Long-term outcomes and predictors of internet-delivered cognitive behavioral therapy for childhood anxiety disorders.
2017 (English)In: Behaviour Research and Therapy, ISSN 0005-7967, E-ISSN 1873-622X, Vol. 90, 67-75 p.Article in journal (Refereed) Published
OBJECTIVE: This study investigated the long-term outcomes of internet-delivered cognitive behavior therapy (ICBT) for children with anxiety disorders, and potential pre-treatment predictors of treatment outcome.
METHOD: The sample included eighty-four children (8-12 years old) with anxiety disorders, from both a treatment group and a waitlist control (after participants had crossed over to treatment) of a previous randomized controlled study. Participants were assessed at post-treatment and three- and twelve-months after treatment using a semi-structured interview and parent ratings. Pre-treatment data were used to investigate predictors of treatment outcome at three-month follow-up.
RESULTS: Intention-to-treat analysis showed that treatment gains were maintained at twelve-month follow-up, including clinician rated severity of the principal anxiety disorder, parent rated anxiety symptoms and global functioning, with mainly large effect sizes (Cohen's d = 0.63-2.35). Completer analyses showed that suspected autism spectrum disorder was associated with less change in symptom severity. No other pre-treatment measures significantly predicted treatment outcome.
CONCLUSION: This study suggests that internet-delivered CBT can have long-term beneficial effects for children with anxiety disorders. Predictors of treatment outcome need to be evaluated further.
TRIAL REGISTRATION: Clinicaltrials.gov; NCT01533402.
Place, publisher, year, edition, pages
Elsevier, 2017. Vol. 90, 67-75 p.
IdentifiersURN: urn:nbn:se:liu:diva-134535DOI: 10.1016/j.brat.2016.12.008ISI: 000393248800008PubMedID: 28012300OAI: oai:DiVA.org:liu-134535DiVA: diva2:1074252
Funding agencies: Stockholm County Council; Karolinska Institutet [ALF 20110278, 20120070]; Claes Groschinsky foundation [SF11 147]2017-02-152017-02-152017-03-14Bibliographically approved