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CLINICAL TRIAL article

Front. Sleep
Sec. Insomnia
Volume 3 - 2024 | doi: 10.3389/frsle.2024.1415077
This article is part of the Research Topic Online Cognitive Behavioral Therapy For Insomnia View all 4 articles

Duration of insomnia and success expectancy predict treatment outcome of iCBT for insomnia

Provisionally accepted
Polina Pchelina Polina Pchelina 1*Mikhail G. Poluektov Mikhail G. Poluektov 2
  • 1 Center for Neurology and Rehabilitation (CERENEO), Vitznau, Switzerland
  • 2 I.M. Sechenov First Moscow State Medical University, Moscow, Moscow Oblast, Russia

The final, formatted version of the article will be published soon.

    The identification of the prognostic factors of treatment outcome may assist in customizing the intervention to the patient's needs. Hence, we have conducted a secondary analysis of data from a randomized controlled trial investigating the effectiveness of an internet-based cognitive behavioral therapy for insomnia (iCBT-I) aiming to find patients' characteristics that may predict the change of insomnia severity after treatment.In this exploratory analysis, involving 94 chronic insomnia patients, we examined the predictive value of several self-reported measures, medical history, and sociodemographic variables to psychological distress with separate linear regression models. The main outcome was the Insomnia severity index (ISI) improvement from pre-to post-treatment: The study found that duration of insomnia [b (SE) = -0.02 (0.01), p = 0.01] and attitudes about the expected treatment success [b (SE) = 0.80 (0.27), p = 0.004] were predictors of a better outcome. Moreover, better outcome was associated with the lower level of traits of attention seeking [b (SE) = -1.06 (0.51), p = 0.04] and grandiosity [b (SE) = -1.50 (0.57), p = 0.01], distractibility [b (SE) = -1.57 (0.75), p = 0.04] and rigid perfectionism [b (SE) = -1.32 (0.65), p = 0.05].Our results suggest that iCBT-I might be particularly beneficial for patients with higher expectations from the therapy and those who have a shorter duration of insomnia. Some pronounced personality traits, like attention seeking, grandiosity, distractibility, and rigid perfectionism may predict worse outcomes. However, since this was a post hoc analysis, our results must be considered exploratory and verified in further studies

    Keywords: Chronic insomnia, internet-based cognitive-behavioral therapy for insomnia, Insomnia Severity Index, Responders, predictors, Multiple imputation

    Received: 09 Apr 2024; Accepted: 07 Oct 2024.

    Copyright: © 2024 Pchelina and Poluektov. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

    * Correspondence: Polina Pchelina, Center for Neurology and Rehabilitation (CERENEO), Vitznau, 6354, Switzerland

    Disclaimer: All claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organizations, or those of the publisher, the editors and the reviewers. Any product that may be evaluated in this article or claim that may be made by its manufacturer is not guaranteed or endorsed by the publisher.