Background: The aim of this randomized controlled trial was to investigate the effects of conventional face-to-face group cognitive behavioral therapy (GCBT) and an Internet-delivered guided self-help treatment (Internet-based CBT, ICBT) on tinnitus distress. Methods: A total of 128 adults with at least mild levels of chronic tinnitus distress were randomly assigned to GCBT (n = 43), ICBT (n = 41), or a web-based discussion forum (DF) that served as a control condition (n = 44). Standardized self-report measures [the Tinnitus Handicap Inventory (THI), Mini-Tinnitus Questionnaire (Mini-TQ), Hospital Anxiety and Depression Scale, Insomnia Severity Index and Tinnitus Acceptance Questionnaire] were completed at the pre- and post-assessments and at the 6-month follow-up. Results: Repeated-measures ANOVAs revealed significant time × group interaction effects on the primary outcomes (THI and Mini-TQ scores) in favor of both CBT interventions compared with the DF at post-assessment (0.56 ≤ g ≤ 0.93; all p ≤ 0.001). There were no significant differences between GCBT and ICBT (all p > 0.05) and the treatment effects remained stable at the 6-month follow-up. Conclusions: This study provides evidence that ICBT might be an equally effective alternative to conventional CBT in the management of chronic tinnitus. Despite encouraging results, further research is necessary to determine the actual potential of ICBT as a viable alternative to CBT, and under which circumstances it is effective.
Objective This study (ID: NCT01205906) compared the impact of the working alliance between the therapist and the client on treatment outcome in a group and an Internet-based cognitive behavior therapy (GCBT vs. ICBT) for chronic tinnitus. Methods The Working Alliance Inventory — Short Revised (WAI-SR, scale range: 1–5) was administered to 26 GCBT and 38 ICBT participants after treatment weeks 2, 5, and 9, and the Tinnitus Handicap Inventory (THI) before and after the treatment. Results High alliance ratings were found in both ICBT (WAI-SR total scores at week 9: M = 3.59, SD = 0.72) and GCBT (WAI-SR total scores at week 9: M = 4.20, SD = 0.49), but significantly higher ratings occurred in GCBT on most WAI-SR scales (ps < .01). Significant time × group interactions for most WAI-SR scales indicated differences in alliance growth patterns between the treatments (ps < .001). Residual gain scores for the therapy outcome measure ‘tinnitus distress’ were significantly correlated with the agreement on treatment tasks between therapist and client in ICBT (r = .40, p = .014) and with the affective therapeutic bond in GCBT (r = .40, p = .043) at mid-treatment (week 5). Conclusion More time was needed to build a strong alliance in ICBT although GCBT yielded generally higher alliance ratings. Moreover, different aspects of the therapeutic alliance might be important for treatment success in ICBT versus GCBT
Both forms of CBT are successful in reducing dysfunctional tinnitus-related cognitions. Catastrophizing significantly predicted a less favorable outcome regarding emotional tinnitus distress in ICBT. Clinical implications of these results are described. Dysfunctional cognitions could be targeted more intensively in therapy and in future research on tinnitus.
Dysfunctional cognitions can play an important role in the degree of tinnitus distress. Catastrophic and avoidant thoughts contribute to the explanation of depression among tinnitus patients. The T-Cog is a reliable and valid questionnaire for the assessment of different dimensions of cognitions. Its use could provide information for identifying tinnitus patients who are particularly suitable for cognitive-behavioral therapy.
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