| 1. |
- Hedman, Erik, et al.
(författare)
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Clinical effectiveness and cost-effectiveness of Internet- vs. group-based cognitive behavior therapy for social anxiety disorder : 4-Year follow-up of a randomized trial
- 2014
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Ingår i: Behaviour Research and Therapy. - : Elsevier. - 0005-7967 .- 1873-622X. ; 59, s. 20-29
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Tidskriftsartikel (refereegranskat)abstract
- Social anxiety disorder (SAD) is common, debilitating and associated with high societal costs. The disorder can be effectively treated with Internet-based cognitive behavior therapy (ICBT), but no previous study has investigated the long-term clinical or health economic effects of ICBT for SAD in comparison to an evidence-based control treatment. The aim of the study was to investigate the clinical effectiveness and cost-effectiveness of ICBT compared to cognitive behavioral group therapy (CBGT) four years post-treatment. We conducted a 4-year follow-up study of participants who had received ICBT or CBGT for SAD within the context of a randomized controlled non-inferiority trial. The cost-effectiveness analyses were conducted taking a societal perspective. Participants in both treatment groups made large improvements from baseline to 4-year follow-up on the primary outcome measure (d = 1.34-1.48) and the 95% CI of the mean difference on the primary outcome was well within the non-inferiority margin. ICBT and CBGT were similarly cost-effective and both groups reduced their indirect costs. We conclude that ICBT for SAD yields large sustainable effects and is at least as long-term effective as CBGT. Intervention costs of both treatments are offset by net societal cost reductions in a short time. (C) 2014 Elsevier Ltd. All rights reserved.
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| 2. |
- Hedman, Erik, et al.
(författare)
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Cost-effectiveness of Internet-based cognitive behavior therapy vs. cognitive behavioral group therapy for social anxiety disorder: Results from a randomized controlled trial
- 2011
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Ingår i: Behaviour Research and Therapy. - : Elsevier. - 0005-7967 .- 1873-622X. ; 49:11, s. 729-736
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Tidskriftsartikel (refereegranskat)abstract
- Social anxiety disorder (SAD) is highly prevalent and associated with a substantial societal economic burden, primarily due to high costs of productivity loss. Cognitive behavior group therapy (CBGT) is an effective treatment for SAD and the most established in clinical practice. Internet-based cognitive behavior therapy (ICBT) has demonstrated efficacy in several trials in recent years. No study has however investigated the cost-effectiveness of ICBT compared to CBGT from a societal perspective, i.e. an analysis where both direct and indirect costs are included. The aim of the present study was to investigate the cost-effectiveness of ICBT compared to CBGT from a societal perspective using a prospective design. We conducted a randomized controlled trial where participants with SAD were randomized to ICBT (n = 64) or CBGT (n = 62). Economic data were assessed at pre-treatment, immediately following treatment and six months after treatment. Results showed that the gross total costs were significantly reduced at six-month follow-up, compared to pre-treatment in both treatment conditions. As both treatments were equivalent in reducing social anxiety and gross total costs, ICBT was more cost-effective due to lower intervention costs. We conclude that ICBT can be more cost-effective than CBGT in the treatment of SAD and that both treatments reduce societal costs for SAD.
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| 3. |
- Hedman, Erik, et al.
(författare)
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Predictors of outcome in Internet-based cognitive behavior therapy for severe health anxiety
- 2013
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Ingår i: Behaviour Research and Therapy. - : Elsevier. - 0005-7967 .- 1873-622X. ; 51:10, s. 711-717
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Tidskriftsartikel (refereegranskat)abstract
- Internet-based cognitive behavior therapy (CBT) for severe health anxiety can be effective, but not all patients achieve full remission. Under these circumstances, knowledge about predictors is essential for the clinician in order to make reliable treatment recommendations. The primary aim of this study was to investigate clinical, demographic, and therapy process-related predictors of Internet-based CBT for severe health anxiety. We performed three types of analyses on data from a sample comprising participants (N = 81) who had received Internet-based CBT in a randomized controlled trial. Outcomes were a) end state health anxiety, b) improvement in health anxiety (continuous change scores), and c) clinically significant improvement. Outcomes were assessed at six-month follow-up. The results showed that the most stable predictors of both end state health anxiety and improvement were baseline health anxiety and depressive symptoms. Treatment adherence, i.e. the number of completed treatment modules, also significantly predicted outcome. Notably, health anxiety at baseline was positively associated with symptom improvement while depressive symptoms was negatively related to improvement. Demographic factors were largely without significant impact on end state symptoms or improvement. We conclude that baseline symptom burden and adherence to treatment have strong predictive effects in Internet-based CBT for severe health anxiety.
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| 4. |
- Hedman, Erik, et al.
(författare)
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Sudden gains in internet-based cognitive behaviour therapy for severe health anxiety
- 2014
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Ingår i: Behaviour Research and Therapy. - : Elsevier. - 0005-7967 .- 1873-622X. ; 54, s. 22-29
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Tidskriftsartikel (refereegranskat)abstract
- OBJECTIVE: A sudden gain is defined as a large and stable individual improvement occurring between two consecutive treatment sessions. Sudden gains have been shown to predict better long-term improvement in several treatment studies, including cognitive behavioural therapy for depression and anxiety disorders, but have not been studied in the treatment of health anxiety or any form of internet-based cognitive behavioural therapy. The aim of this study was to investigate the role of sudden gains in internet-based cognitive behavioural therapy for severe health anxiety.METHOD: We examined the occurrence and significance of sudden gains in measures of health anxiety in 81 participants receiving internet-based cognitive behavioural therapy. We compared patients with sudden gains, patients without sudden gains, and patients with gradual gains.RESULTS: Thirteen participants (16%) experienced one sudden gain in health anxiety with individual sudden gains distributed across the treatment. As expected, patients with a sudden gain showed larger improvements than patients without a sudden gain at post-treatment (d = 1.04) and at one-year follow-up (d = 0.91) on measures of health anxiety.CONCLUSIONS: Consistent with previous studies, sudden gains in internet-based cognitive behavioural therapy are associated with significantly larger and stable treatment effects up to one-year follow-up.
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| 5. |
- Kaldo, Viktor, et al.
(författare)
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Guided internet cognitive behavioral therapy for insomnia compared to a control treatment - A randomized trial
- 2015
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Ingår i: Behaviour Research and Therapy. - : Elsevier. - 0005-7967 .- 1873-622X. ; 71, s. 90-100
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Tidskriftsartikel (refereegranskat)abstract
- Aim: To evaluate if internet-delivered Cognitive Behavioral Therapy for insomnia (ICBT-i) with brief therapist support outperforms an active control treatment. Method: Adults diagnosed with insomnia were recruited via media (n = 148) and randomized to either eight weeks of ICBT-i or an active internet-based control treatment. Primary outcome was the insomnia severity index (ISI) assessed before and after treatment, with follow-ups after 6 and 12 months. Secondary outcomes were use of sleep medication, sleep parameters (sleep diary), perceived stress, and a screening of negative treatment effects. Hierarchical Linear Mixed Models were used for intent-to-treat analyses and handling of missing data. Results: ICBT-i was significantly more effective than the control treatment in reducing ISI (Cohen's d = 0.85), sleep medication, sleep efficiency, sleep latency, and sleep quality at post-treatment. The positive effects were sustained. However, after 12 months the difference was no longer significant due to a continuous decrease in ISI among controls, possibly due to their significantly higher utilization of insomnia relevant care after treatment Forty-six negative effects were reported but did not differ between interventions. Conclusions: Supported ICBT-i is more effective than an active control treatment in reducing insomnia severity and treatment gains remain stable one year after treatment (C) 2015 The Authors. Published by Elsevier Ltd.
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| 6. |
- Ljotsson, Brjann, et al.
(författare)
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Internet-delivered exposure and mindfulness based therapy for irritable bowel syndrome - A randomized controlled trial
- 2010
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Ingår i: Behaviour Research and Therapy. - : Elsevier Science B.V., Amsterdam.. - 0005-7967 .- 1873-622X. ; 48:6, s. 531-539
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Tidskriftsartikel (refereegranskat)abstract
- The aim of this study was to investigate if cognitive behavior therapy (cc based on exposure and mindfulness exercises delivered via the Internet would be effective in treating participants with irritable bowel syndrome (IBS). Participants were recruited through self-referral. Eighty-six participants were included in the study and randomized to treatment or control condition (an online discussion forum). One participant was excluded after randomization. The main outcome measure was IBS-symptom severity and secondary measures included IBS-related quality of life. GI-specific anxiety, depression and general functioning. Participants were assessed at pre-treatment, post-treatment and 3 month follow-up (treatment condition only). Four participants (5% of total sample) in the treatment condition did not participate in post-treatment assessment. Participants in the treatment condition reported a 42% decrease and participants in the control group reported a 12% increase in primary IBS-symptoms. Compared to the control condition, participants in the treatment group improved on all secondary outcome measures with a large between group effect size on quality of life (Cohens d - 1.21). We conclude that CBT-based on exposure and mindfulness delivered via the Internet can be effective in treating IBS-patients, alleviating the total burden of symptoms and increasing quality of life.
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| 7. |
- Ljótsson, Brjánn, et al.
(författare)
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Long-term follow-up of internet-delivered exposure and mindfulness based treatment for irritable bowel syndrome
- 2011
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Ingår i: Behaviour Research and Therapy. - : Elsevier BV. - 0005-7967 .- 1873-622X. ; 49:1, s. 58-61
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Tidskriftsartikel (refereegranskat)abstract
- We conducted a follow-up of a previously reported study of internet-delivered cognitive behavior therapy (CBT) for IBS, based on exposure and mindfulness exercises (Ljótsson et al. (2010). Internet-delivered exposure and mindfulness based therapy for irritable bowel syndrome - a randomized controlled trial. Behaviour Research and Therapy, 48, 531-539). Seventy-five participants from the original sample of 85 (88%) reported follow-up data at 15-18 months (mean 16.4 months) after completing treatment. The follow-up sample included participants from both the original study's treatment group and waiting list after it had been crossed over to treatment. Intention-to-treat analysis showed that treatment gains were maintained on all outcome measures, including IBS symptoms, quality of life, and anxiety related to gastrointestinal symptoms, with mainly large effect sizes (within-group Cohen's d= 0.78-1.11). A total of fifty participants (59% of the total original sample; 52% of the original treatment group participants and 65% of the original waiting list participants) reported adequate relief of symptoms. Improvements at follow-up were more pronounced for the participants that had completed the full treatment and maintenance of improvement did not seem to be dependent on further treatment seeking. This study suggests that internet-delivered CBT based on exposure and mindfulness has long-term beneficial effects for IBS-patients.
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