Predictors of treatment outcome in individuals with eating disorders: A systematic review and meta-analysis

Naturalistic outcomes for a day-hospital programme in a mixed diagnostic sample of adolescents with eating disorders

Despite initial data suggesting positive treatment outcomes for adolescent eating disorder day-hospital programmes (DHPs), existing studies have included limited follow-up, small samples, and a focus on restricting-type eating disorders. To address these gaps, we explored naturalistic outcomes for an adolescent eating disorders DHP. Adolescent participants (N = 265) completed measurements at treatment admission, discharge (n = 170), and various lengths of follow-up (n = 126; M_{follow up} = 278.87 days). Results from multilevel models indicated significant increases in body weight for the anorexia nervosa group throughout treatment and maintenance of increased body weight from discharge to follow-up. In bulimic spectrum disorders, binge eating and purging significantly decreased from intake to discharge and did not change from discharge to follow-up. Across the entire sample, eating disorder symptoms decreased from intake to discharge and did not change from discharge to follow-up. Further, anxiety and depression decreased over the course of treatment and continued to decrease over the follow-up period. The current investigation represents the first study to explore longitudinal DHP outcomes within adolescent bulimic spectrum eating disorders. Our findings also highlight many challenges inherent in conducting naturalistic research; it is critical that the field continue to develop solutions to the barriers inherent in conducting longitudinal research on eating disorder treatment.

Moderators and mediators of outcome in treatments for anorexia nervosa and bulimia nervosa in adolescents: A systematic review of randomized controlled trials

OBJECTIVE

To critically appraise papers reporting on moderators and mediators of recommended psychological treatments for anorexia nervosa (AN) and bulimia nervosa (BN) in adolescents.

METHOD

A systematic search of databases was conducted including PsycINFO, Embase, MEDLINE, AMED, CINAHL, and the Cochrane Library. Studies were included where a randomized controlled trial (RCT) compared therapies for AN or BN and reported on moderators or mediators of treatment effect. Twenty-one eligible papers were included, all based on data from eight RCTs.

RESULTS

Family therapies were dominant in the literature. Individual or separated treatment appeared superior for families with more difficult relationships, whereas conjoint family treatment appeared to be superior where good family relationships were reported. Where there was greater eating disorder psychopathology in AN, including eating disorder-related obsessions and compulsions, the response was better to a family approach than to individual therapies. There was some evidence that a family treatment was superior for those engaging in purging behaviors in BN. Measures of family relationships, parental self-efficacy, and early change emerged as possible mediators; however, the quality of evidence was mixed and the findings, in some cases, arguably circular. Moderator and mediator analyses were underpowered in all studies, with multiple, and post-hoc, analyses being run, and a broad range of outcome measures used.

DISCUSSION

This review recommends that emerging findings are explored further in adequately powered trials of the different recommended therapies, with a move toward focusing on effect sizes. A consensus on acceptable definitions of outcome, including remission and recovery, would benefit future research.

Personality as predictor of outcome in internet-based treatment of bulimic eating disorders

Internet-based cognitive behavioral therapy (ICBT) for bulimic eating disorders has demonstrated clinical utility and cost efficiency, but is associated with low patient preference, low credibility, sizeable dropout and only moderate symptom reduction. To improve outcome it is imperative to learn more about who might benefit from internet-based interventions. To do this, the current study investigated the Five Factor Model of personality as predictor of outcome in patients with full or sub-threshold bulimia nervosa (n = 109). Patients in a randomized controlled trial of ICBT were assessed prior to and at the end of treatment. Patients showed significant symptom reduction over time (Cohen's d = 1.0, p < .001). Remission as well as overall symptom reduction was positively predicted by Openness to Experience and Conscientiousness. Binge eating cessation specifically, was positively predicted by Extraversion. The study supports the use of personality assessment for patient selection and outcome optimization in internet-based treatment of bulimic eating disorders.

Blind versus open weighing from an eating disorder patient perspective

BACKGROUND

Weighing is a key component in the treatment of eating disorders. Most treatment protocols advocate for open weighing, however, many clinicians choose to use blind weighing, especially during the early phase of treatment. Despite considerable debate about this issue in the literature, there is no empirical evidence supporting the superiority of one weighing approach over the other. In addition, little is known about patients' perspectives of open and blind weighing and which weighing practice they view as more acceptable and/or beneficial for their treatment.

METHODS

Semi-structured qualitative interviews were conducted with 41 women with a current or past diagnosis of Anorexia or Bulimia Nervosa: 26 were undergoing specialist inpatient treatment (n = 13 being blind weighed; n = 13 being open weighed) and 15 were community members who have recovered from an eating disorder. Interviews were audiotaped, transcribed verbatim and analysed thematically using framework methods. Participant demographics, clinical characteristics, weighing anxiety and weight concerns were also assessed.

RESULTS

Qualitative analyses yielded five themes: (1) therapy engagement and progress; (2) Control and tolerance of weight uncertainty; (3) treatment team relationships and autonomy; (4) life outside of treatment; and (5) weighing practice preferences and rationale. Participants stated that blind weighing decreased anxiety and eating disorder psychopathology (e.g., weight preoccupation) and increased treatment responsivity. For many, relinquishing control over their weight facilitated body trust and was a necessary step towards recovery. Participants found that not knowing their exact weight helped challenge their overconcern with weight. Lack of support post-discharge was identified as a major difficulty of blind weighing. Overall, the majority of participants preferred blind weighing, particularly at the early, acute stage of treatment, whereas open weighing was viewed as more suitable at later stages of recovery. Quantitative analyses found current blind-weighed patients felt significantly less anxiety around being weighed and had greater tolerance of weight uncertainty than current open-weighed patients.

CONCLUSIONS

This study provided in-depth patient insights into open versus blind weighing practices. The next step for future research will be to supplement these insights with treatment outcomes gained from randomised controlled trials comparing the two weighing practices.

Eating Disorder Recovery: A Metaethnography

BACKGROUND: Eating disorders seriously affect both physical health and psychosocial functioning. Breaking the confines of an eating disorder requires engagement in a multifaceted recovery process. OBJECTIVE: This article provides a synthesis of 12 qualitative research studies with various eating disordered populations (anorexia nervosa, bulimia nervosa, binge eating disorder, eating disorder not otherwise specified, and other specified feeding and eating disorders) to elucidate the recovery process from the perspective of those who have overcome the disease. METHOD: A metasynthesis of qualitative studies was conducted using Noblit and Hare's metaethnographic methodology. RESULTS: Five overarching themes emerged from the data: (1) the eating disorder as a life jacket, (2) drowning: recognizing consequences, (3) treading the surface: contemplating recovery, (4) swimming: the path toward recovery, and (5) reaching recovery: a sense of freedom. CONCLUSIONS: Eating disorder treatment often entails a cycle of transitions before recovery occurs. Synthesizing the experiences from the perspective of individuals who have overcome an eating disorder presents a unique understanding of the treatment and recovery process.

Developing more efficient, effective, and disseminable treatments for eating disorders: an overview of the multiphase optimization strategy

The present manuscript describes the multiphase optimization strategy (MOST) and its potential applications to treatments for eating disorders (EDs). The manuscript describes the three phases of MOST, discusses a hypothetical case example of how MOST could be applied to developing a disseminable ED treatment, and reviews the pros and cons of the MOST approach. Outcomes from treatments for EDs leave room for improvement. However, traditional methods of treatment development and evaluation (i.e., the treatment package approach) make it challenging to determine how best to improve ED treatments. For example, testing full treatment packages in open trials and RCTs without systematic testing of each component is inefficient (as it is unknown which components are effective), and often does not provide concrete future directions for optimization of the treatment. Much stands to be gained by optimizing treatments in the early stages before testing them in open trials or RCTs. MOST is an alternative, engineering-inspired research framework that is well-suited to address the issues of inefficiency associated with the treatment package approach. MOST entails identifying the most promising treatment components for inclusion in interventions, then eliminating or deemphasizing less efficacious/inert components. This strategy results in a treatment comprised of only effective components that can then be tested via RCT. Though the MOST approach has limitations, it has the potential to greatly benefit ED treatment research and is worthy of application in the field.

Living with someone with an eating disorder: factors affecting the caregivers' burden

We focused on carers of subjects suffering from eating disorders (ED), and studied the characteristics that mostly expose them to high levels of stress, anxiety, depression and expressed emotion, favoring the accommodation of the family system to the cared person. We administered the accommodation and enabling scale for eating disorders (AESED) questionnaire, the family questionnaire (FQ) and the depression, anxiety and stress scale (DASS-21) questionnaire to 97 carers of 62 ED patients, and investigated the carer's characteristics associated with the scores in the three questionnaires. A personal history of ED, being the primary carer, and caring for a person with a diagnosis of anorexia nervosa are the characteristics that contribute most to aggravate the carers' burden in terms of stress, anxiety, depression, accommodation and enabling. Our findings may help doctors to provide effective support to caregivers and eventually improve the treatment of subjects with ED.

The Impact of a Dissonance-Based Eating Disorders Intervention on Implicit Attitudes to Thinness in Women of Diverse Sexual Orientations

Dissonance-based body image programs have shown long-term effectiveness in preventing eating disorders and reducing risk factors for eating disorders in women. Here we report on the potential for one such intervention to impact on implicit attitudes toward thinness as well as an explicit measure of eating attitudes, across a sexually diverse group of young women. The Succeed Body Image Programme was adapted to remove heteronormative assumptions and was delivered to a final sample of 56 undergraduate women who reported their sexual orientation as either “predominantly heterosexual” (our term; 1 or 2 on a 7-point Kinsey scale, n = 38) or non-heterosexual (3–7 on the Kinsey scale, n = 18). Before and after the intervention, they completed the Eating Attitudes Test-26, and an associative reaction time task based on the Implicit Association Test, in which bodies of low and higher weight were paired with socially desirable or undesirable traits. A total of 37 predominantly heterosexual women completed a control intervention in which they read NHS leaflets on eating disorders and healthy weight. Results showed that the intervention made predominantly heterosexual participants less prone, versus control, to associating thinness with positive traits on the IAT and all women completing the intervention reported a lower level of disordered eating attitudes at post- than pre-test. Non-heterosexual women, however, showed a non-significant increase in thin-bias on the IAT, perhaps due to their low baseline. These results imply that intensive dissonance-based programs can change attitudes at the automatic, implicit level as well as merely giving women tools to overcome those implicit attitudes.

Comparing a Tailored Self-Help Mobile App With a Standard Self-Monitoring App for the Treatment of Eating Disorder Symptoms: Randomized Controlled Trial

BACKGROUND

Eating disorders severely impact psychological, physical, and social functioning, and yet, the majority of individuals with eating disorders do not receive treatment. Mobile health apps have the potential to decrease access barriers to care and reach individuals who have been underserved by traditional treatment modalities.

OBJECTIVE

The objective of this study was to evaluate the effectiveness of a tailored, fully automated self-help version of Recovery Record, an app developed for eating disorders management. We examined differences in eating disorder symptom change in app users that were randomized to receive either a standard, cognitive behavioral therapy-based version of the app or a tailored version that included algorithmically determined clinical content aligned with baseline and evolving user eating disorder symptom profiles.

METHODS

Participants were people with eating disorder symptoms who did not have access to traditional treatment options and were recruited via the open-access Recovery Record app to participate in this randomized controlled trial. We examined both continuous and categorical clinical improvement outcomes (measured with the self-report Eating Disorder Examination Questionnaire [EDE-Q]) in both intervention groups.

RESULTS

Between December 2016 and August 2018, 3294 Recovery Record app users were recruited into the study, out of which 959 were considered engaged, completed follow-up assessments, and were included in the analyses. Both study groups achieved significant overall outcome improvement, with 61.6% (180/292) of the tailored group and 55.4% (158/285) of the standard group achieving a clinically meaningful change in the EDE-Q, on average. There were no statistically significant differences between randomized groups for continuous outcomes, but a pattern of improvement being greater in the tailored group was evident. The rate of remission on the EDE-Q at 8 weeks was significantly greater in the group receiving the tailored version (d=0.22; P≤.001).

CONCLUSIONS

This is the first report to compare the relative efficacy of two versions of a mobile app for eating disorders. The data suggest that underserved individuals with eating disorder symptoms may benefit clinically from a self-help app and that personalizing app content to specific clinical presentations may be more effective in promoting symptomatic remission on the EDE-Q than content that offers a generic approach.

TRIAL REGISTRATION

ClinicalTrials.gov NCT02503098; https://clinicaltrials.gov/ct2/show/NCT02503098.

How are early maladaptive schemas and DSM-5 personality traits associated with the severity of binge eating?

OBJECTIVE

The present study aimed to (a) assess and compare personological traits and early maladaptive schemas (EMSs) of obese women with and without binge eating disorder (BED) and (b) identify the variables associated with the binge severity.

METHOD

One hundred women (55 BED-obese and 45 non-BED-obese) completed psychopathological and personological self-report questionnaires. A forward stepwise linear regression analysis was performed to assess variables associated with binge eating severity.

RESULTS

Not only psychopathological but also personological differences were evident between BED and non-BED-obese women. BED severity was significantly associated with depressivity, emotional deprivation, and defectiveness.

CONCLUSIONS

Our preliminary findings suggest that BED patients exhibit some EMSs that could be linked to the construct of emotional neglect and specific personological traits closely related to depressive dimensions, emotional lability, and impulsivity. In particular, binge severity is associated with the pervasiveness of depressogenic cognitive schemas, as well as those of emotional deprivation and defectiveness.

Body dissatisfaction and weight control behaviour in children with ADHD: a population-based study

Although attention-deficit/hyperactivity disorder (ADHD) is associated with eating disorders (EDs), it is unclear when ED risk emerges in children with ADHD. We compared differences in body dissatisfaction and weight control behaviour in children with/without ADHD aged 12-13 years concurrently, and when aged 8-9 and 10-11 years, to determine when risk emerges. We also examined differences by ADHD medication status at each age. This study uses waves 1-5 from the Longitudinal Study of Australian Children (n = 2323-2972). ADHD (7.7%) was defined at age 12-13 years by both parent- and teacher-reported SDQ Hyperactivity-Inattention scores > 90th percentile, parent-reported ADHD diagnosis and/or ADHD medication treatment. Children reported body dissatisfaction and weight control behaviour at 8-9, 10-11 and 12-13 years. Children with ADHD had greater odds of body dissatisfaction at ages 8-9 and 12-13 years. Comorbidities drove this relationship at 8-9 but not at 12-13 years [adjusted odds ratio (AOR): 1.6; 95 % CI 1.1-2.4; p = 0.01]. At 12-13 years, children with ADHD had greater odds of both trying to lose and gain weight, regardless of BMI status. Comorbidities drove the risk of trying to lose weight in ADHD but not of trying to gain weight (AOR 2.3; 95% CI 1.1-4.6; p = 0.03), which is likely accounted for by ADHD medication treatment. ADHD moderately increases body dissatisfaction risk in children aged 8-9 and 12-13 years. Clinicians should monitor this and weight control behaviour throughout mid-late childhood, particularly in children with comorbid conditions and those taking ADHD medication, to reduce the likelihood of later ED onset.

Clinical Characteristics of Inpatients with Childhood vs. Adolescent Anorexia Nervosa

We aimed to compare the clinical data at first presentation to inpatient treatment of children (<14 years) vs. adolescents (≥14 years) with anorexia nervosa (AN), focusing on duration of illness before hospital admission and body mass index (BMI) at admission and discharge, proven predictors of the outcomes of adolescent AN. Clinical data at first admission and at discharge in 289 inpatients with AN (children: n = 72; adolescents: n = 217) from a German multicenter, web-based registry for consecutively enrolled patients with childhood and adolescent AN were analyzed. Inclusion criteria were a maximum age of 18 years, first inpatient treatment due to AN, and a BMI <10th BMI percentile at admission. Compared to adolescents, children with AN had a shorter duration of illness before admission (median: 6.0 months vs. 8.0 months, p = 0.004) and higher BMI percentiles at admission (median: 0.7 vs. 0.2, p = 0.004) as well as at discharge (median: 19.3 vs. 15.1, p = 0.011). Thus, in our study, children with AN exhibited clinical characteristics that have been associated with better outcomes, including higher admission and discharge BMI percentile. Future studies should examine whether these factors are actually associated with positive long-term outcomes in children.

Measurement of Personality Structure by the OPD Structure Questionnaire Can Help to Discriminate Between Subtypes of Eating-Disorders

Background

Differentiation between purging type (AN-P) and restricting type (AN-R) is common in anorexia nervosa (AN) and relevant for clinical practice. However, differences of personality pathology in eating disorders (ED) and their subtypes, which can be captured by the operationalized psychodynamic diagnosis (OPD) system, have not been systematically investigated to date.

Objectives

The aim of this study was to explore differences in personality structure between the subtypes of AN and bulimia nervosa (BN) using the OPD structure questionnaire (OPD-SQ). In addition, the ability of the instrument to support the classification of eating disorders was examined.

Materials and Methods

We conducted a retrospective, exploratory study in a subset sample of a larger validation study. The OPD-SQ had been collected from n = 60 patients with AN or BN. Patients were assigned to the ED groups by clinical assessment. Statistical analyses included multivariate analysis of variance (MANOVA) and discriminant analysis.

Results

Differences between ED groups were observed on 5 OPD-SQ main scales and 9 subscales, as well as on the global scale. AN-P patients demonstrated the lowest personality structure on most of the main scales and subscales, whereas AN-R patients showed a higher personality structure level as compared to both BN and AN-P patients. The OPD-SQ scales with the largest differences include self-perception, object perception, and attachment to internal objects. Discriminant analysis resulted in satisfactory assignment to ED groups by OPD-SQ subscales.

Conclusions

Personality structure was found to be less developed in patients with BN and AN-P as compared to patients with AN-R. Although the results have to be proven in larger prospective studies, these results suggest that the OPD-SQ may be used to support the clinical assessment and classification in patients with EDs.

Comparing severity and qualitative facets of depression between eating disorders and depressive disorders: Analysis of routine data

BACKGROUND

While it is know that depressive symptoms are common in eating disorders (EDs), it is unclear whether these symptoms differ from those in depressive disorders (DDs) with regard to severity and quality.

METHODS

Beck Depression Inventory II (BDI-II) scores at admission to treatment of 4.895 inpatients with a unipolar DD and 3.302 inpatients with an ED were compared by means of independent t-tests and Cohen's d effect sizes with regard to: (1) overall severity (BDI-II total score), (2) six facets of depression identified by non-metric multidimensional scaling of the German BDI-II validation sample, and (3) individual items.

RESULTS

(1) The two groups did not differ with regard to the BDI-II total score. (2) There was no difference in the facet Depressive Core Symptoms. Patients with DDs had higher scores for Diminished Activation (d = 0.40) and patients with EDs had higher scores for Negative View of Self (d = 0.40). (3) Patients with DDs showed higher score on the item Loss of Energy (d = 0.48), while patients with EDs sored higher on Self-Dislike (d = 0.48) and Changes of Appetite (d = 0.48).

CONCLUSIONS

Depression in EDs seems to be as severe as in DDs and may show similar core aspects (e.g., Sadness, Loss of Pleasure). Qualitative differences suggested that individual additional symptoms of depression need to be differently addressed in therapy. The pronounced Negative View of Self in EDs is in line with the "core low self-esteem", a central component of the prevalent transdiagnostic model of EDs.

A randomized controlled trial of group cognitive remediation therapy for anorexia nervosa: Effects on set-shifting tasks for inpatient adults and adolescents

OBJECTIVE

The aim of this randomized controlled trial with a parallel design was to evaluate the effect of brief, cognitive remediation therapy (CRT) for anorexia nervosa (AN) on set-shifting.

METHOD

Two hundred seventy-five inpatient adults and adolescents with AN (mean age = 23.1; SD = 12.7) were randomly assigned (using simple randomization procedures) to either a CRT or control condition. All participants received treatment as usual; however, the CRT condition completed five CRT group sessions in lieu of other group therapies provided on the unit. Set-shifting abilities were evaluated by: (a) neuropsychological measures and (b) experimental cognitive behavior therapy thought records. Blinding of group assignment occurred during baseline assessment and ended following group commencement.

RESULTS

Data from 135 CRT and 140 control condition participants were analyzed. On all neuropsychological measures, results revealed no between group condition effects, but did show statistically significant time effects, with medium to large effect sizes. Thought record analysis revealed a significant condition by age interaction effect where adults in the CRT condition generated significantly more alternative thoughts and had stronger believability of alternative thoughts than children, a trend that was not found in the control condition. This yielded moderate to large effect sizes of.0.56 and 0.72, respectively.

DISCUSSION

Based on traditional neuropsychological measures, these findings do not suggest a differential effect of CRT for AN in the format applied. However, results suggest that CRT may have some increased beneficial cognitive effect for adults, as compared to children, based on thought record analysis.

A naturalistic comparison of two inpatient treatment protocols for adults with anorexia nervosa: Does reducing duration of treatment and external controls compromise outcome?

OBJECTIVE

Although hospitalization is sometimes necessary when treating individuals with anorexia nervosa, the available literature provides limited guidance to inform decisions surrounding optimal components or duration of inpatient treatments. We report observational data comparing outcomes of two inpatient treatments. The first was longer and more strictly structured around a Contingency Management Protocol (CMP) emphasizing external incentives for achieving weight-restoration goals; the second was a shorter Autonomy Support Protocol (ASP) that progressively increased patient autonomy around meal management without external incentives.

METHOD

We compared data from 41 patients who participated in the ASP to a historical sample of 41 patients treated using the CMP. At admission, discharge, and post-treatment follow-up, participants completed the Eating Disorder Examination Questionnaire and the Behavior and Symptom Identification Scale-32, and we measured height and weight to compute body mass index.

RESULTS

Multilevel modeling analyses that controlled for time in treatment and time in follow-up indicated the two protocols yielded equivalent in-treatment gains and post-treatment loss of gains.

DISCUSSION

Our results indicate that shorter inpatient stays emphasizing autonomous control over eating behavior may yield outcomes that are equivalent to those of lengthier, more stringent, and more costly approaches implicating external incentives and controls.

Characteristics of patients in an eating disorder sample who dropped out: 2-year follow-up

OBJECTIVE

This manuscript explores the characteristics of individuals diagnosed with an eating disorder who dropped out of treatment, compared with those who completed it.

METHOD

The participants were 196 patients diagnosed with eating disorders (according to DSM-IV-TR criteria) who consecutively began treatment for the first time in an eating disorders unit. They were assessed at baseline with a set of questionnaires evaluating eating habits, temperament, and general psychopathology. During the follow-up period, patients who dropped out were re-assessed via a telephone interview.

RESULTS

In the course of a 2-year follow-up, a total of 80 (40.8%) patients were labeled as dropouts, and 116 (59.2%) remaining subjects were considered completers. High TCI scores in the character dimensions of Disorderliness (NS4) (p < .01) and total Novelty Seeking (NST), along with low scores in Dependency (RD4), were significantly associated with dropout in the course of 2 years. Once the results were submitted to logistic regression analysis, dropout only remained associated with high scores in Disorderliness (NS4) and, inversely, with an initial Anorexia Nervosa (AN) diagnosis (p < .05). Reasons for dropout stated by the patients included logistic difficulties, subjective improvement of their condition, and lack of motivation.

DISCUSSION

Clinicians should handle the first therapeutic intervention with particular care in order to enhance their understanding of clients and their ability to rapidly identify those who are at risk of dropping out of treatment.

LEVEL OF EVIDENCE

Level III: Cohort Study.

Selflessness as a predictor of remission from an eating disorder: 1-4 year outcomes from an adolescent day-care unit

OBJECTIVE

To assess the potential role of selflessness in predicting remission from an eating disorder (ED) following discharge from an adolescent day-care unit.

METHOD

Participants were 95 female patients (aged 13-19 years) with an ED diagnosis across the spectrum admitted to an adolescent day-care unit for EDs between 2008 and 2012. Forty-one of these participants completed the follow-up assessment, between 12 and 46 months following discharge. No significant differences were found in Time 1 variables between patients who participated in Time 2 and those who did not. At both time points, ED and psychiatric comorbidity diagnoses were made using standard structured interviews. Patients were also administered the Beck Depression Inventory (BDI), the State-Trait Anxiety Inventory (STAI), The Eating Attitude Test (EAT-26), The Eating Disorder Inventory (EDI-2) and the Selflessness Scale (SS)*.

RESULTS

Only baseline Selflessness Scale was significant in predicting the continuous variable of ED symptomatology level in follow-up. When dividing EDI total score into its subscales at baseline, one of those, maturity fears, was found, together with the SS, significant in the prediction. In predicting remission (this time as a dichotomized variable) in follow-up, only the SS, maturity fears, EDI total, and EAT-26, at baseline, predicted remission at follow-up, but the strength of selflessness was the greatest.

CONCLUSIONS

Psychological features are not the main target of the important search for predictors of remission from ED. The findings of the present study add the psychological feature of selflessness to this search. Psychotherapy can be enriched by identifying psychological features such as selflessness as one of its foci. The present findings might also renew interest in maturity fears as an additional focus in psychotherapy.

LEVEL OF EVIDENCE

Level III, cohort study.

Mediating role of experiential avoidance in the relationship between anxiety sensitivity and eating disorder psychopathology: A clinical replication

OBJECTIVE

This study sought to examine whether anxiety sensitivity was associated with eating disorder (ED) symptom severity among patients with severe EDs, and to determine whether this relationship was mediated by experiential avoidance.

METHOD

Adolescent and adult females (N = 625) seeking residential ED treatment completed self-report measures of anxiety sensitivity, experiential avoidance, and ED psychopathology. Linear regression evaluated the cross-sectional association between ED symptom severity and three dimensions of anxiety sensitivity (social, physical, and cognitive). Regression-based mediation analysis with bootstrapping tested the associations among the three dimensions of anxiety sensitivity and ED symptom severity through experiential avoidance.

RESULTS

The social dimension of anxiety sensitivity was positively associated with severity of ED psychopathology. Experiential avoidance mediated this association.

DISCUSSION

ED symptoms in this sample were more severe among patients who endorsed greater concern about appearing nervous or anxious to others. The current results indicate that this relationship was driven by a tendency to avoid experiences that evoke emotional discomfort. If replicated, these findings suggest that targeting both social anxiety sensitivity and experiential avoidance may improve ED treatment outcomes. Further study of the mechanistic relationships among social anxiety sensitivity, experiential avoidance, and ED psychopathology, is warranted.

Willingness of individuals with eating disorders to participate in health research

BACKGROUND/AIMS

This study examines the association between eating disorders (EDs) and willingness to participate in health research studies among community members.

MATERIALS & METHOD

Data were collected from Health Street, a University of Florida community engagement initiative which aims to reduce disparities in healthcare and health research by direct engagement of community members.

RESULTS

Among 8,226 community members, 3.9% (n = 324) reported a lifetime ED. For all six types of health research studies queried, individuals with a lifetime ED reported a higher willingness to participate in health research compared to individuals without a history. After adjusting for selected covariates, individuals with ED were significantly more likely than individuals without ED to say they would be willing to volunteer for research studies that: ask questions about health (OR: 7.601, 95% CI: [1.874, 30.839]); require an overnight stay in a hospital (OR: 2.041, 95% CI: [1.442, 2.889]); and provide no remuneration (OR: 1.415, 95% CI: [1.022, 1.958]). Furthermore, when compared to individuals with anxiety or depression, individuals with ED reported increased interest in research participation and increased willingness to participate in most types of research studies assessed. After stratifying by gender and race, we observed few differences in willingness to participate in research among individuals with ED.

DISCUSSION

These findings contribute to our current understanding of participant recruitment and enrollment in ED health research. Underrepresented populations who often do not seek treatment for EDs endorsed a high willingness to participate.

CONCLUSION

Future studies will likely benefit from including community members in ED research.

Self-assessment of eating disorder recovery: Absence of eating disorder psychopathology is not essential

OBJECTIVE

The definition of recovery in eating disorders (EDs) according to researchers is not necessarily similar to the patient definition. This study aimed to explore the concept of recovery as assessed by those affected by an ED themselves.

METHOD

Participants from the Netherlands Eating disorder Registry (NER) who reported an (former) ED diagnosis (n = 814) assessed their own recovery level: current ED, partial or full recovery. Furthermore, research-based criteria (Bardone-Cone et al., Behaviour Research and Therapy, 2010, 48, 194-202) were applied to define recovery. Within the self-assessed full recovery group (n = 179), participants who also fulfilled the research-based criteria were compared to those who were only recovered based on self-assessment in the following domains: ED psychopathology, psychiatric comorbidity, quality of life, and social and societal participation.

RESULTS

Ninety-six of the participants (54%) who considered themselves recovered did not fulfill the research-based definition. The two recovery groups did not significantly differ in psychiatric comorbidity, quality of life, and social and societal participation.

DISCUSSION

Absence of ED characteristics was not essential for individuals to consider themselves recovered. Although the self-assessed recovery status may be subjective, it does advocate the use of additional health indicators besides ED psychopathology when defining recovery.

Women's recovery from anorexia nervosa: a systematic review and meta-synthesis of qualitative research

Anorexia nervosa (AN) is a complex and challenging condition and recovery can be a slow and difficult process. Predicting factors remain largely unknown. This paper aims to systematically review qualitative studies which have investigated female service users' experiences of recovering from AN and carry out a meta-synthesis of the themes they identified. Meta-ethnography was used to select and synthesize the studies. Articles published between 2002 and 2017 were searched in PsycInfo, EMBASE, CINAHL and Medline. Studies were included if they explored recovery from AN using a qualitative methodology. The methodological quality of the studies was systematically and critically appraised. Fourteen studies were selected for inclusion. Common themes reported by participants describe the process of recovery from AN as dealing with a fragmented sense of self, a turning point where insight and commitment to recovery is developed, and, in recovery, a reclamation of self through meaningful relationships, rebuilding identity and self-acceptance. Recovery from AN is experienced as a complex psychological process with many contributing factors. Findings highlight the need to reconsider clinical practice and treatment provision to incorporate the psychological components of self-identity into recovery programs.

Residual eating disorder symptoms and clinical features in remitted and recovered eating disorder patients: A systematic review with meta-analysis

OBJECTIVE

In psychiatry, the presence of residual symptoms after treatment is linked to the definitions of remission and recovery. To identify the presence of residual eating disorder (ED) symptoms and associated non-ED clinical features in remitted and recovered EDs, the current systematic review with meta-analysis was performed.

METHOD

A systematic review was conducted on residual ED symptoms and non-ED clinical features including comorbid psychopathology, neurophysiological functioning, cognitive functioning, and quality of life in ED patients considered remitted or recovered. To examine residual ED symptoms, meta-analyses were performed while considering age, study quality, remission, and recovery criteria strictness as moderators. Sensitivity, publication bias, and heterogeneity analyses were also conducted.

RESULTS

The 64 studies selected for the systematic review underscored the presence of residual ED symptoms in anorexia nervosa (AN) and bulimia nervosa (BN), and impairments and deficits in the additional features examined. From the 64 studies, 31 were selected regarding residual ED symptoms in AN for meta-analysis. Large effect sizes indicated that remitted/recovered AN patients reported significantly lower body mass index (Hedges' g = -0.62[-0.77, -0.46]) and significantly greater symptomatology in terms of ED examination-questionnaire (Hedges'g = 0.86 [0.48,1.23]) and ED inventory (Hedges' g = 0.94[0.64,1.24]) than healthy controls, independently of remission and recovery criteria strictness, age, and study quality.

DISCUSSION

The presence of residual ED symptoms in AN is quantitatively supported, whereas the presence of residual ED symptoms in BN should be further investigated. Data on binge-eating disorder are missing. Future research should use consistent, multicomponent, and standardized comparable indicators of recovery.

Mechanisms and moderators in mindfulness- and acceptance-based treatments for binge eating spectrum disorders: A systematic review

OBJECTIVE

Increasing evidence suggests that mindfulness- and acceptance-based psychotherapies (MABTs) for bulimia nervosa (BN) and binge eating disorder (BED) may be efficacious; however, little is known about their active treatment components or for whom they may be most effective.

METHODS

We systematically identified clinical trials testing MABTs for BN or BED through PsychINFO and Google Scholar. Publications were categorized according to analyses of mechanisms of action and moderators of treatment outcome.

RESULTS

Thirty-nine publications met inclusion criteria. Twenty-seven included analyses of therapeutic mechanisms, and five examined moderators of treatment outcome. Changes were largely consistent with hypothesized mechanisms of MABTs, but substandard mediation analyses, inconsistent measurement tools, and infrequent use of mid-treatment assessment points limited our ability to make strong inferences.

DISCUSSION

Analyses of mechanisms of action and moderators of outcome in MABTs for BN and BED appear promising, but the use of more sophisticated statistical analyses and adequate replication is necessary.

Long-term outcome of inpatients with bulimia nervosa-Results from the Christina Barz Study

OBJECTIVE

To assess the long-term outcome and identify outcome predictors in a very large sample of inpatients treated for bulimia nervosa (BN).

METHOD

Out of a total of 2,033 patients admitted consecutively to specialized treatment, 1,351 patients (mean age at treatment 25.94) were assessed for follow-up on average 11 (SD 6) years after admission. Also a very long-term (21 years) subsample (N = 147; mean age 25.92) was defined. Bivariate and logistic regression analyses identified predictors of poor outcome.

RESULTS

For more than 70% of the patients follow-up information could be gathered. Severity of eating disorder (ED) and other symptoms decreased over time but remained higher than in healthy controls, using published normative data. Remission rate was 38% after 11 years and 42% in the subsample after 21 years. Out of the total sample of N = 2,033 patients, 49 had died (2.4%). Persistent BN was found in 14.2% and the most frequent crossover was to ED not otherwise specified. Predictors of poor outcome were fewer follow-up years, higher drive for thinness, higher age at treatment, and less global functioning.

DISCUSSION

Based on clinical indicators, patients presented with a high level of ED and psychiatric symptomatology. With less than half of the patients remitted after 22 years, efforts are needed to improve treatment outcome.

Cognitive Behavior Therapy for the Eating Disorders

Cognitive behavioral therapy (CBT) is an evidence-based treatment for bulimia nervosa and binge-eating disorder and is regarded as the first-line treatment for both eating disorders. An enhanced version of the treatment (CBT-E) appears more effective in treating patients with severe comorbidity. There is less evidence that CBT is effective for the treatment of anorexia nervosa. Evidence suggests that CBT-E is no more effective than specialist care involving regular medical follow-up and supportive psychotherapy in the persistent adult form of anorexia nervosa (AN). Early studies suggest that CBT-E may be useful in treating the adolescent form of AN.

Bridging eating disorder symptoms and trait anxiety in patients with eating disorders: A network approach

OBJECTIVE

Anxiety is thought to influence the development and maintenance of eating disorders (EDs). However, little is known about how, specifically, anxiety influences ED symptoms and vice versa. Network analysis identifies how symptoms within and across disorders are interconnected. In a network, central nodes (i.e., symptoms) have the strongest relations to other nodes and are thought to maintain psychopathology. Bridge nodes are symptoms in one diagnostic cluster that are strongly connected to symptoms in another diagnostic cluster and are thought to explain comorbidity. We identified central and bridge nodes in a network of ED symptoms and trait anxiety features.

METHOD

We estimated a regularized partial correlation network in patients with mixed EDs (N = 296). ED symptoms were assessed with the Eating Disorder Examination-Questionnaire. Trait anxiety was assessed with the Trait subscale of the State-Trait Anxiety Inventory. Items to include in the network were selected with a statistical algorithm to ensure that all nodes represented unique constructs. Central and bridge nodes were identified with empirical calculations.

RESULTS

Central ED nodes were dietary restraint, as well as overvaluation of and dissatisfaction with shape and weight. The central trait anxiety node was low feelings of satisfaction. The strongest ED bridge node was avoidance of social eating. The strongest trait anxiety bridge node was low self-confidence.

DISCUSSION

Avoidance of social eating and low self-esteem may be routes through which EDs and trait anxiety are linked.

Severe and enduring anorexia nervosa: Can risk of persisting illness be identified, and prevented, in young patients?

OBJECTIVE

Long-term outcome studies of anorexia nervosa (AN) have demonstrated that up to 20% of cases will follow an unremitting course despite many attempts at symptom-based treatments. The objectives of this study are to identify in a younger age group with AN whether persistent illness can be identified early and prevented.

METHODS

An extensive literature review of such studies published in Pubmed was conducted.

RESULTS

This review revealed that these studies have generally been conducted in adult patients who have been chronically ill over many years.

DISCUSSION

Despite that fact that there is little published evidence on severe and persistent illness in a younger rage group, there are important clinical questions to consider in such a group of AN individuals. This commentary attempts to answer these questions, often in the absence of research evidence. These questions include whether it is possible to identify those who will go on to develop a severe, enduring course; whether early intervention can prevent the development of a such a course; and whether a focus on quality of life rather symptom alleviation is appropriate for a younger age group of unremitted sufferers. In the absence of research that that clearly informs these questions, the authors are left to recommend answers to these question based on a case by case interrogation of relevant factors, including the presence of the risk architecture to which AN has been strongly linked, the age of the patient, the wishes of the family and importantly, the opinions of expert bioethicists and clinicians sufficiently knowledgeable about the psychopathology, natural history, and treatment of AN to be able to render an informed decision.

Is stage of change enough? Confidence as a predictor of outcome in inpatient treatment for eating disorders

OBJECTIVE

While stage of change has been shown to be a robust predictor of eating disorder treatment outcome, little attention has been paid to the role of confidence. This study sought to better understand the role of confidence and the possible interaction it may have with stage of change in promoting eating disorder symptom change.

METHOD

Participants were adult women in inpatient treatment for eating disorders. They completed measures of motivation for change, which assessed precontemplation, action, confidence and internality (changing for oneself vs. others) and eating disorder symptom severity at pretreatment (N = 159) and posttreatment (n = 59). Only treatment completer analyses were used.

RESULTS

Precontemplation and confidence had significant effects on pretreatment and posttreatment symptom severity, while action only had a significant effect on pretreatment symptoms. Confidence was shown to moderate relations between both measures of stage of change (i.e., precontemplation and action) and symptoms posttreatment. Follow-up analyses indicated that high precontemplation was associated with poor outcome, irrespective of confidence, however, low precontemplation was associated with better outcome at high levels of confidence. The interaction between confidence and action was also significant at very high levels of confidence. That is, among individuals who had high action at baseline, those with low confidence had significantly poorer outcomes relative to those with high confidence.

DISCUSSION

Findings indicate that stage of change and confidence are both important prognostic factors and suggest that early behavior change in the absence of confidence may not guarantee best outcomes in inpatient eating disorder treatment.

Recent Research on Bulimia Nervosa

Estimates of lifetime bulimia nervosa (BN) range from 4% to 6.7% across studies. There has been a decrease in the presentation of BN in primary care but an increase in disordered eating not meeting full diagnostic criteria. Regardless of diagnostic status, disordered eating is associated with long-term significant impairment to both physical and mental quality of life, and BN is associated with a significantly higher likelihood of self-harm, suicide, and death. Assessment should adopt a motivationally enhancing stance given the high level of ambivalence associated with BN. Cognitive behavior therapy specific to eating disorders outperforms other active psychological comparisons.

Predictors of outcome in cognitive behavioural therapy for eating disorders: An exploratory study

OBJECTIVE

Early decrease in symptoms is a consistent predictor of good treatment outcome across all eating disorders. The current study explored the predictive value of novel early change variables in a transdiagnostic, non-underweight sample receiving 10-session cognitive behavioural therapy.

METHOD

Participants who reported bingeing and/or purging in the week preceding baseline assessment (N = 62) were included in analyses. Early change variables were calculated for novel (body image flexibility, body image avoidance, body checking, and fear of compassion) and established predictors (behavioural symptoms and therapeutic alliance). Outcomes were global eating disorder psychopathology and clinical impairment at posttreatment and three-month follow-up. Intent-to-treat analyses were conducted using linear regression, adjusting for baseline values of the relevant outcome and early change in behavioural symptoms.

RESULTS

Early improvement in body image flexibility was the most consistent predictor of good outcome. Early change in body image avoidance and the fear of expressing and receiving compassion to/from others were significant predictors in some analyses.

DISCUSSION

Novel early change variables were significant predictors of eating disorder outcomes in this exploratory study. Model testing is required to understand the exact mechanisms by which these variables impact on outcomes, and whether there is potential benefit of modifying existing protocols.

ANZCTR TRIAL NUMBER

ACTRN12615001098527.

Investigating transdiagnostic factors in eating disorders: Does self-esteem moderate the relationship between perfectionism and eating disorder symptoms?

OBJECTIVE

According to Fairburns transdiagnostic model of eating disorders (EDs), high levels of perfectionism and low self-esteem are two core traits across EDs. This study investigates the role of self-esteem as a transdiagnostic moderator of the relationship between perfectionism and ED symptoms across EDs.

METHOD

A large group of patients (n = 732) completed several questionnaires measuring perfectionism, self-esteem, and disordered eating symptomatology, more specifically, drive for thinness (DFT) and body dissatisfaction (BD).

RESULTS

Across EDs, self-esteem served as a moderator for the association between perfectionism and DFT. However, by testing the model for DFT in each ED separately, the effect only remained in patients with anorexia nervosa and ED not otherwise specified. When testing the model for BD, no moderation effect was found in any of the included EDs.

CONCLUSIONS

This study found that the interaction between perfectionism and self-esteem on DFT can be seen as transdiagnostic, although this effect is not found in each ED separately. These results suggest that ED treatment should consider to not only focus on transdiagnostic factors but also look at the specific impairments of each individual ED.

The role of self-esteem in the treatment of patients with anorexia nervosa - A systematic review and meta-analysis

OBJECTIVE

We aimed to provide a comprehensive overview of the role of self-esteem in the treatment of patients with anorexia nervosa (AN). Specifically, our objectives were to investigate the differences in self-esteem between individuals with AN and healthy controls, or individuals with other eating disorders, and to examine self-esteem as an outcome, predictor, moderator, and mediator in AN treatment.

METHOD

The databases PsycINFO, PSYNDEXplus, Ovid MEDLINE®, and ProQuest were searched for studies published from 1990 to 2018. To estimate aggregated effect sizes, we performed random-effects meta-analyses.

RESULTS

A screening of 1,596 abstracts and 203 full-texts identified 68 relevant publications. Results suggest a significantly lower global self-esteem in individuals with AN than in healthy controls (d = -1.90, p < .001). In contrast, global self-esteem of AN and bulimia nervosa (BN) patients was found to be comparable (d = 0.05, p = .529). It might be specific to AN patients that negative self-evaluations may not affect scholastic and professional abilities. Significantly moderate self-esteem increases were observed in treated AN patients at the end of treatment (d = 0.56, p < .001), short-term (d = 0.50, p < .001), and long-term (d = 0.75, p < .001) follow-up. Self-esteem did not predict end of treatment remission-or weight-related outcome and treatment dropout. However, small to moderate predictive effects were detected on short-term (r = .15, p = .007) and long-term remission or weight (r = .33, p = .017). Finally, first indications point to self-esteem as a mediator in adult AN inpatient treatment.

DISCUSSION

The review provides insights relevant for theory, research, and practice. Implications concern the overall support for transdiagnostic approaches and the recommendation to consider low initial self-esteem for decisions on after-care.

Pre-treatment patient characteristics as predictors of drop-out and treatment outcome in individual and family therapy for adolescents and adults with anorexia nervosa: A systematic review and meta-analysis

Understanding variables predicting drop-out or unfavourable outcome following treatment for anorexia nervosa (AN) may help to improve upon intervention efforts. However, the current literature has demonstrated sparse and inconsistent significant findings. The current systematic review and meta-analysis summarised the evidence base examining baseline predictors of drop-out and outcome in AN treatment. A literature search was conducted to identify research investigating predictors of drop-out and outcome in individuals treated for AN. Four online databases were searched, and predictors were organised by category and dependent variable (outcome versus drop-out). 27 studies were included. Lower motivation, lower BMI, and having the binge-purge subtype of AN predicted drop-out. Greater ED pathology and poorer motivation predicted poorer outcome. Clinical recommendations include taking particular care during assessment stages to identify patients at risk of drop-out and/or poor outcome based on their clinical profile and level of motivation for recovery. At-risk patients should be receiving tailored treatment to enhance engagement and reduce risk of drop-out. In conclusion, there's some evidence that motivation, BMI, subtype, and ED pathology predicts drop-out and/or outcome in individual and family-based therapy for AN amongst adolescents and adults; however, research incorporating carefully designed multi-site studies is required to further examine these findings.

A comparative network analysis of eating disorder psychopathology and co-occurring depression and anxiety symptoms before and after treatment

BACKGROUND

Network analysis is an emerging approach in the study of psychopathology, yet few applications have been seen in eating disorders (EDs). Furthermore, little research exists regarding changes in network strength after interventions. Therefore the present study examined the network structures of ED and co-occurring depression and anxiety symptoms before and after treatment for EDs.

METHOD

Participants from residential or partial hospital ED treatment programs (N = 446) completed assessments upon admission and discharge. Networks were estimated using regularized Graphical Gaussian Models using 38 items from the Eating Disorders Examination-Questionnaire, Quick Inventory of Depressive Symptomatology, and State-Trait Anxiety Inventory.

RESULTS

ED symptoms with high centrality indices included a desire to lose weight, guilt about eating, shape overvaluation, and wanting an empty stomach, while restlessness, self-esteem, lack of energy, and feeling overwhelmed bridged ED to depression and anxiety symptoms. Comparisons between admission and discharge networks indicated the global network strength did not change significantly, though symptom severity decreased. Participants with denser networks at admission evidenced less change in ED symptomatology during treatment.

CONCLUSIONS

Findings suggest that symptoms related to shape and weight concerns and guilt are central ED symptoms, while physical symptoms, self-esteem, and feeling overwhelmed are links that may underlie comorbidities in EDs. Results provided some support for the validity of network approaches, in that admission networks conveyed prognostic information. However, the lack of correspondence between symptom reduction and change in network strength indicates that future research is needed to examine network dynamics in the context of intervention and relapse prevention.

Early Change Trajectories in Cognitive-Behavioral Therapy for Binge-Eating Disorder

Rapid response is considered the most well-established outcome predictor across treatments of binge-eating disorder (BED), including cognitive-behavioral therapy (CBT). This study sought to identify latent trajectories of early change in CBT and compare them to common rapid response classifications. In a multicenter randomized trial, 86 adults with BED (DSM-IV) or subsyndromal BED provided weekly self-reports of binge eating over the first 4 weeks of CBT, which were analyzed to predict binge eating, depression, and body mass index at posttreatment, 6-, and 18-month follow-up. Using latent growth mixture modeling, three patterns of early change-including moderate and low decreasing-as well as low stable binge eating were identified, which significantly predicted binge-eating remission at 6-month follow-up. Other classifications of rapid response based on Receiver Operating Characteristics curve analyses or on the literature (≥ 10% reduction in binge eating at week 1, ≥ 70% reduction in binge eating at week 4) only predicted posttreatment remission or overall depression, respectively. Latent change trajectories, but not other rapid response classifications, predicted binge-eating frequency over time. A fine-grained analysis of change over the first 4 weeks of CBT for BED revealed different trajectories of early change in binge eating that led to an improved prediction of binge-eating outcome, compared to that of common rapid response classifications. Thorough monitoring of early change trajectories during treatment may have clinical utility.

Significados do Abandono do Tratamento para Pacientes com Transtornos Alimentares

Resumo Este estudo teve por objetivo compreender os significados do abandono do tratamento para pacientes com transtornos alimentares (TA), acompanhados em um serviço especializado. Trata-se de uma pesquisa descritivo-exploratória e transversal, com delineamento qualitativo. Participaram deste estudo seis mulheres com idades entre 19 e 37 anos, solteiras, profissionalmente ativas e com diagnóstico de TA. Foram realizadas entrevistas individuais, cujo conteúdo audiogravado foi posteriormente submetido à análise de conteúdo temática. Os motivos do abandono incluíram questionamentos relativos ao protocolo de tratamento, à equipe terapêutica, além de questões pessoais. Os aspectos multifatoriais envolvidos na dinâmica do abandono do tratamento indicam a necessidade de maior capacitação dos profissionais de saúde, especialmente no que concerne ao estabelecimento da aliança terapêutica e acolhimento empático para incrementar a adesão do paciente ao plano terapêutico. O conhecimento dos fatores apontados como desencadeadores de abandono pode contribuir para identificar precocemente indivíduos em risco e implementar medidas terapêuticas que resultem em melhor prognóstico.

Weight suppression and its relation to eating disorder and weight outcomes: a narrative review

Weight suppression (WS) refers to the discrepancy between highest adult weight and current weight, and has been examined as a key construct related to both: eating pathology and weight management. However, despite increasing interest in WS, findings regarding the clinical implications of WS are often conflicting. For instance, WS has been associated with both adaptive and maladaptive outcomes across various populations. Moreover, results regarding the predictive utility of WS within clinical samples have been inconsistent. The current paper aims to provide a narrative review of existing investigation related to WS, highlight gaps in the field's understanding of this construct, and outline recommendations for future study.

The self and eating disorders

In our review, we focus on self-related constructs in the context of eating disorders with four aims. First, we examine a variety of self-related constructs that have been theoretically and empirically linked to the development and course of eating disorders. In addition to the more well-researched constructs of self-esteem and self-efficacy, we also report on findings related to selflessness, contingent self-worth, self-objectification, ego-syntonicity, self-concept clarity, self-compassion, social comparison, self-oriented perfectionism/self-criticism, and narcissism. Second, we discuss self-related constructs that may be especially relevant to comorbidities common among those with eating disorders. Third, we review intervention and prevention programs where self-related constructs play a prominent role. Lastly, we share future research directions regarding self-related constructs and eating disorders that we believe will advance a deeper understanding of the role of the self in the eating disorders.

Eye-tracking research in eating disorders: A systematic review

OBJECTIVE

Those with eating disorders (EDs) show attentional biases to disorder-relevant stimuli, such as food and body shape information. However, attentional bias research in EDs largely relies on reaction time based measures, which are limited in their ability to assess different components and the time course of attention. Eye-tracking paradigms have therefore been utilized to provide greater ecological validity, and directly capture the detailed sequence of processes in perception and attention. While numerous studies have examined eye movements in the mood, anxiety, and psychotic disorders, there has been a lack of studies in EDs. The purpose of this qualitative review is to provide a summary of eye-tracking studies in clinical ED populations.

METHOD

The review was conducted using the PRISMA guidelines. Electronic databases were systematically searched to identify studies examining gaze parameters in ED compared to healthy controls (HCs). Thirty-one studies met inclusion criteria.

RESULTS

Across ED diagnoses, there was evidence of attentional biases towards food and body stimuli. In addition, differential patterns of attention to social information, and differences in smooth pursuit and saccadic eye movements were found in anorexia nervosa (AN).

DISCUSSION

Findings are discussed in relation to research in other psychiatric disorders, and recommendations for future studies using eye-tracking in EDs are given. The findings add to the wider literature on attentional biases in EDs, and provide potential avenues for treatment. IJED-18-0331.R1. Investigación de seguimiento ocular en trastornos de la conducta alimentaria: una revisión sistemática.

Can Recovery From an Eating Disorder Be Measured? Toward a Standardized Questionnaire

Background: There is a clear need for a standardized definition of recovery from eating disorders (EDs) and for self-report instruments to assess where individuals with an ED are situated at a given point of time along their process of illness and recovery. It has been acknowledged that psychological and cognitive symptoms are important to recovery in addition to physical and behavioral indices. This study proposes a 28-item multidimensional questionnaire encompassing the main features of recovery from ED, derived from the endorsement of different criteria by people with a lifetime ED diagnosis, family members and ED clinicians. Methods: Participants were 213 volunteers over the age of 18 (118 people with a lifetime ED diagnosis, 58 healthy family members of people with EDs and 37 ED clinicians), who completed the ED-15 and indicated online how important they thought each of 56 criteria were for recovery from an ED. Results: Four factors were identified in an exploratory factor analysis: Lack of Symptomatic Behavior (LSB), Acceptance of Self and Body (ASB), Social and Emotional Connection (SEC), and Physical Health (PH). Confirmatory factor analysis using the seven highest loading items from each subscale confirmed the structure validity of a shortened version of this questionnaire, the Eating Disorders Recovery Endorsement Questionnaire (EDREQ), which had excellent goodness-of-fit indices. Despite a few between-group differences, there was general agreement that LSB was most salient to recovery, followed by ASB, SEC, and PH in that order. Conclusion: Despite the absence of a standardized definition of recovery from ED, there is a general consensus about its components. The EDREQ is a psychometrically sound questionnaire containing items that people with an ED history, their family members and therapists all define as important components of recovery. The inclusion of emotional and psychosocial aspects of recovery in addition to symptomatic and medical aspects is important to expand treatment goals and the concept of recovery from EDs beyond symptom relief and the absence of disease markers. As a clinical tool, the EDREQ stands to assist in setting and refining therapeutic goals throughout therapy, and in establishing standardized, comparable norms for recovery levels in research.

Barriers to hospital admission among people with eating disorders: A qualitative internet-based study

We seek to describe the barriers that people with eating disorders (EDs) face when undertaking a decision about whether to be admitted for inpatient treatment. Data were retrieved from a moderated ED Internet community website. A descriptive phenomenological approach was used to explore the shared experiences of community members who posted information about their viewpoints on inpatient admission. Three themes emerged: (i) 'Can I let others help me?' addressed the question of participants' ability to cooperate with hospital staff; (ii) 'Can I give up my daily routine?' focused on participants' meaningful lives outside of their ED (school, work, family, friends); and (iii) 'Can inpatient treatment work?' revealed a general lack of faith in the ability of inpatient treatment to make a substantial positive contribution. Our findings highlight the difficulties associated with making a decision about inpatient admission and suggest implications for mental-health professionals.

Social anxiety in the eating disorders: a systematic review and meta-analysis

Social anxiety disorder is one of the most common comorbid conditions in eating disorders (EDs). The aim of the current review and meta-analysis is to provide a qualitative summary of what is known about social anxiety (SA) in EDs, as well as to compare levels of SA in those with EDs and healthy controls. Electronic databases were systematically searched for studies using self-report measures of SA in ED populations. In total, 38 studies were identified, 12 of which were included in the meta-analyses. For both anorexia nervosa (AN) and bulimia nervosa, there were significant differences between ED groups and HCs, with medium to large effect sizes. Findings from the qualitative review indicate that levels of SA are similar across the ED diagnoses, and SA improves with treatment in AN. In addition, high levels of SA are associated with more severe ED psychopathology, but not body mass index. These findings add to the wider literature on socio-emotional functioning in EDs, and may have implications for treatment strategies.

A Novel In-Home Relapse Prevention Treatment for Anorexia Nervosa

Anorexia nervosa (AN) is a difficult-to-treat mental illness associated with dangerous behavioral symptomatology. Interventions that augment the outcomes of existing inpatient and outpatient protocols for AN are critically needed. In-home treatments that address environmental change as a means to further promote behavior change have been applied for the care of multiple behaviorally based psychiatric illnesses, but not for eating disorders. The present study outlines the pilot application of a posthospitalization, four-session in-home relapse prevention treatment for a woman with a long history of AN. Over a 1-, 3-, and 6-month follow-up period, the patient exhibited substantial improvements in eating disorder symptomatology, sustained a healthy body mass index, and maintained positive environmental changes made by the end of treatment. The treatment was feasible and readily accepted by the patient. These positive findings suggest that more formalized research to further evaluate this novel adjunctive treatment for AN is warranted.