| 1. |
- Andersson, E, et al.
(författare)
-
Internet-based cognitive behaviour therapy for obsessive-compulsive disorder: a randomized controlled trial
- 2012
-
Ingår i: Psychological Medicine. - : Cambridge University Press (CUP). - 0033-2917 .- 1469-8978. ; 42:10, s. 2193-2203
-
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.
|
|
| 2. |
- Enander, J, et al.
(författare)
-
Internet administration of the Dimensional Obsessive-Compulsive Scale: A psychometric evaluation
- 2012
-
Ingår i: Journal of Obsessive-Compulsive and Related Disorders. - : Elsevier. - 2211-3649. ; 1:4, s. 325-330
-
Tidskriftsartikel (refereegranskat)abstract
- The Dimensional Obsessive-Compulsive Scale (DOCS) was designed to address the current limitations of existing obsessive-compulsive (OC) symptom measures and is a self-report questionnaire that assesses the severity of the four most empirically supported OC symptom dimensions. The aim of this study was to examine the psychometric properties of a Swedish version of the DOCS when administered via the Internet. Internal consistency, factor structure, and convergent and discriminant validity were examined in a sample consisting of 101 patients diagnosed with obsessive-compulsive disorder. The DOCS sensitivity to treatment effects were examined in a sample consisting of 48 patients treated with Internet-delivered cognitive behavioral therapy were the main intervention was exposure with response prevention. Results showed that the internal consistency was high. The DOCS also showed adequate convergent and discriminant validity, as well as fair sensitivity to treatment effects. The factor analysis supported the DOCS four-factor solution. In summary, the results from the present study give initial support that the DOCS can be administered via the Internet with adequate psychometric properties. © 2012 Elsevier Ltd.
|
|
| 3. |
- Hedman, E., et al.
(författare)
-
Clinical and genetic outcome determinants of Internet- and group-based cognitive behavior therapy for social anxiety disorder
- 2012
-
Ingår i: Acta Psychiatrica Scandinavica. - : John Wiley and Sons. - 0001-690X .- 1600-0447. ; 126:2, s. 126-136
-
Tidskriftsartikel (refereegranskat)abstract
- Hedman E, Andersson E, Ljotsson B, Andersson G, Andersson E, Schalling M, Lindefors N, Ruck C. Clinical and genetic outcome determinants of Internet- and group-based cognitive behavior therapy for social anxiety disorder (SAD). Objective: No study has investigated clinical or genetic predictors and moderators of Internet-based cognitive behavior therapy (ICBT) compared with cognitive behavioral group therapy for (CBGT) for SAD. Identification of predictors and moderators is essential to the clinician in deciding which treatment to recommend for whom. We aimed to identify clinical and genetic (5-HTTLPR, COMTval158met, and BDNFval66met) predictors and moderators of ICBT and CBGT. Method: We performed three types of analyses on data from a sample comprising participants (N = 126) who had undergone ICBT or CBGT in a randomized controlled trial. Outcomes were i) end state symptom severity, ii) SAD diagnosis, and iii) clinically significant improvement. Results: The most stable predictors of better treatment response were working full time, having children, less depressive symptoms, higher expectancy of treatment effectiveness, and adhering to treatment. None of the tested gene polymorphisms were associated with treatment outcome. Comorbid general anxiety and depression were moderators meaning that lower levels were associated with a better treatment response in ICBT but not in CBGT. Conclusion: We conclude that demographic factors, symptom burden, adherence, and expectations may play an important role as predictors of treatment outcome. The investigated gene polymorphisms do not appear to make a difference.
|
|
| 4. |
- 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.
|
|
| 5. |
- Hedman, E., et al.
(författare)
-
Effectiveness of Internet-based cognitive behaviour therapy for depression in routine psychiatric care
- 2014
-
Ingår i: Journal of Affective Disorders. - : Elsevier. - 0165-0327 .- 1573-2517. ; 155:1, s. 49-58
-
Tidskriftsartikel (refereegranskat)abstract
- Background: Efficacy of guided Internet-based cognitive behaviour therapy (ICBT) for depression has been demonstrated in several randomised controlled trials. Knowledge on the effectiveness of the treatment, i.e. how it works when delivered within routine care, is however scarce. The aim of this study was to investigate the effectiveness of ICBT for depression.Methods: We conducted a cohort study investigating all patients (N =1203) who had received guided ICBT for depression between 2007 and 2013 in a routine care setting at an outpatient psychiatric clinic providing Internet-based treatment The primary outcome measure was the Montgomery Asberg Depression Rating Scale-Self rated (MADRS-S).Results: Patients made large improvements from pre-treatment assessments to post-treatment on the primary outcome (effect size d on the MADRS-S = 1.27, 99% CI, 1.14-1.39). Participants were significantly improved in terms of suicidal ideation and sleep difficulties improvements were sustained at 6-month follow-up.Limitations: Attrition was rather large at 6-month follow-up. However, additional data was collected through telephone interviews with dropouts and advanced statistical models indicated that missing data did not bias the findings.Conclusions: ICBT for depression can be highly effective when delivered within the context of routine psychiatric care. This study suggests that the effect sizes are at least as high when the treatment is delivered in routine psychiatric care by qualified staff as when delivered in a controlled trial setting.
|
|
| 6. |
- Hedman, E., et al.
(författare)
-
Effectiveness of Internet-based cognitive behaviour therapy for panic disorder in routine psychiatric care
- 2013
-
Ingår i: Acta Psychiatrica Scandinavica. - : Wiley. - 0001-690X .- 1600-0447. ; 128:6, s. 457-467
-
Tidskriftsartikel (refereegranskat)abstract
- ObjectiveGuided Internet-based cognitive behaviour therapy (ICBT) for panic disorder has been shown to be efficacious in several randomized controlled trials. However, the effectiveness of the treatment when delivered within routine psychiatric care has not been studied. The aim of this study was to investigate the effectiveness of ICBT for panic disorder within the context of routine psychiatric care. MethodWe conducted a cohort study investigating all patients (n=570) who had received guided ICBT for panic disorder between 2007 and 2012 in a routine care setting at an out-patient psychiatric clinic providing Internet-based treatment. The primary outcome measure was the Panic Disorder Severity Scale-Self-report (PDSS-SR). ResultsParticipants made large improvements from screening and pretreatment assessments to posttreatment (Cohen's d range on the PDSS-SR=1.07-1.55). Improvements were sustained at 6-month follow-up. ConclusionThis study suggests that ICBT for panic disorder is as effective when delivered in a routine care context as in the previously published randomized controlled trials.
|
|
| 7. |
- Bergström, Jan, 1976-, et al.
(författare)
-
An open study of the effectiveness of Internet treatment for panic disorder delivered in a psychiatric setting
- 2009
-
Ingår i: Nordic Journal of Psychiatry. - : Informa UK Limited. - 0803-9488 .- 1502-4725. ; 63:1, s. 44-50
-
Tidskriftsartikel (refereegranskat)abstract
- Panic Disorder with or without or without agoraphobia (PD/A) is common and can be treated effectively with SSRI medication or cognitive behavior therapy (CBT). There is however a great lack of access to CBT services, which has motivated the development of self-help approaches requiring less therapist contact. A novel treatment modality in this field, showing efficacy in several randomised trials but until now not evaluated within the context of regular psychiatric care, is Internet-based treatment. The present study evaluated the effectiveness of Internet-based CBT for 20 consecutively referred PD patients in a psychiatric setting. At post-treatment, 94% of patients no longer met DSM-IV criteria for PD (82% at 6-month follow up). The within-group effect sizes (for the main outcome PDSS; Panic Disorder Severity Scale) were Cohens d=2.5 (pre- to posttreatment) and 2.8 (pre-treatment to follow up) respectively. The proportion of responders on the PDSS was 75% at posttreatment and 70% at 6-month follow up. These results indicate that Internet-based CBT can be both an effective, feasible and potentially cost-effective alternative within regular psychiatric care for patients with PD.
|
|
| 8. |
|
|
| 9. |
|
|
| 10. |
- Hedman, E., et al.
(författare)
-
Internet administration of self-report measures commonly used in research on social anxiety disorder : a psychometric evaluation
- 2010
-
Ingår i: Computers in human behavior. - : Elsevier BV. - 0747-5632 .- 1873-7692. ; 26:4, s. 736-740
-
Tidskriftsartikel (refereegranskat)abstract
- The Internet has become increasingly popular as a way to administer self-report questionnaires, especially in the field of Internet delivered psychological treatments. Collecting questionnaire data over the Internet has advantages, such as ease of administration, and automated scoring. However, psychometric properties cannot be assumed to be identical to the paper-and-pencil versions. The aim of this study was to test the equivalence of paper-and-pencil and Internet administered versions of self-report questionnaires used in social phobia research. We analyzed data from two trials in which samples were recruited in a similar manner. One sample (N = 64) completed the paper-and-pencil version of questionnaires and the second sample (N = 57) completed the same measures online. We included the Liebowitz Social Anxiety Scale-self-assessment (LSAS-SR), the Social Interaction and Anxiety Scale (SIAS), and the Social Phobia Scale (SPS) as measures of social anxiety. Also included were the Montgomery sberg Depression Rating Scale-self-assessment (MADRS-S), the Beck Anxiety Inventory (BAI), and the Quality of Life Inventory (QOLI). Results showed equivalent psychometric properties across administration formats. Cronbach's α ranged between 0.77 and 0.94. There was an indication of a somewhat higher construct validity when participants filled out questionnaires using paper-and-pencil. We conclude that the LSAS-SR, SIAS, and SPS can be administered via the Internet with maintained psychometric properties.
|
|
