
- Carlbring, Per, et al.
(author)
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All at once or one at a time? : a randomized controlled trial comparing two ways to deliver bibliotherapy for panic Disorder
- 2011
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In: Cognitive Behaviour Therapy. - Routledge : Routledge, Taylor and Francis Group. - 1650-6073 .- 1651-2316. ; 40:33, s. 228-235
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Journal article (peer-reviewed)abstract
- Bibliotherapy is potentially effective in the treatment of panic disorder (PD). A still unanswered question is whether pacing is important. This study was designed to test whether there is a difference between being assigned a full book as therapy and receiving one individual chapter every week (i.e. pacing). A total of 28 participants were randomized to either 10 paced chapters or one book with 10 chapters. To maximize compliance, short weekly telephone calls were added in both conditions ( M¼17.8 min,SD¼4.2). Both treatments showed promising results, with effects maintained up to 2 years and with within-group effect sizes (Cohen’s d) between 0.95 and 1.11. Pretreatment ratings of credibility were positively correlated with the change scores at both posttest and 2-year follow-up for three panic measures. Pacing of text material in bibliotherapy for PD is not needed, and all material can be provided at once when the treatment is guided by a therapist.
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| 15. |
- Carlbring, Per, et al.
(author)
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Consensus statement on defining and measuring negative effects of Internet interventions
- 2014
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Conference paper (peer-reviewed)abstract
- Background: Internet interventions have great potential for alleviating emotional distress, promoting mental health, and enhancing well-being. Numerous clinical trials have demonstrated their effectiveness for a number of psychiatric conditions, and interventions delivered via the Internet will likely become a common alternative to face-to-face treatment. Meanwhile, research has paid little attention to the negative effects associated with treatment, warranting further investigation of the possibility that some patients might deteriorate or encounter adverse events despite receiving best available care. Evidence from research of face-to-face treatment suggests that negative effects afflict 5-10% of all patients undergoing treatment in terms of deterioration.Objective: There is currently a lack of consensus on how to define and measure negative effects in psychotherapy research in general, leaving researchers without practical guidelines for monitoring and reporting negative effects in clinical trials. The current study therefore sought out to provide recommendations that could promote the study of negative effects in Internet interventions with the aim of increasing the knowledge of its occurrence and characteristics.Methods: Ten experts in the field of Internet interventions were invited to participate and share their perspective on how to explore negative effects, using the Delphi technique to facilitate a dialogue and reach an agreement. The authors discuss the importance of conducting research on negative effects in order to further the understanding of its incidence and different features.Results: Suggestions on how to classify and measure negative effects in Internet interventions are proposed, involving methods from both quantitative and qualitative research. Potential mechanisms underlying negative effects are also discussed, differentiating common factors shared with face-to-face treatments from those unique to treatments delivered via the Internet.Conclusions: We conclude that negative effects are to be expected and need to be acknowledged to a greater extent, advising researchers to systematically probe for negative effects whenever conducting clinical trials involving Internet interventions, as well as to share their findings in scientific journals.
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| 16. |
- Carlbring, Per, et al.
(author)
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Internet-Based vs. Face-to-Face CBT : Systematic Review and Meta-Analysis
- 2018
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Conference paper (peer-reviewed)abstract
- During the last two decades, Internet-delivered cognitive behavior therapy (ICBT) has been tested in hundreds of randomized controlled trials, often with promising results. However, the control groups were often waitlist, care-as-usual or attention control. Hence, little is known about the relative efficacy of ICBT as compared to face-to-face cognitive behavior therapy (CBT). In addition, the long-term effects of ICBT is largely unknown.In this presentation a systematic review and meta-analysis, which included 1418 participants, will be presented. Out of the 2078 articles screened, a total of 20 studies met all inclusion criteria. These included studies on social anxiety disorder, panic disorder, depression, body dissatisfaction etc. Results showed a pooled effect size at post-treatment of Hedges g = 0.05 (95% CI, -0.09 to 0.20), indicating that ICBT and face-to-face treatment produced equivalent overall effects.We also reviewed studies in which the long-term effects of guided ICBT were investigated. Following a new set of literature searches in PubMed and other sources meta-analytic statistics were calculated for 14 studies involving a total of 902 participants, and an average follow-up period of three years. The duration of the actual treatments was usually short (8-15 weeks). The pre-to follow-up (>2 yrs) effect size was Hedge’s g = 1.52, but with a significant heterogeneity. The average symptom improvement across studies was 50%.While the overall results indicate equivalence, there have been few studies of the individual psychiatric and somatic conditions so far, and for the majority, guided ICBT has not been compared against face-to-face treatment. Thus, more research, preferably with larger sample sizes, is needed to establish the general equivalence of the two treatment formats. While effects may be overestimated, it is likely that therapist-supported ICBT can have enduring effects.
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| 17. |
- Carlbring, Per, et al.
(author)
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Internet-based vs. face-to-face cognitive behavior therapy for psychiatric and somatic disorders : an updated systematic review and meta-analysis
- 2018
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In: Cognitive Behaviour Therapy. - : Routledge. - 1650-6073 .- 1651-2316. ; 47:1, s. 1-18
-
Research review (peer-reviewed)abstract
- During the last two decades, Internet-delivered cognitive behavior therapy (ICBT) has been tested in hundreds of randomized controlled trials, often with promising results. However, the control groups were often waitlisted, care-as-usual or attention control. Hence, little is known about the relative efficacy of ICBT as compared to face-to-face cognitive behavior therapy (CBT). In the present systematic review and meta-analysis, which included 1418 participants, guided ICBT for psychiatric and somatic conditions were directly compared to face-to-face CBT within the same trial. Out of the 2078 articles screened, a total of 20 studies met all inclusion criteria. Results showed a pooled effect size at post-treatment of Hedges g = .05 (95% CI, -.09 to .20), indicating that ICBT and face-to-face treatment produced equivalent overall effects. Study quality did not affect outcomes. While the overall results indicate equivalence, there have been few studies of the individual psychiatric and somatic conditions so far, and for the majority, guided ICBT has not been compared against face-to-face treatment. Thus, more research, preferably with larger sample sizes, is needed to establish the general equivalence of the two treatment formats.
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| 18. |
- Carlbring, Per, et al.
(author)
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Internet-based vs. face-to-face cognitive behavior therapy for psychiatric and somatic disorders : An updated systematic review and meta-analysis
- 2017
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Conference paper (peer-reviewed)abstract
- During the last two decades, Internet-delivered cognitive behavior therapy (ICBT) has been tested in hundreds of randomized controlled trials, often with promising results. However, the control groups were often waitlist, care-as-usual or attention control. Hence, little is known about the relative efficacy of ICBT as compared to face-to-face cognitive behavior therapy (CBT). In the present systematic review and meta-analysis, which included 1418 participants, guided ICBT for psychiatric and somatic conditions were directly compared to face-to-face CBT within the same trial. Out of the 2078 articles screened, a total of 20 studies met all inclusion criteria. These included three studies on social anxiety disorder, three on panic disorder, four on depression, two on body dissatisfaction, two on insomnia, two on tinnitus, one on male sexual dysfunction, one on spider phobia, one on snake phobia, and one on fibromyalgia. Half of the face-to-face CBT treatments were administered in an individual format, and the other half were administered in a group format. Results showed a pooled effect size at post-treatment of Hedges g = 0.05 (95% CI, -0.09 to 0.20), indicating that ICBT and face-to-face treatment produced equivalent overall effects. Study quality did not affect outcomes. While the overall results indicate equivalence, there have been few studies of the individual psychiatric and somatic conditions so far, and for the majority, guided ICBT has not been compared against face-to-face treatment. Thus, more research, preferably with larger sample sizes, is needed to establish the general equivalence of the two treatment formats.
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| 19. |
- Cristea, Ioana A, et al.
(author)
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The effects of cognitive behavior therapy for adult depression on dysfunctional thinking : A meta-analysis.
- 2015
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In: Clinical Psychology Review. - : Elsevier BV. - 0272-7358 .- 1873-7811. ; 42, s. 62-71
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Journal article (peer-reviewed)abstract
- BACKGROUND: It is not clear whether cognitive behavior therapy (CBT) works through changing dysfunctional thinking. Although several primary studies have examined the effects of CBT on dysfunctional thinking, no meta-analysis has yet been conducted.METHOD: We searched for randomized trials comparing CBT for adult depression with control groups or with other therapies and reporting outcomes on dysfunctional thinking. We calculated effect sizes for CBT versus control groups, and separately for CBT versus other psychotherapies and respectively, pharmacotherapy.RESULTS: 26 studies totalizing 2002 patients met inclusion criteria. The quality of the studies was less than optimal. We found a moderate effect of CBT compared to control groups on dysfunctional thinking at post-test (g=0.50; 95% CI: 0.38-0.62), with no differences between the measures used. This result was maintained at follow-up (g=0.46; 95% CI: 0.15-0.78). There was a strong association between the effects on dysfunctional thinking and those on depression. We found no significant differences between CBT and other psychotherapies (g=0.17; p=0.31), except when restrict in outcomes to the Dysfunctional Attitudes Scale (g=0.29). There also was no difference between CBT and pharmacotherapy (g=0.04), though this result was based on only 4 studies.DISCUSSION: While CBT had a robust and stable effect on dysfunctional thoughts, this was not significantly different from what other psychotherapies or pharmacotherapy achieved. This result can be interpreted as confirming the primacy of cognitive change in symptom change, irrespective of how it is attained, as well as supporting the idea that dysfunctional thoughts are simply another symptom that changes subsequent to treatment.
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| 20. |
- Cuijpers, Pim, et al.
(author)
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A Meta-Analysis of Cognitive-Behavioural Therapy for Adult Depression, Alone and in Comparison With Other Treatments
- 2013
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In: Canadian journal of psychiatry. - : Canadian Psychiatric Association (Association des psychiatres du Canada). - 0706-7437. ; 58:7, s. 376-385
-
Research review (peer-reviewed)abstract
- Objective: No recent meta-analysis has examined the effects of cognitive-behavioural therapy (CBT) for adult depression. We decided to conduct such an updated meta-analysis. less thanbrgreater than less thanbrgreater thanMethods: Studies were identified through systematic searches in bibliographical databases (PubMed, PsycINFO, Embase, and the Cochrane library). We included studies examining the effects of CBT, compared with control groups, other psychotherapies, and pharmacotherapy. less thanbrgreater than less thanbrgreater thanResults: A total of 115 studies met inclusion criteria. The mean effect size (ES) of 94 comparisons from 75 studies of CBT and control groups was Hedges g = 0.71 (95% CI 0.62 to 0.79), which corresponds with a number needed to treat of 2.6. However, this may be an overestimation of the true ES as we found strong indications for publication bias (ES after adjustment for bias was g = 0.53), and because the ES of higher-quality studies was significantly lower (g = 0.53) than for lower-quality studies (g = 0.90). The difference between high-and low-quality studies remained significant after adjustment for other study characteristics in a multivariate meta-regression analysis. We did not find any indication that CBT was more or less effective than other psychotherapies or pharmacotherapy. Combined treatment was significantly more effective than pharmacotherapy alone (g = 0.49). less thanbrgreater than less thanbrgreater thanConclusions: There is no doubt that CBT is an effective treatment for adult depression, although the effects may have been overestimated until now. CBT is also the most studied psychotherapy for depression, and thus has the greatest weight of evidence. However, other treatments approach its overall efficacy.
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| 21. |
- Cuijpers, Pim, et al.
(author)
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Adding psychotherapy to antidepressant medication in depression and anxiety disorders : a meta-analysis
- 2014
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In: World Psychiatry. - : John Wiley & Sons. - 1723-8617 .- 2051-5545. ; 13:1, s. 56-67
-
Journal article (peer-reviewed)abstract
- We conducted a meta-analysis of randomized trials in which the effects of treatment with antidepressant medication were compared to the effects of combined pharmacotherapy and psychotherapy in adults with a diagnosed depressive or anxiety disorder. A total of 52 studies (with 3,623 patients) met inclusion criteria, 32 on depressive disorders and 21 on anxiety disorders (one on both depressive and anxiety disorders). The overall difference between pharmacotherapy and combined treatment was Hedges' g = 0.43 (95% CI: 0.31-0.56), indicating a moderately large effect and clinically meaningful difference in favor of combined treatment, which corresponds to a number needed to treat (NNT) of 4.20. There was sufficient evidence that combined treatment is superior for major depression, panic disorder, and obsessive-compulsive disorder (OCD). The effects of combined treatment compared with placebo only were about twice as large as those of pharmacotherapy compared with placebo only, underscoring the clinical advantage of combined treatment. The results also suggest that the effects of pharmacotherapy and those of psychotherapy are largely independent from each other, with both contributing about equally to the effects of combined treatment. We conclude that combined treatment appears to be more effective than treatment with antidepressant medication alone in major depression, panic disorder, and OCD. These effects remain strong and significant up to two years after treatment. Monotherapy with psychotropic medication may not constitute optimal care for common mental disorders.
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| 22. |
- Cuijpers, Pim, et al.
(author)
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Adding Psychotherapy to Pharmacotherapy in the Treatment of Depressive Disorders in Adults : A Meta-Analysis
- 2009
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In: JOURNAL OF CLINICAL PSYCHIATRY. - 0160-6689 .- 1555-2101. ; 70:9, s. 1219-1229
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Journal article (peer-reviewed)abstract
- Objective: A considerable number of studies has examined whether adding psychotherapy to pharmacotherapy results in stronger effects than pharmacotherapy alone. However, earlier meta-analyses in this field have included only a limited number of available studies and did not conduct extended subgroup analyses to examine possible sources of heterogeneity. Data Sources: We used a database derived from a comprehensive literature search in Pubmed, PsycINFO, EMBASE, and the Cochrane Central Register of Controlled Trials for studies published from 1966 to January 2008 that examined the psychological treatment of depression. The abstracts of these studies were identified by combining terms indicative of psychological treatment and depression. Study Selection: We included randomized trials in which the effects of a pharmacologic treatment were compared to the effects of a combined pharmacologic and psychological treatment in adults with a depressive disorder. Data Extraction: For each of the studies, we calculated a standardized mean effect size indicating the difference between pharmacotherapy and the combined treatment at posttest. We also coded major characteristics of the population, the interventions, and the quality and design of the study. Data Synthesis: Twenty-five randomized trials, with a total of 2,036 patients, were included. A mean effect size of d=0.31 (95% CI, 0.20 similar to 0.43) was found for the 25 included studies, indicating a small effect in favor of the combined treatment over pharmacotherapy alone. Studies aimed at patients with dysthymia resulted in significantly lower effect sizes compared to studies aimed at patients with major depression, a finding that suggests that the added value of psychotherapy is less in patients with dysthymia. The dropout rate was significantly lower in the combined treatment group compared to the pharmacotherapy only group (OR = 0.65; 95% CI, 0.50 similar to 0.83). Conclusions: Psychotherapy seems to have an additional value compared to pharmacotherapy alone for depression.
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| 23. |
- Cuijpers, Pim, et al.
(author)
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Are Psychological and Pharmacologic Interventions Equally Effective in the Treatment of Adult Depressive Disorders? : A Meta-Analysis of Comparative Studies
- 2008
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In: Journal of Clinical Psychiatry. - 0160-6689 .- 1555-2101. ; 69:11, s. 1675-1685
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Journal article (peer-reviewed)abstract
- Objective: A large number of studies suggest that both psychological and pharmacologic therapies are effective in the treatment of mild-to-moderate depressive disorders. Whether both types of intervention are equally effective has not been established definitively. Data Sources: A database was developed through a comprehensive literature search (from 1966 to May 2007) in which 6947 abstracts in PubMed (1244 abstracts), PsycINFO (1736), EMBASE (1911), and the Cochrane Central Register of Controlled Trials (2056) were examined. Abstracts were identified by combining terms indicative of psychological treatment and depression (both MeSH terms and text words). For this database, the primary studies from 22 meta-analyses of psychological treatment for depression were also collected. Study Selection: For the current study, the abstracts of 832 studies were examined. Data Extraction: Thirty randomized trials were included in a meta-analysis that compared the effects of a psychological treatment for 3178 adults with a diagnosed depressive disorder (major depressive disorder, dysthymia, minor depressive disorder) with the effects of a pharmacologic treatment. Data Synthesis: In studies of patients with dysthymia, pharmacotherapy was significantly more effective than psychotherapy (d = -0.28, 95% CI = -0.47 to -0.10). In patients with major depressive disorder, treatments with selective serotonin reuptake inhibitors (SSRIs) were significantly more effective than psychological treatments, while treatment with other antidepressants did not differ significantly. Subgroup and metaregression analyses did not show that pretest severity of depressive symptoms was associated with differential effects of psychological and pharmacologic treatments of major depressive disorder. Dropout rates were smaller in psychological interventions compared with pharmacologic treatments (odds ratio = 0.66, 95% CI = 0.47 to 0.92). Conclusions: Pharmacologic treatments may be more effective than psychological interventions in the treatment of dysthymia. Pharmacologic treatment with SSRIs may also be more effective in the treatment of major depressive disorder, although these differences are small and probably have little meaning from a clinical point of view. We can conclude that both psychological and pharmacologic therapies are effective in the treatment of depressive disorders and that each has its own merits.
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| 24. |
- Cuijpers, Pim, et al.
(author)
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Continuous and dichotomous outcomes in studies of psychotherapy for adult depression: A meta-analytic comparison
- 2010
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In: JOURNAL OF AFFECTIVE DISORDERS. - : Elsevier Science B.V., Amsterdam.. - 0165-0327 .- 1573-2517. ; 126:3, s. 349-357
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Research review (peer-reviewed)abstract
- Background: In treatment research on depressive disorders, outcomes can be based on continuous outcomes but also on dichotomous outcomes. Although it is possible to convert the two types of outcomes to each other, it has not been tested whether this results in systematic differences. Method: We selected studies on psychotherapy for adult depression from an existing database, in which both continuous and dichotomous outcomes were presented. We calculated effect sizes using both types of outcomes, and compared the results. Results: Although there were considerable differences between the two types of outcomes in individual studies, both types of outcomes resulted in very similar pooled effect sizes. The pooled effect size based on the continuous outcome were somewhat more conservative (d = 0.59: OR = 2.92) than the one based on the dichotomous outcome (d = 0.64; OR = 3.17). Heterogeneity was higher in the analyses based on the continuous outcomes than in those based on the dichotomous outcomes. Sensitivity analyses and subgroup analyses confirmed that the pooled effect sizes were very similar, that the effect sizes were somewhat smaller when the continuous outcomes are used, and that heterogeneity was higher in the analyses based on the continuous outcomes. Conclusion: Overall, the two types of outcomes result in comparable pooled effect sizes and can both be used in meta-analyses. However, the results of the two types of outcomes should not be used interchangeably, because there may be systematic differences in heterogeneity and subgroup analyses.
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| 25. |
- Cuijpers, Pim, et al.
(author)
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Does cognitive behaviour therapy have an enduring effect that is superior to keeping patients on continuation pharmacotherapy? A meta-analysis
- 2013
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In: BMJ Open. - : BMJ Publishing Group: BMJ Open / BMJ Journals. - 2044-6055. ; 3:4, s. 2542-
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Journal article (peer-reviewed)abstract
- Objectives Although cognitive behaviour therapy (CBT) and pharmacotherapy are equally effective in the acute treatment of adult depression, it is not known how they compare across the longer term. In this meta-analysis, we compared the effects of acute phase CBT without any subsequent treatment with the effects of pharmacotherapy that either were continued or discontinued across 6-18 months of follow-up. Design We conducted systematic searches in bibliographical databases to identify relevant studies, and conducted a meta-analysis of studies meeting inclusion criteria. Setting Mental healthcare. Participants Patients with depressive disorders. Interventions CBT and pharmacotherapy for depression. Outcome measures Relapse rates at long-term follow-up. Results 9 studies with 506 patients were included. The quality was relatively high. Short-term outcomes of CBT and pharmacotherapy were comparable, although drop out from treatment was significantly lower in CBT. Acute phase CBT was compared with pharmacotherapy discontinuation during follow-up in eight studies. Patients who received acute phase CBT were significantly less likely to relapse than patients who were withdrawn from pharmacotherapy (OR=2.61, 95% CI 1.58 to 4.31, pless than0.001; numbers-needed-to-be-treated, NNT=5). The acute phase CBT was compared with continued pharmacotherapy at follow-up in five studies. There was no significant difference between acute phase CBT and continued pharmacotherapy, although there was a trend (pless than0.1) indicating that patients who received acute phase CBT may be less likely to relapse following acute treatment termination than patients who were continued on pharmacotherapy (OR=1.62, 95% CI 0.97 to 2.72; NNT=10). Conclusions We found that CBT has an enduring effect following termination of the acute treatment. We found no significant difference in relapse after the acute phase CBT versus continuation of pharmacotherapy after remission. Given the small number of studies, this finding should be interpreted with caution pending replication.
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