What predicts patients' perceptions of improvement in insomnia?

Full Abstract

Although there has been considerable research into the effectiveness of individual cognitive behavioral treatment for chronic insomnia, less is known about patients' perceptions of what constitutes actual improvement. This study utilized 70 outpatients (mean age = 49.7 years, SD = 12.0) with insomnia who completed a 6-week cognitive behavioral group for sleep. Participants completed a number of primary (Pittsburgh Sleep Quality Index) and secondary measures (the Dysfunctional Beliefs about Sleep Scale, Insomnia Severity Index, Beck Depression Inventory, Penn State Worry Questionnaire) at pre- and post-treatment. Perceived improvement was measured using the Clinical Global Improvement Scale (CGI). Results were analyzed using a combination of Logistic Regression analysis and receiver operating curve characteristic analysis (ROC). Results demonstrated that sleep quality and sleep duration were the most sensitive primary measures, or best predicted perceived improvement, whereas sleep efficiency was the most specific primary measure, or best predicted perceived lack of improvement (defined as only mild improvement). Of the secondary measures, results showed that daytime impairment was the most sensitive predictor of perceived improvement and that mood was the most specific predictor of perceived lack of improvement. Implications of these findings are that sleep quality, sleep duration, and sleep efficiency may offer different types of information and the choice of measure for predicting global improvement in insomnia will depend on the needs of the researcher/clinician.

Learn Faster Today Improve your study skills

Author information

Author/s: Vincent, Norah (N); Penner, Stephanie (S); Lewycky, Samantha (S);

Affiliation: Department of Clinical Health Psychology, University of Manitoba, Winnipeg, Manitoba, Canada. nvincent(-atsign-)exchange.hsc.mb.ca

Journal and publication information

Publication Type: Journal Article

Journal: Journal of sleep research (J Sleep Res), published in England. (Language: eng)

Reference: 2006-Sep; vol 15 (issue 3) : pp 301-8

Dates: Created 2006/08/16; Completed 2007/01/03;

PMID: 16911032, status: MEDLINE (last retrieval date: 12/26/2008)

Sourced from the National Library of Medicine. Abstract text and other information may be subject to copyright.

External Links for this article (including full text providers, if available):

Click Electronic Full-text Provider Links to see options for finding the electronic full text links to this article. Note there may be a subscription or fee required for access to the full text. See our FAQ for information on finding FREE full text articles.

This article may also be located in paper journal collections available in many libraries. Use the Journal and Publication Information above to find the full article.

MeSH headings (categories)

This article was linked to the MESH Headings shown below.

Middle Aged
Questionnaires
ROC Curve
Self Concept
Sleep - physiology
Sleep Initiation and Maintenance Disorders - psychology; therapy

These are the highest related articles currently in the database:

See 100+ related articles.