Effects of Cognitive Behavioral Therapy–Based Intervention on Improving Glycaemic, Psychological, and Physiological Outcomes in Adult Patients With Diabetes Mellitus: A Meta-Analysis of Randomized Controlled Trials

Patients in a low-income community health center with Type 2 diabetes (N = 81) taking a one-day education workshop as part of their diabetes medical management were randomly assigned either to education alone or to a combination of education and acceptance and commitment therapy (ACT). Both groups were taught how to manage their diabetes, but those in the ACT condition also learned to apply acceptance and mindfulness skills to difficult diabetes-related thoughts and feelings. Compared with patients who received education alone, after 3 months those in the ACT condition were more likely to use these coping strategies, to report better diabetes self-care, and to have glycated hemoglobin (HbA-sub(1C)) values in the target range. Mediational analyses indicated that changes in acceptance coping and self-management behavior mediated the impact of treatment on changes in HbA-sub(1C). Copyright 2007 APA, all rights reserved.

In this era of insistence on evidence-based treatments, cognitive behavioral therapy (CBT) has emerged as a highly preferred choice for a spectrum of psychological disorders. Yet, it is by no means immune to some of the vagaries of client participation. Special concerns arise when clients drop out from treatment.

The purpose of this study was to shortly characterize the evolving psychotherapeutic methods summarized as 'third wave psychotherapies' and to review recent research on the therapeutic impact of these methods. 'Third wave psychotherapies' comprise a heterogeneous group of treatments, including acceptance and commitment treatment, behavioural activation, cognitive behavioural analysis system of psychotherapy, dialectical behavioural therapy, metacognitive therapy, mindfulness-based cognitive therapy and schema therapy. Several randomized controlled trials, longitudinal case series and pilot studies have been performed during the past 3-5 years, showing the efficacy and effectiveness of 'third wave psychotherapies'. The third wave of behavioural psychotherapies is an important arena of modern psychotherapy. It has added considerably to the spectrum of empirically supported treatments for mental disorders and influenced research on psychotherapy. The presented methods open up treatment possibilities for patient groups such as borderline personality disorder, chronic depression or generalized anxiety disorder that had received only little specific attention in the past. The available evidence now allows considering all third wave treatments as empirically supported.