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Predictors of Symptomatic Change and Adherence in Internet-Based Cognitive Behaviour Therapy for Social Anxiety Disorder in Routine Psychiatric Care
Karolinska Institute, Sweden.
Karolinska Institute, Sweden; Karolinska Institute, Sweden.
Karolinska Institute, Sweden; Karolinska Institute, Sweden; Karolinska Institute, Sweden.
Karolinska Institute, Sweden.
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2015 (English)In: PLoS ONE, ISSN 1932-6203, Vol. 10, no 4, e0124258- p.Article in journal (Refereed) Published
Abstract [en]

Objective A central goal of health care is to improve patient outcomes. Although several studies have demonstrated the effectiveness of therapist guided internet-based cognitive behaviour therapy (ICBT) for social anxiety disorder (SAD), a significant proportion of patients do not respond to treatment. Consequently, the aim of this study was to identify individual characteristics and treatment program related factors that could help clinicians predict treatment outcomes and adherence for individuals with SAD. Method The sample comprised longitudinal data collected during a 4-year period of adult individuals (N = 764) treated for SAD at a public service psychiatric clinic. Weekly self-rated Liebowitz Social Anxiety Scale (LSAS-SR) scores were provided. Rates of symptomatic change during treatment and adherence levels were analysed using multilevel modelling. The following domains of prognostic variables were examined: (a) socio-demographic variables; (b) clinical characteristics; (c) family history of mental illness; and (d) treatment-related factors. Results Higher treatment credibility and adherence predicted a faster rate of improvement during treatment, whereas higher overall functioning level evidenced a slower rate of improvement. Treatment credibility was the strongest predictor of greater adherence. Having a family history of SAD-like symptoms was also associated with greater adherence, whereas Attention-Deficit/Hyperactivity Disorder (ADHD)-like symptoms, male gender, and family history of minor depression predicted lower adherence. Also, the amount of therapist time spent per treatment module was negatively associated with adherence. Conclusions Results from a large clinical sample indicate that the credibility of ICBT is the strongest prognostic factor explaining individual differences in both adherence level and symptomatic improvement. Early screening of ADHD-like symptoms may help clinicians identify patients who might need extra support or an adjusted treatment. Therapist behaviours that promote adherence may be important for treatment response, although more research is needed in order to determine what type of support would be most beneficial.

Place, publisher, year, edition, pages
Public Library of Science , 2015. Vol. 10, no 4, e0124258- p.
National Category
Basic Medicine
URN: urn:nbn:se:liu:diva-118049DOI: 10.1371/journal.pone.0124258ISI: 000353211700081PubMedID: 25893687OAI: diva2:812918

Funding Agencies|Stockholm County Council

Available from: 2015-05-20 Created: 2015-05-20 Last updated: 2015-05-26

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