Evaluating the real-world effectiveness of cognitive-behavior therapy efficacy research on eating disorders: a case study from a community-based clinical setting

The Renfrew Unified Treatment for Eating Disorders and Comorbidity: Long-Term Effects of an Evidence-Based Practice Implementation in Residential Treatment

Background: The Renfrew Unified Treatment for Eating Disorders and Comorbidity (UT) is a transdiagnostic, emotion-focused treatment adapted for use in residential group treatment. This study examined the effect of UT implementation across five years of treatment delivery. Methods: Data were collected by questionnaire at admission, discharge (DC), and 6-month follow-up (6MFU). Patient outcomes were measured by the Eating Disorder Examination-Questionnaire, Center for Epidemiologic Studies-Depression Scale, Brief Experiential Avoidance Questionnaire (BEAQ), Anxiety Sensitivity Index, and Southampton Mindfulness Scale. Data were analyzed for N = 345 patients treated with treatment-as-usual (TAU), and N = 2,763 treated with the UT in subsequent years. Results: Results from multilevel models demonstrated a significant interaction between implementation status (TAU vs. UT) and time, both linear and quadratic, for the depression, experiential avoidance, anxiety sensitivity, and mindfulness variables. Patients treated with the UT showed more improvement in these variables on average, as well as more rebound between DC and 6MFU. Results from multilevel models examining eating disorder outcome showed no significant difference between the TAU and UT for the full sample, but a significant three-way interaction indicated that the UT produced more improvement in the EDE-Q relative to the TAU particularly for patients who entered treatment with high levels of experiential avoidance (BEAQ score). Conclusion: This long-term study of a transdiagnostic, evidence-based treatment in residential care for eating disorders and comorbidity suggests implementation was associated with beneficial effects on depression and emotion function outcomes, as well as eating disorder severity for patients with high levels of baseline emotion regulation problems. These effects did not appear to diminish in the 5 years following initial implementation.

A preliminary naturalistic clinical case series study of the feasibility and impact of interoceptive exposure for eating disorders

Recent literature suggests that individuals with eating disorders demonstrate altered interoceptive processing, which may relate to the maintenance of symptoms and thus represent a salient treatment target. Adopting treatment techniques effective for other conditions characterized by disturbed interoceptive processes (e.g., anxiety disorders) could aid in improving the outcomes of psychological interventions for eating disorders. The current investigation was a naturalistic case series (N = 4) that examined adjunctive interoceptive exposure (IE) for eating disorders, with an emphasis on evaluating the feasibility, acceptability, and impact of this intervention on anxiety sensitivity, interoceptive deficits, and eating disorder symptoms. Results suggested that all individuals who received 4 consecutive sessions of traditional and eating-disorder-specific IE exercises demonstrated decreases in interoceptive deficits and subjective distress. Results for anxiety sensitivity and eating disorder symptoms were encouraging yet more mixed. Findings also generally suggested that the intervention was feasible and acceptable, yet between-session practice compliance varied considerably among participants. Overall, we describe how IE may be used to target interoceptive deficits in eating disorders and provide preliminary evidence of how this may be accomplished within naturalistic intensive outpatient settings.

Maximizing the public health impact of eating disorder services: A simulation study

OBJECTIVE

Although effective interventions for eating disorders (ED) are available, the impact of health care services on a population level is far from satisfactory. A mathematical model of how health care for ED affects the population's disease burden can stimulate discussions and provide guidance about promising strategies to reduce ED-related suffering on the population level.

METHOD

The current health care situation for ED is modeled taking into account the reach and effectiveness of prevention, treatment, and aftercare, as well as incidence rates, relapse rates, and rates for spontaneous remissions. A first-order Markov model is applied and the effect of changes in single service parameters on the populations overall disease burden are simulated.

RESULTS

Improvements of treatment utilization and the reach of prevention programs would have the largest effects on the population's disease burden. Improving the efficacy of treatment, prevention, and aftercare show only limited effects.

DISCUSSION

In order to maximize the public health impact of health care for ED new models of treatment delivery as well as public health approaches to the prevention of ED are critical.

Treatment Protocols for Eating Disorders: Clinicians' Attitudes, Concerns, Adherence and Difficulties Delivering Evidence-Based Psychological Interventions

There are several protocols in existence that guide clinicians in the implementation of effective, evidence-based psychological interventions for eating disorders. These have been made accessible in the form of treatment manuals. However, relatively few clinicians use those protocols, preferring to offer more eclectic or integrative approaches. Following a summary of the research that shows that these evidence-based approaches can be used successfully in routine clinical settings, this review considers why there is such poor uptake of these therapies in such settings. This review focuses on the role of service culture and on clinicians' own attitudes, beliefs and emotions. Possible means of enhancing uptake are considered, but these cannot be considered to be ideal solutions at present.

Therapist drift redux: Why well-meaning clinicians fail to deliver evidence-based therapy, and how to get back on track

Therapist drift occurs when clinicians fail to deliver the optimum evidence-based treatment despite having the necessary tools, and is an important factor in why those therapies are commonly less effective than they should be in routine clinical practice. The research into this phenomenon has increased substantially over the past five years. This review considers the growing evidence of therapist drift. The reasons that we fail to implement evidence-based psychotherapies are considered, including our personalities, knowledge, emotions, beliefs, behaviours and social milieus. Finally, ideas are offered regarding how therapist drift might be halted, including a cognitive-behavioural approach for therapists that addresses the cognitions, emotions and behaviours that drive and maintain our avoidance of evidence-based treatments.

Evaluating the Mindfulness-based Coping Program: An Effectiveness Study Using a Mixed Model Approach

Since more than 450 million people worldwide suffer from mental disorders, interventions that promote mental health have been called for. Mindfulness-based coping (MBC) is an intervention based on coping skills from cognitive behavioral therapy integrating mindfulness practices. The aim of this study was to examine the effectiveness of the MBC program for psychiatric outpatients. The study employed a mixed research method with a qualitative approach using semi-structured patient interviews and clinical assessments from patients' therapists and a quantitative approach using instruments measuring mindful coping, mental ill health, and life satisfaction. The study sample included 38 psychiatric outpatients from a district psychiatric outpatient service in Norway. Results suggested that although use of the different skills varied, participants had a positive experience with the program and positive changes in psychological functioning were observed. Findings provide knowledge regarding the design of interventions integrating mindfulness to promote more adequate psychological coping.

Adapted group-based dialectical behaviour therapy for binge eating in a practicing clinic: clinical outcomes and attrition

Research evidence has been accumulating for the efficacy of dialectical behaviour therapy (DBT) for binge eating. However, support for its effectiveness and transportability beyond efficacy trials is lacking. The current study evaluated the feasibility of group-based DBT for binge eating within the context of an operating community clinic. Women ages 24-49 (M = 39.60, SD = 9.53) with either subthreshold and full-threshold binge eating disorder or bulimia nervosa formed the group and comprised the sample (n = 5 treatment completers). Positive outcomes included significant improvement in both binge eating and secondary outcomes with the Eating Disorder Inventory subscales of Bulimia, Ineffectiveness, Perfectionism and Interpersonal Distrust. Attrition was elevated compared with previous efficacy trials, suggesting the need for increased attention to how to improve retention within routine practice settings. Given our limited sample size, these findings are viewed as promising but preliminary.