Figure 2From: Efficacy of a behavioral self-help treatment with or without therapist guidance for co-morbid and primary insomnia -a randomized controlled trial Proportion of treatment responders and remitters according to treatment group. (a) Treatment response defined as a change score on the Insomnia Severity Index of 8 points or more from pre-treatment. (b) Treatment remission defined as an Insomnia Severity Index score of less than 8 points.Back to article page