Predicting response to transdiagnostic iCBT for emotional disorders from patient and therapist involvement
Resumen: Background
Transdiagnostic iCBT has been shown to be effective for the treatment of emotional disorders. Less is known about the optimal level of therapist and patient involvement in these interventions. Specific characteristics of Internet-delivered interventions include treatment adherence (e.g., amount of review of the materials) and guidance (e.g., amount of therapist support). Exploring the importance of these elements in treatment outcome may help to maximize the efficiency of Internet-delivered psychological interventions.
Aim
In this study, we aimed to analyze the relationship between patient and therapist involvement (i.e., platform usage and amount of therapist guidance) in a sample of patients with emotional disorders who received transdiagnostic iCBT in Spanish public specialized mental healthcare services.
Method
This is a secondary analysis of a randomized controlled trial. The sample included 63 patients who completed transdiagnostic iCBT for emotional disorders. Platform usage metrics included number of logins into the platform and number of times the participants reviewed the modules. Therapist guidance was measured as the number of support phone calls with a therapist and their total duration (minutes). Logistic regressions and ROC analyses were performed to explore the predictive value of platform usage and therapist guidance in symptom reduction. Clinical outcomes included depressive and anxiety symptoms assessed at baseline and post-intervention. The bivariate relationship between the platform usage and therapist guidance variables was also explored.
Results
Overall, platform usage and therapist guidance were not associated with symptom improvement. However, the patient and therapist involvement parameters were intercorrelated. Specifically, the number of calls and their duration were associated with a greater number of logins (r = 0.61; p < .001) and more frequent reviews of the modules (0.46 ≤ r ≤ 0.60; p < .001). Higher baseline depression and anxiety were, respectively, associated with greater improvements in depression (r = −0.37, p = .003) and anxiety after treatment completion (r = −0.48, p < .001).
Discussion
The results suggest that there is no reliable cut-off point for platform usage and therapist guidance in predicting optimal symptom reduction. However, significant associations were found between platform usage and guidance variables that warrant additional research. More research on this topic is necessary to further clarify the role of these and other platform usage and guidance variables in Internet-delivered iCBT outcomes.

Idioma: Inglés
DOI: 10.1016/j.invent.2021.100420
Año: 2021
Publicado en: INTERNET INTERVENTIONS-THE APPLICATION OF INFORMATION TECHNOLOGY IN MENTAL AND BEHAVIOURAL HEALTH 25 (2021), 100420 [9 pp.]
ISSN: 2214-7829

Factor impacto CITESCORE: 5.7 - Medicine (Q1)

Financiación: info:eu-repo/grantAgreement/ES/ISCIII/CB06-03-0052
Financiación: info:eu-repo/grantAgreement/ES/MEC/FPU13-00576
Tipo y forma: Artículo (Versión definitiva)
Área (Departamento): Área Person.Eval.Trat.Psicoló. (Dpto. Psicología y Sociología)

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 Registro creado el 2021-11-15, última modificación el 2022-08-17


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