Epidemiology of eating disorders in Europe: prevalence, incidence, comorbidity, course, consequences, and risk factors

A Meaning-Centered Intervention for Undergraduate Women With High Weight and Shape Concerns-Replication of a Randomized Controlled Trial

OBJECTIVE

Recent studies underscore the relevance of life meaning to the maintenance of eating disorders. A previously conducted randomized controlled trial tested a meaning-centered intervention for female university students with high weight and shape concerns. After a 6-week online intervention led by a trainer, participants in the intervention condition scored higher on life meaning and lower on eating disorder symptoms and general distress compared to a waitlist group.

METHOD

Given that the original study took place during COVID-19, this study replicated the design to test the findings' robustness.

RESULTS

Compared to the waitlist condition (n = 68), participants in the intervention condition (n = 63) again scored higher on the presence of life meaning at post-assessment and follow-up. Participants in the intervention condition also showed moderately lower internalizing symptoms at both timepoints, whereas eating disorder symptoms were only reduced in those with relatively high baseline symptom severity.

CONCLUSIONS

Thus, also without social distancing measures, the intervention increased life meaning and reduced eating disorder symptoms and comorbid internalizing symptoms in women with weight and shape concerns.

Changes in Circadian Rhythm in Chronically-Starved Mice Are Associated With Glial Cell Density Reduction in the Suprachiasmatic Nucleus

OBJECTIVE

Anorexia nervosa (AN) is an eating disorder characterized by severe weight loss and associated with hyperactivity and circadian rhythm disruption. However, the cellular basis of circadian rhythm disruption is poorly understood. Glial cells in the suprachiasmatic nucleus (SCN), the principal circadian pacemaker, are involved in regulating circadian rhythms. We hypothesize that the circadian rhythm disruption in AN patients is associated with glial cell changes in the SCN.

METHOD

In the starvation-induced hyperactivity mouse model, mice had free access to a running wheel and received a restricted amount of food once a day, until a 25% body weight loss was reached and maintained their weight loss for two weeks. This was followed by a refeeding phase. Different daily periods of running wheel activity were defined, such as food anticipatory activity up to 4 h before feeding. Circadian rhythmicity was analyzed using the cosinor method. Gene expression was evaluated using real-time polymerase chain reaction. Immunohistochemistry was used to quantify astrocytes, microglia, and oligodendrocytes.

RESULTS

Starvation induced changes in circadian rhythm, as indicated by changes in cosinor-based characteristics. Refeeding reversed these effects. Additionally, there was an increase in cryptochrome circadian regulator 1 expression and a decrease in the density of astrocytes and oligodendrocytes in the SCN after chronic starvation.

DISCUSSION

Starvation-induced alterations in circadian rhythms are associated with molecular, and cellular changes in the hypothalamus. Reduced astrocytes and oligodendrocytes in the SCN in a mouse model of AN suggest that glial pathophysiology may play a role in circadian rhythm disruption.

The predictive value of emotion regulation difficulties and negative mood on short and long-term treatment outcomes in an online guided self-help programme for adults with binge-eating disorder

OBJECTIVE

Cognitive behaviour therapy (CBT) online guided self-help programs represent efficacious and accessible treatment options for adults with binge-eating disorder (BED), but research on predictors of treatment outcome is scarce. This study aimed to investigate the predictive value of emotion regulation difficulties relative to that of negative mood on short- and longer-term treatment outcomes in an online guided self-help programme for BED above and beyond other predictors (age, sex, baseline BED severity).

METHODS

Participants were 63 adults (87% female, mean age 37.2 years) with BED. Data was analysed using a hierarchical model approach.

RESULTS

Emotion regulation difficulties better predicted both weekly binge-eating frequency and eating disorder (ED) pathology at posttreatment than negative mood, after controlling for the effect of age, sex and baseline BED severity. At 6-month follow-up, neither emotion regulation difficulties nor negative mood further added to the prediction of weekly binge-eating frequency, whereas negative mood, but not emotion regulation difficulties, did so for ED pathology.

CONCLUSION

These findings indicate that emotion regulation difficulties at treatment begin might be a relevant predictor of immediate treatment outcome in online guided self-help for adults with BED but might have lower impact on longer-term treatment outcome than negative mood.

CLINICAL TRIAL REGISTER NUMBER

The clinical trial register number is not given in this version of the manuscript due to anonymisation.

Exploring the neurobiological correlates of psilocybin-assisted psychotherapy in eating disorders: a review of potential methodologies and implications for the psychedelic study design

Eating disorders (EDs) are a group of debilitating mental illnesses characterized by maladaptive eating behaviors and severe cognitive-emotional dysfunction, directly affecting 1-3% of the population. Standard treatments are not effective in approximately one third of ED cases, representing the need for scientific advancement. There is emerging evidence for the safety and efficacy of psilocybin-assisted psychotherapy (PAP) to improve treatment outcomes in individuals with EDs. However, the limited knowledge of the neurobiological mechanisms underlying the therapeutic effects of PAP restricts the ability to confirm its clinical utility. This narrative review presents an overview of methodologies used to elucidate the pathophysiological mechanisms of EDs or the effects of psilocybin that could be employed to probe the neurobiological correlates of PAP in EDs, including magnetic resonance imaging and molecular neuroimaging techniques, electrophysiological approaches, and neuroplasticity markers. Finally, the implications of these methodologies are described in relation to the unique features of the psychedelic study design, challenges, limitations, and future directions to advance the field. This paper represents a valuable resource for scientists during study conceptualization and design phases and stimulates advancement in the identification of effective therapeutic interventions for EDs.

Global screening of health behaviors: Introducing Lev-screening (Lev-s)-development and psychometric evaluation

Poor health behaviors have been identified as a critical factor for the burden on healthcare systems and individual suffering. However, comprehensive assessment of health behaviors is time-consuming and often neglected. To address this, we introduce the Lev-screening (Lev-s), a new, brief tool that covers multiple health behaviors. The Lev-s assesses ten health behaviors-physical activity, diet, alcohol use, tobacco use, illegal drug use, sleep, social relations, meaningful activities, sexual health, and screen health-using 33 items. This article details the development and psychometric evaluation of Lev-s with a sample of 2,279 participants aged 18-87. Test-retest reliability estimated as intra-class correlation coefficients for the different health behaviors ranged from .71 to .98 (n = 157), indicating moderate to excellent reliability. Lev-s showed associations with quality of life, demonstrated inter-correlations among included health behaviors, and detected group differences between individuals with and without neurodevelopmental conditions. The Lev-s exhibits satisfactory psychometric properties and holds promise as an efficient tool for screening of health behaviors.

A Narrative Review on the Neurocognitive Profiles in Eating Disorders and Higher Weight Individuals: Insights for Targeted Interventions

Background/Objectives: Recent research has increasingly explored the cognitive processes underlying eating disorders (EDs), including anorexia nervosa (AN), bulimia nervosa (BN), binge eating disorder (BED), other specified feeding or eating disorders (OSFEDs), and individuals with higher weight (HW). This critical narrative review focuses on neurocognitive findings derived from mainly experimental tasks to provide a detailed understanding of cognitive functioning across these groups. Where experimental data are lacking, we draw on self-report measures and neuroimaging findings to offer supplementary insights. Method: A search of major databases that prioritized meta-analyses and recent publications (last 10 years) was conducted. Using comprehensive search terms related to EDs, HW, and neurocognition, eligible studies focused on human neurocognitive outcomes (e.g., cognitive flexibility, attentional bias, etc.) published in English were selected. Results: We found that some neurocognitive characteristics, such as cognitive rigidity, impulsivity, emotion processing difficulties, and dysregulated reward processing, appear transdiagnostic, spanning multiple ED subtypes and HW populations. We also revealed neurocognitive features specific to ED subtypes and HW. For instance, individuals with AN demonstrate an enhanced focus on detail, and BN and BED are characterized by a pronounced attentional bias toward food-related stimuli. In individuals with HW, cognitive processes underpin behaviours associated with overeating and weight gain. Conclusions: These findings highlight the critical importance of understanding both the unique and shared neurocognitive patterns across ED subtypes and HW populations. By identifying transdiagnostic factors, such as cognitive rigidity and reward processing, alongside ED subtype/HW-specific vulnerabilities, researchers and clinicians can develop more nuanced, evidence-based interventions that address the core mechanisms driving disordered eating behaviours.

Determinants of binge eating and its impact on indicators of obesity among Finnish adolescents - a cohort study

BACKGROUND

Binge eating, a type of disordered eating, is relatively common among youth and predisposes them to many adverse health outcomes. Diverse psychological and social factors may be associated with binge eating. The aim of this study was to examine child and parental psychosocial determinants of binge eating and its impact on indicators of obesity.

METHODS

The sample consisted of 10 679 Finnish adolescents who participated in the Fin-HIT cohort study. The participants were 9-12 years at baseline, and they were followed-up for 2.6 years on average. At baseline, children's anthropometry was measured, and they reported binge eating, disordered eating attitudes and behaviors, self-esteem, and body shape satisfaction with validated questionnaires. Parents reported their own weight satisfaction, dieting, and depressive symptoms at baseline. Adjusted logistic and linear regressions were used in the analyses.

RESULTS

Self-esteem was associated with lower odds (OR 0.88, 95% CI 0.85-0.91), and overall disordered eating attitudes and behaviors were associated with higher odds (OR 1.08, 95% CI 1.06-1.10) of binge eating. Additionally, child and parent body dissatisfaction were associated with binge eating but not in the fully adjusted model where the child's BMI was additionally considered. None of the parental factors were associated with binge eating in the fully adjusted model. Binge eating was associated with higher BMI z-scores and waist circumferences both cross-sectionally and longitudinally.

CONCLUSIONS

In support of previous findings, we found that low self-esteem, body dissatisfaction and other disordered eating attitudes and behaviors are associated with binge eating, but our results also highlight the impact of weight status as a potential moderator when the determinants of binge eating are examined. More studies on the role of parental factors in adolescent binge eating are needed.

Understanding Early Treatment Response in Brief CBT for Nonunderweight Eating Disorders: A Mixed Methods Study

OBJECTIVE

Early change in eating disorder psychopathology is the most robust predictor of treatment outcomes in eating disorders. However, little is known about what predicts early change. Using mixed-methodology, this study explored predictors of early change in the first four sessions of 10-session cognitive behavioral therapy (CBT-T) for nonunderweight eating disorders.

METHOD

Phase 1: interviews were conducted to explore CBT-T clinicians' perspectives on predictors of early change. Phase 2: robust multiple regressions were undertaken to examine whether any of five variables identified during interviews-diagnosis, wait time, therapeutic alliance, depression, and anxiety-were associated with early change in eating disorder psychopathology. Data were derived from outcome measures for service users (n = 107) receiving CBT-T in a community eating disorder service.

RESULTS

Phase 1: eight themes were identified: attitudes to making change, diagnosis, external mitigating circumstances, therapeutic alliance, therapist confidence, pretreatment variables, CBT-T format, and therapeutic suitability. Phase 2: no significant associations were found between the five predictor variables (diagnosis type, wait time, baseline depression, baseline anxiety, and therapeutic alliance) and early change in EDE-Q scores. These results have been certified as computationally reproducible by an independent statistician.

DISCUSSION

Qualitative findings identified several potential predictors of early change in eating disorder psychopathology in CBT-T, however, quantitative data contradicted qualitative findings, finding no significant association for any of the tested variables. Further research is required to clarify theses conflicting findings and to quantitatively explore the additional predictors highlighted during qualitative analysis.

Eating- and Weight-Related Disorders in the Armed Forces

BACKGROUND/OBJECTIVES

Like in the general population, the prevalences of eating- and weight-related health issues in the armed forces are increasing. Relevant medical conditions include the eating disorders (EDs) anorexia nervosa, bulimia nervosa, binge eating disorder, and avoidant restrictive food intake disorder (ARFID), as well as body dysmorphic disorder, muscle dysmorphia, and the relative energy deficiency in sport (RED-S) syndrome.

METHODS

We performed a narrative literature review on eating- and weight-related disorders in the armed forces.

RESULTS

Entry standards might exclude people with obesity, with EDs, or at high risk for EDs from entering the armed forces for military reasons and to protect the individual's health. Relevant potential risk factors of eating- and weight-related disorders in the military are the emphasis on appearance and fitness in the military, high levels of stress, military sexual trauma, post-traumatic stress disorder, deployment, relocation, long commutes, consumption of ultra-processed foods and beverages, limitations on food selection and physical exercise, and intensive combat training and field exercises. Eating- and weight-related disorders negatively impact professional military appearance and lead to problems with cardiorespiratory and neuromuscular fitness; daytime sleepiness; and a higher risk of musculoskeletal injuries, and other physical and mental health problems. Current and potential future therapeutic options include occupational health measures, psychosocial therapies, neuromodulation, and drug treatments.

CONCLUSIONS

Even though randomized controlled trials (RCTs) have been performed to test treatments for obesity in the armed forces, RCTs for the treatment of EDs, body dysmorphic disorder, muscle dysmorphia, and RED-S syndrome are lacking in the military context.

Analysis of the effects of eating and emotions on reproductive axis function in patients with functional hypothalamic amenorrhea

Objective: To investigate the effects of eating and emotions on reproductive axis function in patients with functional hypothalamic amenorrhea (FHA).

Methods: A retrospective cohort study was conducted to summarize the clinical and endocrine characteristics of 58 patients with FHA at initial diagnosis and to follow up the recovery of ovulation and spontaneous menstruation in the patients to investigate these biochemical indicators and their effects on recovery outcomes.

Results: Among patients with FHA, 13.8% (8/58) and 15.5% (9/58) had above moderately severe depressive and severe anxiety symptoms respectively, and 25.9% (15/58) were at high risk for eating disorders. 34.5% (20/58) were included assessed as having recovered. The non-recovered group had higher scores on the Patient Health Questionnaire (PHQ-9) (p = .022) and higher scores on the Eating Attitude Test-26 (EAT-26) (p = .03) as well as bulimia and food preoccupation (p = .041). Follicle diameter >5 mm at initial diagnosis was an independent factor influencing recovery of reproductive axis function (odds ratio = 7.532; 95% confidence interval, 1.321-42.930; p = .023).

Conculsions: Mood disorders and a certain risk of eating disorders were present in FHA.These, together with weight loss, endocrine and follicle size, could influence the outcome.

Treatment Targets and Strategies for Eating Disorders Recovery: A Delphi Consensus With Lived Experience, Carers, Researchers, and Clinicians

OBJECTIVE

Long-term recovery rates following eating disorders (EDs) treatment remain low. This might be partly due to a lack of agreement between key stakeholder groups, including people with lived experience, carers, clinicians, and researchers, regarding optimal therapeutic targets and strategies. We aimed to reach a consensus across these diverse groups on the most valued treatment targets and strategies for fostering ED recovery.

METHOD

We used the Delphi method with two phases: (i) Survey development and (ii) Expert rating. The survey development phase included the design of an initial set of items through scoping review and feedback from a committee of 14 experts. During the survey rating, we engaged a larger panel of 185 experts who comprised the stakeholder groups: Individuals with lived ED experience (n = 49), carers (n = 44), researchers (n = 46), and clinicians (n = 46).

RESULTS

Thirty-one targets and 29 strategies reached consensus (> 70% agreement over three rounds). Psychological-emotional-social targets including quality of life, sense of purpose, and emotion regulation, along with ED behaviors, reached the highest agreement (> 90%). Strategies reflecting an individualized approach to treatment (i.e., considering diversity, assessing comorbidities, and enhancing rapport) achieved the highest agreement (> 90%). Responses across groups were similar, except researchers leaning more towards consideration of weight- and eating-related targets.

DISCUSSION

Holistic targets and individualized therapeutic strategies have consistent support from the different stakeholder groups involved in ED treatment. The agreed set of targets/strategies may be used, in triangulation with other sources of evidence, to design and evaluate coproduced and personalized interventions.

Anorexia Nervosa in Polish Children and Adolescents in the Context of the COVID-19 Pandemic-An Observational Single Centre Study

INTRODUCTION

Anorexia nervosa (AN) is a psychiatric disorder with a high mortality rate and significant prevalence in the paediatric population. Preliminary reports during the COVID-19 pandemic suggested an increased incidence of AN among children and adolescents. The objective of this study was to analyse new cases of AN before, during, and after the pandemic, with a particular focus on the physical manifestations of the disease.

METHODS

This single-centre, retrospective study included new AN cases from the hospital database of a regional paediatric hospital (a reference centre for AN) between 2013 and 2023. Data analysed included the duration of the disease, body mass index (BMI), weight loss, length of hospitalisation, laboratory markers (leukopenia, anaemia, hypoproteinaemia, hyperferritinaemia, hypophosphataemia, dyslipidaemia, and hypothyroxinaemia) and clinical features of malnutrition (such as amenorrhea bradycardia, pericardial effusion, and cortical/subcortical atrophy).

RESULTS

This study was conducted in a Polish regional hospital. We analysed 228 hospitalized female patients aged 10 to 18 years diagnosed with AN, focusing on clinical characteristics, biochemical markers, and the impact of the COVID-19 pandemic. The COVID-19 pandemic was shown to have a significant impact, with longer hospitalisations observed during and after the pandemic and a lower BMI on admission post-pandemic compared to pre-pandemic. In addition, nutritional treatment became more prevalent over time while biochemical markers such as anaemia, hypothyroidism, hypophosphataemia, and dyslipidaemia were statistically more common post-pandemic.

CONCLUSIONS

This study demonstrates a significant impact of the COVID-19 pandemic on the clinical course and hospitalisation patterns of paediatric patients with AN. These findings suggest that the pandemic may have exacerbated disease severity and altered treatment approaches, emphasizing the need for enhanced clinical management and follow-up strategies for AN in the paediatric population during such health crises.

The Dutch Body Shape Questionnaire among patients with binge-eating disorder: psychometrics and norms of the full version (BSQ34) and the short version (BSQ8C)

PURPOSE

This study examined the psychometric properties and provided normative data of the Dutch Body Shape Questionnaire (BSQ34) and its shortened BSQ8C among patients with binge-eating disorder.

METHODS

The two versions of the BSQ were administered to patients with binge-eating disorder (N = 155) enrolled for treatment, and to a community sample (N = 333). The translation and back-translation of the BSQ were performed by translators with and without eating-disorder expertise. Internal consistency, concurrent validity, test-retest reliability, incremental validity, and sensitivity to change were determined. A receiver-operating-characteristic curve-analysis was used to establish criterion-related validity, for which the Eating Disorder Examination-Shape concern subscale, was used. Uni-dimensionality of the instrument was investigated with confirmatory factor analysis. Norms (population-based T-scores and clinical percentile-scores) were determined.

RESULTS

The psychometric properties of the BSQs were satisfactory. The BSQ34 discriminated well in body-shape dissatisfaction between patients with binge-eating disorder and the community sample (area-under-the-curve value = 0.91-0.98) and had a unidimensional factor structure. Comparing structural invariance between both samples revealed that scaler invariance was not supported, indicating that items may be interpreted differently by patients with binge-eating disorder and subjects from the community. Analyses were repeated for the BSQ8C, which yielded similar results.

CONCLUSION

The results indicated that both versions of the BSQ appeared suitable to screen for body-shape dissatisfaction among patients with binge-eating disorder. The BSQ34 supplies valuable information on the various types of concerns respondents have, which are critical to consider in clinical settings; the BSQ8C is recommended as a short screening tool.

LEVEL OF EVIDENCE

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

Why them? A systematic review on common factors among youth who receive compulsory treatment for anorexia nervosa

Background: Compulsory interventions, including compulsory nasogastric tube feeding, are sometimes necessary for youth with life-threatening anorexia nervosa. However, these interventions are also potentially traumatic for patients and clinicians alike.Objective: To improve early recognition and prevention of compulsory interventions, we evaluated common factors among youth with anorexia nervosa who receive compulsory treatment.Method: We conducted a systematic literature search of peer-reviewed studies in PubMed, Embase, Medline, PsycINFO, and WOS core collection. Two authors independently screened 7 447 articles and conducted a quality appraisal of the included studies. We thematically synthesised patient, contextual, and treatment factors of youth (≤ 24 years) who received compulsory treatment for anorexia nervosa.Results: We included 16 studies and five themes, with ten subthemes, emerged from the data, most with a medium strength of evidence. Patients exhibited common character traits, various comorbidities, and lives marked by instability or adversity. Furthermore, patients experienced complicated contextual factors, including family dysfunction and social isolation.Discussion: Prolonged and inconsistent treatment histories may increase social isolation and anorexia identification, which in turn may lead to increased treatment resistance and a higher likelihood of compulsory interventions.Conclusion: The diversity of presented factors in this systematic review emphasises the importance of personalised care. Early acknowledgement of factors associated with the illness is crucial for working towards recovery and preventing further deterioration. Furthermore, even when anorexia nervosa diverts all attention to dangerous levels of weight loss, attention to quality of life may help a patient find treatment motivation.

Self-Perceived Oral Health Related to Eating Disorders-A Cross-Sectional Questionnaire Study

OBJECTIVES

To investigate oral problems experienced by patients with eating disorder (ED).

METHODS

A cross-sectional study where ED patients (n = 48) at two Swedish specialised clinics filled out a questionnaire about perceived oral health problems and habits, and specific behaviours related to ED.

RESULTS

The majority exhibited poor eating and drinking habits, f.i. drinking light drinks (63%), and most of them were on medication (71%). The most common problems were hypersensitive teeth (three out of five) and perceived dryness of the mouth (almost four out of five). Likewise, pain in the teeth (38%) and the jaws (46%) was frequent. About one-third had been binge eating and/or vomiting in recent weeks and these behaviours were associated with pain in the teeth and snacking. Almost two out of three participants were concerned about informing their dentist or dental hygienist about their vomiting.

CONCLUSIONS

The ED patients in this study experienced oral problems and exhibited many risk behaviours regarding oral health. Both dental staff and ED staff who meet ED patients should be aware of the risk of oral health problems and preventive measures should be taken.

Early intervention for eating disorders

PURPOSE OF REVIEW

Research on early intervention for eating disorders has started to gain traction and examples of this in practice are increasing. This review summarizes findings over the past 3 years, focusing on the clinical effectiveness of early intervention in practice and the barriers and facilitators to its implementation.

RECENT FINDINGS

Recent developments in early intervention for eating disorders can be divided into three broad themes: research that has examined the efficacy of early intervention pathways in practice, research that has informed understanding of the target patient groups of early intervention (via clinical staging models, e.g.), and research that has suggested new ways to progress early intervention, towards becoming a standard part of best practice care.

SUMMARY

Early intervention pathways have shown promising clinical outcomes and are viewed positively by patients, clinicians and other stakeholders. However, more robust trials of their efficacy, effectiveness and cost-effectiveness are needed. Additionally, barriers to early intervention have been identified (e.g. delayed help-seeking); research must now develop and evaluate strategies to address these. Finally, the early intervention models in practice are underpinned partly by clinical staging models for eating disorders, which require further development, especially for eating disorders other than anorexia nervosa.

Improving adult inpatient eating disorder treatment: perspectives of a sample of individuals in Canada with lived experience

BACKGROUND

Eating disorders (EDs) are increasingly common, affecting over one million individuals in Canada. Canadian adults (i.e., age 18+) requiring medical stabilization for their eating disorder (ED) may be referred to adult inpatient (IP) ED treatment for care. Recent Canadian publications have brought attention to the need for improved approaches to Canadian ED treatment; urging researchers to seek perspectives of people with lived experience to determine how to best do so. This study explored the perspectives of a sample of individuals in Canada with lived experience to identify recommendations for improvement of adult IP ED treatment programs and processes.

METHODS

Employing a transformative philosophical view and feminist standpoint theory, this study utilizes a qualitative hermeneutic phenomenological approach to fulfill the objectives. Eleven participants with lived adult IP ED treatment experiences from across Canada were interviewed individually, to discuss their experiences and recommendations regarding referral, transitions into and out of care, and treatment itself using an online video conference platform. Data were analyzed using interpretative phenomenological analysis. A comprehensive list of recommendations was drafted and brought back to participants for feedback. The feedback was implemented to create the final list of recommendations.

RESULTS

Several limitations of referral, transitions, and treatment, facilitated and exacerbated by stigma at individual and societal levels, were identified by participants. These included guilt and shame upon referral, lack of respect and trust from healthcare providers during transitions, and lack of consideration of social determinants of health during treatment. Participant-informed recommendations, which can be categorized as interim support, individualized care, dignified treatment, resources, and stigma, were identified to ameliorate the experiences of those in Canada with EDs while also combatting stigma.

CONCLUSIONS

Adult IP ED treatment in Canada is in urgent need of significant change to meet the needs of those requiring care and to address harmful stigma. Implementing participant-informed recommendations may aid in achieving this goal. The meaningful inclusion of those with lived experience, particularly marginalized populations, will be paramount to the development of an approach to adult IP ED treatment that properly serves individuals in Canada who need it.

Do Swedish rock-climbers exhibit more eating disorder and body dissatisfaction symptoms than non-climbers? A cross-sectional study

OBJECTIVES

The inclusion of rock-climbing in the Olympic Games has increased participation in the sport and attention to athletes' health. In sports where the importance of low body weight is considerate, there is an increased risk of developing eating disorders (EDs). There is sparse research on EDs among rock-climbers. The primary aim was to map ED symptoms among rock-climbers compared with controls. The secondary aim was to analyze differences in body dissatisfaction. Comparisons between rock-climbing levels and sexes were performed.

DESIGN

This is a cross-sectional study in a larger prospective longitudinal study series, CLIMB: Climber's Longitudinal attitudes towards Injury, Mental health and Body image, using baseline data.

PARTICIPANTS

Swedish rock-climbers, at an advanced and elite level according to the International Rock Climbing Research Association, participated. Participants were at least 13 years old. 183 rock-climbers partook with a mean age of 29.5 (SD=9.1) with two participants under 15 years old. 180 controls partook with a mean age of 29.0 (SD=8.9). There were no control participants under 15 years of age.

PRIMARY AND SECONDARY OUTCOME MEASURES

Data was gathered through a self-report questionnaire collecting the primary outcome measure, ED symptoms (Eating Disorders Examination Questionnaire (EDE-Q) V.6.0) and the secondary outcome measure, body dissatisfaction (Body Shape Questionnaire-8C).

RESULTS

There were no differences between rock-climbers and controls regarding ED symptoms. Symptoms were higher among female rock-climbers (26%) than male (5.8%). Regarding body dissatisfaction, the control group reported higher levels compared with rock-climbers. At least a mild concern was observed in 13.3% of male rock-climbers, compared with 47.4% of females.

CONCLUSIONS

Although there was no difference in the EDE-Q V.6.0 between rock-climbers and controls, females reported significantly more symptoms than men. Regarding body dissatisfaction, female rock-climbers exhibited higher levels of dissatisfaction than males. Further, higher levels of dissatisfaction were reported in controls, especially in men, where symptoms were three times higher than rock-climbers.

TRIAL REGISTRATION NUMBER

NCT05587270.

An appetite to win: Disordered eating behaviours amongst competitive cyclists

Competitive cyclists may be vulnerable to disordered eating (DE) and eating disorders (ED) due to perceived body composition optimisation and external influences within cycling culture and from stakeholders. Therefore, this study aimed to assess DE and ED risk in competitive cyclists using the Eating Attitudes Test (EAT-26), explore differences in responses based on sex, discipline and level of competition, and to gain insights into contributing factors towards DE via open-ended survey questions. In total, 203 participants completed a mixed-method questionnaire. Eating disorders were reported by 5.7% ( n = 11) of participants, with three being historic cases. The median (inter-quartile range) EAT-26 score was 8 (12) of a total possible score of 78. Disordered eating risk was observed in 16.7% of participants due to an EAT-26 score ≥20. Female participants had significantly higher scores than male participants (12.5 ± 17.5 vs. 6.5 ± 10.0; p = .004). There was no significant difference between road cyclists and off-road cyclists (7.0 ± 13.25 vs. 8.0 ± 10.5; p = .683). There was a significant difference in scores between novice/club/regional and national/elite/professional cyclists (6.0 ± 11.25 vs. 10.5 ± 12.0; p = .007). Thematic analysis of open-text responses found that the social environment of competitive cycling contributed towards DE behaviours and body image issues. These findings indicate competitive cyclists do appear to be an ‘at risk’ population for DE/ED. Therefore, there is need for stakeholders to enhance nutritional services, nutrition education and create supportive athlete environments.

Ethical concerns in caring for persons with anorexia nervosa: content analysis of a series of documentations from ethics consultations

BACKGROUND

Caring for patients with anorexia nervosa (AN) is associated with high levels of moral distress among healthcare professionals. The main moral conflict has been posited to be between applying coercion to prevent serious complications such as premature death and accepting treatment refusals. However, empirical evidence on this topic is scarce.

METHODS

We identified all 19 documentations of ethics consultations (ECs) in the context of AN from one clinical ethics support service in Switzerland. These documentations were coded with a sequential deductive-inductive approach and the code system was interpreted in a case-based manner. Here, we present findings on patient characteristics and ethical concerns.

FINDINGS

The ECs typically concerned an intensely pretreated, extremely underweight AN patient endangering herself by refusing the proposed treatment. In addition to the justifiability of coercion, frequent ethical concerns were whether further coerced treatment aimed at weight gain would be ineffective or even harmful, evidencing uncertainty about beneficence and non-maleficence and a conflict between these principles. Discussed options included harm reduction (e.g. psychotherapy without weight gain requirements) and palliation (e.g. initiating end-of-life care), the appropriateness of which were ethical concerns in themselves. Overall, nine different types of conflicts between or uncertainties regarding ethical principles were identified with a median of eight per case.

CONCLUSIONS

Ethical concerns in caring for persons with AN are diverse and complex. To deal with uncertainty about and conflict between respect for autonomy, beneficence and non-maleficence, healthcare professionals consider non-curative approaches. However, currently, uncertainty around general justifiability, eligibility criteria, and concrete protocols hinders their adoption.

"The only way that they can access help quickly": a qualitative exploration of key stakeholders' perspectives on guided self-help interventions for children and young people with eating disorders

BACKGROUND

There is a significant unmet treatment need for children and young people (CYP) with eating disorders. Guided self-help interventions have the potential to expand access to evidence-based treatments. Guided self-help is a type of low intensity psychological intervention where individuals engage with a workbook or online programme, with the support of a health professional. Its primary aim is to equip patients and/or their caregivers with self-management skills. However, little is currently known about the acceptability and suitability of guided self-help interventions for CYP with eating disorders. This study aimed to explore the perspectives of three key stakeholder groups - CYP with lived experience of eating disorders, parents/carers, and healthcare professionals - on guided self-help for this population.

METHODS

Qualitative focus groups and semi-structured interviews were conducted with 11 CYP (aged 13-19 years) with lived experience of eating disorders, 12 parents/carers, and 10 healthcare professionals. The study comprised a total of seven focus groups (including 2 with CYP, 3 with parent/carers, and 2 with healthcare professionals), as well as four semi-structured interviews (including 3 with CYP and 1 with a parent/carer). Discussion topics included past experiences of using/delivering guided self-help, the suitability of guided self-help for CYP with eating disorders, and preferences towards the content, structure and modes of guided self-help. Data were analysed using reflexive thematic analysis.

RESULTS

Three themes were generated across all three stakeholder groups. Theme one, Bridging the gap, highlighted the role of guided self-help in increasing access to psychological support for CYP with eating disorders. Theme two, Timing matters, considered the suitability of guided self-help for CYP with eating disorders at different stages of illness and the care pathway. Theme three, One size does not fit all, emphasised the heterogeneity of eating disorders and the need for a personalised and flexible approach in guided self-help.

CONCLUSIONS

Findings from this study lay a foundation for the future design and delivery of guided self-help interventions for CYP with eating disorders. Future work must consider these findings in the context of best available research evidence to optimise the potential utility of guided self-help for this population.

Influence of Nutrition, Lifestyle Habits, and Socio-Demographic Determinants on Eating Disorder Symptoms in the Spanish Young Adult Population: A Cross-Sectional Nationwide Survey

Eating disorders represent a complex and multifaceted public health challenge, highly prevalent among young people. Background and Objectives: To examine the prevalence of eating disorders in the Spanish young adult population aged 18-30 years, and their correlation with various eating habits and lifestyle factors. Materials and Methods: A descriptive, cross-sectional survey was carried out using a non-probabilistic snowball sample. The valid and reliable NutSo-HH Scale was employed to collect data on nutrition, lifestyle, and health habits. Results: Data were collected from 9692 Spanish young adults, of which 101 (1.04%) were diagnosed with anorexia nervosa and 71 (0.73%) with bulimia nervosa. The prevalence of anorexia and bulimia was significantly higher (p < 0.001) in women than in men, regardless of socio-demographic variables such as educational level, income, region, and size of city of residence. A considerable percentage of participants showed possible symptoms of eating disorders. Nutritionally, individuals with eating disorders consumed less fast food and fried or ultra-processed food but tended to consume coffee and energy drinks more frequently. Additionally, sleep quality and duration were more adversely affected in individuals with eating disorders compared to the general population. Sedentary lifestyles did not significantly differ between those with eating disorders and healthy individuals, though physical activity increased in people with bulimia. Conclusions: The interplay between young adults' dietary habits, lifestyle factors, and mental health underscores the urgent need for targeted interventions to effectively address these complex public health challenges.

Eating disorders and health literacy in Germany: results from two representative samples of adolescents and adults

Introduction

Eating disorders are associated with substantial burden for the affected individuals including negative health outcomes and increased mortality. So far, prevention programs for eating disorders have yielded mixed results concerning their efficacy. Therefore, more targeted prevention programs need to be developed. Health literacy has been identified as a potential influencing factor of eating disorders. This study aimed at exploring the relationship between likely cases of eating disorders and health literacy, alongside additional sociodemographic factors.

Materials and methods

Two large samples of adults (N = 3,011) and adolescents (N = 1,021) representative of the German-speaking population in Germany were recruited. Likely cases of eating disorders were identified using the SCOFF questionnaire. Health literacy was assessed with the HLS-EU-Q16 questionnaire. Sociodemographic information, including age, gender, social status and level of education, and subjective body image were obtained. χ2-tests of independence were calculated to determine the association between the investigated constructs.

Results

Suspected eating disorders were more likely in female than male adolescents but were not related to gender in adults. Rates of suspected eating disorders increased with increasing age in adolescents and decreased with increasing age in adults. While levels of education were unrelated to suspected eating disorders, low social status was associated with higher rates of suspected eating disorders in adults but not adolescents. Inadequate or problematic health literacy and negative body image were associated with higher rates of suspected eating disorders compared to adequate health literacy and more positive body image.

Discussion

Likely cases of eating disorders are related to health literacy and body image as well as sociodemographic factors. These constructs should therefore be addressed in future research to improve prevention programs.

Navigating the ethical complexities of severe and enduring (longstanding) eating disorders: tools for critically reflective practice and collaborative decision-making

Decisions about the treatment of eating disorders do not occur in a socio-political vacuum. They are shaped by power relations that produce categories of risk and determine who is worthy of care. This impacts who gets access to care and recognition of rights in mental health services. Globally, there are calls for more human rights-based approaches in mental health services to reduce coercion, improve collaborative decision making and enhance community care. Treating individuals with longstanding, Severe and Enduring Eating Disorders (SEED) or Severe and Enduring Anorexia Nervosa (SE-AN) can be particularly problematic when it involves highly controversial issues such as treatment withdrawal and end-of-life decisions and, where legally permissible, medically assisted dying. In this article, we argue that the socio-political context in which clinical decision making occurs must be accounted for in these ethical considerations. This encompasses considerations of how power and resources are distributed, who controls these decisions, who benefits and who is harmed by these decisions, who is excluded from services, and who is marginalised in decision making processes. The article also presents tools for critically reflective practice and collaborative decision-making that can support clinicians in considering power factors in their practice and assisting individuals with longstanding eating disorders, SEED and SE-AN to attain their rights in mental health services.

Clinical and scientific review of severe and enduring anorexia nervosa in intensive care settings: introducing an innovative treatment paradigm

BACKGROUND

Anorexia nervosa is a serious and potentially lethal psychiatric disorder. Furthermore, there is significant evidence that some individuals develop a very long-standing form of the illness that requires a variety of different treatment interventions over time.

OBJECTIVE

The primary goal of this paper was to provide a review of treatment strategies for severe and enduring anorexia nervosa (SE-AN) with the particular focus on treatments involving hospital care. Additionally, we wish to highlight a contemporary approach to such care and provide qualitative reactions to this model from both staff and patients.

METHODS

A selective and strategic review of the treatment literature for SE-AN was conducted for the current paper. Emphasis was placed on clinical or scientific papers related to hospital-based care. Additionally, staff who work on a specific inpatient eating disorder unit with a substantial treatment program for SE-AN, along with a number of SE-AN patients were surveyed regarding their experiences working on, or receiving treatment on the unit. Importantly, the staff of this unit created a specific treatment protocol for individuals receiving hospital care. The results of the highlight both advantages and challenges of a hospital-based protocol oriented toward emphasizing quality of life, medical stability, and a health-promoting meal plan.

DISCUSSION

While there is general inconsistency with the type of treatment that is best suited to individuals with SE-AN, this is particularly true for higher levels of care that rely on inpatient hospital units or residential treatment settings. This is a highly significant clinical topic in need of further clinical and scientific examination.

Pandemic Stringency Measures and Hospital Admissions for Eating Disorders

Importance

Hospitalizations for eating disorders rose dramatically during the COVID-19 pandemic. Public health restrictions, or stringency, are believed to have played a role in exacerbating eating disorders. Few studies of eating disorders during the pandemic have extended to the period when public health stringency restrictions were lifted.

Objective

To assess the association between hospitalization rates for eating disorders and public health stringency during the COVID-19 pandemic and after the easing of public health restrictions.

Design, Setting, and Participants

This Canadian population-based cross-sectional study was performed from April 1, 2016, to March 31, 2023, and was divided into pre-COVID-19 and COVID-19-prevalent periods. Data were provided by the Canadian Institute for Health Information and the Institut National d'Excellence en Santé et Services Sociaux for all Canadian provinces and territories. Participants included all children and adolescents aged 6 to 20 years.

Exposure

The exposure was public health stringency, as measured by the Bank of Canada stringency index.

Main Outcomes and Measures

The primary outcome was hospitalizations for a primary diagnosis of eating disorders (International Statistical Classification of Diseases and Related Health Problems, Tenth Revision code F50), stratified by region, age group, and sex. Interrupted time series analyses based on Poisson regression were used to estimate the association between the stringency index and the rate of hospitalizations for eating disorders.

Results

During the study period, there were 11 289 hospitalizations for eating disorders across Canada, of which 8726 hospitalizations (77%) were for females aged 12 to 17 years. Due to low case counts in other age-sex strata, the time series analysis was limited to females within the 12- to 17-year age range. Among females aged 12 to 17 years, a 10% increase in stringency was associated with a significant increase in hospitalization rates in Quebec (adjusted rate ratio [ARR], 1.05; 95% CI, 1.01-1.07), Ontario (ARR, 1.05; 95% CI, 1.03-1.07), the Prairies (ARR, 1.08; 95% CI, 1.03-1.13), and British Columbia (ARR, 1.11; 95% CI, 1.05-1.16). The excess COVID-19-prevalent period hospitalizations were highest at the 1-year mark, with increases in all regions: Quebec (RR, 2.17), Ontario (RR, 2.44), the Prairies (RR, 2.39), and British Columbia (RR, 2.02).

Conclusion and Relevance

In this cross-sectional study of hospitalizations for eating disorders across Canada, hospitalization rates for eating disorders in females aged 12 to 17 years were associated with public health measure stringency. The findings suggest that future pandemic preparedness should consider implications for youths at risk for eating disorders and their resource and support needs.

Pathways from adolescent screen time to eating related symptoms: a multilevel longitudinal mediation analysis through self-esteem

OBJECTIVE

Screen time and self-esteem have been shown to be important correlates of eating disorders in adolescence. However, there is an absence of longitudinal studies that distinguish between time-varying factors, accounting for parallel developmental changes and common underlying vulnerability.

DESIGN

A total of 3,801 adolescents were administered self-report measures, annually, over the course of 5 years. The association of screen time (social media use, television watching, video gaming) on eating related symptoms was analyzed using a longitudinal Bayesian multilevel path analysis framework. Self-esteem was examined as a mediating factor in this model. This study investigated direct and indirect associations at between-person, concurrent within-person, and lagged-within-person levels, while controlling for gender.

RESULTS

The findings revealed that all types of screen time exposure were significantly associated with eating related symptoms at between and within-person levels. A significant association at the lagged-within person level was only revealed for social media use. Self-esteem was found to be a significant mediating factor between screen time and eating related symptoms.

CONCLUSION

An increase in social media use one year was associated with increased of eating related symptoms two years later through lower self-esteem. Implications for prevention are discussed.

Association of OPRD1 Gene Variants with Changes in Body Weight and Psychometric Indicators in Patients with Eating Disorders

Objectives: This study aimed to investigate whether genetic variations in the OPRD1 gene affect psychopathological symptoms and personality dimensions in eating disorders (ED) patients and/or contribute to ED risk. Methods: The study involved 221 female patients with anorexia nervosa (AN), 88 with bulimia nervosa (BN), and 396 controls. Sixteen tag-single nucleotide polymorphisms (SNPs) in OPRD1 were identified. Psychometric evaluations were conducted using the Symptom Checklist 90 Revised (SCL-90R) and the Eating Disorders Inventory Test-2 (EDI-2). p-values obtained by regression models were corrected for multiple testing by the False Discovery Rate (FDR) method. Results: In AN patients, genotypes rs204077TT and rs169450TT were linked to lower body-mass index (BMI) values (FDR-q = 0.035 and 0.017, respectively), as was rs2234918 in a log-additive model (BMI: 18.0 ± 0.28, 17.22 ± 0.18 and 16.59 ± 0.39 for TT, TC and CC carriers, FDR-q = 0.012). Additionally, AN patients carrying the rs72665504AA genotype had higher scores in interpersonal distrust (FDR-q = 0.030), whilst BN carriers of rs513269TT and rs2873795TT showed lower scores in ineffectiveness (FDR-q = 0.041 and FDR-q = 0.021). In the AN group, BMI correlated with variability in a distal haplotype (rs508448/rs204077/rs223491, FDR-q = 0.028), which was also associated with the global positive symptom total (PST) index of SCL-90R (FDR-q = 0.048). Associations were more noticeable in BN patients; again, the distal region of the gene was linked to EDI-2 total scores (FDR-q = 0.004-0.048 for the four last haplotypes) and two global SCL-90R indices (GSI: FDR-q = 0.011 and positive symptom distress index (PSDI): FDR-q = 0.003 for the last s204077/rs2234918/rs169450 combination). No associations with ED risk were observed. Conclusions: Genetic variation in the OPRD1 gene, particularly in its distal region, is associated with BMI and psychopathological comorbidities in ED patients.

Exploring the relationship between low energy availability, depression and eating disorders in female athletes: a cross-sectional study

Objective

This cross-sectional study aimed to investigate the role of low energy availability (LEA) in the interplay between depression and disordered eating/eating disorders (DE/EDs) among female athletes. The International Olympic Committee consensus statement on Relative Energy Deficiency in Sport (REDs) identified depression as both an outcome of LEA and a secondary risk factor for REDs. However, the direct link between LEA and depression has yet to be fully established.

Methods

We assessed 57 female athletes participating in weight-sensitive sports at different levels of competition training at least four times a week. Assessment was conducted using laboratory analyses, clinical interviews and the Patient Health Questionnaire-9 questionnaire. Participants were recruited through various channels, including German sports clubs, Olympic training centres, social media platforms and the distribution of flyers at competitions. Indicators of LEA were defined if at least two of the following three physiological indicators were present: menstrual disturbances, suppressed resting metabolic rate and suppressed thyroid hormones. Logistic and linear regression analysis were used to examine the relationship between LEA, depression and DE/ED.

Results

The lifetime prevalence of depressive disorders was 29.6%. 19% of the participants were diagnosed with an ED, and an additional 22.6% exhibited DE.LEA was not significantly associated with either lifetime prevalence of depressive disorders or current depressive symptoms. However, a significant association was found between depression and DE/ED in terms of both lifetime prevalence and current depressive symptoms. DE/ED increased the probability of lifetime prevalence of depressive disorders by 34% (19%-49%) compared with normal eating behaviour.

Conclusion

We found no evidence that LEA is an independent factor for depression in female athletes. Its association with LEA and REDs appears to occur primarily in the presence of DE/ED.

Towards collaborative care for severe and enduring Anorexia Nervosa - a mixed-method approach

BACKGROUND

Severe and Enduring Eating Disorders (SEED), in particular SEED-Anorexia Nervosa (SE-AN), may represent the most difficult disorder to treat in psychiatry. Furthermore, the lack of empirical research in this patient group, and, consequently the lack of guidelines, call for an urgent increase in research and discussion within this field. Meanwhile experts concur that effective care should be structured in a collaborative manner.

OBJECTIVE

To identify the challenges in providing care to patients with SE-AN in the Dutch healthcare context, and propose a collaborative care treatment model to address these issues.

METHODS

A pragmatic mixed-method approach was used, structured as follows: (1) Identifying perceived barriers and treatment needs from the viewpoint of both patients and eating disorder healthcare professionals through an evaluation questionnaire; (2) Investigating current treatment practices for SEED/SE-AN via benchmarking; (3) Gaining insight into the optimal structure and content of care by interviewing network partners and experts-by-experience. Based on these findings, and drawing from literature on severe and enduring disorders, a treatment model for SE-AN was proposed and implemented.

RESULTS

The key challenges identified included a lack of knowledge about eating disorders among network partners, treatment ambivalence among patients and poor collaboration between professionals. The proposed model enhances self-management and collaborative relationships with healthcare providers, offers user-friendly and practical guidance, and aims at stabilization, reducing relapses, deterioration, and readmissions, thereby being cost-effective. Importantly, the model operates across levels of care (primary, secondary, tertiary).

CONCLUSION

This study, describing a collaborative care program for SE-AN, developed and implemented in a highly specialized treatment center for eating disorders, sets the stage for further explanatory/efficacy research to build on the findings in this study, with the following aims: addressing the critical gap in care for SEED/SE-AN, improving better healthcare organization, reducing relapse rates, and lowering costs for this often overlooked patient group.

A Brief Online Intervention Based on Dialectical Behavior Therapy for a Reduction in Binge-Eating Symptoms and Eating Pathology

Dysregulated eating behaviors, comprising subthreshold and clinical binge-eating disorder (BED) and bulimia nervosa (BN), are increasing among the general population, with a consequent negative impact on one's health and well-being. Despite the severity of these outcomes, people with BED and BN often face a delay in receiving a diagnosis or treatment, often due to difficulties in accessing care. Hence, evidence-based and sustainable interventions for eating symptomatology are needed. The present study aims to assess the effectiveness of a web-based 10-session multidisciplinary group intervention based on Dialectical Behavior Therapy (DBT) for BED and BN, aimed at reducing psychological distress and binge-eating-related symptomatology in a sample of patients with dysregulated eating behaviors and including one session of nutritional therapeutic education. A total of 65 participants (84.6% F; age M = 38.5 ± 13.2; experimental group, N = 43; treatment-as-usual group, TAU, N = 22) took part in the study. The results show, after the 9 weekly sessions, a significant reduction in binge-eating-related symptomatology and general psychopathology and an increased self-esteem and eating self-efficacy in social contexts in the experimental group compared to the treatment-as-usual group (T0 vs. T1). Improvements in the experimental group were significantly maintained after one month from the end of the intervention (T2) in terms of binge-eating symptoms, general psychopathology, and eating self-efficacy in social contexts. This study supports the effectiveness of a brief web-based multidisciplinary group intervention in reducing eating symptomatology and psychological distress and enhancing self-esteem and eating self-efficacy in a group of people with dysregulated eating behaviors. Brief web-based interventions could represent an accessible and sustainable resource to address binge-eating-related symptomatology in public clinical settings.

An advanced Artificial Intelligence platform for a personalised treatment of Eating Disorders

Introduction

Eating Disorders (EDs) affect individuals globally and are associated with significant physical and mental health challenges. However, access to adequate treatment is often hindered by societal stigma, limited awareness, and resource constraints.

Methods

The project aims to utilize the power of Artificial Intelligence (AI), particularly Machine Learning (ML) and Deep Learning (DL), to improve EDs diagnosis and treatment. The Master Data Plan (MDP) will collect and analyze data from diverse sources, utilize AI algorithms for risk factor identificat io n, treatment planning, and relapse prediction, and provide a patient-facing chatbot for information and support. This platform will integrate patient data, support healthcare professionals, and empower patients, thereby enhancing care accessibility, personalizing treatment plans, and optimizing care pathways. Robust data governance measures will ensure ethical and secure data management.

Results

Anticipated outcomes include enhanced care accessibility and efficiency, personalized treatment plans leading to improved patient outcomes, reduced waiting lists, heightened patient engagement, and increased awareness of EDs with improved resource allocation.

Discussion

This project signifies a pivotal shift towards data-driven, patient-centered ED care in Italy. By integrat ing AI and promoting collaboration, it seeks to redefine mental healthcare standards and foster better well- being among individuals with EDs.

Treatment of Eating Disorders: Current Status, Challenges, and Future Directions

Specific psychological treatments have demonstrated efficacy and represent the first-line approaches recommended for anorexia nervosa, bulimia nervosa, and binge-eating disorder. Unfortunately, many patients, particularly those with anorexia nervosa, do not derive sufficient benefit from existing treatments, and better or alternative treatments for eating disorders are needed. Less progress has been made in developing pharmacologic options for eating disorders. No medications approved for anorexia nervosa exist, and only one each exists for bulimia nervosa and for binge-eating disorder; available data indicate that most patients fail to benefit from available medications. Longer and combined treatments have generally not enhanced outcomes. This review presents emerging findings from more complex and clinically relevant adaptive treatment designs, as they offer some clinical guidance and may serve as models for future enhanced treatment research.

Diagnosed eating disorders in Danish registers - incidence, prevalence, mortality, and polygenic risk

Eating disorders are a group of severe and potentially enduring psychiatric disorders associated with increased mortality. Compared to other severe mental illnesses, they have received relatively limited research attention. Epidemiological studies often only report relative measures despite these being difficult to interpret having limited practical use. The aims of this study were to evaluate the incidence and prevalence of diagnosed anorexia nervosa (AN), bulimia nervosa, and eating disorder not otherwise specified recorded in Danish hospital registers and estimate both relative and absolute measures of subsequent mortality - both all-cause and cause-specific in a general nationwide population of 1,667,374 individuals. In a smaller, genetically informed case-cohort sample, the prediction of polygenic scores for AN, body fat percentage, and body mass index on AN prevalence and severity was estimated. Despite males being less likely to be diagnosed with an eating disorder, those that do have significantly increased rates of mortality. AN prevalence was highest for individuals with high AN and low body fat percentage/body mass index polygenic scores.

Does hopelessness predict treatment outcomes in adults with binge-spectrum eating disorders?

Using data from 165 adult participants who enrolled in four studies of cognitive-behavioral therapy (CBT) for binge-spectrum eating disorders (EDs), this secondary analysis examined 1) whether pretreatment hopelessness predicted posttreatment eating pathology, loss-of-control (LOC) eating frequency, and purging frequency; 2) whether treatment had an indirect effect on those outcomes through change in hopelessness; and 3) whether treatment had an indirect effect on hopelessness through those ED measures. The Eating Disorder Examination was used to assess overall eating pathology, LOC frequency, and purging frequency. Hopelessness was measured with one item from the Beck Depression Inventory-II. Regression models showed that pretreatment hopelessness predicted posttreatment LOC eating frequency but not overall eating pathology or purging frequency. Single-group tests of indirect effects showed no effect of reduction in hopelessness on reduction in ED symptoms, but there was an effect of reduction in ED symptoms on reduction in hopelessness.

Exploring mental health dynamics during eating disorder treatment: A psychometric network study with panel data

To explore mental health associations during eating disorder (ED) treatment. Based on the dual-continua model of mental health, general and ED-specific psychopathology, as well as emotional, psychological, and social well-being were considered as mental health domains.

Network analyses with panel data were applied to explore within- (temporal and contemporaneous networks) and between-person effects in a sample of 1250 female ED patients during 12 months of outpatient treatment. The associations between the domains and their centrality were examined. Autoregressive and cross-lagged effects were also estimated.

ED psychopathology was the most central domain in the temporal network. ED psychopathology changes predicted further ED psychopathology changes and small changes in the other domains. Weak bi-directional associations were found between changes in the well-being domains and general psychopathology. In contrast to the temporal network, ED psychopathology was the least central and psychological well-being the most central domain in the contemporaneous and between-subjects networks. This suggests a central role of psychological well-being for experiencing mental health within time points.

ED psychopathology may change relatively independent from other mental health domains. Well-being domains may be considered as more stable aspects of mental health.

Interplay of polygenic liability with birth-related, somatic, and psychosocial factors in anorexia nervosa risk: a nationwide study

BACKGROUND

Although several types of risk factors for anorexia nervosa (AN) have been identified, including birth-related factors, somatic, and psychosocial risk factors, their interplay with genetic susceptibility remains unclear. Genetic and epidemiological interplay in AN risk were examined using data from Danish nationwide registers. AN polygenic risk score (PRS) and risk factor associations, confounding from AN PRS and/or parental psychiatric history on the association between the risk factors and AN risk, and interactions between AN PRS and each level of target risk factor on AN risk were estimated.

METHODS

Participants were individuals born in Denmark between 1981 and 2008 including nationwide-representative data from the iPSYCH2015, and Danish AN cases from the Anorexia Nervosa Genetics Initiative and Eating Disorder Genetics Initiative cohorts. A total of 7003 individuals with AN and 45 229 individuals without a registered AN diagnosis were included. We included 22 AN risk factors from Danish registers.

RESULTS

Risk factors showing association with PRS for AN included urbanicity, parental ages, genitourinary tract infection, and parental socioeconomic factors. Risk factors showed the expected association to AN risk, and this association was only slightly attenuated when adjusted for parental history of psychiatric disorders or/and for the AN PRS. The interaction analyses revealed a differential effect of AN PRS according to the level of the following risk factors: sex, maternal age, genitourinary tract infection, C-section, parental socioeconomic factors and psychiatric history.

CONCLUSIONS

Our findings provide evidence for interactions between AN PRS and certain risk-factors, illustrating potential diverse risk pathways to AN diagnosis.

Integrating "Lumpers" versus "Splitters" Perspectives: Toward a Hierarchical Dimensional Taxonomy of Eating Disorders from Clinician Ratings

This study describes a hierarchical dimensional model of eating-disorder (ED) classification based on the Hierarchical Taxonomy of Psychopathology (HiTOP). Participants were community-recruited adults with an ED (N=252; 81.9% female). We used a modified version of Goldberg's (2006) method, which involved sequentially extracting latent factors using exploratory structural equation modeling, resulting in a 10-factor hierarchical-dimensional model. Dimensions predicted 92.4% and 58.7% of the variance in recovery outcomes at six-month and one-year, respectively. Compared to other illness indicators (e.g., DSM diagnoses, dimensional ED impairment scores, weight/shape overvaluation, and DSM ED severity specifiers), hierarchical dimensions predicted .88 to 334 times more variance in ED behaviors at baseline and 1.95 to 80.8 times more variance in psychiatric impairment at one-year follow-up. Results suggest that reducing within-disorder heterogeneity for EDs within the broader context of internalizing symptoms provides a powerful framework from which to predict outcomes and understand symptoms experienced by those with EDs.

Prevalence of problematic eating behavior and assessment of awareness on eating disorder among medical students

Background

There are few studies that highlight the problematic eating behavior of college students; however, similar data on the medical undergraduate population is sparse, especially in India. Awareness among medical students would be considered different compared to other students, owing to their training and education.

Aim

To know the prevalence of problematic eating behavior in medical undergraduate students and to measure the extent of awareness regarding problematic eating behavior present amongst the students.

Materials and Methods

The present study was a cross-sectional study conducted over 2 months that included students (1st -4th year and interns) aged 17-30 years, studying MBBS. Ethical approval to do the study was taken from the Institutional Ethics Committee. Purposive sampling was done. Those students who gave informed consent to be a part of this study and were not diagnosed with any severe mental and physical illness were included in this study. Socio-demographic data was collected in a semi-structured proforma. The questionnaire was given to the students to fill up. The questionnaire included EAT-26 (Eating Attitudes Test-26) score for screening the students for problematic eating behavior. For objectively assessing awareness amongst the students regarding the same, a few questions of knowledge, attitude, and practice (KAP) on problematic eating were included in the form. The result was analyzed using SPSS- 25 (Statistical Package for Social Sciences) and appropriate statistical tests.

Results

Among Medical undergraduates, 19.9% had EAT-26 score more than or equal to 20, suggesting some problematic eating behavior. A total of 36.7% of students were obese, while 5.6% were underweight. Gender and background do not play any role in the causation of Problematic Eating Behaviour (PEB). There was a significant difference in the EAT score with respect to the education of the head of the family (P < 0.01), positive history of mental illness in the family (P = 0.01), positive history of childhood obesity (P < 0.01), and positive history of bullying (P < 0.01). Awareness or knowledge about eating disorders is high among MBBS graduates, which could be a protective factor in general.

Conclusion

Obesity is a more concerning issue in the medical undergraduate population rather than underweight. Childhood obesity and bullying emerge as important factors affecting the eating attitudes and behavior among medical graduates.

Maladaptive exercise in eating disorders: lifetime and current impact on mental health and treatment seeking

BACKGROUND

Many patients with eating disorders report exercise as a central symptom of their illness-as a way to compensate for food intake, prevent weight-gain, and/or reduce negative affect. Previous findings show associations between maladaptive exercise and more severe eating disorder pathology, higher risk for relapse, other co-morbid symptoms, and worse treatment outcome.

METHODS

In this study, we included 8252 participants with eating disorders and investigated associations between maladaptive exercise (both lifetime and current) and ED pathology, illness duration, depression, anxiety, self-harm and suicidal ideation, and treatment seeking patterns in individuals with lifetime maladaptive exercise. Participants were included via the Swedish site of the large global study The Eating Disorders Genetics Initiative (EDGI) and completed measures of both lifetime and current symptomatology.

RESULTS

Results indicate that lifetime maladaptive exercise is associated with higher prevalence of lifetime depression and anxiety and with patients more often receiving treatment, although these results need to be investigated in future studies. Current maladaptive exercise was associated with more severe ED symptoms, and higher levels of depression, anxiety, obsessive-compulsive traits, and suicidal ideation.

CONCLUSIONS

Our findings point to the complexities of exercise as an eating disorder symptom and the need for clearly assessing and acknowledging this, as well as tailoring interventions to treat this symptom to achieve sustainable recovery.

The optimal cut-off score of the Eating Attitude Test-26 for screening eating disorders in Japan

PURPOSE

The Eating Attitude Test-26 (EAT-26) is a screening tool for eating disorders (EDs) in clinical and non-clinical samples. The cut-off score was suggested to be varied according to target population. However, no studies have examined the appropriateness of the originally proposed score of 20 for screening DSM-5 eating disorders in Japan. This study aimed to identify an appropriate cut-off score to better differentiate clinical and non-clinical samples in Japan for EDs.

METHODS

The participants consisted of 54 patients with anorexia nervosa restricting type, 58 patients with anorexia nervosa binge-eating/purging type, 37 patients with bulimia nervosa diagnosed according to DSM-5 criteria, and 190 healthy controls (HCs). Welch's t test was used to assess differences in age, body mass index (BMI), and total EAT-26 scores between HCs and patients with EDs. Receiver operating characteristic (ROC) analysis was conducted to identify the optimal cut-off score.

RESULTS

The HCs had significantly higher BMI and lower total EAT-26 mean scores than patients with EDs. The area under the ROC curve was 0.925, indicating that EAT-26 had excellent performance in discriminating patients with EDs from HCs. An optimal cut-off score of 17 was identified, with sensitivity and specificity values of 0.866 and 0.868, respectively.

CONCLUSIONS

The result supports the suggestions that optimal cut-off score should be different according to target populations. The newly identified cut-off score of 17 would enable the identification of patients with EDs who have been previously classified as non-clinical samples in the EAT-26 test.

LEVEL OF EVIDENCE

III: evidence obtained from case-control analytic study.

Adolescents' perspectives on a novel digital treatment targeting eating disorders: a qualitative study

BACKGROUND

Eating disorders in adolescence are associated with high psychological distress, impaired function and high comorbidity. Despite the severity, eating disorders remain highly underdiagnosed and untreated. Digital technology provides promising opportunities for treatment, however studies focusing on digital treatments for adolescents with eating disorders are lacking. The main aim of this study was to explore the perspectives of adolescents with lived experience of eating disorders on factors they deemed to be relevant in the development of a novel digital treatment.

METHODS

A qualitative intervention development study using semi-structured individual interviews. Data collection, coding and analysis were conducted using the principles of reflexive thematic analysis. Participants were adolescents aged 16-19 years, with a self-reported diagnosis of anorexia nervosa, bulimia nervosa or binge eating disorder, currently in the final phase or completed psychological treatment for an eating disorder within the last five years.

RESULTS

A total of 16 adolescents participated in the study, all females. Mean age was 17 ½ years (SD = 1.01). An in-depth understanding of the adolescents' perspectives was developed into three themes: Facilitating self-awareness and readiness to change; Strengthening interpersonal relationships and decreasing social isolation; Ensuring feeling seen and motivating regular use.

CONCLUSIONS

This study provides a unique insight into the perspectives of adolescents with lived experience of eating disorders. The uptake and engagement can be optimized in a novel digital treatment for eating disorders by taking the adolescents perspectives into consideration.

Neuroendocrine disturbances in women with functional hypothalamic amenorrhea: an update and future directions

Functional hypothalamic amenorrhea (FHA) is one of the most common causes of both primary and secondary amenorrhea in women of reproductive age. It is characterized by chronic anovulation and the absence of menses that appear as a result of stressors such as eating disorders, excessive exercise, or psychological distress. FHA is presumed to be a functional disruption in the pulsatile secretion of hypothalamic gonadotropin-releasing hormone, which in turn impairs the release of gonadotropin. Hypoestrogenism is observed due to the absence of ovarian follicle recruitment. Numerous neurotransmitters have been identified which play an important role in the regulation of the hypothalamic-pituitary-ovarian axis and of which the impairment would contribute to developing FHA. In this review we summarize the most recent advances in the identification of contributing neuroendocrine disturbances and relevant contributors to the development of FHA.

Examining Predictors of Psychological Distress Among Youth Engaging with Jigsaw for a Brief Intervention

Risk factors for psychological distress among help-seeking youth are poorly understood. Addressing this gap is important for informing mental health service provision. This study aimed to identify risk factors among youth attending Jigsaw, a youth mental health service in Ireland. Routine data were collected from N = 9,673 youth who engaged with Jigsaw (Mean age = 16.9 years, SD = 3.14), including presenting issues, levels of psychological distress, age, and gender. Confirmatory Factor Analysis identified thirteen factors of clustering issues. Several factors, including Self-criticism and Negative Thoughts, were strongly associated with items clustering as psychological distress, however these factors were poorly predictive of distress as measured by the CORE (YP-CORE: R2 = 14.7%, CORE-10: R2 = 6.9%). The findings provide insight into associations between young people's identified presenting issues and self-identified distress. Implications include applying appropriate therapeutic modalities to focus on risk factors and informing routine outcome measurement in integrated youth mental health services.

Associations between screen use while eating and eating disorder symptomatology: Exploring the roles of mindfulness and intuitive eating

Screen use while eating has been recently identified as a highly common and potentially important specific setting of screen use in relation to eating disorder symptomatology. However, given this area of research is still in its infancy, how screen use while eating may be related to eating disorder symptomatology remains largely unexplored. To fill this gap, the present study probed the potential roles of mindfulness and intuitive eating in the association between screen use while eating and eating disorder symptomatology. A large sample of Chinese adults (N = 800, aged 18-67 years old) recruited through a Chinese survey platform, Credamo, completed questionnaires assessing screen use while eating, eating disorder symptomatology, mindfulness, and intuitive eating. Structural equation modeling was used to test the proposed model. Results confirmed our hypotheses that the association between screen use while eating and eating disorder symptomatology was partially explained by mindfulness and intuitive eating, after adjusting for covariates (e.g., gender, age, body mass index, total screen time, and social media use). That said, higher screen use while eating was associated first with lower mindfulness and then with lower intuitive eating, which in turn were related to higher eating disorder symptomatology. The findings underline the importance of including eating-specific screen use for future research on eating disorder symptomatology and also have implications for an integrative intervention of mindfulness-based approaches and intuitive eating for mitigating the adverse effects of excessive screen use on eating behaviors.

Eating disorder symptom dimensions and protective factors: A structural network analysis study

Eating Disorders (EDs) and related symptoms pose a substantial public health concern due to their widespread prevalence among both genders and associated negative outcomes, underscoring the need for effective preventive interventions. In this context, deepening our understanding of the interplay between ED symptoms and related protective factors appears crucial. Therefore, this study employed a structural network analysis approach considering both ED symptom dimensions (i.e., drive for thinness, bulimic symptoms, and body dissatisfaction) and related protective factors (i.e., body and functionality appreciation, intuitive eating, and self-esteem) to shed light on how these factors are interrelated. A community sample of 1391 individuals (34.4% men; Mage = 26.4 years) completed a socio-demographic schedule and self-report questionnaires. The network showed that the nodes with the highest positive expected influence were body and functionality appreciation, while those with the highest negative expected influence were eating for physical rather than emotional reasons and unconditional permission to eat (i.e., two components of intuitive eating). Crucially, the most relevant bridges between the conceptual communities "ED symptom dimensions" and "Protective factors" were the negative relations between (a) eating for physical rather than emotional reasons and bulimic symptoms, (b) unconditional permission to eat and drive for thinness, and (c) body appreciation and body dissatisfaction. Finally, age, gender, and body mass index did not moderate any edge in the network. The practical implications of these findings are discussed, especially in terms of preventive interventions for ED symptoms.

Characterising illness stages and recovery trajectories of eating disorders in young people via remote measurement technology (STORY): a multi-centre prospective cohort study protocol

BACKGROUND

Eating disorders (EDs) are serious, often chronic, conditions associated with pronounced morbidity, mortality, and dysfunction increasingly affecting young people worldwide. Illness progression, stages and recovery trajectories of EDs are still poorly characterised. The STORY study dynamically and longitudinally assesses young people with different EDs (restricting; bingeing/bulimic presentations) and illness durations (earlier; later stages) compared to healthy controls. Remote measurement technology (RMT) with active and passive sensing is used to advance understanding of the heterogeneity of earlier and more progressed clinical presentations and predictors of recovery or relapse.

METHODS

STORY follows 720 young people aged 16-25 with EDs and 120 healthy controls for 12 months. Online self-report questionnaires regularly assess ED symptoms, psychiatric comorbidities, quality of life, and socioeconomic environment. Additional ongoing monitoring using multi-parametric RMT via smartphones and wearable smart rings ('Ōura ring') unobtrusively measures individuals' daily behaviour and physiology (e.g., Bluetooth connections, sleep, autonomic arousal). A subgroup of participants completes additional in-person cognitive and neuroimaging assessments at study-baseline and after 12 months.

DISCUSSION

By leveraging these large-scale longitudinal data from participants across ED diagnoses and illness durations, the STORY study seeks to elucidate potential biopsychosocial predictors of outcome, their interplay with developmental and socioemotional changes, and barriers and facilitators of recovery. STORY holds the promise of providing actionable findings that can be translated into clinical practice by informing the development of both early intervention and personalised treatment that is tailored to illness stage and individual circumstances, ultimately disrupting the long-term burden of EDs on individuals and their families.

Nutritional and Psychosocial Impact of Food Allergy in Pediatric Age

Treatment of IgE-mediated food allergy involves avoiding the food causing the allergic reaction. In association, an action plan for allergic reactions is indicated, sometimes including self-injectable adrenaline. In addition to these dietary and medical implications, there are two equally important ones: nutritional and psychosocial. From a nutritional point of view, it is known that children suffering from food allergy have a growth delay in height and weight compared to their non-allergic peers. Specifically, this condition is directly related to the specific food excluded from the diet, the number of foods excluded and the duration of the elimination diet. From a psychosocial point of view, the child often cannot eat the foods other guests eat. Children with food allergy may perceive an aura of parental anxiety around their mealtime and may be afraid that what they eat could have harmful consequences for their health. Furthermore, children's and their parents' quality of life appears to be affected. The need to manage the allergy and the nutritional and psychosocial problems positions the pediatric nutritionist and the child neuropsychiatrist as support figures for the pediatric allergist in managing the child with food allergy.

Does adult attachment mediate the relationship between primary emotion traits and eating disorder symptoms?

Objectives

Primary emotion traits and attachment patterns, have been linked to various mental disorders. This study aims to shed more light on the less studied relationship with eating disorder (ED) symptoms.

Methods

A total of 921 non-clinical subjects (69.9% females) were assessed for primary emotions traits (B-ANPS-GL), attachment insecurity (ECR-RD8), and eating disorder pathology (EDE-Q8). A theoretically derived model was evaluated by means of a path analysis with attachment anxiety as assumed mediator variable.

Results

Global problematic eating behavior showed negative correlations with the positive emotions PLAY, CARE, and LUST (r = -0.10 to -0.24), positive correlations with the negative primary emotions ANGER, FEAR, and SADNESS (r = 0.12-0.27), as well as with attachment anxiety (r = 0.22, all p < 0.01). Path analyses revealed direct effects between eating behavior pathology with LUST (β = -0.07 to -0.15) and FEAR (β = 0.12-0.19; all p < 0.05). The association of SADNESS and Weight (β = 0.05) and Shape Concern (β = 0.06, p < 0.001) was fully mediated by attachment anxiety. Overall, the path model explained 17% of the variance for attachment anxiety and 6% of the Restraint, 13% for Eating, 10% for Weight and 14% for Shape Concern Subscales.

Discussion

The findings shed light on the multifactorial relationship between affective traits, attachment security, and eating disorder pathology. In line with previous research, the results emphasize the role of attachment and affective functioning in ED symptoms.

Gut microbiota and inflammatory factor characteristics in major depressive disorder patients with anorexia

BACKGROUND

This study aimed to explore the gut microbiota and inflammatory factor characteristics in major depressive disorder (MDD) patients with anorexia and to analyze the correlation between gut microbiota and inflammatory factors, anorexia, and HAMD scores.

METHODS

46 MDD patients and 46 healthy controls (HC) were included in the study. The 46 MDD patients were divided into two groups according to whether they had anorexia:20 MDD without anorexia (MDA0 group) and 26 MDD with anorexia (MDA1 group). We used the Hamilton Depression Scale-24 (HAMD-24) to evaluate the depression status of all participants and 16 S ribosomal RNA (16 S rRNA)sequencing to evaluate the composition of the gut microbiota. Inflammatory factors in peripheral blood such as C-reactive protein (CRP) were detected using enzyme-linked immunosorbent assay (ELISA). Spearman's correlation analysis was used to evaluate the correlation between gut microbiota and inflammatory factors, HAMD scores, and anorexia.

RESULTS

1). CRP was significantly higher in the MDA0, MDA1, than HC. 2). An analysis of α-diversity shows: the Simpson and Pielou indices of the HC group are higher than the MDA1 group (P < 0.05). 3). The β-diversity analysis shows differences in the composition of microbial communities between the MDA0, MDA1, and HC group. 4). A correlation analysis showed that Blautia positively correlated with anorexia, HAMD scores, and CRP level, whereas Faecalibacterium, Bacteroides, Roseburia, and Parabacteroides negatively correlated with anorexia, HAMD scores, and CRP level. 5). The receiver operating characteristic (ROC) curve was drawn using the differential bacterial genera between MDD patients with or without anorexia as biomarkers to identify whether MDD patients were accompanied with anorexia, and its area under curve (AUC) was 0.85. The ROC curve was drawn using the differential bacterial genera between MDD patients with anorexia and healthy controls as biomarkers to diagnose MDD patients with anorexia, with its AUC was 0.97.

CONCLUSION

This study suggested that MDD patients with anorexia had a distinct gut microbiota compared to healthy individuals, with higher level of CRP. Blautia was more abundant in MDD patients with anorexia and positively correlated with CRP, HAMD scores, and anorexia. The gut microbiota might have influenced MDD and anorexia through the inflammatory factor CRP.