Childhood eating disorders: British national surveillance study

The Royal College of Psychiatrists Child and Adolescent Psychiatry Surveillance System for rare events and disorders: highlighting the need for an international network for surveillance

Commonly occurring mental health disorders have been well studied in terms of epidemiology, presentation, risk factors and management. However, rare or uncommon mental health disorders and events are harder to study. One way to do this is active surveillance. This article summarises how the Royal College of Psychiatrists Child and Adolescent Psychiatry Surveillance System was developed, as well as the key studies that have used the system and their impact, to make the case for a wider international surveillance unit for child and adolescent psychiatry. Keeping this surveillance active in different populations across the globe will add to existing knowledge and understanding of these uncommon disorders and events. This will in turn help in developing better frameworks for the identification and management for these disorders and events. It will also facilitate the sharing of ideas regarding current methodology, ethics, the most appropriate means of evaluating units and their potential applications.

Hypothalamic-pituitary-adrenal axis in anorexia nervosa; an underestimated endocrine dysfunction among adolescents

In patients affected by anorexia nervosa (AN) different endocrine abnormalities have been described, but, among them, hypothalamic-pituitary-adrenal (HPA) dysfunction, although associated to important side effects, is underestimated and has no therapeutical options. We present a narrative literature review to investigate the HPA axis in patients with AN, in order to highlight HPA dysfunction and its effects. We also described the crucial role of HPA monitoring, and to consider eventual therapeutic and preventive strategies in AN patients. The literature now available demonstrates that women and girls suffering from AN have higher measures of cortisol and lower levels of androgens as compared to controls. These endocrinological disturbances have deleterious effects on the subjects, both from the physical and from the psychological point of view. It's fundamental for physicians to consider these aspects when assessing AN patients. The mechanisms behind the adrenocortical dysfunctions in eating disorders patients remain an open question and there are no available treatments, thus research on this issue would be extremely useful and highly necessary, especially in the pediatric field.

Incidence of avoidant/restrictive food intake disorder in children and adolescents across the UK and Ireland: a BPSU and CAPSS surveillance study

OBJECTIVE

We aimed to estimate the incidence of avoidant/restrictive food intake disorder (ARFID) in children and adolescents (CA) presenting to secondary care in the UK and Republic of Ireland (ROI).

DESIGN

This observational surveillance study used the British Paediatric Surveillance Unit and the Child and Adolescent Psychiatry Surveillance System. Monthly electronic reports were submitted by consultant paediatricians and child and adolescent psychiatrists from 1 March 2021 to 31 March 2022, with outcomes assessed at a 1-year follow-up.

SETTING

The UK and ROI.

PARTICIPANTS

Clinician-reported data on children and young people aged 5-17 (inclusive) in contact with paediatric services or CA mental health services for a new diagnosis of ARFID.

PRIMARY OUTCOME MEASURES

Annual incidence rates (IRs) estimated as confirmed new cases per 100 000 population at risk.

RESULTS

319 newly diagnosed cases of ARFID were reported over the 13-month surveillance period and assessed as eligible for inclusion. The mean age of the sample was 11.2 years (SD=3.8). The sample consisted of 145 females (45.5%). Most cases were of white British ethnicity (71.2%). The observed IR (IR0) in the UK was 2.79 per 100 000 CA (95% CI 2.48 to 3.13), with a higher IRo in males (2.98 per 100 000 CA (95% CI 2.55 to 3.49)) than in females (2.58 per 100 000 CA (95% CI 2.18 to 3.07)). Comorbidity was common in this sample with anxiety and autism spectrum disorder. At follow-up, 54.8% of cases had improved according to clinicians' clinical impression.

CONCLUSIONS

We conducted the first study reporting estimates of incidence of ARFID in CA in the UK and ROI presenting to secondary care. Our finding that ARFID is a disorder of relatively low incidence in CA should help inform service planning and resource allocation, as well as the development of evidence-based interventions.

Early-onset anorexia nervosa: a scoping review and management guidelines

BACKGROUND

Anorexia nervosa (AN) is a serious multifactorial eating disorder characterized by insufficient nutritional intake to maintain a minimum normal weight for one's age and height, a fear of gaining weight and a distorted body image. It affects mainly adolescents, but a decreased age at diagnosis has been reported, leading to the definition of a rare form of AN called early-onset or prepubertal anorexia nervosa (EOAN; ORPHA 525738), with reported epidemiological and clinical specificity. Current knowledge and specific treatments for this particular condition remain scarce. We aim to summarize the literature review and synthesize actual knowledge on EOAN for preliminary guidelines to harmonize the diagnosis, treatment and follow-up.

METHODS

A scoping literature review was performed from 2010-2021 using PubMed, Web of Science, PsycInfo and Cochrane via the following search terms: (anorexia nervosa) AND (early-onset OR premenarchal OR prepubertal OR childhood). International guidelines were screened for additional hits. Data extraction was limited to findings relevant to the key topic questions: epidemiology and clinical specificities section, diagnosis and initial evaluation section, treatment section, and follow-up and prognosis section.

RESULTS

A total of 1257 titles were retrieved via the initial search strategy. Finally, 42 records were included in the present article (30 articles and 11 international guidelines and 1 literature review). We identified 15 articles relevant for the epidemiology and clinical specificities section, 11 for the diagnosis and initial evaluation section, 3 for the treatment section, and 1 for the follow-up and prognosis section. Despite the growing literature on the epidemiological and clinical features of EOAN, knowledge of specific treatments and prognoses remains scarce in the absence of extensive standardized data collection and few age-specific clinical research protocols. Current international guidelines generally extrapolate strategies proposed for adolescents and young adults to children with a low level of evidence.

CONCLUSIONS

Continuing research efforts in this specific younger population is needed to validate child-specific care strategies, enabling the establishment of age-appropriate recommendations with a higher level of evidence targeting specific determinants and clinical specificities of EOAN.

Neuroimaging Insights into Brain Mechanisms of Early-onset Restrictive Eating Disorders

Background

Early-onset restrictive eating disorders (rEO-ED) encompass a heterogeneous group of conditions, including early-onset anorexia nervosa (EO-AN) and avoidant restrictive food intake disorders (ARFID). Almost nothing is known about the consequences of rEO-ED on brain development.

Methods

We performed the largest comparison of MRI-derived brain features in children and early adolescents (<13 years) with EO-AN (n=124), ARFID (n=50), and typically developing individuals (TD, n=112).

Results

Despite similar body mass index (BMI) distributions, EO-AN and ARFID showed divergent structural patterns, suggesting independent brain mechanisms. Half the regional brain measures were correlated with BMI in EO-AN and none in ARFID, indicating a partial mediation of EO-AN signal by BMI. EO-AN was associated with a widespread pattern of thinner cortex, while underweight ARFID patients exhibited smaller surface area and subcortical volumes than TD.

Conclusion

Future studies will be required to partition the contribution of low BMI vs. ED mechanisms in neurodevelopmental disorders.

A guide to the community management of paediatric eating disorders

Eating disorders (EDs) are a group of serious, potentially life-threatening illnesses that typically have their onset during adolescence and can be associated with severe medical and psychosocial complications. The impact of EDs on caregivers and other family members can also be significant. Health care providers (HCPs) play an important role in the screening and management of adolescents and young adults with EDs. This position statement assists community-based HCPs with recognizing, diagnosing, and treating EDs in the paediatric population. Screening modalities, indications for hospitalization, medical complications, and monitoring of young people with EDs are summarized. Current evidence supports the use of family-based treatment (FBT) as the first-line psychological therapeutic modality for adolescents with restrictive EDs. While the provision of FBT may be beyond the scope of practice for some community physicians, this statement reviews its core tenets. When an ED is diagnosed, early application of these principles in the community setting by HCPs may slow disease progression and provide guidance to families.

Un guide pour la prise en charge communautaire des troubles des conduites alimentaires en pédiatrie

Les troubles des conduites alimentaires (TCA) désignent un groupe de maladies graves au potentiel mortel qui se déclarent généralement pendant l'adolescence et peuvent être associés à de graves complications médicales et psychosociales. Ils peuvent avoir d'importantes répercussions sur les proches et les autres membres de la famille. Les professionnels de la santé jouent un rôle important pour les dépister et les prendre en charge chez les adolescents et les jeunes adultes. Le présent document de principes aide les professionnels de la santé en milieu communautaire à dépister, diagnostiquer et traiter les TCA dans la population pédiatrique. Les modalités de dépistage, les indications d'hospitalisation, les complications médicales et la surveillance des jeunes ayant un TCA sont résumées. Les données probantes à jour appuient le recours au traitement familial comme modalité thérapeutique psychologique de première ligne auprès des adolescents ayant un TCA restrictif. Les traitements familiaux dépassent peut-être la portée de pratique de certains médecins en milieu communautaire, mais le présent document de principes en examine les éléments fondamentaux. Au diagnostic d'un TCA, les professionnels de la santé qui mettent rapidement ces éléments à exécution en milieu communautaire peuvent ralentir l'évolution de la maladie et donner des conseils aux familles.

Analysis of feeding and eating disorders in 191 children according to psychiatric or gastroenterological recruitment: The PEDIAFED cohort study

OBJECTIVE

The DSM-5 classification introduced new Feeding and Eating Disorders (FED) diagnostic categories, notably Avoidant and Restrictive Food Intake Disorder (ARFID), which, like other FED, can present psychiatric and gastrointestinal symptoms. However, paediatric clinical research that focuses on children below the age of 12 years remains scarce. The aim of this study was first to investigate the clinical features of FED in a cohort of children, second to compare them according to their recruitment (gastroenterology or psychiatry unit).

METHOD

This non-interventional retrospective cohort study analysed 191 patients in a French paediatric tertiary care centre (gastroenterology n = 100, psychiatry n = 91). The main outcome variables were clinical data (type of FED, BMI, nutritional support, chronic diseases, psychiatric comorbidities, sensory, sleep, language disorders, gastrointestinal complaints, adverse life events, family history). The outcome was defined by a Clinical Global Impression of Change-score.

RESULTS

FED diagnoses were ARFID (n = 100), Unspecified FED (UFED, n = 57), anorexia nervosa (AN, n = 33) and one pica/rumination. Mean follow-up was 3.28 years (SD 1.91). ARFID was associated with selective and sensory disorders (p < 0.001); they had more anxiety disorders than patients with UFED (p < 0.001). Patients with UFED had more chewing difficulties, language disorder (p < 0.001), and more FED related to chronic disease (p < 0.05) than patients with ARFID and AN. Patients with AN were female, underweight, referred exclusively to the psychiatrist, and had more depression than patients with ARFID and UFED (p < 0.001). The gastroenterology cohort included more UFED, while the psychiatry cohort included more psychiatric comorbidities (p < 0.001). A worse clinical outcome was associated with ARFID, a younger age at onset (p < 0.001), selective/sensory disorders and nutritional support (p < 0.05).

CONCLUSION

ARFID and UFED children were diagnosed either by gastroenterologists or psychiatrists. Due to frequently associated somatic and psychiatric comorbidities, children with FED should benefit from a multidisciplinary assessment and care.

Nutritional Assessment of Children and Adolescents with Atypical Anorexia Nervosa: A Preliminary Longitudinal Investigation Using the 24-h Dietary Recall

BACKGROUND

Atypical Anorexia Nervosa (AAN) is a Feeding and Eating Disorder characterized by fear of gaining weight and body image disturbance, in the absence of significantly low body weight. AAN may present specific clinical and psychopathological features. Nonetheless, the literature lacks data concerning the nutritional characteristics and body composition of children and adolescents with AAN and their variation over time.

METHODS

Case series, including 17 children and adolescents with AAN. All the patients were assessed at the first evaluation (T0) with a standardized dietary assessment (24 h Dietary Recall, 24 hDR). Nutritional data were compared with European dietary reference values (DRVs). Body composition parameters (weight, fat mass, fat-free mass) and their changes over time at two (T1) and six (T2) months were collected as well, using a Bioelectrical impedance analysis (Wunder WBA300 with four poles and foot contact; impedance frequency 50 kHz 500 μA; impedance measurement range 200~1000 Ω/0.1 Ω).

RESULTS

The included individuals presented eating behaviors oriented towards significantly low daily energy intake (p < 0.001) compared with DRVs set by the European Food Safety Authority (EFSA) (with low carbohydrates and fats), and increased proteins (p < 0.001). A longer latency before observation (illness duration before observation) correlated with a negative change in weight. Body composition parameters were described, with no significant changes across the six-month outpatient assessment.

DISCUSSION

This is the first research to systematically assess the body composition and nutritional features of a group of individuals with AAN in the developmental age. Further research should assess the effect of targeted treatment interventions on body composition and nutritional features.

Associations between disordered eating, internalizing symptoms, and behavioral and neural correlates of response inhibition in preadolescence

Response inhibition difficulties are reported in individuals with eating disorders (EDs), anxiety, and depression. Although ED symptoms and internalizing symptoms co-occur in preadolescence, there is limited research examining associations between these symptoms and response inhibition in this age group. This study is the first to investigate the associations between behavioral and neural markers of response inhibition, disordered eating (DE), and internalizing symptoms in a community sample of preadolescents. Forty-eight children (M age = 10.95 years, 56.3% male) completed a Go/NoGo task, whereas electroencephalography was recorded. Self-report measures of DE and internalizing symptoms were collected. Higher levels of anxiety and depression were associated with neural markers of suboptimal response inhibition (attenuated P3NoGo amplitudes) in preadolescence. In contrast, higher levels of depression were associated with greater response inhibition at a behavioral level. These findings suggest internalizing symptoms in preadolescence are associated with P3-indexed difficulties in evaluation and monitoring, but these are not sufficient to disrupt behavioral performance on a response inhibition task. This pattern may reflect engagement of compensatory processes to support task performance. DE was not significantly associated with response inhibition, suggesting that difficulties in response inhibition may only be reliably observed in more chronic and severe DE and ED presentations.

The impact of genetic risk for schizophrenia on eating disorder clinical presentations

A growing body of literature recognizes associations between eating disorders (EDs) and schizophrenia and suggests that familial liability to schizophrenia in individuals with anorexia nervosa (AN) reveals distinct patterns of clinical outcomes. To further investigate the influence of schizophrenia genetic liability among individuals with EDs, we evaluated the associations between schizophrenia polygenic risk scores (PRS) and clinical presentations of individuals with EDs including their overall health condition and ED-related symptoms. Using data from two previous studies of the genetics of EDs comprising 3,573 Anorexia Nervosa Genetics Initiative (ANGI) cases and 696 Binge Eating Genetics Initiative (BEGIN) cases born after 1973 and linked to the Swedish National Patient Register, we examined the association of schizophrenia PRS on ED clinical features, psychiatric comorbidities, and somatic and mental health burden. Among ANGI cases, higher schizophrenia PRS was statistically significantly associated with higher risk of major depressive disorder (MDD) measured by hazard ratio (HR) with 95% confidence interval (CI) (HR [95% CI]: 1.07 [1.02, 1.13]) and substance abuse disorder (SUD) (HR [95% CI]: 1.14 [1.03, 1.25]) after applying multiple testing correction. Additionally, higher schizophrenia PRS was associated with decreased clinical impairment assessment scores (-0.56, 95% CI: [-1.04, -0.08]) at the conventional significance level (p < 0.05). Further, in BEGIN cases, higher schizophrenia PRS was statistically significantly associated with earlier age at first ED symptom (-0.35 year, 95% CI: [-0.64, -0.06]), higher ED symptom scores (0.16, 95% CI: [0.04, 0.29]), higher risk of MDD (HR [95% CI]: 1.18 [1.04, 1.34]) and SUD (HR [95% CI]: 1.36 [1.07, 1.73]). Similar, but attenuated, patterns held in the subgroup of exclusively AN vs other eating disorder (OED) cases. These results suggest a similar pattern of influence of schizophrenia PRS for AN and OED cases in terms of psychiatric comorbidities, but a different pattern in terms of ED-related clinical features. The disparity of the effect of schizophrenia PRS on AN vs OED merits further investigation.

Hypercapnia in hospitalized children and adolescents with anorexia nervosa as a predictive marker for readmission: a prospective study

PURPOSE

To determine whether hypercapnia is associated with risk of hospital readmission related to anorexia nervosa (AN) in children and adolescents.

METHODS

We performed a prospective study of patients ≤ 18 years old admitted due to AN decompensation from November 2018 to October 2019. Both subtypes of AN, restricting subtype (AN-R) and binge-eating/purging subtype (AN-BP), were included. Study participants were evaluated upon admission, at discharge and six months after discharge. T-tests or Mann-Whitney U tests was used to compare means values. Pearson or Spearman correlations were used to measure the association between two variables. Logistic regression models were developed to evaluate the relationship between scoring methods and readmission.

RESULTS

Of the 154 persons admitted during the study period, 131 met the inclusion criteria. Median age was 15.1 years. At admission, 71% of participants were malnourished and 33 (25%) had been previously admitted. We observed a marked decrease in venous pH and stable pCO2 elevation during follow-up period. Hypercapnia at discharge was associated with a twofold increased likelihood of readmission and the odds of readmission increased as discharge pCO2 rose. These findings did not depend on AN subtype or participant sex. Electrolytes persisted within the normal range.

CONCLUSION

Hypercapnia and respiratory acidosis are common alterations in children and adolescents hospitalized due to AN decompensation. Hypercapnia persists for at least 6 months after discharge despite clinical improvement and is associated with higher odds of readmission. This is the first study to identify an abnormal laboratory finding as a potential predictor of readmission in AN.

LEVEL OF EVIDENCE

IV: Multiple time series without intervention.

Early onset anorexia nervosa: Multidisciplinary hospital intervention in a 1-year follow-up study

BACKGROUND

Early onset anorexia nervosa (EOAN) is a subclassification of AN, defined by an onset before 14 years, and characterized by specific demographic, neuropsychological, and clinical features. The present study aims to provide naturalistic data on a wide sample with EOAN, focusing on psychopathological and nutritional changes occurring in the context of a multidisciplinary hospital intervention, as well as the rate of rehospitalizations during a 1-year follow-up.

METHOD

Observational, naturalistic study adopting standardized criteria for EOAN (onset before 14 years). EOAN were compared to adolescent-onset AN (AOAN) patients (onset after 14 years) by demographic, clinical, psycho and treatment variables. Psychopathology was assessed at admission (T0) and discharge (T1) with self-administered psychiatric scales for children and adolescents (SAFA) subtests for Eating Disorders, Anxiety, Depression, Somatic symptoms, and Obsessions. Then, potential differences of T0-T1 changes in psychopathological and nutritional variables were assessed. Finally, rates of re-hospitalizations at 1-year post-discharge follow-up were assessed with Kaplan-Meier analyses.

RESULTS

Two-hundred thirty-eight AN individuals (EOAN = 85) were enrolled. When compared to AOAN, EOAN participants were more frequently males (X2 = 5.360, p = .021), more frequently received nasogastric-tube feeding (X2 = 10.313, p = .001), and risperidone (X2 = 19.463, p < .001), obtained a greater T0-T1 improvement in body-mass index percentage (F[1.229] = 15.104, p < .001, η2 = 0.030), with higher 1-year freedom from re-hospitalization (hazard ratio, 0.47; Log-rank: X2 = 4.758, p = .029).

CONCLUSION

In this study, describing the broadest EOAN sample available in literature so far, EOAN patients received specific interventions and obtained better outcomes at discharge and follow-up when compared to AOAN. Longitudinal, matched studies are required.

Thyroid dysfunction in children and adolescents affected by undernourished and overnourished eating disorders

Eating disorders (ED) are one of the most prevalent chronic disorders in adolescents and young adults, with a significantly increasing prevalence in younger children, particularly in girls. Even if obesity in essence is not framed as an eating disorder and has always been considered a separate pathology, ED and obesity could be considered part of a continuum. It has become evident that one condition can lead to another, such as binge eating disorder (BED) and bulimia nervosa, and that they share the same repercussions in terms of psychosocial, metabolic, and nutritional health. This narrative review aims to investigate the hypothalamic-pituitary-thyroid axis in undernourished and overnourished patients with ED, including obesity, in order to highlight the relationship between weight control and thyroid function and its effects and to consider therapeutic and preventive strategies in children and adolescents. Literature data report that thyroid alterations occur in patients with ED, both underweight and overweight, and represent a continuum of changes depending on the severity and time course of the disease involving the endocrine system. Considering the relevant role thyroid hormones (TH) play not only in energy expenditure (EE) but also in metabolic control and cardiovascular risks related to dysmetabolism and mood regulation, continuous monitoring of thyroid homeostasis in patients with ED is mandatory to prevent severe complications and to start early treatment when necessary.

Eating Disorders and Diabetes: Facing the Dual Challenge

Eating disorders and diabetes mellitus are distinct yet closely linked health conditions, presenting distinct challenges in terms of care and management. Eating disorders encompass a spectrum of mental health disorders characterized by abnormal eating behaviors and disruptions in weight regulation. Research indicates that individuals with diabetes might be at an elevated risk of developing eating disorders. The necessity to adhere to specific dietary guidelines, monitor blood sugar levels vigilantly, and manage drug administration can collectively contribute to the emergence of detrimental attitudes toward food and body image. On the other hand, incorrect eating behaviors such as binge eating and purging can disrupt blood sugar control, significantly impacting the development and management of diabetes. This intricate relationship emphasizes the crucial necessity for a comprehensive understanding and specialized care to effectively address the dual challenges faced by individuals dealing with both diabetes and eating disorders. This paper represents the inaugural comprehensive review delving into the intricate connection between eating disorders and diabetes, thereby illuminating previously under-researched areas. The insights gleaned from this review may contribute to developing integrated interventions that aim to improve the overall well-being and quality of life for individuals grappling with the complexities of eating disorders and diabetes.

Clinician confidence and practices for evaluating bone health in male and female adolescents and young adults with an eating disorder

Extensive literature exists on bone health in females with an eating disorder, yet few have studied males. Our study assessed clinician confidence and current practices for assessing bone health in patients with an eating disorder. We also aimed to identify any differences in practice based on patient sex. Our 31-item survey, distributed to adolescent clinicians in the United States via the Society for Adolescent Health and Medicine (SAHM) listserv, assessed clinician confidence and practices for assessing bone mineral density in both male and female adolescents with an eating disorder. Findings showed that clinicians (n = 104) were less confident in assessing bone mineral density in males compared to females (p < .001), yet there was no significant difference in rates of obtaining a DXA (p = .390). Although clinicians are less confident assessing bone health in males with an eating disorder than females, this does not appear to result in screening differences.

Premenarchal anorexia nervosa: clinical features, psychopharmacological interventions, and rehospitalization analysis in a 1-year follow-up, controlled study

Premenarchal anorexia nervosa (AN) represents a specific subtype of AN, defined by an onset before the menarche in females, involving unique endocrine and prognostic features. The scarce data on this condition lack case-control and follow-up studies. This is a case-control, observational, naturalistic study, involving participants with premenarchal AN (premenarchal girls presenting to the study center newly diagnosed with AN) treated with a multidisciplinary hospital intervention, compared to postmenarchal AN individuals on clinical, endocrine, psychopathological, and treatment variables. The rate of rehospitalizations on a 1-year follow-up after discharge and respective prognostic factors were assessed with a Kaplan-Meier analysis and Cox regression model. The sample included 234 AN participants (43, 18.4% with premenarchal and 191, 81.6% with postmenarchal AN). When compared to postmenarchal, premenarchal AN individuals presented with lower depressive scores (Self-Administered Psychiatric Scales for Children and Adolescents (SAFA)) (U = 1387.0, p = 0.010) and lower luteinizing hormone (LH) levels (U = 3056.0, p = 0.009) and were less frequently treated with antidepressants (X² = 5.927, p = 0.015). A significant predictive model of the risk of rehospitalization (X² = 19.192, p = 0.004) identified a higher age at admission (B = 0.522, p = 0.020) and a day-hospital (vs inpatient) treatment (B = 3957, p = 0.007) as predictive factors for rehospitalization at 1-year, independent from the menarchal status.   Conclusion: This study reports the clinical and treatment characteristics of premenarchal AN in one of the largest samples available in the current literature. Specific clinical features and prognostic factors for rehospitalization at 1-year follow-up were identified. Future studies should longitudinally investigate treatment-dependent modifications in endocrine and psychopathological measures in this population. What is Known: • Premenarchal Anorexia Nervosa (AN) is a subtype of AN characterized by its onset before menarche in females and is associated with unique endocrine and prognostic features. What is New: • Individuals with premenarchal AN may display specific clinical profiles, with lower depressive symptoms and luteinizing hormone levels than postmenarchal controls.

Eating disorders and the role of the dental team

Although primarily classified as psychiatric disorders, eating disorders have a complex aetiology and presentation, with comorbidities spanning multiple disciplines, including dental complications. In some cases, general dental practitioners may be the first health professional to become aware that someone is struggling with an eating disorder. The dental team is in an ideal position to sensitively explore the presentation and signpost the patient to appropriate services while offering support and/or remedial management for dental complications of the eating disorder. Anyone from any background, gender or ethnicity may develop an eating disorder, of which the main diagnoses are anorexia nervosa, bulimia nervosa and binge eating disorder. Some of the frequently seen oral manifestations of these disorders include generalised dental erosion, caries, self-inflicted palatal or oropharyngeal trauma, atrophic mucosa, bilateral parotid gland enlargement, xerostomia and periodontal disease. The dentist's role is pivotal in recognising the possible implications of some of these findings, approaching the patient sensitively, and communicating empathetically to engage them in treatment, reducing the risk of further erosion and improving oral health and hygiene. The dental team may be able to signpost the patient to their general practitioner for onward referral or to a local eating disorder support network.

Epidemiology of eating disorders: population, prevalence, disease burden and quality of life informing public policy in Australia-a rapid review

BACKGROUND

Understanding of the epidemiology and health burden of eating disorders has progressed significantly in the last 2 decades. It was considered one of seven key areas to inform the Australian Government commissioned National Eating Disorder Research and Translation Strategy 2021-2031, as emerging research had highlighted a rise in eating disorder prevalence and worsening burden-of-illness. The aim of this review was to better understand the global epidemiology and impact of eating disorders to inform policy decision-making.

METHODS

Using a systematic Rapid Review methodology, ScienceDirect, PubMed and Medline (Ovid) were searched for peer-reviewed studies published between 2009 and 2021. Clear inclusion criteria were developed in consultation with experts in the field. Purposive sampling of literature was conducted, which predominately focused on higher-level evidence (meta-analyses, systematic reviews, and large epidemiological studies), synthesised, and narratively analysed.

RESULTS

135 studies were deemed eligible for inclusion in this review (N = 1324). Prevalence estimates varied. Global Lifetime prevalence of any eating disorder ranged from 0.74 to 2.2% in males, and 2.58-8.4% in females. Australian 3-month point-prevalence of broadly defined disorders was around 16% in females. Eating disorders appeared more prevalent in young people and adolescents, particularly females (in Australia: eating disorders ~ 22.2%; disordered eating ~ 25.7%). Limited evidence was found on sex, sexuality and gender diverse (LGBTQI +) individuals, particularly males, who had a six-fold increase in prevalence compared to the general male population, with increased illness impact. Similarly, limited evidence on First Australian's (Aboriginal and Torres Strait Islander) suggests prevalence rates similar to non-Indigenous Australians. No prevalence studies were identified specifically assessing culturally and linguistically diverse populations. Global disease burden of any eating disorder was 43.4 age-standardised disability-adjusted-life-years per 100,000; increasing by 9.4% between 2007 and 2017. Australian's total economic cost was estimated at $84 billion from years-of-life lost due to disability and death, and annual lost earnings ~ $1.646 billion."

CONCLUSIONS

There is no doubt that eating disorder prevalence and impact are on the rise, particularly in at-risk and understudied populations. Much of the evidence came from female-only samples, and Western, high-income countries which more readily have access to specialised services. Future research should examine more representative samples. There is an urgent need for more refined epidemiological methods to better understand these complex illnesses over time, to guide health policy and development-of-care.

Ethical tensions in the treatment of youth with severe anorexia nervosa

Treatment of anorexia nervosa poses a moral quandary for clinicians, particularly in paediatrics. The challenges of appropriately individualising treatment while balancing prospective benefits against concomitant harms are best highlighted through exploration and discussion of the ethical issues. The purpose of this Viewpoint is to explore the ethical tensions in treating young patients (around ages 10-18 years) with severe anorexia nervosa who are not capable of making treatment-based decisions and describe how harm reduction can reasonably be applied. We propose the term AN-PLUS to refer to the subset of patients with a particularly concerning clinical presentation-poor quality of life, lack of treatment response, medically severe and unstable, and severe symptomatology-who might benefit from a harm reduction approach. From ethics literature, qualitative studies, and our clinical experience, we identify three core ethical themes in making treatment decisions for young people with AN-PLUS: capacity and autonomy, best interests, and person-centred care. Finally, we consider how a harm reduction approach can provide direction for developing a personalised treatment plan that retains a focus on best interests while attempting to mitigate the harms of involuntary treatment. We conclude with recommendations to operationalise a harm reduction approach in young people with AN-PLUS.

Early-onset eating disorders in Australian children: A national surveillance study showing increased incidence

OBJECTIVE

The aim of this study was to collect prospective national data on early-onset eating disorders (EOEDs) in children in Australia to document changes in clinical presentations, medical complications, management, and incidence since initially described in 2002-2005.

METHOD

Each month pediatricians reported children aged 5-13 years newly diagnosed with an eating disorder to the Australian Paediatric Surveillance Unit and provided de-identified clinical data.

RESULTS

Between 2016 and 2018, 184 children were confirmed with EOED with a minimum estimated national incidence of 2.79 per 100,000 children aged 5-13 years (95% confidence interval [CI] 2.40-3.23), nearly double the previously recorded incidence. The mean age at diagnosis was 12.2 years; 43(24%) were boys who were younger than girls (11.85 vs. 12.33 years; p = .03). All had food avoidance. Common symptoms included fear of weight gain 140 (76%), preoccupation with body weight 134 (73%), and misperception of body size 116 (63%). Bradycardia was present in 83 (45%) and 117 (64%) who required hospital admission. The Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition, Text Revision (DSM-5) criteria for anorexia nervosa were met for 144 (78%).

DISCUSSION

Children with eating disorders continue to present with severe illness. Near doubling in incidence in just over a 10-year period highlights the need for increased clinical resourcing and comparable international data.

PUBLIC SIGNIFICANCE

The incidence of new presentations of eating disorders in children aged 5-13 years has nearly doubled since a similar study was conducted over 10 years ago. Children were unwell for an average of 8 months before diagnosis; approximately 80% had a clear diagnosis of anorexia nervosa and 64% needed hospital admission due to medical complications. This highlights the need for improvements in education and clinical resources for this age group.

The youngest are hit hardest: The influence of the COVID-19 pandemic on the hospitalization rate for children, adolescents, and young adults with anorexia nervosa in a large German representative sample

BACKGROUND

The COVID-19 pandemic has severely impacted the mental health of children and adolescents. Young people at risk for anorexia nervosa (AN) have been especially shown to be affected. There are no studies that have investigated the respective proportions of hospitalized children, adolescents, and young adults separately as well as of both sexes during the COVID-19 crisis.

METHODS

This study is based on the administrative data of the largest German statutory health insurance. All children (0-14 years) and adolescents (15-19 years) with a discharge diagnosis of typical and atypical AN according to the International Classification of Diseases (ICD)-10 were included. Admission rates per 10,000 person-years were calculated separately by sex and age group, based on admission numbers from the 9-month interval from January to September of 2019, 2020, and 2021 and the number of insured persons per sex and age group of each year.

RESULTS

The entire sample comprised approximately 4.7 million children and adolescents. There was a highly significant increase of 40% (relative risk (RR): 1.4; [1.27, 1.55]; p < 0.0001) in admission rates in the female children's and the adolescents' group (RR:1.32; [1.24, 1.41]; p< 0.0001) between the pre-COVID-19 and peri-COVID-19 periods in 2019 and 2021, respectively. Among males, hospitalization rates significantly increased in the children (RR: 1.69; [1.09, 2.62]; p < 0.02).

CONCLUSIONS

Young people appear to be especially prone to develop AN during a crisis, such as with social isolation and school closures. Home-based or mobile pediatric services should be established to prevent this often chronic and disabling disorder in young patients.

Pathway-specific GABAergic inhibition contributes to the gain of resilience against anorexia-like behavior of adolescent female mice

Anorexia nervosa is one of the most debilitating mental illnesses that emerges during adolescence, especially among females. Anorexia nervosa is characterized by severe voluntary food restriction and compulsive exercising, which combine to cause extreme body weight loss. We use activity-based anorexia (ABA), an animal model, to investigate the neurobiological bases of vulnerability to anorexia nervosa. This is a Mini-Review, focused on new ideas that have emerged based on recent findings from the Aoki Lab. Our findings point to the cellular and molecular underpinnings of three ABA phenomena: (1) age-dependence of ABA vulnerability; (2) individual differences in the persistence of ABA vulnerability during adolescence; (3) GABAergic synaptic plasticity in the hippocampus and the prefrontal cortex that contributes to the suppression of the maladaptive anorexia-like behaviors. We also include new data on the contribution to ABA vulnerability by cell type-specific knockdown of a GABA receptor subunit, α4, in dorsal hippocampus. Although the GABA system recurs as a key player in the gain of ABA resilience, the data predict why targeting the GABA system, singularly, may have only limited efficacy in treating anorexia nervosa. This is because boosting the GABAergic system may suppress the maladaptive behavior of over-exercising but could also suppress food consumption. We hypothesize that a sub-anesthetic dose of ketamine may be the magic bullet, since a single injection of this drug to mid-adolescent female mice undergoing ABA induction enhances food consumption and reduces wheel running, thereby reducing body weight loss through plasticity at excitatory synaptic inputs to both excitatory and inhibitory neurons. The same treatment is not as efficacious during late adolescence but multiple dosing of ketamine can suppress ABA vulnerability partially. This caveat underscores the importance of conducting behavioral, synaptic and molecular analyses across multiple time points spanning the developmental stage of adolescence and into adulthood. Since this is a Mini-Review, we recommend additional literature for readers seeking more comprehensive reviews on these subjects.

Implementing service transformation for children and adolescents with eating disorders across England: the theory, politics, and pragmatics of large-scale service reform

BACKGROUND

Eating disorders are among the most serious mental health problems affecting children and young people and without appropriate treatment often have a protracted course with high levels of morbidity and mortality. While considerable progress has been made in recent years in developing effective evidence-based outpatient treatments, these are not always readily available. In England, until recently, the usual care pathway for young people with an eating disorder was referral from primary care to local generic Child and Adolescent Mental Health Services with varying levels of expertise in eating disorders and a mix of outpatient treatments available. Poor treatment progress or physical deterioration would usually result in inpatient admission. Admission rates were high, with children and young people with an eating disorder accounting for nearly a quarter of all child and adolescent psychiatric hospital admissions. Inpatient treatment is costly and has high relapse rates with some evidence that it may contribute to poorer long-term outcomes in eating disorders. Accumulating clinical and research evidence that early expert outpatient treatment can significantly reduce the need for inpatient care indicates,+ that investing in dedicated community-based eating disorders services is likely to be both clinically and economically beneficial.

OVERVIEW OF PAPER

This paper describes a large-scale transformation programme following a major government investment (initially £30 million/year, since then increased to over £50 million/year) aimed at service level change in the provision of eating disorder services for children and adolescents in England. We describe the history, background, political context, and clinical and research evidence that contributed to the government's decision to invest in eating disorders. We also provide a brief account of the implementation of an England-wide whole team training to support the creation of a network of over 70 dedicated community-based eating disorders services for children and young people.

Eating Disorders in Children and Adolescent Males: A Peculiar Psychopathological Profile

(1) Background: Eating Disorders (EDs) are severe psychiatric disorders with high rates of mortality, multiple medical and psychiatric comorbidities associated, and often chronic illness. Historically, EDs are among the most gendered of psychiatric illnesses, and male presentations have been perceived as rare and unusual. This perception resulted in the systematic underrepresentation of males in research on Eds, and as consequence, in a scarcity of research investigating clinical and psychological features in this population. (2) Methods: The present study aims to evaluate clinical and psychopathological features in a sample of 287 children and adolescents, 27 males and 260 females with EDs, in order to identify similarities and differences. (3) Results: Males were younger than females, with similar medical and clinical conditions, but a different distribution of typology of EDs in middle childhood and middle adolescents. The Eating Disorders Inventory-3, TAS-20 for alexithymia and CDI for depressive symptoms' profiles are similar, while males showed higher scores at the global indexes of Symptom Checklist 90-Revised test in early adolescence. (4) Conclusions: Results suggest gender-specific similarities and differences in clinical and psychological features in children and adolescent males, which may require specific diagnosis and treatment.

Body image as a multidimensional concept: A systematic review of body image facets in eating disorders and muscle dysmorphia

Body image disturbance is core to the psychopathology of eating disorders (EDs), and related disorders such as muscle dysmorphia (MD). Global measures of body image fail to quantify specific aspects of body image disturbance that characterizes EDs, and may be differentially associated to outcomes. The aim of this systematic review was to provide an overview of specific body image facets and synthesize findings from controlled studies that compared clinical ED/MD and control-comparison groups in body image disturbance. One-hundred sixty-seven studies met inclusion criteria, and reported on comparisons among 30,584 individuals in 28 body image facets, which were more broadly grouped into evaluative, perceptual, cognitive-affective and motivational categories for the purpose of the present review. Effect sizes were calculated as Cohen's d for every comparison between ED and control groups. Body dissatisfaction (evaluative category) was the most prevalent facet assessed across studies (62 %), and differences between clinical and control groups were the largest in this category, especially for bulimia nervosa (d = 1.37). Scarcity of studies with male and MD clinical samples, and use of single-item and non-validated measures, should encourage development of instruments for body image facets pertinent to EDs and MD that can be validly applied across gender.

Screening, assessment and diagnosis in the eating disorders: findings from a rapid review

BACKGROUND

Limited screening practices, minimal eating disorder training in the healthcare professions, and barriers related to help-seeking contribute to persistent low rates of eating disorder detection, significant unmet treatment need, and appreciable associated disease burden. The current review sought to broadly summarise the literature and identify gaps relating to the screening, assessment, and diagnosis of eating disorders within Western healthcare systems.

METHODS

This paper forms part of a Rapid Review series scoping the evidence base for the field of eating disorders, conducted to inform the Australian National Eating Disorders Research and Translation Strategy 2021-2031, funded and released by the Australian Government. ScienceDirect, PubMed and Ovid/Medline were searched for studies published between 2009 and mid 2021 in English. High-level evidence such as meta-analyses, large population studies and Randomised Control Trials were prioritised through purposive sampling. Data from selected studies relating to Screening, Assessment and Diagnosis of eating disorders were synthesised and are disseminated in the current review.

RESULTS

Eighty seven studies were identified, 38% relating to screening and 62% to assessment and diagnosis. The majority of screening studies were conducted in university student samples, showing high prevalence but only modest improvements in help-seeking in those studies that followed up post-screen. In healthcare settings, clinicians continue to have difficulty identifying eating disorder presentations, particularly Binge Eating Disorder, Other Specified Feeding or Eating Disorders, and sub-threshold eating disorders. This is preceded by inadequate and frequently homogenous screening mechanisms and exacerbated by considerable personal and health-system barriers, including self-stigma and lack of resourcing. While all groups are at risk of delayed or no diagnosis, those at particular risk include LGBTQ+ and gender diverse individuals, individuals living in larger bodies, and males.

CONCLUSIONS

A majority of individuals with eating disorders remain undiagnosed and untreated despite a high prevalence of these conditions and increased advocacy in recent years. Research into improving detection and clinician diagnostic skill is extremely limited. Innovative empirical research is strongly recommended to address significant individual and health-system barriers currently preventing appropriate and timely intervention for many. Limited screening in healthcare settings and low rates of eating disorder training in the healthcare professions are just some of the barriers to help-seeking which may contribute to delayed intervention and diagnosis in the eating disorders. This has significant impacts, prolonging treatment when it is finally received, and increasing healthcare costs for both the individual and the healthcare system. The current review is part of a larger Rapid Review series conducted to inform the development of Australia's National Eating Disorders Research and Translation Strategy 2021-2031. A Rapid Review is designed to comprehensively summarise a body of literature in a short timeframe, often to guide policy-making and address urgent health concerns. The Rapid Review synthesises the current evidence-base and identifies gaps in eating disorder research and care, in order to guide decision making and address urgent health concerns. This paper gives a critical overview of the scientific literature relating to the current state of screening, assessment, and diagnosis of eating disorders within Western healthcare systems that may inform health policy and research in an Australian context. It covers screening initiatives in both general and high-risk populations; personal, clinician and healthcare system challenges relating to help-seeking; and obstacles to accurate and timely clinical diagnosis across the eating disorders.

Eating disorder and social anxiety symptoms in Iranian preadolescents: a network analysis

PURPOSE

Network studies of eating disorder (ED) symptoms have identified central and bridge symptoms in Western samples, yet few network models of ED symptoms have been tested in non-Western samples, especially among preadolescents. The current study tested a network model of ED symptoms in Iranian preadolescents (ages 9 to 13), as well as a model of co-occurring social anxiety disorder (SAD) and ED symptoms.

METHOD

Preadolescent boys (n = 405) and girls (n = 325) completed the Children Eating Attitudes Test-20 and Social Anxiety Scale for Children. We estimated two network models (ED and ED/SAD networks) and identified central and bridge symptoms, as well as tested if these models differed by sex.

RESULTS

We found that discomfort eating sweets were the most central symptoms in ED networks. Concern over being judged was central in networks including both ED and SAD symptoms. Additionally, concern over being judged was the strongest bridge symptoms. Networks did not differ by sex.

CONCLUSION

Future research is needed to test if interventions focused on bridge symptoms (i.e., concern over being judged) as primary intervention points target comorbid ED-SAD pathology in preadolescents at risk for ED and SAD.

LEVEL OF EVIDENCE

Level III; Evidence obtained from well-designed observational study, including case-control design for relevant aspects of the study.

Research Review: Neuropsychological functioning in young anorexia nervosa: A meta-analysis

BACKGROUND

Cognitive inflexibility and compulsive behaviours are commonly observed in patients with anorexia nervosa (AN) and are often considered to be caused by impairments in executive functioning and visuospatial processing. Despite an increasing number of young individuals presenting with AN, there is a lack of meta-analytic evidence on the neuropsychological functioning in this population. Our primary aim was to review and synthesize the differences in neuropsychological test performance between young people with AN and healthy controls, and to explore potential moderators.

METHODS

A database search following PRISMA guidelines of MEDLINE, PsycINFO, ISI Web of Science and Epistemonikos was conducted. Hedges' g served as an effect size indicating the standardized mean differences. We utilized mixed-effects meta-regression and machine learning meta-analyses to identify relevant moderators.

RESULTS

Sixteen studies met the inclusion criteria with a total of 1333 participants (665 with AN) and 59 effect sizes. Random-effects meta-analyses demonstrated a small and insignificant difference between young individuals with AN and controls ( g¯  = -0.144, 95% CI [-0.328, 0.041]) in overall neuropsychological functioning. However, the difference was significant for the cognitive domains of memory, working memory and visuospatial abilities. Moderator and machine-learning analyses revealed a stronger negative effect in older participants and moderator effects of country and assessment quality.

CONCLUSIONS

Our findings highlight the significant impact of age on neuropsychological test performance in patients with AN. There is a need for a more widespread inclusion of potentially confounding variables in primary studies as well as instruments specifically targeted at younger populations.

Disordered eating and barriers to help-seeking: a brief report

This study explored associations between disordered eating, barriers, and attitudes towards help-seeking. A total of 198 young women completed online questionnaires assessing eating pathology, attitudes towards seeking professional psychological help, and barriers to seeking help. Higher levels of self-reported eating pathology were associated with more positive attitudes toward seeking professional help and with greater perceptions of barriers to help-seeking. An inconsistent mediation model (with suppression effect) indicated young women with higher eating pathology perceived more barriers to seeking help, which were associated with less positive attitudes towards seeking help for psychological issues; however, when barriers were held constant, eating pathology was associated with more positive attitudes towards seeking help. Results from this study highlight the need to identify and reduce barriers that impede mental health service utilization among young women with disordered eating.

Disordered eating behaviours and basic psychological need satisfaction: the mediating role of anxiety symptoms in preadolescents

Objective: According to self-determination theory, satisfied basic psychological needs can be a protective factor for psychopathology, including eating disorders and anxiety symptomatology. However, most research has focused on adolescent and adult populations, with less work examining perceived basic psychological need satisfaction from parents in younger samples who report anxiety and disordered eating. This cross-sectional study aimed to investigate whether basic psychological need satisfaction from parents was associated with disordered eating in preadolescents and whether anxiety mediated this relation.Method: A total of 211 preadolescents were recruited from primary schools across south Wales (mean age = 10.27 years, age range = 9-11 years; 49.3% female). Children completed self-report questionnaires on their basic psychological need satisfaction when with parents, as well as disordered eating and anxiety symptoms.Results: It was found that higher needs satisfaction was associated with lower disordered eating and anxiety, with stronger relations found in girls compared with boys. Furthermore, anxiety was found to mediate this relationship.Conclusions: Results suggest that basic psychological needs satisfaction may play an important role in the early emergence of co-occurring disordered eating and anxiety symptoms in boys and girls. The importance of considering anxiety symptoms in future work investigating needs satisfaction in the context of disordered eating and eating disorders is discussed.

Clinician practices assessing hypothalamic-pituitary-gonadal axis suppression in adolescents with an eating disorder

OBJECTIVE

Although extensive literature exists on hypothalamic-pituitary-gonadal (HPG) axis suppression in females with an eating disorder, there are few studies in males. Our study aimed to determine clinician practices for the assessment of HPG axis suppression and to identify differences in practice based on the sex of the patient.

METHOD

Our 31-item survey queried clinicians about confidence level and practices for assessing HPG suppression in male compared to female patients.

RESULTS

Findings showed that clinicians (n = 104) were less likely to evaluate HPG suppression in males compared to females, including assessment of sexual maturity rating (p < .050), screening of decreased libido compared to amenorrhea (p < .001) and lab assessment (luteinizing hormone and follicular-stimulating hormone: p < .001; estradiol/testosterone: p < .010; TSH: p < .050). Participants also felt less confident evaluating male patients (p < .001) and requested better screening tools for males (p < .001).

DISCUSSION

Our data suggest that clinician practices differ based on patient sex and that clinicians request tools for HPG suppression assessment in males. This is the first study examining specific practices and comfort levels of clinicians when assessing HPG axis suppression. Findings suggest that more guidance on the management of male patients may be needed to standardize care and to prevent short and long-term sequela of malnutrition.

The children's eating attitudes test: French validation of a short version

PURPOSE

Disordered eating attitudes and behaviors (DEAB) in childhood have been prospectively associated with eating disorders and obesity in adolescence. Therefore, evaluating DEAB in children with a reliable, sensitive and well-adapted scale is very important. The Children's Eating Attitudes Test (ChEAT) is one of the most popular measuring tools for DEAB in children, but no French version is available. Moreover, while completion time is an important factor to be considered when working with children, only one recent study proposed a shorter version of the ChEAT. Taking the previous works of Murphy and colleagues (2019) as a starting point, the current study aimed to provide the first French-speaking validated 14-item short version of the ChEAT.

METHODS

A sample of 1092 boys and girls aged between 8 and 12 years old were recruited in two urban areas in the province of Quebec, Canada. They completed the ChEAT, and their height and weight were measured at school. Factorial structure and internal consistency were assessed.

RESULTS

After the initial factorial analysis, two "vomiting (or purging)" items were yielded as problematic and were thus removed from the analysis. The remaining 12 items provided a good fit to the data and a good internal consistency. Moreover, the factorial structure was proved to be invariant across sexes.

CONCLUSION

This study is the first to provide a French assessment of DEAB in elementary school children. The French short version of the ChEAT provided a quick and reliable assessment for DEAB with non-clinical children population and could be used as a screening tool, even though no cut-off was established yet.

LEVEL OF EVIDENCE

Cross-sectional, descriptive study, Level V.

Eater profile and associated factors in pediatric patients of the PEDIANUT cohort

Appetite traits have multifactorial origins. In association with environmental and genetic factors, they could become problematic and lead to Feeding or Eating Disorders (FED). As the DSM-5 classification is not suitable for pediatric FED, another way to describe eating behavior is to distinguish the clinical profiles of "small eater" and "big eater". The aim of this study was to identify socio-demographic and medical factors associated with these profiles, and to compare problematic and non-problematic profiles. From the Pedianut study, we analyzed socio-demographic, medical and family history data among 401 children according to 4 age groups (<1 year n = 101, 1-6 years n = 99, 6-12 years n = 100, 12-18 years n = 101). The information collected on eating behavior made it possible to define small eater profile (SEP) and big eater profile (BEP) using predefined grids. BEP was more frequent in adolescents (35.6%), and SEP was more frequent in children aged 1-6 years (34.3%). BEP was associated with having separated parents, being male and the oldest sibling (p < 0.05). Problematic BEP was associated with eating while watching television, being a girl, and having sensory disorders (p < 0.05). SEP was associated, whatever age, with non-breastfeeding, chronic illness, psychological history, sensory disorders, language delays (in the 1-6 year age group), and family history of FED (in the adolescent group) (p < 0.05). This analysis of factors associated with eater profile opens new perspectives for research on risk factors associated with eating traits, which warrants further study in larger populations to delineate transition from healthy to problematic eating.

Suggestive Evidence for Causal Effect of Leptin Levels on Risk for Anorexia Nervosa: Results of a Mendelian Randomization Study

Genetic correlations suggest a coexisting genetic predisposition to both low leptin levels and risk for anorexia nervosa (AN). To investigate the causality and direction of these associations, we performed bidirectional two-sample Mendelian randomization (MR) analyses using data of the most recent genome-wide association study (GWAS) for AN and both a GWAS and an exome-wide-association-study (EWAS) for leptin levels. Most MR methods with genetic instruments from GWAS showed a causal effect of lower leptin levels on higher risk of AN (e.g. IVW b = -0.923, p = 1.5 × 10^-4). Because most patients with AN are female, we additionally performed analyses using leptin GWAS data of females only. Again, there was a significant effect of leptin levels on the risk of AN (e.g. IVW b = -0.826, p = 1.1 × 10^-04). MR with genetic instruments from EWAS showed no overall effect of leptin levels on the risk for AN. For the opposite direction, MR revealed no causal effect of AN on leptin levels. If our results are confirmed in extended GWAS data sets, a low endogenous leptin synthesis represents a risk factor for developing AN.

Toward a Biological, Psychological and Familial Approach of Eating Disorders at Onset: Case-Control ANOBAS Study

Eating disorders (ED) are considered as heterogeneous disorders with a complex multifactor etiology that involves biological and environmental interaction. Objective: The aim was to identify specific ED bio-psychological-familial correlates at illness onset. Methods: A case-control (1:1) design was applied, which studied 50 adolescents diagnosed with ED at onset (12-17 years old) and their families, paired by age and parents' socio-educational level with three control samples (40 with an affective disorder, 40 with asthma, and 50 with no pathology) and their respective families. Biological, psychological, and familial correlates were assessed using interviews, standardized questionnaires, and a blood test. Results: After performing conditional logistic regression models for each type of variable, those correlates that showed to be specific for ED were included in a global exploratory model (R 2 = 0.44). The specific correlates identified associated to the onset of an ED were triiodothyronine (T3) as the main specific biological correlate; patients' drive for thinness, perfectionism and anxiety as the main psychological correlates; and fathers' emotional over-involvement and depression, and mothers' anxiety as the main familial correlates. Conclusion: To our knowledge, this is the first study to use three specific control groups assessed through standardized interviews, and to collect a wide variety of data at the illness onset. This study design has allowed to explore which correlates, among those measured, were specific to EDs; finding that perfectionism and family emotional over-involvement, as well as the T3 hormone were relevant to discern ED cases at the illness onset from other adolescents with or without a concurrent pathology.

Examining the significance of age of onset in persons with lifetime anorexia nervosa: Comparing child, adolescent, and emerging adult onsets in nationally representative U.S. study

OBJECTIVE

This study compared sociodemographic and clinical profiles of adult patients with lifetime DSM-5-defined anorexia nervosa (AN) categorized by age-of-onset using data from U.S. national sample of adults.

METHOD

Study included 216 participants from Third National Epidemiological Survey Alcohol and Related Conditions (NESARC-III) who met criteria for lifetime AN based on structured diagnostic interviews (AUDADIS-5) with age-of-onset prior to age 25. Of the 216 participants, 30 were categorized as child-onset (<15 years old), 104 adolescent-onset (15-18 years of age), and 82 "emerging-adult" (19-24 years of age); the three groups were compared on their clinical characteristics.

RESULTS

Among participants with lifetime diagnoses of AN with onsets earlier than 25 years, adjusted prevalence rates for the three groups were: 11.8% (SE = 2.04; child-onset), 39.6% (SE = 2.69; adolescent-onset), and 48.6% (SE = 2.67; emerging-adult). Child-onset group reported more frequent adverse childhood experiences (ACEs), lowest BMI, longest episode-duration, was least likely to attend college, and had highest rate of lifetime psychiatric comorbidity. Child-onset group had earliest age of help-seeking and were most likely to have been hospitalized. Group differences persisted in analyses adjusting for sociodemographic characteristics and duration of AN episode.

DISCUSSION

Our findings, based on a nationally representative sample of U.S. adults with lifetime diagnoses of AN, suggest that those with child-onset had more severe AN, greater life difficulties, and greater lifetime psychiatric comorbidity. Findings emphasize the importance of earlier recognition and rapid referral to effective treatments.

Contextualising Eating Disorder Concerns for Paediatric Obesity Treatment

PURPOSE OF REVIEW

Eating disorders are complex mental health conditions that share risk factors with obesity. This review outlines the context for concerns that paediatric obesity treatment presents a risk for eating disorder development.

RECENT FINDINGS

Most children and adolescents undergoing professionally supervised obesity treatment will have improvements or no change to eating disorder risk profiles. However, some may subsequently develop a clinical eating disorder, and this is proposed to relate to weight-focussed dietary interventions that are standard in paediatric obesity treatment. Nevertheless, dietary restraint may not be a strong predictor of eating disorder risk in the context of paediatric obesity treatment. Most international guidelines recommend weight maintenance or weight loss as a treatment goal, and weight loss is related to improvements in cardiometabolic health but not eating disorder risk in the short term. The risk of inducing or exacerbating an eating disorder during paediatric weight management is likely to be low; however, the serious consequences combined with increasing scale of obesity treatment, and lack of empirical evidence, are of concern. There is a need for further research to identify long-term predictors of eating disorder development for children and adolescents who seek treatment for their obesity.

Childhood onset exercise addiction or atypical anorexia nervosa during Covid-19: case report

BACKGROUND

Childhood-onset Anorexia Nervosa (AN) is recognised to be atypical in presentation, both in terms of extent and nature of eating pathology, exercise and compensatory behaviours with many falling short of full diagnostic criteria. Failure to consider an eating disorder diagnosis in youth who present with extreme weight loss may have serious immediate and long term implications. However, failure to consider other non-organic causes of weight loss may be equally detrimental to the child's health.

CASE PRESENTATION

This case reports on the acute presentation of a 12-year old boy, who presented to hospital in a severely malnourished state eight weeks into lockdown. To compensate for Covid-19 induced restrictions on sporting activity, this boy had followed a self-imposed daily schedule of arduous exercise, without increasing his nutritional intake. This report examines the clinical features suggestive of AN and other differential diagnosis. A discussion on the specific diagnostic differential of exercise addiction and challenges faced by youth during Covid-19 restrictions are presented.

CONCLUSION

Accepting that AN may present atypically in pre-pubertal youth, it is important that clinicians maintain an open mind in youth presenting without goal directed weight loss. Although weight loss was significant in this case, it was due to an excessive exercise regime. This may have commenced as a coping strategy in response to Covid-19 restrictions but subsequently became excessive and impairing in nature. The collateral damage of Covid-19 mandated restrictions, aimed at containing the spread of the virus, are evident in this case. Clinicians need to be alert to potentially maladaptive coping strategies and unusual or altered pathways of presentation, especially in younger children during these challenging times.

Differences between Australian adolescents with eating disorder symptoms who are in treatment or not in treatment for an eating disorder

BACKGROUND

Mental health problems frequently occur during adolescence, however, few adolescents seek treatment for these problems, especially for eating disorders. The current study aimed to quantify how adolescents in a clinical sample (ie, those receiving treatment for an eating disorder), differ in terms of psychological factors (eating disorder symptoms and psychological distress), compared to adolescents with eating pathology in a community sample (ie, those not receiving treatment).

METHOD

Data were used from a community sample of adolescents with eating disorder pathology who have not sought treatment (n = 1011) and a clinical sample of adolescents presenting at eating disorder services for treatment (n = 153). Participants reported demographics and completed questionnaires assessing weight/shape concerns, disordered eating and psychological distress.

RESULTS

Adolescents with a lower BMI, more frequent purging and higher weight/shape concerns were more common in the clinical sample, while those engaging in more frequent driven exercise were less common in the clinical sample. The samples did not differ in severity of psychological distress.

CONCLUSIONS

The findings highlight the need for increasing mental health literacy about the role of BMI and driven exercise in eating disorder symptom presentation to increase early detection of these disorders among adolescents.

A primary care modification of family-based treatment for adolescent restrictive eating disorders

Although eating disorders pose a significant threat to the health and well-being of children and adolescents, due to a profound scarcity of specialty providers, only a small percentage of patients receives evidence-based treatment. To improve access to care for restrictive eating disorders, we developed a modified version of Family-Based Treatment to be delivered by primary care providers (PCPs) and conducted a pilot study to evaluate the feasibility and preliminary outcomes of this intervention. Fifteen adolescents (mean age = 15.5 years) with restrictive eating disorders and their caregiver(s) were enrolled in Family-Based Treatment for Primary Care (FBT-PC), delivered by three trained PCPs. Retention for the intervention was high (n = 13, 86.7%). Over the course of 3 months, participants attended an average of 9.2 (SD = 2.8) sessions and experienced a significant increase in BMI percentile from 39.1 to 54.8 (t (13) = -6.71, p < .001; d = .61). FBT-PC appears to be feasible for implementation in the primary care setting and has the potential to improve access to treatment and yield positive outcomes for young patients with restrictive eating disorders.

Estimated Prevalence and Care Pathway of Feeding and Eating Disorders in a French Pediatric Population

Feeding and Eating Disorders (FED) are mostly described in infants and adolescents but are less well-known in children. Information on the prevalence of FED in the general pediatric population is still limited. The aim of this study was to estimate the prevalence and the care pathway of FED in a population aged 0-18 years old, using the Diagnostic and Statistical Manual of Mental Disorders (DSM)-5 classification. Two physicians interviewed 401 families using a questionnaire including demographics, BMI, dietary behavior data, and age-appropriate screening tools. Qualitative and quantitative variables were compared using the Chi² test and Student's t-test, respectively. After a headcount adjustment based on the French population by age group, the estimated prevalence rate was 3% [95%CI (1.7-5.1)] for Avoidant and Restrictive Food Intake Disorder (ARFID), and 9.7% [95%CI (7.2-13.0)] for Unspecified FED (UFED), which included other restrictive and compulsive FED. The median age for ARFID was 4.8 years (0.8-9 years), and 7.5 years (0.6-17 years) for UFED. The interviews did not identify cases of anorexia, bulimia, binge eating disorder, other specified FED, pica or rumination. Only 15.2% of children with an FED were receiving medical care. The development of validated pediatric screening tools, as well as the training of health professionals in children FED is necessary.

Men's experiences of eating disorder treatment: A qualitative systematic review of men-only studies

WHAT IS KNOWN ON THE SUBJECT?: There is a widespread perception that eating disorders are predominantly women´s illnesses. Most studies in the field of eating disorders include predominantly women. Current eating disorder programmes are tailored to meet women´s needs. At the same time, studies show that the rate of eating disorders among men is rising. Men tend to seek help for their eating disorder late in the course of their illness; even when they do seek treatment, they run risk of being undiagnosed by health professionals. WHAT THE PAPER ADDS TO EXISTING KNOWLEDGE?: We assessed the current knowledge on how men think and feel about their eating disorders and explored how this may affect their help-seeking behaviours and how they go about managing their eating disorders. Men experience unique symptoms and issues that may translate into unique treatment needs. There is a call to re-evaluate the current status quo for men with eating disorders regarding access to and receiving treatment for their eating disorders. WHAT ARE THE IMPLICATIONS FOR PRACTICE?: It is becoming an increasing priority to effectively treat men with eating disorders. Men need to be recognized as stakeholders in eating disorder-associated health care delivery. Healthcare professionals should receive training about the nature of eating disorders in men. Eating disorder-specific treatments will require adaptations to mirror the needs of individuals rather than particular gender/sex entities. ABSTRACT: Objective Despite the widespread perception that eating disorders (EDs) are predominantly experienced by women and girls, the incidence rate among men has risen substantially in recent years. Men may face unique challenges accessing treatment, which can negatively affect prognosis. The present paper aimed to review men's thoughts and feelings about their ED, and their experiences of ED treatment. Method We conducted a systematic search for qualitative articles focusing on the treatment experiences of men with EDs. Results Nine studies met inclusion criteria. Key themes that emerged across the studies were as follows: (a) recognition of the ED, (b) help-seeking, (c) treatment characteristics and (d) patient characteristics. Given that EDs are widely regarded to exclusively affect women and girls, men were reluctant to recognize their EDs, faced minimization of their symptoms by health professionals and had difficulty finding treatments that were tailored to their unique needs and preferences as men. Conclusions The present findings may serve as reference points to design future ED-specific interventions that are more inclusive of men. Further studies are needed to explore the differential experiences of men across diagnostic categories and treatment types, as well as elucidate the potential role of men-only services.

Factors related to length of stay, referral on discharge and hospital readmission for children and adolescents with anorexia nervosa

OBJECTIVE

This study examined factors related to hospital length of stay (LOS), reported referral on discharge, and hospital readmission, for children and adolescents (C&A) admitted to public hospitals for anorexia nervosa (AN), in a large health jurisdiction in Australia.

METHOD

Sociodemographic, illness, treatment, and hospital factors associated with LOS, reported referral to post-hospital treatment, and readmission within 28 days were analyzed for C&A with AN admitted to all New South Wales public hospitals in 2017, using median, multinomial logit and logit models. The sample comprised 289 admissions by 200 C&A aged 9-18 years with a primary or secondary diagnosis of AN.

RESULTS

AN as a primary diagnosis and the presence of some physical and mental co-occurring conditions (e.g., malnutrition and obsessive-compulsive disorders) conferred a longer LOS. The majority of admissions were recorded being referred to primary care physicians (59.86%) and relatively small numbers to outpatient mental health services (5.54%) or outpatient eating disorder services (8.30%), with age, area socioeconomic status, and illness factors related to referral type. Male, low socioeconomic status, the presence of some co-occurring illnesses (e.g., adjustment disorder and viral infection), and rural or remote locations increased the likelihood of readmission.

DISCUSSION

The findings have implications for service design, in particular the pathway to care from hospital into community for AN. Targeted interventions should consider recognizing and treating physical co-occurring illnesses at presentation to the health system, ensuring appropriate referral to community services, and providing services in socioeconomically disadvantaged and rural or remote areas.

Can you find the right support for children, adolescents and young adults with anorexia nervosa: Access to age-appropriate care systems in various healthcare systems

OBJECTIVE

Anorexia nervosa (AN) often has its onset in childhood or adolescence. However, there is insufficient knowledge regarding access to and utilisation of age-specific clinical diagnostics and treatment.

METHODS

A literature review covering the last 10 years was conducted to provide a narrative review of the current state of research on the detection and treatment of young patients with AN in primary and secondary care.

RESULTS

Most articles were of Western European or US origin. Timely diagnosis of the eating disorder (ED) and treatment options more often depend on the structure and quality of the national health care system than on scientific evidence. Regular paediatric health check-ups and age-appropriate eating disorder services appear to facilitate early diagnosis. Age-specific treatment that also involves the carers is often associated with a higher continuity of care and a better outcome. Although many adolescents require an extension of treatment into young adulthood, individual and health care system-related obstacles in many countries prevent a smooth transition.

CONCLUSION

To improve outcomes in childhood and adolescent AN, age-specific and timely diagnostic and therapeutic procedures are urgently needed.

Non-suicidal self-injury in patients with eating disorders: nuclear aspects

Background:

Through the culture of thinness, increasingly promoted in our society as a beauty canon, it is not surprising that the number of people affected by eating disorders is increasing.

Objective:

This research aims to study the relationship between non-suicidal self-injuries and nuclear aspects of eating disorders specified along with this article.

Methods:

The sample consisted of 60 women diagnosed with anorexia and bulimia. Questionnaires assessing impulsivity, body satisfaction, alexithymia, body attitude and self-esteem were administered. Participants with non-suicidal self-harm were compared with those without it, and participants with anorexia with and without self-harm and participants with bulimia with and without self-harm were compared.

Results:

Differences were found in body dissatisfaction= 5.71; p ≤0.01), body attitudes= 4.80; p ≤0.02), self-esteem= 14.09; p ≤0.00) and impulsivity (t= 3.39; p ≤0.01) between participants with and without non-suicidal self-harm.

Conclusions:

These are key factors for the clinical area in the treatment of eating disorders to prevent the presence of self-harm, as it allows focusing the treatment target on those aspects such as dissatisfaction and impulsivity, which are key in the development of self-harm.

AN-VR-BE. A Randomized Controlled Trial for Reducing Fear of Gaining Weight and Other Eating Disorder Symptoms in Anorexia Nervosa through Virtual Reality-Based Body Exposure

In vivo body exposure therapy is considered an effective and suitable intervention to help patients with anorexia nervosa (AN) reduce their body image disturbances (BIDs). However, these interventions have notable limitations and cannot effectively reproduce certain fears usually found in AN, such as the fear of gaining weight (FGW). The latest developments in virtual reality (VR) technology and embodiment-based procedures could overcome these limitations and allow AN patients to confront their FGW and BIDs. This study aimed to provide further evidence of the efficacy of an enhanced (by means of embodiment) VR-based body exposure therapy for the treatment of AN. Thirty-five AN patients (16 in the experimental group, 19 in the control group) participated in the study. FGW, BIDs, and other body-related and ED measures were assessed before and after the intervention and three months later. The experimental group received treatment as usual (TAU) and five additional sessions of VR-based body exposure therapy, while the control group received only TAU. After the intervention, ED symptoms were clearly reduced in both groups, with most of the changes being more noticeable in the experimental group. Specifically, after the intervention and at follow-up, significant group differences were found in the FGW and BIDs, with the experimental group showing significantly lower values than the control group. The current study provides new insights and encouraging findings in the field of exposure-based therapies in AN. VR technology might improve research and clinical practice in AN by providing new tools to help patients confront their core fears (i.e., food- or weight-related cues) and improve their emotional, cognitive, and behavioral responses to their body image.

Involvement of community paediatricians in the care of children and young people with mental health difficulties in the UK: implications for case ascertainment by child and adolescent psychiatric, and paediatric surveillance systems

OBJECTIVE

To ascertain the extent to which community paediatricians are involved in the care of children with mental health conditions in order to determine which difficulties are appropriate for single or joint surveillance by the British Paediatric Surveillance Unit (BPSU) and Child and Adolescent Psychiatry Surveillance System (CAPSS).

DESIGN

An online survey of the 1120 members of the British Association of Community Child Health (BACCH) working in 169 Community Child Health (CCH) services in the UK.

RESULTS

A total of 245 community paediatricians responded to the survey. This represents 22% of members of BACCH but likely to have covered many of the 169 CCH units because participants could respond on behalf of other members in their unit. The survey showed that children and young people (CYP) with neurodevelopmental conditions presented more frequently to paediatrics than to Child and Adolescent Mental Health Services (CAMHS). In addition, a sizeable proportion of CYP with emotional difficulties presented to paediatricians (eg, 29.5% for anxiety/obsessive compulsive disorder (OCD), and 12.8% for depression)-mainly due to difficulty with accessing CAMHS. More than half of the community paediatricians are involved in the care of CYP with anxiety and OCD, while 32.3% are involved in the care of those with depression.

CONCLUSION

There is significant involvement of community paediatricians in the care of CYP with mental health conditions. Involvement is highest for neurodevelopmental conditions, but also significant for CYP with emotional difficulties. The implication of the findings for surveillance case ascertainment is that joint BPSU and CAPSS is recommended for surveillance studies of neurodevelopmental conditions. However, for emotional disorders, single or joint surveillance should be made based on the specific research question and the relative trade-offs between case ascertainment, and the additional cost and reporting burden of joint surveillance. Single CAPSS studies remain appropriate for psychosis and bipolar disorder.