Eating Disorder Examination Questionnaire (EDE-Q): norms for young adult women

Body image disorders: A new theoretical model supporting the reclassification

The present study aims to test a new theoretical model for grouping Anorexia nervosa (AN), bulimia nervosa (BN), body dysmorphic disorder (BDD), and muscle dysmorphia (MD) as Body Image Disorders. In a sample composed of 579 individuals from the community, we used exploratory bifactor modeling to investigate the presence of a higher-order general component in these disorders and identify shared and unique components within each condition. Additionally, we explored the relationships between the assessment instruments' total scores and external variables to assess the distinctiveness of the factors in our model. Our findings indicate the existence of a common general factor encompassing body image disturbance across these disorders. Furthermore, the factor decomposition reveals distinct factors for BDD, MD, and AN/BN, supporting the notion that these are separate conditions despite their shared central element. Other commonalities and differentiation points between the disorders are also identified through decomposition analysis. The external correlations examined provide further support for the bifactor modeling findings. Our evidence supports the recommendation for reclassification of AN, BN, BDD, and MD as Body Image Disorders, which may enable a more precise theoretical understanding that emphases this central component of these conditions.

Predictors of Intensive Enhanced Cognitive Behavioral Therapy for Anorexia Nervosa. Prospective Cohort Study

OBJECTIVE

This study investigates baseline predictors of treatment response in patients with anorexia nervosa (AN) who received an intensive 20-week program of enhanced cognitive behavioral therapy (CBT-E). The aim was to identify demographic, clinical, and psychosocial variables that predict treatment outcomes at the end of intensive treatment-inpatient followed by day patient (EOIT) and 20-week follow-up.

METHOD

A prospective cohort study was conducted with 421 patients aged 16-63 years (mean age = 25.4 years) consecutively admitted for intensive CBT-E. Baseline assessments included body mass index (BMI), eating disorder psychopathology (EDE-Q), general psychopathology, and functional impairment.

RESULTS

Of the 421 patients, 82.7% completed the treatment, and 70.6% attended the 20-week follow-up. Considering the intent-to-treat analysis, 83.2% of patients had a "good BMI outcome" and 63.3% had a "full response" and "full recovery" at EOIT. At the 20-week follow-up, 58.7% maintained a "good BMI outcome" and 51.5% remained in "full response" and "full recovery." A higher baseline BMI was a significant predictor of achieving a good BMI outcome at EOIT and follow-up. Full response at EOIT was associated with lower baseline EDE-Q scores, while at follow-up, it was predicted by higher baseline BMI, lower EDE-Q, and larger BMI and EDE-Q changes during treatment.

CONCLUSIONS

BMI and eating-disorder psychopathology are key predictors of treatment outcomes in patients with AN undergoing intensive CBT-E. These findings emphasize the importance of early weight gain and reductions in eating disorder psychopathology as treatment targets to enhance outcomes in this population.

Emotional overload in Bulimia Nervosa: an ERP study of emotion processing and regulation

OBJECTIVE

People with Bulimia Nervosa (BN) self-report difficulties processing and regulating emotions. However, self-reports have been shown to be biased, particularly with people with BN who have difficulties describing their emotions. Self-reports also cannot easily disentangle between early processing and later regulatory stages, so it is not clear whether people with BN really do process their emotions more intensely or whether this is due to the aftermath of regulatory difficulties. This study aimed to use an objective way to measure (1) whether people with BN process their emotions with higher intensity compared to healthy controls (HC) and (2) whether they can successfully implement an emotion regulation strategy called cognitive reappraisal.

METHODS

We developed a neuroimaging task using electroencephalography to answer these questions, using the Late Positive Potential (LPP) as an objective measure of emotional arousal at the processing and regulatory stages. We tested the task in females with BN (N = 32) and matched HC (N = 35).

RESULTS

We found that our BN group showed higher LPP compared to our HC group when viewing emotional pictures, demonstrating increased emotional intensity at the processing stage. We also found that the LPP for reappraisal took longer to get back to baseline for our BN group compared to the maintain condition and our HC group.

DISCUSSION

Our results suggest that people with BN process their emotions with higher intensity and may struggle to implement subsequent cognitive reappraisal strategies when affect is high. This has direct implications for clinicians who should be aware that when evoking affect in treatment, people with BN may need greater support in understanding and managing their emotions. Clinicians may also want to offer distress tolerance skills to reduce emotional arousal before suggesting using cognitive reappraisal skills to manage strong emotions.

The Link Between Physical Activity, Nutrition, and Health: A Cross-Sectional Study with Multivariate Analysis in a Young and Predominantly Female Spanish Sample

BACKGROUND

Physical activity and nutrition play a crucial role in maintaining overall health and well-being. This cross-sectional study analyzes the relationship between physical activity habits and dietary patterns in the Spanish population.

METHODS

Data were collected through validated questionnaires: the Nutritional and Social Healthy Habits scale (NutSo-HH) for nutritional and lifestyle habits and the Global Physical Activity Questionnaire for physical activity distributed via social media from June to November 2024.

RESULTS

The sample included 1534 respondents (67% female), aged 18-65+ years, with diverse educational, income, and living conditions. Socio-demographic, nutritional, lifestyle, and physical activity data were analyzed using non-parametric statistical tests and Principal Component Analysis. On average, participants engaged in 96.7 min/week of high-intensity physical activity and 118 min/week) of moderate-intensity physical activity. While 75% met the WHO recommendations for moderate activity, only 40% reached optimal levels of high-intensity activity. Individuals engaging in higher levels of physical activity, particularly high-intensity exercise, reported better self-perceived health, lower obesophobia, and better body image. Additionally, a positive correlation was found between higher physical activity levels and the consumption of fruits, vegetables, legumes, and fish, while individuals with lower physical activity levels demonstrated a higher intake of ultra-processed and fried foods.

CONCLUSIONS

The Principal Component Analysis revealed a bidirectional relationship between the alignment of healthy dietary habits and increased physical activity. These findings highlight the importance of promoting both physical activity and balanced nutrition to enhance overall health and lifestyle quality.

Typologies of childhood maltreatment and associations with internalizing symptoms among university students in Singapore: A latent class analysis

This study used Latent Class Analysis to identify typologies of childhood maltreatment (CM) and the associations of CM with five internalizing symptoms. A sample of 1,042 university students in Singapore answered online self-report questionnaires, inclusive of Childhood Trauma Questionnaire, a modified version of the 14-item Center for Epidemiologic Studies Depression Scale derived from the CES-D, Beck Anxiety Inventory, Post-traumatic Stress Disorder Checklist, Eating Disorder Examination-Questionnaire (version 6.0), and Suicidal Ideation Attributes Scale. These measures respectively assessed CM and current internalizing symptoms, namely, depressive symptoms, anxiety symptoms, PTSD, eating disorder, and suicidal ideation. The most common type of CM was childhood emotional neglect (74.6%), followed by childhood emotional abuse (61%). Men were more likely to experience childhood physical abuse compared to women; contrarily, women were two times more likely to report childhood emotional abuse compared to men. The findings of Latent Class Analysis revealed four distinct latent classes of CM: Low CM, high/multiple CM, moderate to high abuse/victimization, and moderate to high neglect. Students in the latter three CM classes were more likely than those in the Low CM class to report the internalizing symptoms. These findings indicate the importance of protecting children from CM and cushioning the adverse effects of CM on victims by providing timely intervention, both of which would be best achieved with the education of professionals, caregivers and the public alike, and improvements to current programs and practices.

'Do no harm' - the impact of an intervention for addictive eating on disordered eating behaviours in Australian adults: secondary analysis of the TRACE randomised controlled trial

BACKGROUND

Designing interventions to change addictive eating behaviours is a complex process and understanding the treatment effect on co-occurring disordered eating behaviours is of importance. This study aimed to explore treatment effects of the TRACE (Targeted Research for Addictive and Compulsive Eating) intervention for addictive eating on eating disorder psychopathology, binge eating, reward driven eating and grazing behaviours.

METHODS

This study involved secondary analysis of data from a randomised control trial among 175 participants (18-85 yrs) endorsing ≥ 3 Yale Food Addiction Scale (YFAS) symptoms who were randomly allocated to (1) active intervention, (2) passive intervention, or (3) control group. Change in YFAS, EDE-Q 6.0, Binge Eating Scale, RED-X5 and Short Inventory of Grazing scores were assessed at 3-months (immediate post-intervention) and 6-months (3-months post-intervention) follow-up.

RESULTS

Using Linear Mixed Models, from baseline to 3-months there was a significant reduction in eating disorder global scores in the active intervention [mean decrease - 0.6 (95% CI: -0.8, -0.4)], but not in the passive intervention [-0.2 (95% CI: -0.5, 0.1)] or control groups [-0.1 (95% CI: -0.3, 0.1)]. In the active and passive intervention groups there were significant reductions in reward driven eating [-3.8 (95% CI: -4.9, -2.7; -2.5 (95% CI: -3.9, -1.1), respectively], compulsive grazing (-1.8 (95% CI: -2.4, -1.3); -1.1 (95% CI: -1.7, -0.5), respectively] and non-compulsive grazing scores (-1.4 (95% CI: -1.9, -1.0); -1.1 (95% CI: -1.7, -0.4), respectively], but not in the control group. The reduction in binge eating scores over time was similar for all groups. The reduction in addictive eating symptoms from baseline to 3-months was positively associated with the reduction in eating disorder global scores, binge eating, reward driven eating and grazing behaviours (rs ranged from 0.23 to 0.69).

CONCLUSION

The dietitian-led TRACE intervention which adopted a weight-neutral, harm reduction approach for the management of addictive eating in adults demonstrated positive effects on some co-occurring disordered eating behaviours. Importantly the intervention did not cause any adverse changes in the eating disorder pathologies measured.

TRIAL REGISTRATION

Australia New Zealand Clinical Trial Registry ACTRN12621001079831.

Pragmatic Indicated Prevention and Early Intervention for Disordered Eating: A Randomized Controlled Trial of Media Smart Targeted Internet Program in Youth

OBJECTIVE

We evaluated 3 new features of Media Smart Targeted (MST), an 8-module Internet, self-guided, indicated prevention and early intervention for disordered eating (DE): a broader audience, optimal rate of program delivery, and impact on social media (SM) behaviors.

METHOD

Participants (N = 555, aged 13-25 years, of any gender, from Australia and New Zealand) were randomized to: MST-Flexible (MST-F: user accesses modules at own rate, n = 184); MST-Standard (MST-S: weekly module release, n = 187); and control (body image tips, n = 184). Primary (Eating Disorder Examination-Questionnaire [EDE-Q] Global and DE diagnostic status), secondary (DE risk factors) and tertiary (SM) outcome measures were completed at baseline and at post-program, 6-month, and 12-month follow-up.

RESULTS

A total of 52.2% of participants randomized to MST-F or MST-S accessed their intervention. Modified intent-to-treat analyses (n = 378) included these participants (MST-F = 109; MST-S = 84) and all controls (n = 184) showed MST-F participants were more likely to complete each module and full program than MST-S participants. More favorable outcomes for EDE-Q Global were reported in the MST-F condition than control. MST-F and MST-S participants with baseline DE were 94% and 92% respectively less likely than controls to meet DE criteria at any point from post program onward (n = 36). Compared to controls, participants in the MST-F condition experienced significant improvements regarding regular eating, clinical impairment, internalization, and SM behaviors, including reduced appearance comparisons, following of appearance-based influencers, use of TikTok, and fewer SM accounts.

CONCLUSION

Although self-guided Internet interventions have lower completion rates and more modest effects than face-to-face indicated prevention programs, MST-F can be delivered at scale, with low cost and greater flexibility in target audience, to achieve meaningful reductions in DE risk, symptoms, and SM behaviors.

CLINICAL TRIAL REGISTRATION INFORMATION

A randomised controlled trial of an efficacious school-based eating disorder risk reduction program: A comparison of 2, 4 and 8 lessons; https://www.anzctr.org.au/Trial/Registration/TrialReview.aspx?id=377675 DIVERSITY & INCLUSION STATEMENT: We worked to ensure sex and gender balance in the recruitment of human participants. We worked to ensure that the study questionnaires were prepared in an inclusive way. The author list of this paper includes contributors from the location and/or community where the research was conducted who participated in the data collection, design, analysis, and/or interpretation of the work.

Understanding eating disorder symptoms in adolescents: testing a cognitive-behavioural model of eating disorders in a community sample

Clinical perfectionism, self-esteem, mood intolerance, and interpersonal difficulties are associated with eating disorder symptoms in clinical samples. The aim of the current study was to test a model including clinical perfectionism, self-esteem, mood intolerance, and interpersonal difficulties to understand eating disorder symptoms in an adolescent community sample. Adolescents (N = 446, M age = 16.25 years, SD = 1.64; 74.2% female) completed measures of clinical perfectionism, self-esteem, mood intolerance, interpersonal difficulties, and eating disorder symptoms. Path analysis indicated clinical perfectionism, self-esteem, mood intolerance, and interpersonal difficulties were all directly associated with symptoms of eating disorders, and that clinical perfectionism was indirectly associated with eating disorders through self-esteem, mood intolerance, and interpersonal difficulties. The results indicate the cognitive-behavioural model of eating disorders can be applied to adolescents in the community with symptoms of eating disorders. Directional causality between constructs should be established to understand whether increased clinical perfectionism, and reduced self-esteem, mood intolerance, and interpersonal difficulties are vulnerabilities to the development and maintenance of eating disorders.

A model of relationships of teammate relations, body image, and eating behaviors among athletes

Recent studies have identified athletes to be at elevated risk for developing disordered eating habits. However, few studies have investigated the association between teammate interactions and athletes' relationships with food and their body. To address this gap, the current study examined a model in which teammate appearance pressures were associated with disordered eating behaviors and body image concerns among varsity and club athletes who competed in a variety of sports at a US university. A sample of 156 university athletes, mean age = 20.7 years (SD = 1.2) (19.2 % varsity, 80.8 % club, 63.5 % female-identifying), completed self-report measures that assessed teammate pressures, depth of teammate relationships, internalization of athletic body ideals, teammate body comparisons, weight and shape concerns, and muscularity oriented disordered eating behaviors. Path analysis was used to test the hypothetical model, which after modification revealed a good fit to the data. The findings suggest that social frameworks are useful for conceptualizing relationships between teammate pressures and associated body image concerns and disordered eating behaviors. Further, the findings provide insight into how team environments may play an important role in shaping athletes' body image and relationship with food and support the development of prevention interventions that can be implemented at team levels.

Programme-Led and Focused Interventions for Recent Onset Binge/Purge Eating Disorders: Use and Outcomes in the First Episode Rapid Early Intervention for Eating Disorders (FREED) Network

OBJECTIVE

We aimed to compare use of, and outcomes from, programme-led and focused interventions (guided self-help and 10 session cognitive behavioral therapy for eating disorders [CBT-T]) relative to other psychological therapies (including group and individual CBT for eating disorders [CBT-ED]) in a national sample of emerging adults receiving early intervention for a non-underweight binge/purge eating disorder.

METHOD

Data were drawn from 54 English eating disorder services using the First Episode Rapid Early Intervention for Eating Disorders (FREED) model. Participants (N = 1097) had a mean age of 18.95 years (SD 2.42) and diagnoses of bulimia nervosa (n = 506; 45%), binge eating disorder (n = 121; 11%), another specified feeding or eating disorder (n = 460; 42%), or an eating disorder, unspecified (n = 10, 1%). Linear mixed models were used to assess for effects of time and treatment on binge eating and purging, eating disorder psychopathology, depression/anxiety, and body mass index.

RESULTS

11% (n = 117) of patients received guided self-help and 24% (n = 268) received CBT-T. Baseline eating disorder psychopathology and depressive/anxiety symptoms did not differ significantly across the guided self-help, CBT-T, group CBT-ED, and individual CBT-ED conditions. All treatments were associated with significant reductions in symptoms over time. GSH and CBT-T performed comparably to longer CBT-ED.

DISCUSSION

We provide additional evidence for the effectiveness of GSH and CBT-T in the treatment of non-underweight binge/purge eating disorders. Programme-led and focused interventions may be under-utilized and future research should explore when they are offered, and when not, both within and outside of early intervention settings.

Breaking the cycle: a pilot study on autonomous Digital CBTe for recurrent binge eating

Background

Only a minority of people with eating disorders receive evidence-based psychological treatment. This is especially true for those with recurrent binge eating because the shame that accompanies binge eating affects help seeking and there is a shortage of therapists to provide psychological treatments. Digital programme-led interventions have the potential to overcome both barriers.

Objective

This study examined the acceptability and effectiveness of a new digital programme-led intervention directly based on enhanced cognitive behaviour therapy (CBT-E), which is an empirically supported psychological treatment for eating disorders.

Methods

One hundred and ten adults with recurrent binge eating (self-reporting characteristics consistent with binge eating disorder, bulimia nervosa, and similar conditions) were recruited through an advertisement on the website of the UK's national eating disorder charity, Beat. The intervention, called Digital CBTe, comprised 12 sessions over 8-12 weeks delivered autonomously (i.e., without external support). Participants completed self-report outcome measures of eating disorder features and secondary impairment at baseline, post-intervention, and 6-month follow-up.

Results

Most participants identified as female, White, and were living in the United Kingdom. Most participants (85%) self-reported features that resembled binge eating disorder, and the rest self-reported features that resembled bulimia nervosa (8%) and atypical bulimia nervosa (7%). On average, participants reported that the onset of their eating disorder was more than twenty years ago. Sixty-three percent of the participants completed Digital CBTe (i.e., completed active treatment sessions). Those who completed all sessions and the post-intervention assessment (n = 55, 50%) reported significant decreases in binge eating, eating disorder psychopathology, and secondary impairment at post-intervention. These improvements were maintained at follow-up. Large effect sizes were observed for all these outcomes using a completer analysis and post-intervention data (d = 0.91-1.43). Significant improvements were also observed for all outcomes at post-intervention in the intent-to-treat analysis, with medium-to-large effect sizes.

Discussion

A substantial proportion of those who completed Digital CBTe and the post-intervention assessment experienced marked improvements. This provides promising data to support the conduct of a fully powered trial to test the clinical and cost-effectiveness of autonomous Digital CBTe.

Eating disorders and disordered eating symptoms in individuals at clinical high risk for psychosis: a systematic review and meta-analysis

BACKGROUND

Eating disorders (EDs) are among the least studied mental disorders in individuals at clinical high risk for psychosis (CHR-P). The primary aim (a) of this systematic review and meta-analysis was to identify factors predicting ED diagnoses in CHR-P individuals. The secondary aim (b) was providing a comprehensive clinical description of individuals with both CHR-P and EDs/ED-related symptoms.

METHODS

Preferred Reporting Items for Systematic reviews and Meta-Analyses (PRISMA) 2020-compliant systematic review and meta-analysis, searching PubMed/(EBSCO)PsycINFO/Web of Science for studies published between 01/01/2018 and 30/05/2023, including individuals with CHR-P and EDs/ED symptoms (PROSPERO CRD42023488792). Quality assessment was performed using the Newcastle-Ottawa Scale (NOS). We performed a meta-regression model on the proportion of EDs in CHR-P individuals (primary aim) and conducted a narrative synthesis (secondary aim).

RESULTS

We included 26 articles, reporting on 2,060 and 589 subjects for study aim (a) and (b), respectively (mean NOS score = 6.38). The prevalence of EDs in CHR-P individuals was 0.05 (95% CI 0.3-0.8). No factor had a significant effect on the proportion of EDs in CHR-P individuals. This result is limited by the inability to include ED-related symptoms and antipsychotic prescriptions in the meta-regression model, due to an insufficient number of studies reporting on these variables. The narrative synthesis offers a characterization of individuals with both CHR-P and ED/ED-related symptoms; however, the limited number of included studies is insufficient to support definitive conclusions.

CONCLUSIONS

No significant predictor of EDs was found in CHR-P individuals. Transdiagnostic, prospective cohort studies are warranted to examine long-term outcomes in individuals with both CHR-P and EDs, beyond diagnostic silos.

LEVEL OF EVIDENCE

I. Systematic review and meta-analysis.

Early response in people with anorexia nervosa receiving cognitive-behavioural therapy for eating disorders (CBT-ED): a latent change study

OBJECTIVE

Early improvement predicts good outcome in psychotherapy for eating disorders. Prior studies have examined change in body mass index (BMI) or Eating Disorder Examination Questionnaire scores (EDE-Q) as indicators of early response, but not both simultaneously. Little research has examined early change among Anorexia Nervosa (AN) samples treated with eating disorder-focussed cognitive behavioural therapy (CBT-ED). We studied the process of early change in a fine-grained way to better understand whether early response predicts later response and post-treatment outcomes in CBT-ED for AN, and how the changes in EDE-Q and BMI are related.

METHOD

Adults (N = 193) diagnosed with AN were treated with outpatient CBT-ED. We used bivariate Latent Change Score models to examine change in BMI and EDE-Q and relations between them.

RESULTS

Early change in BMI was independent of early change in EDE-Q. Larger changes in EDE-Q over the first five weeks of therapy followed smaller ones over the next five weeks, meanwhile smaller changes followed larger ones. Early change was predictive of post-treatment scores.

CONCLUSION

Early change in BMI and EDE-Q during CBT-ED appear to be unrelated and follow different trajectories. Therefore, individuals declared as early responders may differ depending on which variable is used for the decision.

The experiences of a therapeutic relationship between dietitians and patients in UK eating disorder treatment: A qualitative study

OBJECTIVE

Dietitians have a central role in eating disorder (ED) treatment, however few studies exist investigating therapeutic aspects of dietetic care and factors influencing the dietitian-patient relationship. To address the gap, this study aimed to use a qualitative description approach to explore the experiences of delivering and receiving dietetic care in ED treatment in the UK.

METHOD

Semi-structured interviews were conducted with 6 specialist ED dietitians and focus groups with 11 recovered ED patients. Interviews were transcribed and inductive thematic analysis was performed to identify key themes describing the data.

RESULTS

Six key themes were generated: (1) Building trust, (2) Appropriate timing, (3) Adapting, (4) Dietitians as experts, (5) Boundaries, and (6) Difficult relationships. Participants highlighted the importance of building trust and considering nutritional risk and readiness in treatment approach. Patients expressed a desire for dietitians to have experience in EDs, facilitating understanding of their illness. However, dietitians identified the nature of EDs making their role challenging at times.

DISCUSSION

This study described various factors affecting dietetic care in EDs and provided a valuable insight into patients' perceptions of treatment. The findings support advancements in ED dietitians' knowledge and understanding, helping to enhance quality of care.

Effect of time restricted eating versus current practice in dietetics on glycaemic control and cardio-metabolic outcomes in individuals at risk of developing type 2 diabetes: Protocol for a multi-centre, parallel group, non-inferiority, randomised controlled trial

BACKGROUND

Time restricted eating (TRE) is a dietary strategy that may improve metabolic health. However, no studies have compared TRE with current practice (CP) in dietetics.

HYPOTHESIS

TRE will not be inferior to CP to improve glycaemic control in individuals at risk of type 2 diabetes (T2D).

METHODS

This parallel group, randomised, non-inferiority, controlled trial randomised 247 participants by site and glycated haemoglobin (HbA1c) into TRE or CP (1:1) for 12 months. Participants were aged 35-70 years, with a body mass index (BMI) >25 but <45 kg/m2, and score ≥15 on the Australian type 2 diabetes risk (AUSDRISK) assessment, without a diagnosis of T2D. Study visits were balanced between groups and all participants received five consultations at 0, 0.5, 1, 2 and 3 months. TRE followed a self-selected 9 h eating window (≥0600 and ≤1900), whereas CP followed Australian dietary guidelines.

OUTCOMES

The primary endpoint is the estimate of group mean difference (TRE vs CP) of HbA1c at 4 months in a covariate linear regression adjusting for stratification factors and sex. Secondary efficacy outcomes at 4 and 12 months are changes in fasting glucose, fasting insulin, HOMA-IR and nocturnal glucose by continuous glucose monitor incremental area under the curve and change in HbA1c at 12 months. Other endpoints are exploratory and will not be adjusted for multiplicity.

CONCLUSIONS

We will determine whether TRE is an alternate strategy to current practice in dietetics to improve glucose control.

TRIAL REGISTRATION

NCT04762251; 21 Feb 2021.

Eating Disorders in Adolescents and Young Adults: A Program Evaluation of a Canadian Eating Disorder Treatment Program

BACKGROUND

Current treatments for adolescents with eating disorders (ED) show limited effectiveness, emphasizing the need for enhanced therapeutic approaches. Cognitive behavioral therapy (CBT) has emerged as a potential alternative. A derivative of this approach, group cognitive behavioral therapy (G-CBT), has been shown to reduce treatment costs and increase treatment accessibility when compared to CBT. This program evaluation aimed to assess the effectiveness of G-CBT in adolescents and young adults diagnosed with anorexia nervosa (AN) or bulimia nervosa (BN) and experiencing comorbid anxiety and depression within a Canadian mental health facility. The specific objectives were to determine if participants increased their knowledge about eating normalization and coping strategies after participating in the eating disorder (ED) treatment program and examine if participants experienced changes in eating-disordered behavior, anxiety, and mental health.

METHODS

We conducted a program evaluation using secondary data collected at admission and discharge from 44 adolescents and young adults (16-39 years) with AN or BN participating in the ED program at a Canadian health center. Outcome measures were eating psychopathology, depression, anxiety, and illness cognitions assessed using validated tools: Eating Disorder Examination Questionnaire (EDE-Q), Patient Health Questionnaire-9 (PHQ-9), General Anxiety Disorder-7 (GAD-7), and Illness Cognition Scale (ICS).

RESULTS

The mean age of participants was 24.1 years (standard deviation (SD) = 5.8). All outcome measures showed statistically significant improvement from admission to discharge (p < 0.001). Specifically, subscales of the EDE-Q (eating concern, weight concern, shape concern, and restraint) and the global score indicated a significant reduction in ED behaviors (p < 0.001).

CONCLUSION

Findings suggest that G-CBT is effective in reducing eating-disordered behavior, depression, anxiety, and maladaptive illness cognitions in adolescents and young adults with EDs. These results underscore the potential of G-CBT to address both behavioral and psychological aspects of ED recovery, although further studies with control groups are warranted to confirm these findings.

Anorexia nervosa polygenic risk, beyond diagnoses: relationship with adolescent disordered eating and behaviors in an Australian female twin population

BACKGROUND

It is well established that there is a substantial genetic component to eating disorders (EDs). Polygenic risk scores (PRSs) can be used to quantify cumulative genetic risk for a trait at an individual level. Recent studies suggest PRSs for anorexia nervosa (AN) may also predict risk for other disordered eating behaviors, but no study has examined if PRS for AN can predict disordered eating as a global continuous measure. This study aimed to investigate whether PRS for AN predicted overall levels of disordered eating, or specific lifetime disordered eating behaviors, in an Australian adolescent female population.

METHODS

PRSs were calculated based on summary statistics from the largest Psychiatric Genomics Consortium AN genome-wide association study to date. Analyses were performed using genome-wide complex trait analysis to test the associations between AN PRS and disordered eating global scores, avoidance of eating, objective bulimic episodes, self-induced vomiting, and driven exercise in a sample of Australian adolescent female twins recruited from the Australian Twin Registry (N = 383).

RESULTS

After applying the false-discovery rate correction, the AN PRS was significantly associated with all disordered eating outcomes.

CONCLUSIONS

Findings suggest shared genetic etiology across disordered eating presentations and provide insight into the utility of AN PRS for predicting disordered eating behaviors in the general population. In the future, PRSs for EDs may have clinical utility in early disordered eating risk identification, prevention, and intervention.

The role of eco-anxiety in the presentation of bulimia nervosa: a case report

BACKGROUND

Despite a growing literature demonstrating the significant impacts of climate change on mental health, research is urgently needed to investigate how climate change-related concerns may contribute to the development, exacerbation, or re-emergence of eating disorders, as well as affect the effectiveness of existing interventions. This case report contributes to this scant knowledge base by offering empirical evidence for how responses to climate change can influence eating disorder symptoms and, importantly, limit the effectiveness of evidence-based treatments such as Cognitive Behavior Therapy-Enhanced (CBT-E).

CASE PRESENTATION

A 24-year-old female graduate student studying environmental science presented to a specialized eating disorder clinic with worsening bulimia nervosa. Her symptoms initially improved with CBT-E; however, after three months, concerns about food waste significantly impeded further progress. The therapist, identifying symptoms of eco-anxiety, adapted standard CBT-E strategies to include psychoeducation about eco-anxiety, cognitive restructuring of beliefs about food waste and other eating-related eco-concerns, relevant exposures related to such concerns, and problem-solving to increase social support. These adaptations led to resumed progress, with the patient achieving nutritional adequacy by treatment end (38 sessions) and maintaining treatment gains through one year follow-up.

CONCLUSIONS

To our awareness, this is the first case report on the co-occurrence of eco-anxiety and eating disorders. This case underscores the importance of screening for concurrent eco-anxiety, suggests ways in which eating disorders and eco-anxiety can influence one another longitudinally, describes how coexisting eco-anxiety can limit standard CBT-E's effectiveness, and provides examples of successful treatment adaptations tailored to address eco-anxiety-related concerns.

Trajectories of negative affect prior to and following disordered eating behaviors among women with eating disorder pathology: An examination of the role of state-interoception

OBJECTIVE

Affect regulation theories of eating disorders (ED) posit that negative affect increases in the hours before and decreases following disordered eating behaviors (DEBs) in daily life, yet findings from studies assessing affective changes post-DEBs are mixed. This inconsistency may be due to the previously unassessed role of other transdiagnostic processes in these associations, such as interoception (the ability to sense and integrate information from bodily sensations). To address this research gap, the present study examined whether different interoception dimensions moderated negative affect trajectories surrounding DEBs in the natural environment.

METHOD

150 women with ED pathology (Mage = 21.0, SD = 4.1) completed 4 surveys targeting affect and DEBs each day for a 10-day ecological momentary assessment period. Polynomial multilevel models examined negative affect trajectories pre- and post-DEBs (dietary restriction, overeating, loss of control eating), and whether these trajectories varied based on daily interoception dimensions (not distracting, self-regulation, body listening and trust).

RESULTS

Negative affect increased prior to loss of control eating-but not dietary restriction or overeating-and decreased following all DEBs. Further, the magnitude of the decrease in negative affect that emerged post-dietary restriction decreased in strength as daily "not distracting" interoception increased. The other interoception dimensions did not moderate negative affect trajectories surrounding DEBs.

CONCLUSIONS

Allowing oneself to experience (vs. distract from) uncomfortable bodily sensations may weaken affect dysregulation processes that follow dietary restriction in daily life and are theorized to maintain DEBs. These results provide insight that may strengthen EDs theories, research, and inform interoception-focused interventions.

Association of Dietary Habits with Eating Disorders among Latvian Youth Aged 18-24

Eating disorders are serious health issues among young people that contribute to increased morbidity rates. The prevalence and severity of eating disorders among Latvian youth aged 18-24 and their relationship with the Healthy Eating Index, dietary habits, and BMI were analyzed in the present study. At the beginning of the study, 190 respondents participated by completing the SCOFF questionnaire, from which the sample group was selected based on the criterion of SCOFF ≥ 2. For the next stage of the study, the responses of 74 participants who completed the EDE-Q-6 questionnaire and the Canadian Food Intake Screener were analyzed. The symptoms of eating disorders were identified in 38.9% of the respondents (SCOFF ≥ 2). The global score of the EDE-Q-6 was 2.00 ± 1.81 where subscales such as body shape concerns (2.93 ± 1.44) and weight concerns (2.68 ± 1.36) were the most important factors that young people paid attention to. The severity of eating disorders was 3.20 for males and 2.62 for females, where a score of 4 and above is classified as an eating disorder. Participants with eating disorder symptoms had a higher BMI, with females having a BMI of 22.5 (normal weight) and 25.5 for males (overweight). The study sample had a poor diet, as the Healthy Eating Index was 8.7 with a maximum score of 24. Weak negative correlations were found between eating disorder severity and eating habits. The issue of eating disorders is topical among young people in Latvia, which requires solutions such as the inclusion of educational programs on healthy nutrition and eating disorders, and psychological support for young people.

Eating Disorder Examination-Questionnaire: Norms for Adults in Higher Levels of Care

Establishing normative data for questionnaires is essential for the accurate interpretation of scores, given that these norms can vary according to different subpopulations and treatment contexts. The purpose of this study was to establish norms for the Eating Disorder Examination-Questionnaire (EDE-Q) among adults receiving higher levels of care (HLOCs) for the treatment of eating disorders. Participants were 2,283 people receiving treatment at the inpatient, residential, partial hospitalization, or intensive outpatient levels of care. The EDE-Q was completed at admission. Patients with anorexia nervosa-restricting subtype (AN-R) had the lowest EDE-Q Global scores when compared with all other eating disorder diagnoses. When compared with intensive outpatient care, only those in residential treatment had higher EDE-Q Global scores. This study is among the first to describe norms for the EDE-Q in a large sample of adults receiving various HLOCs. Programs utilizing the EDE-Q to assess treatment outcomes can use these findings to aid people in interpreting their scores.

Identifying factors that predict the onset and persistence of fasting for weight control: Prospective findings

OBJECTIVE

Fasting for weight control is an under-studied behaviour implicated in eating disorders. However, little is known about what factors account for its onset and persistence.

METHOD

This study sought to identify risk and maintenance factors for fasting among 1025 women recruited through an eating disorder self-help platform who completed study measures at baseline and 6 month follow-up. Univariate and multivariate logistic regressions were performed to test which variables at baseline predicted the onset (vs. stably asymptomatic) and persistence (vs. remission) of fasting at follow-up.

RESULTS

Univariate models showed that higher baseline overvaluation, dissatisfaction, fear of weight gain, generalised and social anxiety, depression, self-esteem deficits and eating disorder symptoms (inflexible eating rules, driven exercise) predicted greater likelihood of fasting onset. Only fear of weight gain and depressive symptoms remained significant in the multivariate model. Higher baseline overvaluation, fear of weight gain, driven exercise, inflexible eating rules, and depression predicted greater likelihood of fasting persistence in univariate models. An adherence to inflexible eating rules and overvaluation remained significant in the multivariate model.

CONCLUSION

Findings shed new light on factors that may account for the development and maintenance of fasting, which have implications for guiding effective interventions targeting this behaviour.

Body checking and avoidance among dancers

Dancers are at heightened risk for eating disorders (EDs) and have job and training demands that obscure ED assessment and likely impede treatment. Two behavioral manifestations of ED psychopathology that may present uniquely in a dance environment are body checking and body avoidance. The current study sought to provide a foundational understanding of the phenomenology of body checking and avoidance among dancers by assessing the reliability (i.e., internal consistency) of existing body checking and avoidance measures and the relationships, or convergent validity, between measures of body checking and avoidance and measures of related constructs. Eighty professional and pre-professional (i.e., conservatory level) dancers (78.8 % female) from seven dance genres completed self-report measures of body checking and avoidance, ED pathology, clinical perfectionism, depression, and anxiety. Across the dancer sample, body checking and avoidance measures demonstrated adequate internal consistency. More frequent body checking and body avoidance was strongly related to higher levels of ED pathology. There were moderate to strong correlations between body checking and body avoidance and clinical perfectionism, depression, and anxiety such that higher body checking and body avoidance was related to higher clinical perfectionism, depression, and anxiety. Exploratory analyses found no significant differences between ballet dancers and dancers of other dance genres; professional dancers scored in the normative range on measures of body checking and body avoidance. Dancers' qualitative descriptions of body checking and avoidance revealed behaviors not included in existing questionnaires, such as unique mirror use behaviors, technology-assisted body checking, and the checking and avoidance of body parts relevant to the dance-specific body ideal. Results support the inclusion of body checking and avoidance interventions in ED treatments for dancers (particularly pre-professional dancers) and emphasize the need for dancer-specific ED assessment methods.

Eating disorder symptom non-endorsers in hospitalised patients with anorexia nervosa: Who are they?

OBJECTIVE

Impaired insight and illness denial are common in anorexia nervosa (AN). Missing an AN diagnosis may delay treatment and negatively impact outcomes.

METHOD

The current retrospective study examined the prevalence and characteristics of AN symptom non-endorsement (i.e., scoring within the normal range on the Eating Disorder Examination Questionnaire [EDE-Q] or the Eating Disorder Examination [EDE] interview) in three independent samples of hospitalised patients with AN (N1 = 154; N2 = 300; N3 = 194). A qualitative chart review of a subsample of non-endorsers (N4 = 32) extracted reports of disordered eating behaviours observed by the treatment team.

RESULTS

The prevalence of non-endorsement ranged from 11% to 34% across sites. Non-endorsers were more likely to be diagnosed with AN restricting type (AN-R) and reported fewer symptoms of co-occurring psychopathology than endorsers. Groups benefitted equally from treatment. The qualitative chart review indicated that objective symptoms of AN were recorded by staff in over 90% of non-endorsers.

CONCLUSIONS

Eating disorder symptom assessments using the EDE-Q or EDE may miss symptomatology in up to a third of individuals hospitalised with AN. This study highlights the potential utility of multi-modal assessment including patient interviews, collateral informants, and behavioural observation to circumvent non-endorsement.

Illness duration and treatment outcome of intensive cognitive-behavioral therapy in adolescents with anorexia nervosa

OBJECTIVE

This study aimed to compare the effectiveness of an intensive treatment based on enhanced cognitive-behavioral therapy (CBT-E) in patients aged between 12 and 18 years with anorexia nervosa with a duration of illness <3 versus ≥3 years.

METHODS

One hundred and fifty-nine consecutively treated patients (n = 122 with illness duration <3 years and n = 37 ≥ 3 years) were enrolled in a 20-week intensive CBT-E program. All patients underwent assessment at admission, end of treatment (EOT), and 20-week follow-up. The following measures were used: body mass index (BMI)-for-age percentile and percentage of expected body weight (EBW), Eating Disorder Examination Questionnaire, Brief Symptom Inventory, and Clinical Impairment Assessment.

RESULTS

Approximately 81% of eligible patients began the program, with over 80% successfully completing it. Patients with a longer or shorter duration of illness did not show significantly different treatment outcomes. In detail, BMI-for-age percentile and percentage of EBW outcomes were significantly improved from baseline to EOT, remaining stable until 20-week follow-up in both groups. Similarly, in both groups, scores for eating disorder psychopathology, general psychopathology, and clinical impairment decreased significantly at EOT and remained stable from EOT to follow-up. Furthermore, a substantial percentage of adolescents in both groups achieved a good BMI outcome at EOT and 20-week follow-up, with approximately 60% maintaining a full response at the latter time point.

DISCUSSION

These findings suggest that intensive CBT-E appears to be an effective treatment for severely ill adolescent patients with anorexia nervosa, regardless of whether the duration of illness is shorter or longer than 3 years.

PUBLIC SIGNIFICANCE

Existing treatment outcome studies in adolescents, whether randomized controlled trials or longitudinal investigations, typically involve patients with less than 3 years of illness, while data on the treatment outcomes for adolescents with anorexia nervosa with an illness duration of 3 years or over is very limited. Our findings suggest that adolescents with anorexia nervosa, irrespective of the duration of their illness, can derive similar benefits from intensively CBT-E.

Toward a memory perspective on eating psychopathology: An investigation of the types of childhood and adolescence memories that are associated with eating disorder symptoms

The cognitive mechanisms through which specific life events affect the development and maintenance of eating disorders (ED) have received limited attention in the scientific literature. The present research aims to address this gap by adopting a memory perspective to explore the type of life events associated with eating psychopathology and how these events are encoded and reconstructed as memories. Two studies (n = 208 and n = 193) were conducted to investigate the relationship between specific memories and eating disorder psychopathology. Study 1 focused on parent-related memories, while Study 2 examined childhood/adolescence memories. Results from both studies revealed that need thwarting and shame in memories were associated with eating disorder symptoms, but only when individuals drew symbolic connections between these memories and food or eating behavior. Moreover, need thwarting and shame in such memories were associated with other eating and body image outcomes, including uncontrolled eating and body esteem. These results also held after controlling for a host of known predictors of eating disorder psychopathology, such as BMI, perfectionism, or thin ideal internalization. Overall, the present findings suggest that the reprocessing of memories symbolically and idiosyncratically linked to food and eating behavior might be a fruitful clinical intervention.

Reciprocal relations between body dissatisfaction and excessive exercise in college women

Objective: Body dissatisfaction elevates the risk for disordered eating behaviors. Excessive exercise is prevalent among college women and associated with harm. Risk theory posits a bidirectional relationship between risk factors for disordered eating behaviors and the behaviors themselves. This study investigated the longitudinal, reciprocal relationship between body dissatisfaction and excessive exercise.

Participants and methods: College women (n = 302) assessed in August (baseline) and November (follow-up).

Results: Baseline body dissatisfaction significantly predicted increases in excessive exercise endorsement at follow-up, controlling for baseline excessive exercise endorsement and body mass index (BMI). Baseline excessive exercise endorsement predicted increases in body dissatisfaction at follow-up, controlling for baseline body dissatisfaction and BMI.

Conclusions: Findings support the presence of a positive feedback loop between body dissatisfaction and excessive exercise; both predict increases in risk for the other, regardless of weight status. Future research should test whether this process is ongoing and predicts further distress.

Food Addiction Screening, Diagnosis and Treatment: A Protocol for Residential Treatment of Eating Disorders, Substance Use Disorders and Trauma-Related Psychiatric Comorbidity

Food addiction, or ultra-processed food addiction (UPFA), has emerged as a reliable and validated clinical entity that is especially common in individuals seeking treatment for eating disorders (EDs), substance use disorders (SUDs) and co-occurring psychiatric disorders (including mood, anxiety and trauma-related disorders). The clinical science of UPFA has relied on the development and proven reliability of the Yale Food Addiction Scale (YFAS), or subsequent versions, e.g., the modified YFAS 2.0 (mYFAS2.0), as well as neurobiological advances in understanding hedonic eating. Despite its emergence as a valid and reliable clinical entity with important clinical implications, the best treatment approaches remain elusive. To address this gap, we have developed and described a standardized assessment and treatment protocol for patients being treated in a residential program serving patients with psychiatric multi-morbidity. Patients who meet mYFAS2.0 criteria are offered one of three possible approaches: (1) treatment as usual (TAU), using standard ED treatment dietary approaches; (2) harm reduction (HR), offering support in decreasing consumption of all UPFs or particular identified UPFs; and (3) abstinence-based (AB), offering support in abstaining completely from UPFs or particular UPFs. Changes in mYFAS2.0 scores and other clinical measures of common psychiatric comorbidities are compared between admission and discharge.

Starving off death: Mortality salience impacts women's body image and disordered eating

From a Terror Management perspective, the pursuit of thinness that characterizes eating disorders (EDs) is arguably a culturally endorsed way to mitigate death anxiety. In the present studies, we used the mortality salience (MS) paradigm to examine whether priming death increases ED symptoms. We recruited two samples of women from undergraduate (Study 1, N = 120), and clinically relevant (Study 2, N = 154) populations. After priming, participants completed measures of potential confounds (e.g., neuroticism, affect). Next, we assessed ED attitudes and behavior using a portion size estimation task, and measures of body dissatisfaction and eating intention. Study 1 findings were inconsistent with the claimed role of death anxiety in ED related behavior. However, in Study 2, MS priming led to increased dissatisfaction with current thinness and smaller portion sizes for high-fat compared to low-fat food. Overall, the results suggest that death anxiety may, at least partially, drive ED symptoms.

Intensive Cognitive Behavioral Therapy for Adolescents with Anorexia Nervosa Outcomes before, during and after the COVID-19 Crisis

Studies comparing treatment outcomes in patients with eating disorders before and during the coronavirus (COVID-19) pandemic have yielded conflicting results. Furthermore, no study has yet evaluated treatment outcomes in adolescent patients with anorexia nervosa before, during and after the crisis. Hence, this study investigated the outcomes of an intensive Cognitive Behavioral Therapy-Enhanced (CBT-E) program on adolescents with anorexia nervosa consecutively treated before (n = 64), during (n = 37) and after (n = 31) the period of emergency spanning 8 March 2020 to 31 March 2022. Results show consistent and similar improvements in eating disorder psychopathology, general psychopathology and body mass index-for-age percentiles across all three periods, with approximately 60% of patients maintaining a full response at the 20-week follow-up, suggesting that treatment efficacy remained robust. Overall, the study underscores the effectiveness of intensive CBT-E as a viable treatment option for adolescents with anorexia nervosa, even during and after unprecedented challenges such as those posed by the COVID-19 pandemic.

Disordered Eating in Young Women with Polycystic Ovary Syndrome

Polycystic ovary syndrome (PCOS) was the most prevalent endocrine disorder among women. Weight issues were commonly observed and found to be associated with comorbidities. This study aimed to compare Eating Disorder Examination Questionnaire (EDE-Q) scores and Night Eating Questionnaire (NEQ) scores in patients with and without PCOS and analyze the factors associated with disordered eating. Women aged 18-25 years with and without PCOS (n = 110 for each group) were included in the study. All patients completed the EDE-Q, NEQ, Beck Anxiety, and Beck Depression inventories. Disordered eating was found more frequently in women with PCOS than in controls (25.5% vs. 2.7%, p < 0.001). There were no significant differences in NEQ scores between the two groups. Anxiety and depression scores were higher in patients with PCOS than in controls (p = 0.002 and p = 0.001, respectively). PCOS diagnosis (OR: 7.4, CI: [1.63-33.7]; p = 0.010) and high BMI (OR: 1.24, CI: [1.10-1.39]; p < 0.001) were found to be independent factors for disordered eating (EDE-Q global score ≥ 4). Disordered eating was more common in young women with PCOS compared to the control group. PCOS diagnosis and having a high BMI (> 25) were found to be independent factors related to disordered eating in young women with PCOS. Young women with a high BMI or PCOS appear to be at a higher risk of disordered eating than women of the same age. Scanning this group may help clinicians in identifying women at high risk for eating disorders and preventing comorbidities associated with them.

A pilot feasibility and acceptability trial of an internet indicated prevention program for perfectionism to reduce eating disorder symptoms in adolescents

PURPOSE

Perfectionism is a transdiagnostic risk factor for eating disorders. Treating perfectionism can reduce symptoms of eating disorders. No research has examined an indicated prevention trial using internet-based Cognitive-Behavioural Therapy for Perfectionism (ICBT-P) in adolescent girls at elevated risk for eating disorders. Our aim was to conduct a preliminary feasibility trial using a co-designed ICBT-P intervention. It was hypothesised that a higher proportion of participants in the ICBT-P condition would achieve reliable and clinically significant change on perfectionism, eating disorders, anxiety and depression, compared to waitlist control.

METHODS

Twenty-one adolescent girls with elevated symptoms of eating disorders (M age = 16.14 years) were randomised to a 4-week online feasibility trial of a co-designed ICBT-P prevention program or waitlist control. Qualitative surveys were used to gain participant perspectives.

RESULTS

The ICBT-P condition had a higher proportion of participants achieve reliable change and classified as recovered on perfectionism and symptoms of eating disorders and anxiety, compared to waitlist control. Qualitative findings indicated that 100% of participants found the program helpful.

CONCLUSION

The results indicate ICBT-P is a feasible and acceptable program for adolescent girls with elevated eating disorder symptoms. Future research is required to examine outcomes in a randomised controlled trial.

LEVEL OF EVIDENCE

Level III: Evidence obtained from well-designed cohort or case-control analytic studies.

TRIAL REGISTRATION NUMBER

This trial was prospectively registered with Australian and New Zealand Clinical Trials Registry (ACTRN12620000951954P) on 23/09/2020.

Dissemination of a dissonance-based body image promotion program for mothers and daughters in church settings: A controlled pilot study of Reclaiming Beauty

This proof of concept, controlled pilot study expands on existing dissonance-based body image promotion programs by testing a modified version of the Body Project for 136 mothers and daughters aged 11-18 years old in church settings called Reclaiming Beauty. Mothers (n = 30) and their daughters (n = 35) who participated in Reclaiming Beauty were compared to mothers (n = 32) and daughters (n = 39) in a waitlist, assessment-only, control group on body image, eating psychopathology, and risk factor measures (thin-ideal internalization, physical appearance comparison) at pre-, post-, and 6-month-follow-up assessments. Intent-to-treat, multilevel modeling indicated that mothers and daughters in the Reclaiming Beauty group experienced significant improvement in body appreciation, body shape concerns, eating psychopathology, thin-ideal internalization, and physical appearance comparison over a six-month period compared to control participants. Changes in thin-ideal internalization and appearance comparison did not predict body image and eating psychopathology at follow-up. Baseline levels of body satisfaction did not moderate the effect of the program, except for its effect on body shape concerns. Findings provide preliminary support for delivering a dissonance-based body image promotion intervention to mothers and their daughters and the feasibility of leveraging the mother-daughter relationship as well as delivering interventions in church settings.

Cutoff scores of the Eating Disorder Examination-Questionnaire for the German population

OBJECTIVE

The Eating Disorder Examination-Questionnaire (EDE-Q) is one of the most widely used self-report measures for the assessment of eating disorder (ED) symptomatology. However, proposed cutoff scores that may indicate the presence of an ED have been heterogeneous. Therefore, the current study derived cutoff scores from two large samples: one representative for the German population and one composed of persons with EDs at admission to inpatient treatment.

METHOD

Receiver operating characteristic analysis was used with the EDE-Q global score as independent variable and group (controls: n = 2519, patients: n = 2038) as dependent variable. These analyses were also conducted separately with the patient group divided into persons with anorexia nervosa (AN; n = 1456), bulimia nervosa (BN; n = 370), and other EDs (n = 212) and after matching groups for age and sex distribution.

RESULTS

The EDE-Q global score discriminated well between controls and patients (AUC >91%, sensitivity >.84, specificity >.79). A score of 1.6 discriminated best between controls and patients in general and persons with AN in particular. Optimal thresholds for discriminating between controls and persons with BN and other EDs ranged between scores of 1.8 and 2.4.

DISCUSSION

In the German population, cutoff scores between 1.6 and 2.4 may be used to screen for the presence or absence of an ED or evaluate treatment outcome, with slightly higher cutoff scores for persons with BN and other EDs than for persons with AN.

PUBLIC SIGNIFICANCE

Questionnaire scores have little value when it is unclear which scores indicate the likely presence of an ED, as such scores can be used to estimate the prevalence of or screen for EDs in the general population and evaluate outcome at the end of ED treatment. The current study indicates a score around 2 on the EDE-Q as an optimal threshold for this.

Specialist psychotherapy with emotion for anorexia in Kent and Sussex: An intervention development and non-randomised single arm feasibility trial

OBJECTIVE

Anorexia nervosa (AN) is a serious eating disorder treated using psychological interventions, yet outcomes remain limited. Emotional difficulties are recognised as a treatment target. This research programme developed and evaluated feasibility of an emotion-focused therapy for adults with AN.

METHODS

Phase One intervention development utilised 'intervention mapping'. Qualitative research drew on lived experience highlighting objectives for change. Empirical evidence was synthesised into hypotheses of core emotional difficulties and an associated model of change. Relevant psychotherapeutic theory-based change methods were integrated to form the Specialist Psychotherapy with Emotion for Anorexia in Kent and Sussex (SPEAKS) intervention, guidebook and clinician training package. Phase Two tested SPEAKS in a single-arm, multisite feasibility trial across two specialist services, utilising prespecified progression criteria, and embedded process evaluation.

RESULTS

SPEAKS was 9-12 months (40 sessions) of weekly individual psychotherapy, drawing on a range of psychotherapeutic modalities, predominantly Emotion Focused Therapy and Schema Therapy. Forty-six participants consented to feasibility trial participation; 42 entered the trial and 34 completed. Thirteen of 16 feasibility criteria were met at green level and three at amber, highlighting areas for improving model adherence.

CONCLUSIONS

A randomised controlled trial is indicated. Therapist training and guidebook adjustments to improve model adherence are suggested.

The relationship between non-purging compensatory behaviors, clinical severity, and treatment outcomes in adults with binge-spectrum eating disorders

Non-purging compensatory behaviors (NPCB; e.g. driven exercise, fasting, other extreme behaviors) are a subcategory of compensatory behaviors typically characterized as infrequent and less severe. Limited prior research has studied NPCB despite their increasing prevalence among adults with binge-spectrum eating disorders (B-ED). More research is needed to understand the types of NPCB present among B-ED and the association between NPCB, clinical severity, and treatment outcomes. Secondary analyses were conducted among 155 adults with B-ED in cognitive-behavioral (CBT)-based clinical trials. At baseline and post-treatment, clinical interviews of eating pathology assessed binge eating frequency, purging compensatory behavior frequency, and global eating pathology. The following NPCB were also assessed: driven exercise, 24-h fasting, 8+ waking hours of compensatory fasting, chewing and spitting, and other extreme weight control behaviors. Participants engaging in NPCB reported higher global eating pathology than those not engaging in NPCB. Frequency of chewing and spitting and 24-h fasting significantly decreased over treatment. Engagement in NPCB at baseline did not predict CBT outcomes. The current study highlights the prevalence and clinical severity of NPCB in B-ED but offers promising results regarding the potential for CBT to improve these behaviors. More research is needed on other extreme weight control behaviors reported qualitatively in our sample and on the maintenance of improvements in non-purging behaviors after CBT.

Recognition of others' interoceptive states in those with and without eating disorders

BACKGROUND

The ability to recognize one's own emotions is associated with one's ability to recognize others' emotions. Beyond the domain of emotion, however, the relationship between recognition of one's own internal states (interoception) and others' interoceptive states has not been investigated, either in the typical population or clinical groups with interoceptive difficulties (e.g. eating disorders; EDs).

METHOD

This study investigated recognition of one's own and others' internal states in adults with and without eating disorders, using a high frequency visual noise paradigm. Participants completed self-report measures of interoception, alexithymia (difficulties recognising one's own emotional internal states) and ED symptomatology, and the Heartbeat Counting Task measure of cardiac interoceptive accuracy.

RESULTS

Alexithymia was significantly negatively correlated with recognition of others' interoceptive states. EDs were not associated with difficulties recognising others' interoceptive states.

CONCLUSIONS

The ability to recognise one's own emotional internal states is associated with the recognition of others' interoceptive states, which may contribute to social skills and the ability to care for others.

Task shifting eating disorders prevention: A pilot study of selective interventions adapted for teacher-led universal delivery in secondary schools

OBJECTIVE

Increasing effectiveness and sustainability of universal school-based eating disorder prevention is needed. This study adapted two existing selective prevention programmes for universal delivery, investigating feasibility, acceptability, and preliminary effects when delivered by trained teachers to classes of mixed-gender adolescents.

METHOD

A three-arm controlled pilot study with Year 9 students (N = 288; Mage  = 13.61 SDage  = .50). Three schools in south Wales and south-west England were allocated to mindfulness-based intervention (MBI), dissonance-based intervention (DBI), or classes-as-usual (CAU) control. Self-reported eating disorder risk factors were collected at baseline, 6-week post-intervention, and 2-month follow-up. Focus groups were conducted post-intervention.

RESULTS

Delivery and evaluation were feasible, allowing for flexibility in scheduling, with good retention. Student and teacher ratings indicated moderate acceptability of both interventions, with recommendations for refinement. Mixed model analyses, controlling for baseline, showed significant effects of condition across post-intervention and follow-up for body esteem (DBI > CAU; Cohen's d = .34) and positive affect (MBI > CAU, d = .58). For girls only, both MBI and DBI improved body satisfaction and internalization, and the MBI additionally resulted in improved weight and shape concerns, negative affect, and life disengagement (d's = .39-1.12), across post-intervention and follow-up.

DISCUSSION

Selective eating disorder prevention programmes based on cognitive dissonance and mindfulness can be delivered universally in schools, by teachers, allowing for appropriate flexibility necessary for real world implementation. Moderate acceptability indicates areas for improving content and delivery; positive effects on key outcomes are encouraging. These findings provide support for further robust evaluation.

PUBLIC SIGNIFICANCE

Existing universal eating disorder prevention is limited by small effects and reliance on highly trained facilitators. This study is the first to adapt mindfulness- and dissonance-based interventions for delivery by teachers, to adolescents of all genders in a classroom setting. Delivery was largely feasible and acceptable, and both interventions showed significant effects across key risk factors for eating disorders, with larger effect sizes than found previously. This underpins further robust evaluation.

Motivational processes contributing to disturbances in women's body image and eating

Reinforcement Sensitivity Theory (RST) provides a neurobiological personality framework for understanding approach and avoidance behavioural patterns. Recent research suggests an association between RST personality traits (reward interest and behavioural inhibition system [BIS]) and women's body image and eating behaviours. The current study aimed to extend this research by testing for indirect relationships between reward interest and BIS and eating disorder symptoms, as mediated through thin ideal internalisation. Adult female participants (N = 354, M = 22.06 years of age, SD = 6.78) completed self-report measures of reward interest, BIS, thin ideal internalisation, and eating disorder symptoms (i.e., restraint, eating concerns, weight and shape concerns). Indirect relationships were tested using bootstrapped mediation analyses. Results showed thin ideal internalisation mediated the pathways between the BIS and restraint, eating concern, and weight and shape concerns. Reward interest was not associated with thin ideal internalisation, or with eating disorder symptoms. Although the application of RST to women's body image is an emerging research area, these novel findings suggest BIS trait sensitivity may increase women's risk of body image concerns and restricted eating, via increased levels of thin ideal internalisation. Overall, these findings provide preliminary support for inclusion of individual differences in BIS sensitivity in risk factor models of body image and eating disturbances. Future research should aim to replicate these findings in more diverse samples, using longitudinal designs.

Eating disorder symptoms among transgender and gender diverse youth

Compared to cisgender peers, transgender and gender diverse (TGD) youth and adults report elevated eating disorder (ED) symptoms likely related to gender dysphoria and attempts to modify their bodies accordingly. Less is known about the impact on gender-affirming care and ED symptoms. This study aimed to expand on extant research and describe ED symptoms in TGD youth seeking gender-affirming care while exploring potential associations between gender-affirming hormone use and ED symptoms. A total of 251 TGD youth completed the Eating Disorders Examination-Questionnaire (EDE-Q) as part of routine clinical care. ANCOVAs and negative binomial regressions examined differences in ED symptoms among transgender females (identifying as female but assigned male at birth) and transgender males (identifying as male but assigned female at birth). ED severity was not significantly different among transgender females versus transgender males, (p = .09), or associated with gender-affirming hormone use (p = .07). Transgender females receiving gender-affirming hormones reported a greater proportion of objective binge eating episodes compared to those who were not (p = .03). Over a quarter of TGD youth reported engagement in ED behaviors suggesting assessment and intervention related to ED behaviors among TGD youth is imperative since adolescence is a particularly vulnerable period for adolescents and engagement in ED behaviors could lead to full ED development and medical risk.

Evidence-Based Assessments for Transdiagnostic Eating Disorder Symptoms: Guidelines for Current Use and Future Directions

Eating disorders are severe and often chronic mental illnesses that are associated with high impairment and mortality rates. Recent estimates suggest that eating disorder prevalence rates are on the rise, indicating an increased need for accurate assessment and detection. The current review provides an overview of transdiagnostic eating disorder assessments, including interview, self-report, health and primary care screeners, and technology-based and objective assessments. We focused on assessments that are transdiagnostic in nature and exhibit high impact in the field. We provide recommendations for how these assessments should be used in research and clinical settings. We also discuss considerations that are crucial for assessment, including the use of a categorical versus dimensional diagnostic framework, assessment of eating disorders in related fields (i.e., anxiety and depression), and measurement-based care for eating disorders. Finally, we provide suggestions for future research, including the need for more research on short transdiagnostic screeners for use in health care settings, standardized assessments for ecological momentary assessment, development of state-based assessment of eating disorder symptoms, and consideration of assessment across multiple timescales.

Reduction in eating disorder symptoms among adults in different weight loss interventions

Restriction of food intake and counting calories as part of weight loss programs are thought to trigger eating behaviors and attitudes which can lead to eating disorders. We have developed a treatment model, Regulation of Cues (ROC), that targets appetitive traits, including food responsiveness and satiety responsiveness, which could address overeating at an implicit level and reduce risk of detrimental behaviors and attitudes. This manuscript evaluates eating disorder symptoms, attitudes, and behaviors among adults with overweight or obesity randomized to ROC, behavioral weight loss (BWL), a combination of ROC + BWL (ROC+) and an active comparator (AC). Participants included 271 adults with a body mass index of 25 to 45, age 18 to 65 years, and a lack of comorbidities that could interfere with participation. Assessments occurred at baseline, mid-treatment (6 months), post-treatment (12-months) and 6- and 12-month follow-up. During treatment, participants in all four arms showed decreases in Eating, Weight, and Shape concerns on the Eating Disorder Examination-Questionnaire and binge eating symptoms on the Binge Eating Scale which were maintained at 6-month follow-up but increased at the 12-month follow-up. Both the ROC+ and BWL arms showed increases in Restraint during treatment which dissipated after treatment ended. This study contributes to a growing body of literature demonstrating that weight loss programs are not associated with increases in eating disorder symptoms. Future studies should evaluate interventions to maintain improvements in eating disorder symptoms following weight loss programs.

Skepticism of and critical thinking about media messages: Conflicting relationships with body dissatisfaction

Despite the theoretical connection between media literacy and body dissatisfaction, empirical findings about their relationship are decidedly mixed. There is not a clear explanation for these discrepancies. The present study aimed to 1) compare the attitudes young adult women with those of a reference group of adolescents to examine whether similar values were observed despite differences in age group and racial/ethnic identity, 2) to examine the relationships between media literacy and body dissatisfaction using recommended measures of media literacy. Racially diverse female undergraduate students (N = 152, Mage = 21.62) completed the Media Attitudes Questionnaire, the Critical Thinking about Media Measure, and the Body Shape Questionnaire online. Young adult women endorsed greater critical thinking about media messages and greater skepticism towards the similarity of media messages than adolescents. Additionally, greater skepticism towards the desirability and realism of media messages was associated with lower body dissatisfaction while greater critical thinking about media messages was found to be positively related to greater body dissatisfaction. It is possible that greater critical thinking within the context of media literacy cannot occur without increased attention towards or time spent thinking about media messages. Findings suggest that enhancing critical thinking about the media may not be the main mechanism of change for effective media literacy interventions. These findings underscore the complexities that exist within the relationships between media literacy and body dissatisfaction and highlight the continued need for research in this area.

Family-based treatment takes longer for adolescents with mental health comorbidities: findings from a community mental health service

Children and adolescents diagnosed with an eating disorder often meet the diagnosis of another mental health disorder. In addition to eating disorders, individuals with comorbid disorders have higher suicide rates and more severe and chronic eating disorder symptoms. The present research aimed to investigate the influence of comorbid conditions on the treatment outcomes of children and adolescents that attended a public community mental health service. It was hypothesised that the patients with comorbidities would have a more extended treatment duration, slower rates of weight restoration, more hospital admissions for medical compromise, and poorer functioning than those without comorbidities. Data from 78 past patients at the Eating Disorder Program in Queensland, Australia, were analysed. Patients with comorbidities demonstrated similar recovery rates to those without comorbidities. However, those with comorbid conditions had longer episodes of treatment. The study's results support using Family Based Treatment for patients with and without comorbidities. The implications of the findings for public mental health services and directions for future research are discussed.

Higher Triad Risk Scores Are Associated With Increased Risk for Trabecular-Rich Bone Stress Injuries in Female Runners

OBJECTIVE

Bone stress injuries (BSIs) in trabecular-rich bone are associated with greater biological risk factors compared with cortical-rich bone. We hypothesized that female runners with high Female Athlete Triad (Triad)-related risk would be at greater risk for trabecular-rich BSIs than runners with low Triad-related risk.

DESIGN

Prospective cohort study.

SETTING

Two NCAA institutions.

PARTICIPANTS

Female runners were followed prospectively for up to 5 years.

INTERVENTION

The intervention consisted of team nutrition presentations focused on optimizing energy availability plus individualized nutrition sessions. Triad Cumulative Risk Assessment (CRA) categories were assigned yearly based on low-energy availability, menstrual status, age of menarche, low body mass index, low bone mineral density, and prior BSI.

MAIN OUTCOME MEASURES

The outcome was the annual incidence of trabecular- and cortical-rich BSI. Generalized Estimating Equations (GEE, to account for the correlated nature of the observations) with a Poisson distribution and log link were used for statistical modeling.

RESULTS

Cortical-rich BSI rates were higher than trabecular-rich BSI rates (0.32 vs 0.13 events per person-year). Female runners with high Triad-related risk had a significantly higher incidence rate ratio of trabecular-rich BSI (RR: 4.40, P = 0.025) and cortical-rich BSI (RR: 2.87, P = 0.025) than women with low Triad-related risk. Each 1-point increase in Triad CRA score was associated with a significant 26% increased risk of trabecular-rich BSI ( P = 0.0007) and a nonsignificant 14% increased risk of cortical-rich BSI ( P = 0.054).

CONCLUSIONS

Increased Triad CRA scores were strongly associated with increased risk for trabecular-rich BSI. Incorporating Triad CRA scores in clinical care could guide BSI prevention.

The acceptability, feasibility, and preliminary efficacy of a supported online self-help treatment program for binge-eating disorder

Introduction

Studies in transdiagnostic eating disorder (ED) samples suggest supported online self-help programs (eTherapies) are effective and may improve access to treatment; however, their evaluation in those with binge-eating disorder (BED) is limited. Given BED's high prevalence and low levels of treatment uptake, further eTherapy evaluation is needed to broaden access to effective, evidence-based treatment options. The aim of this study was to investigate the acceptability, feasibility, and preliminary efficacy of a supported eTherapy for those with BED or subthreshold BED, and to examine symptom change across the duration of therapy.

Method

Nineteen women with BED completed a supported, 10-session Cognitive Behavioural Therapy-based eTherapy in an uncontrolled, pre-post, and 3 months follow up intervention study. Key outcomes were assessed by the Eating Disorder Examination Questionnaire (EDE-Q): objective binge episode (OBE) frequency and ED psychopathology. Feasibility was evaluated via program adherence and dropout, whilst acceptability was assessed through participant feedback post-treatment. Weekly symptom change (ED psychopathology) during treatment was assessed by the Eating Disorder Examination - Questionnaire Short (EDE-QS).

Results

Generalised estimating equations showed statistically and clinically significant reductions in OBEs and ED psychopathology (large effects) post-treatment, with these decreases maintained at follow up. Across weekly assessment, a marked slowing in the rate of change in ED psychopathology was observed after four sessions of the program. Program feasibility was high (i.e., 84% of content completed), as was program acceptability (i.e., 93% of participants expressed high levels of satisfaction).

Discussion

These results support the acceptability, feasibility, and preliminary efficacy of a supported eTherapy program for those with BED and suggest the variability of symptom change across the duration of therapy. Future research should further investigate findings in an adequately powered randomised controlled trial.

Towards an understanding of help-seeking behaviour for disordered eating: Refinement of a barriers to help-seeking measure

AIM

Early intervention in eating disorders (EDs) is hampered by a lack of validated measures of barriers to treatment seeking. The present study examined the factor structure of the Perceived Barriers to Psychological Treatment scale (PBPT) and a combination of PBPT and Barriers to Seeking Help for ED items (BATSH-ED) with respect to treatment-seeking for an ED.

METHOD

Participants were 456 female university students aged 17-25 reporting a wide range of disordered eating severity. Confirmatory factor analyses were conducted with the whole sample followed by correlational and regression analyses with a high-risk sample to assess validity of the selected questionnaire items.

RESULTS

Four models were tested. First, we replicated the original PBPT 8-factor structure in our sample with comparable fit indices. Second, the addition of six ED items comprising a Denial and Ambivalence subscale improved model fit. Third and fourth, when only significant subscales predicting treatment seeking were retained, with removal of items with weak loadings, a 15-item six-factor solution provided a best fit. A range of psychosocial measures had relationships in the expected directions with the questionnaire subscales. In addition to disordered eating, the denial subscale was uniquely associated with treatment seeking.

CONCLUSIONS

While the present study contributes to refining the assessment of barriers to help-seeking, future studies should consider co-design with lived experience to further improve the model fit of the questionnaire and improve predictiveness of help-seeking.

Evidence of effectiveness of specialist supportive clinical management for anorexia nervosa in routine clinical practice: Outcomes from a clinical case series

OBJECTIVE

This study provides a preliminary report on the effectiveness of Specialist Supportive Clinical Management (SSCM) in a clinical case series of adults with anorexia nervosa, to supplement evidence of efficacy from controlled trials.

METHOD

Body mass index (BMI), eating disorder symptoms, mood and anxiety were measured at the start and end of treatment for 42 adults who received SSCM in a community eating disorders service.

RESULTS

Significant improvements were observed on all outcome measures, with larger effect sizes for symptom change than BMI. Recovery rates appear similar to those in clinical trials.

DISCUSSION

The study offers preliminary support for the effectiveness of SSCM in routine settings and identifies several areas for further research.

10‐session Cognitive Behavioural Therapy (CBT-T) for Eating Disorders: A Systematic Review and Narrative Synthesis

To review the literature examining the effectiveness and efficacy of a cognitive behavioural therapy (CBT) for eating disorders delivered in ten sessions for those who are not underweight (CBT-T). A systematic search of the literature (MEDLINE, EMBASE, PsycINFO, Scopus and ProQuest) was conducted to identify relevant publications to date at the time of March 2022 (re-run in May 2023). Intervention studies of any study design that investigated CBT-T offering outcome data at least pre- to post- intervention for eating disorder and related outcomes were included. Results were reported for treatment attrition, abstinence, remission, eating disorder psychopathology, disordered eating behaviours, psychosocial impairment, depression and anxiety and synthesised using a narrative synthesis framework. The Effective Public Health Practice Project (EPHPP) quality assessment tool (Thomas et al., 2004) was used to assess the quality of included studies. Outcomes for 555 people who received CBT-T across eight studies (one randomised control trial and seven non-randomised studies) were synthesised. Support was found for the effectiveness and efficacy of CBT-T for a range of non-underweight eating disorders, with respect to eating disorder psychopathology, disordered eating behaviours, psychosocial impairment, abstinence and remission. CBT-T also led to improvements for depression and anxiety symptoms. CBT-T appears to improve eating disorder and co-morbid outcomes for people with non-underweight eating disorders within ten sessions, with comparable results to standard-length CBT for eating disorders (CBT-ED). Although results for CBT-T are promising, there were concerns with the quality of the studies. Future research is required to strengthen the evidence base with larger, higher-quality studies which compare CBT-T directly with recommended psychological treatments, such as standard-length CBT-ED.

The development of co-designed parent-supported cognitive behaviour therapy for perfectionism in adolescents with eating disorders: initial feasibility and acceptability

BACKGROUND

Perfectionism is significantly associated with symptoms of eating disorders in adolescents. Studies to date have not examined parent-supported CBT for perfectionism in eating disorders (CBT-P-ED). We co-designed the treatment and conducted a feasibility trial.

METHODS

Eight parents of adolescents with eating disorders (M age = 48.75 years, 100% female) engaged in three co-design workshops to create a parent-supported CBT-P-ED self-help intervention. A further 10 parents (M age 41.8 years, 50% female) and their adolescent offspring (n = 10, M age 15.4 years, 60% female, 50% with self-reported diagnosis of anorexia nervosa) participated in a feasibility trial and provided feedback on the intervention.

RESULTS

The parents who engaged in the co-design workshops suggested several areas to optimise the perfectionism intervention, including using plain language, the impact of parental perfectionism, how to engage with their adolescent in treatment and the importance of increasing eating disorder specific material. Feedback from the feasibility trial suggested that the intervention was acceptable and feasible with 100% of parents and adolescents saying it was useful, and no attrition.

CONCLUSIONS

Parent-supported CBT-P-ED appears to be feasible. Future research is now required in a randomised controlled trial.