Early weight gain in family-based treatment predicts greater weight gain and remission at the end of treatment and remission at 12-month follow-up in adolescent anorexia nervosa

TeenGrowth: Individualized Estimations of Weight-Related Risk and Recovery Metrics for Young People With Eating Disorders

OBJECTIVE

While weight restoration and/or stabilization is crucial for successful treatment and sustained recovery from restrictive eating disorders (EDs), it is often challenging to define an individual's expected healthy body weight. This paper introduces the TeenGrowth package and its web-based application, designed to calculate and forecast predicted body mass index (BMI) and weight across adolescence.

METHOD

TeenGrowth includes functions for data cleaning, predicted BMI z-score and BMI calculations, and growth forecasting. The accompanying Shiny web application provides a user-friendly interface, enabling the identification of predicted weights for individuals. Through a series of 30 computer-simulated datasets for 1100 individuals (1000 "healthy" and 100 "ED"), the package's options for predictive models are evaluated.

RESULTS

Simulation results highlight the potential for use in ED screening and treatment and guide users on modeling options. Prediction of adolescent BMI was more accurate for TeenGrowth models, specifically mean pre-ED BMIz, most recent pre-ED BMIz, or the combination of these metrics (median BMI error for these methods across all simulations = 0.69) when compared to predictions at the 50th percentile of population-based norms (median BMI error = 2.15). Aggregated across simulation approaches, results further support optimal accuracy in identifying ED cases when using mean, most recent, or mean + most recent methods (mean ED case classification accuracy = 0.86) as compared to the use of a population-based metric-85% of the 50th percentile BMI (mean classification accuracy = 0.61).

DISCUSSION

The introduction of TeenGrowth represents a first step towards setting reproducible, personalized predicted body weights for young people.

Ecological Momentary Assessment for Adolescents With Anorexia Nervosa and Their Parents/Caregivers in Family-Based Treatment

INTRODUCTION

Studies have shown that early weight gain in family-based treatment (FBT) predicts treatment response in adolescents with anorexia nervosa (AN); however, research examining factors associated with early weight gain in FBT is limited. This study tested the feasibility and acceptability of ecological momentary assessment (EMA) in early FBT, particularly to capture momentary data on family climate during mealtimes.

METHODS

Using multiple methods, quantitative (EMA) and qualitative (interviews) data were collected in the first 4 weeks of FBT. Participants (11 families; 9 adolescents, 19 parents/caregivers) completed EMA assessments daily on the emotional climate during meals, parental strategies and confidence/agreement in renourishment. Qualitative interviews obtained technological and procedural data using EMA. Completion rates and markers of change were explored using repeated measures ANOVA. Interviews were analyzed using reflexive thematic analysis.

RESULTS

The EMA completion rate for all family members was 78%: 84% for adolescents, 83% for mothers, 64% for fathers. Results demonstrated changes in caregivers' use of renourishment strategies and in the emotional climate (decreased anger) at mealtimes. No changes were observed in caregiver confidence/agreement in renourishment. Qualitative analyses revealed factors interfering with and facilitating the use of EMA.

DISCUSSION

EMA is an acceptable and feasible tool for use with adolescents and their families in early FBT, particularly to capture momentary data on family climate during mealtimes. Future research is needed with larger sample sizes to examine the mechanisms of change in early FBT, and the utility of EMA as a clinical tool in FBT.

Delivering evidence-based treatment via telehealth for Anorexia Nervosa in rural health settings: a multi-site feasibility implementation study

BACKGROUND

Access to evidence-based treatments such as family-based therapy (FBT) is difficult for adolescents diagnosed with Anorexia Nervosa (AN) living in rural or regional areas due to a limited trained workforce, high staff turnover and inconsistent treatment fidelity. Telehealth offers a potential access solution by facilitating care irrespective of family or service location. The disruption to the health system caused by COVID-19 amplified an existing need and increased the use of telehealth to deliver FBT before its efficacy and safety was fully evaluated. This study aimed to evaluate the feasibility, acceptability and preliminary efficacy of telehealth-FBT delivered by community-based clinicians within rural services directly into the home to reduce the eating disorder symptoms of adolescents diagnosed with AN.

METHODS

A pre- and post-implementation multi-site case series delivered up to 20 sessions of telehealth-FBT to 28 adolescents (89.29% female, M = 14.68 ± 1.58 years) living in rural or regional Australia. The RE-AIM framework guided the evaluation, with Reach (treatment uptake and completion); Efficacy (change in weight, global eating disorder symptoms, and remission from baseline to end of treatment and six-month follow-up); Adoption (patient characteristics and drop out); Implementation (intervention fidelity) and Maintenance (outcomes and intervention during the follow-up period) used to assess the feasibility and preliminary efficacy of telehealth-FBT.

RESULTS

There was a high level of interest in telehealth-FBT, with two-thirds of eligible families consenting to participate. Both treatment engagement and completion rates were over 60%, and treatment was delivered with acceptable fidelity. Twenty adolescents (71.43%) met the diagnostic criteria for AN (baseline 86.03%mBMI ± 7.14), and eight (28.57%) for Atypical AN (baseline 101.34%mBMI ± 8.28), with an overall mean duration of illness of 8.53 months (SD = 5.39, range 2-24 months). There was a significant increase in %mBMI at the end of treatment compared to the baseline (p = 0.007, 95%CI: 1.04-6.65), with over 68% of adolescents weight restored and 36.8% of these achieving both weight and psychological remission criteria. Weight remained significantly improved at six-month follow-up (p = 0.005, 95%CI: 1.57-8.65). Also, there was a decrease in adolescents' global eating disorder symptoms, as rated by their parents, at the end of treatment compared to the baseline of 0.735 (p = 0.028, 95%CI: 0.079-1.385).

CONCLUSIONS

Telehealth-FBT was feasibly implemented into rural services and delivered by community clinicians with reach, adoption, preliminary efficacy, and fidelity scores comparable to those reported by specialist studies.

TRIAL REGISTRATION

The study was conducted according to the HREC-approved protocol (HREC 2020/ETH00186) and registered with the Australian and New Zealand Clinical Trials Registry (ANZCTR # 12620001107910).

An Exploration of Clinical Characteristics and Treatment Outcomes Associated with Dietetic Intervention in Adolescent Anorexia Nervosa

Background: Although dietitians possess expert knowledge on the interplay between nutrition and health, their specific role in family therapy for anorexia nervosa (FT-AN) remains a topic of debate. Some of the literature indicates insufficient evidence to affirm the impact of dietetic interventions, emphasising variability in outcomes and a need for standardised research. This study aimed to identify the clinical characteristics of adolescents requiring dietetic intervention during FT-AN and to assess differences in clinical outcomes between those receiving dietetic support and those who did not. Methods: A retrospective cohort study was conducted at the Maudsley Centre for Child and Adolescent Eating Disorders in London. Patients were selected from electronic records. Inclusion criteria were ICD-10 diagnosis of AN and completion of FT-AN treatment between January 2020 and December 2022. Collected data included weight (kg and %mBMI), eating disorder symptom severity, pre-assessment anxiety (patient and parent), and details of FT-AN sessions (i.e., frequency and amount). The sample was divided into two groups: those who received dietetic input and those who did not. Statistical analyses included Mann-Whitney U tests, χ2 tests, independent t-tests, and a logistic regression to examine differences at baseline, 4-6 weeks post-assessment, and discharge. Results: The study included 92 participants (dietetic group = 33 participants; non-dietetic group = 59 participants). Baseline characteristics were comparable between groups. The logistic regression showed no significant predictors for dietetic input. At 4-6 weeks, those requiring dietetic input exhibited lower %mBMI (83.3% vs. 87.3%, p = 0.027) and poorer weight gain (+2.3 kg vs. +3.1 kg, p = 0.04). By discharge, weight restoration was similar (92% vs. 93% mBMI, p = 0.64), although the dietetic group had more therapeutic treatment sessions (24 vs. 19, p = 0.04). Discussion: This study found no specific predictors for prioritising dietetic input in young people during FT-AN treatment. While those receiving dietetic support struggled with weight gain early and attended more sessions, both groups achieved similar weight outcomes by the end of treatment. Future research should focus on the timing and content of dietetic interventions, as well as perspectives from patients and caregivers, to better understand their role and impact on cognitive and emotional recovery aspects.

Partnerships with primary care providers: Opportunities to prevent eating disorders and mitigate their progression in young people

Epidemiologic research has identified numerous interpersonal and individual risk factors for and warning signs of emerging eating disorders in adolescents. These findings have informed public health prevention and treatment strategies, including translation of findings to clinical recommendations for primary care providers (PCPs). A next step in this translational work could include a comprehensive approach where PCPs are seen as partners in efforts to improve population health outcomes. PCPs have great potential to implement high-yield interventions that prevent or attenuate the course of adolescent eating disorders. To illustrate this potential, we present a case that highlights missed opportunities for a PCP to prevent, detect, and intervene during a patient's developing eating disorder. We then relate the case to two emerging research programs that utilize PCP partnerships: one trains PCPs in Strengths-Based Adolescent Healthcare to improve eating disorder prevention; the other adapts Family-Based Treatment for primary care to improve early access to evidence-based treatment. In addition to these promising areas of research, efforts are needed to widen requirements for eating disorder curricula in medical training programs and to address weight stigma in primary care. Together these efforts will help PCPs become effective partners in the prevention and treatment of eating disorders.

Eating Disorders: All that a Pediatrician Should Know

Eating Disorders are psychiatric conditions that can manifest clinically as malnutrition due to restrictive eating and weight control behaviors or obesity due to binge eating. Eating disorders such as anorexia and bulimia nervosa have peak onset during adolescence and young adulthood. This population is at the highest risk due to psychosocial changes surrounding identity development and body image that occurs during this life-stage. Though binge eating disorder and avoidant/restrictive food intake disorder are not characterized by body image overvaluation, peak onset is also during adolescence and young adulthood.

Comparing changes in eating disorder psychopathology and comorbid symptoms over treatment in anorexia nervosa and atypical anorexia nervosa in a partial hospitalization program

OBJECTIVE

The objective of this study is to compare treatment trajectories in anorexia nervosa (AN) and atypical AN.

METHOD

Adolescents and adults with AN (n = 319) or atypical AN (n = 67) in a partial hospitalization program (PHP) completed diagnostic interviews and self-report questionnaires measuring eating disorder (ED), depression, and anxiety symptoms throughout treatment.

RESULTS

Premorbid weight loss did not differ between diagnoses. Individuals with atypical AN had more comorbid diagnoses, but groups did not differ on specific diagnoses. ED psychopathology and comorbid symptoms of depression/anxiety did not differ at admission between groups nor did rate of change in ED psychopathology and comorbid symptoms of depression/anxiety from admission to 1-month. From admission to discharge, individuals with atypical AN had a faster reduction in ED psychopathology and comorbid symptoms of depression and anxiety (ps < 0.05; rs = 0.01-0.32); however, there were no group differences in ED psychopathology or depression symptoms at discharge (ps>.50; ds = .01-.30). Individuals with atypical AN had lower anxiety at discharge compared to individuals with AN (p = 0.05; d = .4). Length of stay did not differ between groups (p = 0.11; d = .21).

DISCUSSION

Groups had similar ED treatment trajectories, suggesting more similarities than differences. PHP may also be effective for AAN.

PUBLIC SIGNIFICANCE

This study supports previous research that individuals with AN and atypical AN have more similarities than differences. Results from this study indicate that individuals with AN and atypical AN have similar treatment outcomes for both ED psychopathology and depressive symptoms; however, individuals with atypical AN have lower anxiety symptoms at discharge compared to individuals with AN. AN and atypical AN also have more symptom similarity at admission and throughout treatment, which challenges their current designation as distinct disorders.

Course and outcome in individuals with atypical anorexia nervosa: Findings from the Study of Refeeding to Optimize iNpatient Gains (StRONG)

OBJECTIVE

We previously reported that participants with atypical anorexia nervosa (atypical AN) had higher historical and admission weights, greater eating disorder psychopathology, but similar rates of amenorrhea and weight suppression at baseline as compared to anorexia nervosa (AN); here, we compare 1-year outcomes.

METHOD

Weight, % median body mass index (%mBMI), Eating Disorder Examination Questionnaire (EDE-Q) scores, resumption of menses, and rehospitalizations were examined at 3, 6, and 12 months post-discharge. Analyses (N = 111) compared changes in %mBMI, weight suppression, and EDE-Q scores over time between atypical AN and AN.

RESULTS

Among the participants (48 atypical AN, 63 AN), both groups gained weight but those with atypical AN had lower gains than those with AN in %mBMI (p = .02) and greater weight suppression (p = .002) over time. EDE-Q scores improved over time, independent of weight suppression, with no significant difference between atypical AN and AN. Groups did not differ by rates of resumption of menses (80% atypical AN, 76.9% AN) or rehospitalization (29.2% atypical AN, 37.9% AN). Greater weight suppression predicted longer time to restore menses and more days of rehospitalization.

DISCUSSION

Individuals with atypical AN regained a smaller proportion of body mass and were more weight suppressed over time. Change in eating disorder cognitions, resumption of menses, and rehospitalization rates at 1-year follow-up did not differ between groups. There was no significant difference in weight suppression between groups for those who were psychologically improved at 12 months. Findings highlight limitations in our understanding of weight recovery in atypical AN. New metrics for recovery are urgently needed.

PUBLIC SIGNIFICANCE

Little is known about outcome in atypical anorexia nervosa (atypical AN). We examined recovery metrics in young people with atypical AN and anorexia nervosa (AN) 1 year after medical hospitalization. Individuals with atypical AN showed slower weight gain and remained further from their pre-illness weight. There were no differences in the rates of psychological recovery, resumption of menses, or rehospitalization. New metrics are needed to assess recovery in atypical AN.

Expressed emotion and early treatment response in family-based treatment for adolescent anorexia nervosa

This study examined the effect of pre-treatment levels of parental expressed emotion (EE) on early treatment response for adolescent anorexia nervosa (AN). Data were collected from 121 adolescents, ages 12-18, who met DSM-IV criteria for AN excluding the amenorrhea criterion, and their parents. Participants were randomized to family-based treatment (FBT) or adolescent-focused therapy (AFT). To examine the effects of different thresholds of EE, we used two different levels of EE in analyses. Results demonstrated that adolescents who had at least one parent with elevated EE indicated by a lower threshold (i.e. even mild levels) at baseline were less likely to achieve an early treatment response, suggesting that EE might interfere with treatment success from the start of treatment. When high EE was defined by a higher threshold, these effects were no longer significant, regardless of treatment type (FBT or AFT). These findings suggest that adolescents with AN may be more sensitive to EE than other mental illnesses, such that lower thresholds of EE impact the speed with which they are able to reduce symptoms and gain weight in treatment. It may be necessary to target parental EE prior to or early in treatment or pivot to parent-focused treatment to change the trajectory of treatment response. Future research is needed to explore ways parental EE can be reduced.

Adapting Behavioral Treatments for Primary Care Using a Theory-Based Framework: The Case of Adolescent Eating Disorders

Evidence-based treatments have been developed for a range of pediatric mental health conditions. These interventions have proven efficacy but require trained pediatric behavioral health specialists for their administration. Unfortunately, the widespread shortage of behavioral health specialists leaves few referral options for primary care providers. As a result, primary care providers are frequently required to support young patients during their lengthy and often fruitless search for specialty treatment. One solution to this treatment-access gap is to draw from the example of integrated behavioral health and adapt brief evidence-based treatments for intra-disciplinary delivery by primary care providers in consultation with mental health providers. This solution has potential to expand access to evidence-based interventions and improve patient outcomes. We outline how an 8-step theory-based process for adapting evidence-based interventions, developed from a scoping review of the wide range of implementation science frameworks, can guide treatment development and implementation for pediatric behavioral health care delivery in the primary care setting, using an example of our innovative treatment adaptation for child and adolescent eating disorders. After reviewing the literature, obtaining input from leaders in eating disorder treatment research, and engaging community stakeholders, we adapted Family-Based Treatment for delivery in primary care. Pilot data suggest that the intervention is feasible to implement in primary care and preliminary findings suggest a large effect on adolescent weight gain. Our experience using this implementation framework provides a model for primary care providers looking to develop intra-disciplinary solutions for other areas where specialty services are insufficient to meet patient needs.

Early weight gain as a predictor of weight restoration in avoidant/restrictive food intake disorder

BACKGROUND

Previous research has demonstrated that early weight gain in family-based treatment (FBT) is predictive of remission for adolescents with anorexia nervosa (AN). However, no published data has addressed if early weight gain is also predictive of reaching weight restoration (i.e., 95% EBW) in patients with avoidant/restrictive food intake disorder (ARFID). Furthermore, no studies have evaluated the performance of the statistical models used to predict weight restoration at the end of treatment. This study sought to examine whether early weight gain in ARFID is predictive of weight restoration at 20 weeks using ROC analysis. Additionally, this study assessed how accurately the model classified patients and what types of misclassifications occurred.

METHODS

Participants (n = 130, 57.7% cisgender female 70.0% white) received virtual outpatient FBT. Receiver operating characteristics (ROC) were used to predict successful weight restoration at end of treatment, using early weight gain as the predictor. Twenty weeks was considered as the end of treatment, to align with the definition of end of treatment in FBT clinical trials. ROC analyses demonstrated that gaining at least 6.2 pounds by week 5 of treatment was the strongest predictor of achieving 95% EBW at 20 weeks (AUC = 0.72 [0.63, 0.81]). ROC analyses misclassified 35% of patients; the most common misclassification was predicting that a patient would not achieve 95% EBW when they actually did (61.6%). A logistical regression model, which included the patients' %EBW at admission in addition to early weight gain as a predictor, outperformed the ROC analyses (AUC = 0.90 [0.85, 0.95]) and provided additional context by showing the probability that a patient would succeed.

CONCLUSION

Taken together, research demonstrates that early weight gain is a useful predictor of 95% EBW at 20 weeks of treatment for patients with ARFID who require weight restoration. Furthermore, results suggest that statistical models need to take into account additional information, such as %EBW at admission, along with early weight gain in order to more accurately predict which patients will reach weight restoration at week 20.

Adolescent utilization of eating disorder higher level of care: roles of family-based treatment adherence and demographic factors

BACKGROUND

Outpatient family-based treatment (FBT) is effective in treating restrictive eating disorders among adolescents. However, little is known about whether FBT reduces higher level of care (HLOC) utilization or if utilization of HLOC is associated with patient characteristics. This study examined associations between utilization of eating disorder related care (HLOC and outpatient treatment) and reported adherence to FBT and patient characteristics in a large integrated health system.

METHODS

This retrospective cohort study examined 4101 adolescents who received care for restrictive eating disorders at Kaiser Permanente Northern California. A survey was sent to each medical center to identify treatment teams as high FBT adherence (hFBT) and low FBT adherence (lFBT). Outpatient medical and psychiatry encounters and HLOC, including medical hospitalizations and higher-level psychiatric care as well as patient characteristics were extracted from the EHR and examined over 12 months post-index.

RESULTS

2111 and 1990 adolescents were treated in the hFBT and lFBT, respectively. After adjusting for age, sex, race/ethnicity, initial percent median BMI, and comorbid mental health diagnoses, there were no differences in HLOC or outpatient utilization between hFBT and lFBT. Females had higher odds of any utilization compared with males. Compared to White adolescents, Latinos/Hispanics had lower odds of HLOC utilization. Asian, Black, and Latino/Hispanic adolescents had lower odds of psychiatric outpatient care than Whites.

CONCLUSIONS

Reported FBT adherence was not associated with HLOC utilization in this sample. However, significant disparities across patient characteristics were found in the utilization of psychiatric care for eating disorders. More efforts are needed to understand treatment pathways that are accessible and effective for all populations with eating disorders.

Associations between nutritional intake, stress and hunger biomarkers, and anxiety and depression during the treatment of anorexia nervosa in adolescents and young adults

Adolescents and young adults (AYA) with anorexia nervosa (AN) frequently have co-occurring anxiety and depression, which can negatively impact prognosis. To inform treatment of co-occurring anxiety and depression, we assessed the association of nutritional intake and hunger/stress hormones on anxiety and depression using a six-month longitudinal study of 50 AYA females receiving care for AN. At baseline and six months, we measured anxiety (Spielberger State/Trait Anxiety Inventory [STAI]), depression (Beck Depression Inventory [BDI]), body mass index (BMI), 3-day dietary intake (total calories and proportion of fat, carbohydrate, protein), and serum cortisol, leptin, and adiponectin. We performed mixed effects linear regression analyses, adjusting for age, duration of AN, and percentage of median BMI (%mBMI). At baseline, median age was 16.3 (interquartile range [IQR]=2.5) years, duration of AN was 6 (IQR=8.8) months and %mBMI was 87.2 (IQR=10.5)%. Fifty-six percent had clinically significant anxiety; 30% had depression. Over 6 months, participants had significant improvements in %mBMI (+2.2[IQR=9.2]%, p<.01), STAI (-9.0[IQR=25.0], p<.01), and BDI (-5.0[IQR=13.8], p<.01) scores. Participants with larger improvements in caloric intake had greater improvements in STAI (p=.03) and BDI scores (p=.04). Larger improvement in BDI was significantly associated with increased fat intake (p<.01), but not carbohydrate or protein intake. Change in STAI was not associated with changes in fat, carbohydrate, or protein intake. Changes in STAI or BDI scores were not associated with changes in cortisol, leptin, or adiponectin. Increased caloric intake may augment treatment of co-occurring anxiety and depression, and increased fat intake may improve depression for AYA with AN.

Psychotherapies for eating disorders: findings from a rapid review

BACKGROUND

Psychotherapy is considered central to the effective treatment of eating disorders-focusing on behavioural, psychological, and social factors that contribute to the illness. Research indicates psychotherapeutic interventions out-perform placebo, waitlist, and/or other treatments; but, outcomes vary with room for major improvement. Thus, this review aims to (1) establish and consolidate knowledge on efficacious eating disorder psychotherapies; (2) highlight select emerging psychotherapeutic interventions; and (3) identify knowledge gaps to better inform future treatment research and development.

METHODS

The current review forms part of a series of Rapid Reviews published in a special issue in the Journal of Eating Disorders to inform the development of the Australian-government-funded National Eating Disorder Research and Translation Strategy 2021-2031. Three databases were searched for studies published between 2009 and 2023, published in English, and comprising high-level evidence studies (meta-analyses, systematic reviews, moderately sized randomised controlled studies, moderately sized controlled-cohort studies, and population studies). Data pertaining to psychotherapies for eating disorders were synthesised and outlined in the current paper.

RESULTS

281 studies met inclusion criteria. Behavioural therapies were most commonly studied, with cognitive-behavioural and family-based therapies being the most researched; and thus, having the largest evidence-base for treating anorexia nervosa, bulimia nervosa, and binge eating disorder. Other therapies, such as interpersonal and dialectical behaviour therapies also demonstrated positive treatment outcomes. Emerging evidence supports specific use of Acceptance and Commitment; Integrative Cognitive Affective; Exposure; Mindfulness; and Emotionally-Focused therapies; however further research is needed to determine their efficacy. Similarly, growing support for self-help, group, and computer/internet-based therapeutic modalities was noted. Psychotherapies for avoidant/restrictive food intake disorder; other, and unspecified feeding and eating disorders were lacking evidence.

CONCLUSIONS

Currently, clinical practice is largely supported by research indicating that behavioural and cognitive-behavioural psychotherapies are most effective for the treatment of eating disorders. However, the efficacy of psychotherapeutic interventions varies across studies, highlighting the need for investment and expansion of research into enhanced variants and novel psychotherapies to improve illness outcomes. There is also a pressing need for investigation into the whole range of eating disorder presentations and populations, to determine the most effective interventions.

Effects of family-based treatment on adolescent outpatients treated for anorexia nervosa in the Eating Disorder Unit of Helsinki University Hospital

BACKGROUND

Family therapy for adolescent anorexia nervosa (AN) has stronger evidence of efficacy in comparison with individual therapy, and family-based treatment (FBT) is the most evaluated in numerous randomized clinical trials. However, few studies have focused on how FBT performs outside of research settings. The current study is the first to assess clinical outcomes of FBT for adolescent AN in Finland, in a specialized outpatient clinic.

AIM

The naturalistic outcome of outpatient FBT for adolescent AN was investigated.

METHODS

Fifty-two female patients and their families who received FBT at a tertiary eating disorders unit participated in the study. Data on their pre-treatment parameters, treatment details, and condition at the end of treatment (EOT) was collected from their medical records.

RESULTS

At EOT, a majority (61.5%) had achieved a full weight restoration [percentage of expected body weight (%EBW) ≥ 95%]. Participants with an %EBW ≥ 95 at EOT had a significantly higher pre-treatment %EBW than those with an EBW < 95% at EOT. Participants with an EBW ≥ 95% at EOT showed significantly higher total weight gain during the treatment period, a higher rate of regular menstrual periods at EOT, significantly lower rates of dietary restrictions, and less cognitive or behavioral symptoms of the eating disorder overall, compared to participants who did not achieve a normal body weight. In 22 cases (42.3%), there was no need for further treatment at the end of FBT. Participants who needed further treatment after FBT, compared to those who did not, showed significantly higher rates of psychiatric comorbidity, history of mental health treatment, and need for psychopharmacological treatment.

CONCLUSIONS

In this naturalistic study, and in line with previous studies, FBT for AN appeared to be an effective and sometimes sufficient intervention, especially for patients with milder weight deficit and less severe psychiatric comorbidities. The results show that FBT can be successfully implemented in Finland and suggest that training more ED clinicians in FBT would be beneficial.

TRIAL REGISTRATION

The study was retrospectively registered on February 8th, 2023, in ClinicalTrials.gov Protocol Registration and Results System, identifier: NCT05734573.

Multidisciplinary implementation of family-based treatment delivered by videoconferencing (FBT-V) for adolescent anorexia nervosa during the COVID-19 pandemic

Family-Based Treatment (FBT)-the most widely supported treatment for pediatric eating disorders-transitioned to virtual delivery in many programs due to COVID-19. Using a blended implementation approach, we systematically examined therapist adherence to key components of FBT and fidelity to FBT by videoconferencing (FBT-V), preliminary patient outcomes, and team experiences with our FBT-V implementation approach as well as familial perceptions of FBT-V effectiveness. We examined our implementation approach across four pediatric eating disorder programs in Ontario, Canada, using mixed methods. Participants included therapists (n = 8), medical practitioners (n = 4), administrators (n = 6), and families (n = 5; 21 family members in total). We developed implementation teams at each site, provided FBT-V training, and offered clinical and implementation consultation. Therapists submitted video recordings of their first four FBT-V sessions for fidelity rating, and patient outcomes. Therapists self-reported readiness, attitudes, confidence, and adherence to FBT-V. Focus groups were conducted with each team and family after the first four sessions of FBT-V. Quantitative data were analyzed using repeated measures ANOVA. Qualitative data were analyzed using directed and summative content analysis. Therapists adhered to key FBT components and maintained FBT-V fidelity. Changes in therapists' readiness, attitudes, and confidence in FBT-V over time were not significant. All patients gained weight. Focus groups revealed implementation facilitators/barriers, positives/negatives surrounding FBT-V training and consultation, suggestions for improvement, and effectiveness attributed to FBT-V. Our implementation approach appeared to be feasible and acceptable. Future research with a larger sample is required, furthering our understanding of this approach and exploring how organizational factors influence treatment fidelity.

Predictors of caregiver burden before starting family-based treatment for adolescent anorexia nervosa and associations with weight gain during treatment

PURPOSE

Caregivers play a pivotal role in the success of family-based treatment (FBT) for anorexia nervosa (AN). Caregiver burden is frequently demonstrated in eating disorders (EDs) and may impact FBT outcomes. This study examined factors associated with caregiver burden before starting FBT and whether pre-treatment caregiver burden was associated with weight gain during FBT.

METHODS

Participants included 114 adolescents with AN or atypical AN (mean age = 15.6 years, SD = 1.4) and a primary caregiver (87.6% mothers) who received FBT in the United States. Before starting treatment, participants completed self-report measures of caregiver burden (via the Eating Disorder Symptom Impact Scale), caregiver anxiety, caregiver depression, and ED symptoms. Clinical characteristics and percentage of target goal weight (%TGW) at FBT session 1 and 3 and 6 months after starting treatment were obtained via retrospective chart review. Hierarchical regressions examined predictors of caregiver burden before FBT initiation. Associations between pre-treatment caregiver burden and %TGW gain at 3 and 6 months after starting FBT were assessed with hierarchical regressions.

RESULTS

Caregiver anxiety (p < 0.001), family history of EDs (p = 0.028), adolescent mental health treatment history (p = 0.024), and ED symptoms (p = 0.042) predicted caregiver burden before starting FBT. Pre-treatment caregiver burden was not associated with %TGW gain at 3 or 6 months. Males demonstrated less %TGW gain than females at 3 months (p = 0.010) and 6 months (p = 0.012).

CONCLUSION

Proactively evaluating caregiver burden before starting FBT is suggested. Providing recommendations and/or referrals for identified caregiver vulnerabilities could indirectly impact FBT progress. Males in FBT could require longer courses of treatment and extra vigilance to this demographic is suggested.

LEVEL OF EVIDENCE

Level III, case-control analytic study.

Understanding outcomes in family-based treatment for adolescent anorexia nervosa: a network approach

BACKGROUND

Family-based treatment (FBT) is the first-line treatment for adolescent anorexia nervosa (AN). Yet, remission is not achieved for about half of adolescents with AN receiving FBT. Understanding patient- and parent-level factors that predict FBT response may inform treatment development and improve outcomes.

METHODS

Network analysis was used to identify the most central symptoms of AN in adolescents who completed the Eating Disorder Examination (EDE) prior to FBT (N = 409). Bridge pathways between adolescent AN and parental self-efficacy in facilitating their child's recovery from AN were identified in a subset of participants (n = 184). Central and bridge symptoms were tested as predictors of early response (⩾2.4 kg weight gain by the fourth session of FBT) and end-of-treatment weight restoration [⩾95% expected body weight (EBW)] and full remission (⩾95% EBW and EDE score within 1 standard deviation of norms).

RESULTS

The most central symptoms of adolescent AN included desiring weight loss, dietary restraint, and feeling fat. These symptoms predicted early response, but not end-of-treatment outcomes. Bridge symptoms were parental beliefs about their responsibility to renourish their child, adolescent discomfort eating in front of others, and adolescent dietary restraint. Bridge symptoms predicted end-of-treatment weight restoration, but not early response nor full remission.

CONCLUSIONS

Findings highlight the prognostic utility of core symptoms of adolescent AN. Parent beliefs about their responsibility to renourish their child may maintain associations between parental self-efficacy and AN psychopathology. These findings could inform strategies to adapt FBT and improve outcomes.

Medical complications and management of atypical anorexia nervosa

Atypical anorexia nervosa (AAN) is a new diagnosis in the 5th edition of the Diagnostic and Statistical Manual. Patients with AAN have been recognized to have similar, if not more severe, medical and psychological complications compared with patients with typical Anorexia Nervosa; yet studies on medical complications and optimal treatment of AAN are lacking. Here we review what is known regarding medical presentation and management of patients with AAN.

Models of care for eating disorders: findings from a rapid review

BACKGROUND

Delayed diagnosis, gaps in services and subsequent delays in specialist care and treatment lead to poorer health outcomes for individuals with eating disorders (EDs) and drive significant government healthcare expenditure. Given the significant disease burden associated with EDs, it is imperative that current implementation research is summarised to identify gaps in care and enable refinement for optimal patient outcomes. This review aimed to provide an updated synthesis on models of care for EDs in developed healthcare systems.

METHODS

This paper was conducted as part of a series of Rapid Reviews (RRs) to be published in a special series in the Journal of Eating Disorders. To provide a current and rigorous review, peer-reviewed articles published in the English language between 2009 and 2021 across three databases (ScienceDirect, PubMed and Ovid/Medline) were searched, with priority given to higher level evidence (e.g., meta-analyses, large population studies, Randomised Control Trials (RCTs)). The current review synthesises data from included studies investigating models of care for people with EDs.

RESULTS

Sixty-three studies (4.5% of the original RR) were identified, which included several diagnostic populations, the most common being Anorexia Nervosa (AN) (30.51%). Across EDs, specialist care was found to improve patient outcomes, with many patients effectively being treated in outpatient or day programs with multi-disciplinary teams, without the need for lengthy inpatient hospitalisation. Few studies investigated the interaction of different ED services (e.g., inpatient, community services, primary care), however stepped care models emerged as a promising approach to integrate ED services in a targeted and cost-effective way. Issues surrounding low treatment uptake, underdiagnosis, long waiting lists and limited hospital beds were also evident across services.

CONCLUSION

Findings suggested further research into alternatives to traditional inpatient care is needed, with partial and shorter 'hospitalisations' emerging as promising avenues. Additionally, to tackle ongoing resource issues and ensure timely detection and treatment of EDs, further research into novel alternatives, such as active waiting lists or a greater role for primary care clinicians is needed. This paper is part of a larger Rapid Review series carried out to guide Australia's National Eating Disorders Research and Translation Strategy 2021-2031. Rapid reviews aim to thoroughly summarise an area of research over a short time period, typically to help with policymaking in this area. This Rapid Review summarises the evidence relating to how we care for people with eating disorders in Western healthcare systems. Topics covered include inpatient/hospital care, residential care, day programs, outpatient/community care, and referral pathways. Findings suggested specialist eating disorder services may enhance detection, referral, and patient care. Stepped care models presented as a cost-effective approach which may help with linkage between different eating disorder services. There was a trend towards shorter hospital stays and approaches which allow for greater connection with the community, such as day programs. Evidence was also found of treatment delays, due to system issues (long waiting lists, lack of accurate assessment and diagnosis) and patient-related barriers (stigma, recognition). Upskilling and involving primary care clinicians in diagnosis and referral as part of a stepped care model may help to address some of these concerns. Further efforts to improve mental health literacy and de-stigmatise help-seeking for eating disorders are needed.

Characterizing changes in obsessive-compulsive symptoms over the course of treatment for adolescent bulimia nervosa

OBJECTIVE

Data suggest that obsessive-compulsive (OC) symptoms are commonly observed in adolescents with eating disorders and predict poorer treatment response. Further, emerging data among adults suggest that changes in OC symptoms relate to changes in eating disorder symptoms across treatment. Given evidence that early invention decreases risk for protracted illness, evaluating processes that may relate to treatment response will be useful in increasing the effectiveness of existing interventions. Therefore, the current investigation explored changes in general and eating disorder-specific OC symptoms throughout family-based treatment (FBT) and cognitive behavioral therapy (CBT) for bulimia nervosa (BN), as well as associations among these changes and eating disorder outcomes at follow-up.

METHOD

Participants (N = 110) received 18 sessions of FBT or CBT and completed measurements of general and eating disorder-specific OC symptoms at baseline, end-of-treatment, and 6- and 12-month follow-up.

RESULTS

Multilevel models indicated that across both treatments, there was no change in general OC symptoms, whereas all eating disorder-related OC symptoms decreased over treatment and follow-up. Exploratory analyses indicated that lower severity in discharge eating-disorder-specific OC symptoms contributed to lower eating pathology at follow-up.

DISCUSSION

Together, findings support the efficacy of both FBT and CBT in helping to reduce eating disorder-specific OC symptoms and suggest that adjunctive intervention may be required for ameliorating general OC symptoms in this population.

PUBLIC SIGNIFICANCE

BN is associated with significant increases in mortality and societal cost, and there is a pressing need for innovations within available treatments for young people with this disorder. In the current study, we explore the extent to which existing evidence-based treatments for adolescent BN are effective in targeting obsessive-compulsive symptoms, a known predictor of treatment response and common co-morbidity in this population.

The efficacy of family treatments for adolescent anorexia nervosa in specialist versus non-specialist settings: protocol for a systematic review and meta-analysis

BACKGROUND

Anorexia nervosa (AN) is often diagnosed in adolescence, and most evidence-based treatments for AN in young people involve the family. Family therapies for AN are intensive, outpatient treatments that utilise the parents as the primary resource in the young person's recovery. Research regarding family treatment for AN is often conducted in specialist settings-with relatively little data reporting the translation of this specialised treatment into real-world, non-specialist settings. This systematic review and meta-analysis aims to determine the efficacy of family treatments for adolescents with AN in specialist settings versus non-specialist settings.

METHODS

This systematic review and meta-analysis will be conducted according to the preferred reporting items for systematic reviews and meta-analyses guidelines. Retrospective cohort studies, pilot studies, case series, randomised controlled trials and qualitative investigations that present original data and investigated the efficacy of family treatments for adolescents with AN in either a specialist or non-specialist setting will be included in the review. Data will be extracted by two reviewers and study quality will be assessed. The primary outcome, change in weight, will be used to determine via meta-analysis and, depending on study heterogeneity, subgroup analysis or meta-regression whether there is a statistically significant subgroup difference between specialist and non-specialist treatment settings. The review will also consider changes in eating disorder symptomology and related constructs.

DISCUSSION

Results from this review will help determine if there is a difference in the efficacy of family treatments for adolescent AN in specialist versus non-specialist treatment settings, primarily in relation to weight recovery. This, in turn, will inform the translation of evidence-based interventions that are generally studied and implemented within specialist centres into the non-specialist health care system.

Weight gain and parental self-efficacy in a family-based partial hospitalization program

BACKGROUND

Family-based treatment (FBT) is an outpatient therapy, though FBT principles have been incorporated in higher levels of care (e.g., partial hospitalization programs, PHPs). It is unknown how participation in a family-based PHP impacts weight restoration and parental self-efficacy.

METHODS

Weight gain and parental self-efficacy were examined in 98 participants with anorexia nervosa or atypical anorexia nervosa during the first five weeks of participation in a family-based PHP. Maternal self-efficacy was assessed using the Parent versus Anorexia Scale.

RESULTS

Significant increases in weight, percent expected body weight (EBW), and maternal self-efficacy were observed, with large effect sizes. During the first five weeks of treatment, patients in the PHP gained an average of 4.5 kg, or 8.3% EBW. Maternal self-efficacy improved within two weeks of treatment.

CONCLUSIONS

Findings suggest that family-based PHPs may facilitate rapid weight restoration without decreasing parental self-efficacy. Randomized trials are needed to directly compare family-based PHPs to outpatient FBT and PHPs with alternate treatment approaches, including longer-term follow-up and cost-effectiveness modeling.

A scoping review of non-specific predictors, moderators, and mediators of family-based treatment for adolescent anorexia and bulimia nervosa: a summary of the current research findings

PURPOSE

This scoping review presents an up-to-date synthesis of the current evidence base for non-specific predictors, moderators, and mediators of family-based treatment (FBT) for adolescent anorexia and bulimia nervosa.

METHODS

We identify ways in which end-of-treatment outcomes have been shown to differ based upon baseline clinical features and person-specific factors and explore psychological mechanisms that may explain differences in treatment response. We draw from this evidence base to outline recommendations for clinical practice, as well as directions for future clinical eating disorder research.

RESULTS

Noted findings from review include that early response in weight gain and parental criticism may be particularly influential in treatment for anorexia nervosa. Further, for adolescents with either anorexia or bulimia nervosa, eating-related obsessionality may be a key intervention target to improve outcomes.

CONCLUSION

In addition to highlighting a need for attention to specific patient- and caregiver-level factors that impact treatment response, recommendations for research and clinical practice include testing whether certain targeted treatments (e.g., exposure-based approaches) may be suitable within the context of FBT for eating disorders.

LEVEL OF EVIDENCE

Level I: Evidence obtained from: at least one properly designed randomized controlled trials; experimental studies.

An exploratory examination of executive functioning as an outcome, moderator, and predictor in outpatient treatment for adults with anorexia nervosa

OBJECTIVE

People with anorexia nervosa often exhibit inefficiencies in executive functioning (central coherence and set shifting) that may negatively impact on treatment outcomes. It is unclear from previous research whether these inefficiencies can change over treatment. We aimed to (1) investigate whether executive functioning can improve over treatment, (2) determine whether baseline executive functioning moderates treatment outcome, and (3) examine whether baseline executive functioning predicts early change (i.e., increase in body mass index over the first 13 weeks of treatment) or remission.

METHOD

We conducted linear mixed model and logistic regression analyses on data from the Strong Without Anorexia Nervosa trial (Byrne et al. in Psychol Med 47:2823-2833, 2017). This study was a randomised controlled trial of three outpatient treatments for people with anorexia nervosa: Enhanced Cognitive Behavioural Therapy, Maudsley Model Anorexia Nervosa Treatment for Adults, and Specialist Supportive Clinical Management.

RESULTS

While set shifting clearly improved from baseline to end of treatment, the results for central coherence were less clear cut. People with low baseline central coherence had more rapid reductions in eating disorder psychopathology and clinical impairment than those with high baseline central coherence. Baseline executive functioning did not predict early change or remission.

DISCUSSION

The detail-focused thinking style commonly observed among people with anorexia nervosa may aid treatment outcomes. Future research that is more adequately powered should replicate this study and examine whether the same pattern of results is observed among people with non-underweight eating disorders.

The five tenets of family-based treatment for adolescent eating disorders

Family-based treatment (FBT) is the leading treatment for adolescent eating disorders and is based on five tenets, or fundamental assumptions: (1) the therapist holds an agnostic view of the cause of the illness; (2) the therapist takes a non-authoritarian stance in treatment; (3) parents are empowered to bring about the recovery of their child; (4) the eating disorder is separated from the patient and externalized; and (5) FBT utilizes a pragmatic approach to treatment. Learning these tenets is crucial to the correct practice and implementation of manualized FBT. The purpose of the current paper is to provide an in-depth overview of these five tenets and to illustrate how they are used in clinical practice. This overview will aid clinicians who are learning FBT.

Gender-based clinical differences in evidence-based treatment for adolescent anorexia nervosa: analysis of aggregated randomized controlled trials

PURPOSE

Boys represent a small proportion of samples in randomized clinical trials (RCT) investigating evidence-based treatment for adolescents with anorexia nervosa (AN). Consequently, knowledge of potential gender differences in clinical characteristics and treatment response in adolescents is considerably limited.

METHODS

Secondary analyses of aggregated data from two RCTs were used to characterize baseline and end-of-treatment clinical features in male and female adolescents with AN (n = 228, 10.53% male). Mixed analyses of variance were used to investigate potential gender differences in treatment response relative to weight outcomes (% median BMI) and eating disorder cognitions (Eating Disorder Examination Global scores; EDE).

RESULTS

There were no significant gender differences in prior inpatient care, illness duration, psychiatric comorbidity, or psychotropic medication use at baseline. Nor were there significant gender differences in binge eating, purging, or driven exercise at baseline or end-of-treatment. Girls reported elevated weight and shape concern compared to boys at baseline but overall reduction in EDE Global scores over the course of treatment did not differ according to gender. Boys gained more relative weight during treatment than girls, but this difference was statistically non-significant.

CONCLUSION

Overall findings do not suggest significant differences in treatment outcome relative to weight or ED cognitions, by gender. Current evidence suggests that, with the exception of shape and weight concerns, boys present with cognitive and behavioral symptoms as severe as their female counterparts which underscores the need for increased accuracy in assessment of these disorders in boys and young men.

LEVEL OF EVIDENCE

Level 1, secondary data analysis of randomized controlled trials.

Findings from a web content analysis of resources targeting sporting coaches aimed at educating or upskilling on eating disorders and disordered eating in athletes

BACKGROUND

Eating disorders (ED) and disordered eating (DE) are highly prevalent in athletes. Coaches can play a role in the prevention of EDs and DE behaviours and are well placed to support athletes with an ED. However, coaches feel under-qualified and lack time and resources for supporting athletes and it is unclear the quality of training and resources available to upskill coaches in this space. Therefore, a web-based content analysis was undertaken to determine the type and source of online education resources currently available to coaches to help identify, prevent, manage and refer on for ED/DE behaviours.

METHODS

Three major search engines were searched using a combination of the following terms: (1) DE or ED resource and (2) coaches or sport. Included websites were specific for DE/EDs in athletes; targeted at coaches or sporting organisations; written in the English language; and published by a reputable site.

RESULTS

Twenty four out of 600 websites met inclusion criteria. The main reasons for exclusion were irreputable sites and websites not targeting coaches. The majority of included webpages were from professional bodies (n = 17) and targeted coaches (n = 24) and sporting organisations (n = 15), with an average quality rating of 4.2 out of 6. All websites provided educational resources but none provided official training. The most common topics discussed on these websites was ED/DE signs and symptoms (n = 17), and the effects of ED/DE on performance, mental and physical health (n = 11).

CONCLUSION

Few reputable online resources were identified in the current review. There is a need for more comprehensive education and training resources aimed at coaches and athletic organisations to help prevent, identify, manage and refer on for ED/DE behaviours.

Family-based treatment for adolescent anorexia nervosa: Outcomes of a stepped-care model

OBJECTIVE

Stepped-care models of treatment are underexplored in eating disorders. To enhance treatment outcomes, and informed by literature about adaptations to family-based treatment (FBT), we developed an FBT-based stepped-care model for adolescents with anorexia nervosa (AN) that was consistent with family preference (i.e., tailored) and responsive to adolescent needs (i.e., intensity). The aim of this study was to evaluate the effectiveness of this model in terms of remission at end-of-treatment.

METHOD

Adolescents (N = 82), aged 12-18 years (M = 15.1, SD = 1.8) and meeting Diagnostic and Statistical Manual of Mental Disorders 5th Edition criteria for AN, were assessed at baseline, Weeks 24 and 48. FBT was tailored to family preference and clinical need, with 16-18 sessions by Week 24. This was followed by three FBT booster sessions or an extension of FBT plus booster sessions (Week 48). The primary outcome was defined as weight > 95% of %median body mass index plus within 1 SD of the Eating Disorder Examination (EDE) global score community norms.

RESULTS

Remission rates were 45.1% and 52.4% at Weeks 24 and 48, respectively. Commensurable improvements were evident across secondary outcomes (e.g., EDE subscale scores). As a reference point, remission rates compared positively with results from a recent randomized clinical trial from the same center and at the same time points (Week 24:45.1% vs. 32.1% and Week 48:52.4% vs. 30.2%). Controlling for propensity score, no statistically significant differences were observed.

DISCUSSION

This stepped-care model, designed to be responsive to the individual needs of adolescents and their families, achieved encouraging rates of remission. This study provides an important signal that supports future clinical trials of stepped-care models for adolescents with AN.

An evaluation of family-based treatment for restrictive-type eating disorders, delivered as standard care in a public mental health service

BACKGROUND

Family-based treatment (FBT) has demonstrated efficacy for anorexia nervosa (AN) in youth in randomized, controlled trials. It is important to assess if it shows a similar effectiveness when implemented in standard care.

AIM

To evaluate outcomes of FBT for restrictive-type eating disorders, delivered as standard care in a public mental health service. Outcomes are remission, frequency of hospital admissions and day-patient treatment, and frequency of other adaptations within 12 months from commencement of treatment. Second, to compare the collaborative clinical decisions of successful treatment in standard care made by family therapist at the end of treatment, with more objective definitions of recovery.

METHODS

The design is a prospective, uncontrolled study of a consecutive series of patients with restrictive-type eating disorders, treated with FBT in a specialty unit at the Child and Adolescent Mental Health Centre in the Capital Region of Denmark.

RESULTS

FBT was successfully completed within 12 months by 57% of participants, and 47% completed with 20 sessions or fewer. Weight restoration was achieved by 75% within 12 months, and 46% achieved both normalisation of body weight and behavioural symptoms of AN within 12 months. A total of 20% needed intensified treatment. All aspects of remission were often not present simultaneously, and the collaborative clinical decisions of successful treatment only partly aligned with other parameters of remission.

CONCLUSION

FBT showed good results when implemented as standard care, and it can be adapted to the specifics of local service organisation without compromising effectiveness.

Rescripting-A grounded theory study of the contribution that fathers make to Family-Based Treatment when a young person has anorexia nervosa

AIM

To present a grounded theory of the contribution that fathers make to family-based treatment when a young person has anorexia nervosa.

BACKGROUND

Research indicates a potential to improve outcomes by involving both parents in the treatment of anorexia nervosa. However, fathers are underrepresented both within treatment and research. Family-based treatment requiring the involvement of both parents presents an opportunity to better understand the role of the father in treatment.

DESIGN

Classic grounded theory.

METHODS

Individual interviews conducted with fifteen fathers involved in family-based treatment. The COREQ checklist was followed.

RESULTS

Fathers valued being involved in family-based treatment and felt they had an important contribution to make. The analysis captures the overall contribution that fathers make and the impact of their involvement. Four categories; Being on the Outside, Finding a Way In, Finding a Way to Be and Finding a Way to Let Go and one core category Repositioning were generated from the data. A substantive theory of Rescripting, generated from categories and the core category, describes the way that participating in family-based treatment changes fathers and their role.

CONCLUSIONS

Fathers make an important and significant contribution to family-based treatment when a young person has anorexia nervosa. The findings inform clinicians about the importance of including fathers in the treatment of young people with anorexia nervosa. They highlight the importance of incorporating support mechanisms into family-based treatment to harness and maximise the paternal contribution.

RELEVANCE TO CLINICAL PRACTICE

Paternal contribution to family-based treatment can be maximised to improve outcomes for young people with anorexia nervosa.

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.

Brief early adolescent multi-family therapy (BEAM) trial for anorexia nervosa: a feasibility randomized controlled trial protocol

INTRODUCTION

Multi-family therapy (MFT) is a recommended treatment for adolescent anorexia nervosa internationally. Despite recent significant advances in single-family therapy, the evidence base for MFT remains relatively small. Several individual and family factors have been associated with poorer outcomes in single-family therapy, many of which may be addressed or ameliorated by MFT if delivered early in treatment. This trial aims to determine the feasibility and acceptability of adding a five-day multi-family therapy group to the early stages of family therapy for anorexia nervosa. Secondary objectives are to explore effect size changes in key individual and family factors across treatment.

METHODS

This feasibility trial will use a randomised controlled design. Sixty adolescents (age 10-17 inclusive) with anorexia nervosa or atypical anorexia nervosa and their parents will be recruited from a community-based specialist eating disorder service in London, UK. Participants will be randomly allocated to receive six months of eating disorder focussed family therapy with a five-day MFT group (experimental group) or without (control group). Block randomisation will be conducted by the King's Clinical Trials Unit and researchers will be blind to participants' intervention allocation. Feasibility, acceptability and secondary outcomes measures will be collected at baseline, post-MFT, end of treatment, six-month and 12-month follow-up. Feasibility and acceptability will be assessed according to trial sign-up rates, retention, measure completion rates and satisfaction. Secondary outcomes include physical health improvements, changes in psychiatric symptoms, emotion regulation and reflective function capacity, expressed emotion, parental difficulties and therapeutic alliance. Descriptive data and exploration analysis of trends and effect sizes will be reported upon at trial completion.

DISCUSSION

The five-day MFT program developed for this study is novel, brief and more accessible than previous MFT models. The inclusion of a data collection point during treatment and follow-up will allow for an investigation of trends during and after treatment. This will allow exploration and comparison of future potential mediators and moderators of MFT and FT-AN outcomes and how these may differ between treatments.

TRIAL REGISTRATION

ISRCTN registry; ISRCTN93437752 , on 27 January 2021.

Restrictive Eating Disorders: Accelerating Treatment Outcomes in the Medical Hospital

Pediatric patients with anorexia nervosa and atypical anorexia nervosa may present to hospitals with significant vital sign instability or serum laboratory abnormalities necessitating inpatient medical hospitalization. These patients require specialized care, numerous resources, and interdisciplinary collaboration during what can be a protracted admission. Recent evidence informs areas in which care can be accelerated, and published protocols from major children's hospitals are helpful roadmaps to creating a streamlined hospitalization. In our narrative review, we focused on 3 key areas: (1) implementation of a rapid nutritional rehabilitation program; (2) assessment and management of the refeeding syndrome; and (3) early integration of psychoeducation and therapeutic interventions during inpatient hospitalization. A practical review of the literature in these 3 areas will give concrete, actionable information to pediatric hospitalists as they care for young people with restrictive eating disorders.

Rapid response is predictive of treatment outcomes in a transdiagnostic intensive outpatient eating disorder sample: a replication of prior research in a real-world setting

OBJECTIVE

There is a growing call to identify specific outcome predictors in real-world eating disorder (ED) treatment settings. Studies have implicated several ED treatment outcome predictors [rapid response (RR), weight suppression, illness duration, ED diagnosis, and psychiatric comorbidity] in inpatient settings or randomized controlled trials of individual outpatient therapy. However, research has not yet examined outcome predictors in intensive outpatient programs (IOP). The current study aimed to replicate findings from randomized controlled research trials and inpatient samples, identifying treatment outcome predictors in a transdiagnostic ED IOP sample.

METHOD

The current sample comprised 210 consecutive unique IOP patient admissions who received evidence-based ED treatment, M(SD)_Duration = 15.82 (13.38) weeks. Weekly patient measures of ED symptoms and global functioning were obtained from patients' medical charts.

RESULTS

In relative weight analysis, RR was the only significant predictor of ED symptoms post treatment, uniquely accounting for 45.6% of the predicted variance in ED symptoms. In contrast, baseline ED pathology was the strongest unique predictor of end-of-treatment global functioning, accounting for 15.89% of predicted variance. Baseline factors did not differentiate patients who made RR from those who did not.

CONCLUSIONS

Consistent with findings in more controlled treatment settings, RR remains a robust predictor of outcome for patients receiving IOP-level treatment for EDs. Future work should evaluate factors that mediate and moderate RR, incorporating these findings into ED treatment design and implementation.

LEVEL OF EVIDENCE

Level IV, uncontrolled intervention.

Intolerance of Uncertainty and Eating Disorder Symptoms Over the Course of Intensive Treatment

There is a critical need to identify processes that may influence outcome in existing treatments for eating disorders (EDs). Intolerance of uncertainty (IU), which refers to excessive distress regarding uncertain situations, is a well-established feature of anxiety disorders. Emerging work suggests that IU decreases over the course of cognitive-behavioral treatments and may relate to better treatment outcomes. As some literature has suggested IU may functionally maintain ED symptoms, testing whether changes in IU over treatment relate to outcome may result in the identification of novel treatment targets. This study aimed to build upon past work documenting links between IU and ED symptoms by exploring changes in IU over treatment and links between early change in IU (1-month) and discharge symptoms. Participants (N = 274) receiving partial hospitalization treatment completed the Eating Pathology Symptoms Inventory and Intolerance of Uncertainty Scale at admission, 1-month post-admission, and discharge. Results suggested that IU significantly reduced from admission to discharge and that reductions in IU scores from admission to 1-month related to cognitive restraint, dietary restriction, and body image at discharge. However, this pattern did not hold for exercise, binge eating, or purging. Altogether, these results replicate past work supporting IU as a common feature across ED diagnoses and provide initial data suggesting that targeting IU early in treatment may enhance treatment outcomes.

Can adolescents with eating disorders be treated in primary care? A retrospective clinical cohort study

BACKGROUND

Family-Based Treatment (FBT) is considered the first-line intervention for adolescent anorexia nervosa. However, access to this treatment is limited. Treatment programs for other pediatric mental health conditions have successfully overcome barriers to accessing evidence-based intervention by integrating mental health services into primary care. This study evaluated the proof-of-concept of a novel modification of FBT, Family-Based Treatment for Primary Care (FBT-PC) for adolescent restrictive eating disorders designed for delivery by primary care providers in their practices.

METHODS

This retrospective clinical cohort study evaluated 15 adolescents with restrictive eating disorders receiving FBT-PC and 15 adolescents receiving standard FBT. We examined improvement in BMI percentile, reduction in weight suppression, and clinical benchmarks of eating disorder recovery including weight restoration to > 95% of expected body weight (EBW) and resolution of DSM-5 criteria for eating disorders.

RESULTS

In both groups, effect sizes for increased BMI percentile exceeded Cohen's convention for a large effect (FBT-PC: d = .94; standard FBT: d = 1.15) as did effect sizes for reduction in weight suppression (FBT-PC: d = 1.83; standard FBT: d = 1.21). At the end of treatment, 80% of the FBT-PC cohort and 87% in the standard FBT group achieved > 95%EBW and 67% in the FBT-PC group and 60% in the standard FBT group no longer met DSM-5 criteria for an eating disorder. There were no cohort differences in the number of treatment drop-outs or referrals to a more intensive level of eating disorder treatment.

CONCLUSIONS

Findings suggest that primary care providers have potential to improve weight and clinical status in adolescents with restrictive eating disorders. Based on these results, more rigorous testing of the FBT-PC model is warranted.

Adapting and adopting highly specialized pediatric eating disorder treatment to virtual care: a protocol for an implementation study in the COVID-19 context

BACKGROUND

The COVID-19 pandemic has negatively impacted individuals with eating disorders; resulting in increased symptoms, as well as feelings of isolation and anxiety. To conform with social distancing requirements, outpatient eating disorder treatment in Canada is being delivered virtually, but a lack of direction surrounding this change creates challenges for practitioners, patients, and families. As a result, there is an urgent need to not only adapt evidence-based care, including family-based treatment (FBT), to virtual formats, but to study its implementation in eating disorder programs. We propose to study the initial adaptation and adoption of virtual family-based treatment (vFBT) with the ultimate goal of improving access to services for youth with eating disorders.

METHODS

We will use a multi-site case study with a mixed method pre/post design to examine the impact of our implementation approach across four pediatric eating disorder programs. We will develop implementation teams at each site (consisting of therapists, medical practitioners, and program administrators), provide a remote training workshop on vFBT, and offer ongoing consultation during the initial implementation phase. Therapists will submit videorecordings of their first four vFBT sessions. We propose to study our implementation approach by examining (1) whether the key components of standard FBT are maintained in virtual delivery measured by therapist self-report, (2) fidelity to our vFBT model measured by expert fidelity rating of submitted videorecordings of the first four sessions of vFBT, (3) team and patient/family experiences with vFBT assessed with qualitative interviews, and (4) patient outcomes measured by weight and binge/purge frequency reported by therapists.

DISCUSSION

To our knowledge, this is the first study to evaluate an implementation strategy for virtually delivered FBT for eating disorders. Challenges to date include confirming site participation and obtaining ethics approval at all locations. This research is imperative to inform the delivery of vFBT in the COVID-19 context. It also has implications for delivery in a post-pandemic era where virtual services may be preferable to patients and families living in remote locations, where access to specialized services is extremely limited.

TRIAL REGISTRATION

ClinicalTrials.gov NCT04678843 , registered on December 21, 2020.

Higher-Calorie Refeeding in Anorexia Nervosa: 1-Year Outcomes From a Randomized Controlled Trial

BACKGROUND AND OBJECTIVES

We recently reported the short-term results of this trial revealing that higher-calorie refeeding (HCR) restored medical stability earlier, with no increase in safety events and significant savings associated with shorter length of stay, in comparison with lower-calorie refeeding (LCR) in hospitalized adolescents with anorexia nervosa. Here, we report the 1-year outcomes, including rates of clinical remission and rehospitalizations.

METHODS

In this multicenter, randomized controlled trial, eligible patients admitted for medical instability to 2 tertiary care eating disorder programs were randomly assigned to HCR (2000 kcals per day, increasing by 200 kcals per day) or LCR (1400 kcals per day, increasing by 200 kcals every other day) within 24 hours of admission and followed-up at 10 days and 1, 3, 6, and 12 months post discharge. Clinical remission at 12 months post discharge was defined as weight restoration (≥95% median BMI) plus psychological recovery. With generalized linear mixed effect models, we examined differences in clinical remission over time.

RESULTS

Of 120 enrollees, 111 were included in modified intent-to-treat analyses, 60 received HCR, and 51 received LCR. Clinical remission rates changed over time in both groups, with no evidence of significant group differences (P = .42). Medical rehospitalization rates within 1-year post discharge (32.8% [19 of 58] vs 35.4% [17 of 48], P = .84), number of rehospitalizations (2.4 [SD: 2.2] vs 2.0 [SD: 1.6]; P = .52), and total number of days rehospitalized (6.0 [SD: 14.8] vs 5.1 [SD: 10.3] days; P = .81) did not differ by HCR versus LCR.

CONCLUSIONS

The finding that clinical remission and medical rehospitalization did not differ over 1-year, in conjunction with the end-of-treatment outcomes, support the superior efficacy of HCR as compared with LCR.

Enhanced cognitive behavior therapy for severe and extreme anorexia nervosa: An outpatient case series

OBJECTIVE

The study aimed to assess outcomes in patients with severe and extreme anorexia nervosa managed with enhanced cognitive behavior therapy (CBT-E) in a real-world outpatient setting.

METHOD

Thirty patients with anorexia nervosa and body mass index (BMI) <16 aged ≥17 years were recruited from consecutive referrals to an eating disorder service clinic offering outpatient CBT-E. BMI and Eating Disorder Examination Questionnaire (EDE-Q), Brief Symptom Inventory (BSI), and Clinical Impairment Assessment (CIA) scores were recorded at admission, end of treatment, and 20- and 60-week follow-ups for treatment completers.

RESULTS

Twenty patients (66.7%) completed the treatment and showed both considerable weight gain (Cohen's f = 1.43), and significantly reduced scores for clinical impairment (f = 1.26) and eating-disorder (f = 1.03) and general psychopathology (f = 0.99). Changes remained stable at both follow-ups. About half of the patients who completed treatment had a BMI ≥18.5 at the end of treatment and follow-ups.

DISCUSSION

CBT-E seems suitable and promising for patients with severe and extreme anorexia nervosa seeking treatment in a real-world clinical setting, provided that their medical conditions are stable, and they have no current major depressive episodes or substance abuse; it may represent a valid alternative to inpatient treatment for those who are able to sustain engagement in a full course of outpatient treatment.

Assessing fidelity to family-based treatment: an exploratory examination of expert, therapist, parent, and peer ratings

INTRODUCTION

Fidelity is an essential component for evaluating the clinical and implementation outcomes related to delivery of evidence-based practices (EBPs). Effective measurement of fidelity requires clinical buy-in, and as such, requires a process that is not burdensome for clinicians and managers. As part of a larger implementation study, we examined fidelity to Family-Based Treatment (FBT) measured by several different raters including an expert, a peer, therapists themselves, and parents, with a goal of determining a pragmatic, reliable and efficient method to capture treatment fidelity to FBT.

METHODS

Each therapist audio-recorded at least one FBT case and submitted recordings from session 1, 2, and 3 from phase 1, plus one additional session from phase 1, two sessions from phase 2, and one session from phase 3. These submitted files were rated by an expert and a peer rater using a validated FBT fidelity measure. As well, therapists and parents rated fidelity immediately following each session and submitted ratings to the research team. Inter-observer reliability was calculated for each item using the intraclass correlation coefficient (ICC), comparing the expert ratings to ratings from each of the other raters (parents, therapists, and peer). Mean scale scores were compared using repeated measures ANOVA.

RESULTS

Intraclass correlation coefficients revealed that agreement was the best between expert and peer, with excellent, good, or fair agreement in 7 of 13 items from session 1, 2 and 3. There were only four such values when comparing expert to parent agreement, and two such values comparing expert to therapist ratings. The rest of the ICC values indicated poor agreement. Scale level analysis indicated that expert fidelity ratings for phase 1 treatment sessions scores were significantly higher than the peer ratings and, that parent fidelity ratings tended to be significantly higher than the other raters across all three treatment phases. There were no significant differences between expert and therapist mean scores.

CONCLUSIONS

There may be challenges inherent in parents rating fidelity accurately. Peer rating or therapist self-rating may be considered pragmatic, efficient, and reliable approaches to fidelity assessment for real-world clinical settings.

Implementation of family-based treatment for Asian adolescents with anorexia nervosa: A consecutive cohort examination of outcomes

OBJECTIVE

This study describes the implementation of family-based treatment (FBT) in an eating disorder program in Asia as well as clinical outcomes of Asian adolescents with anorexia nervosa (AN) treated with FBT.

METHOD

This retrospective consecutive cohort study of 147 Asian adolescents with AN was compared between those in FBT (n = 65) versus treatment as usual (TAU) (n = 82). Variables associated with weight restoration were analyzed between groups.

RESULTS

Participants' mean age was 14.2 (SD = 1.5) years and 93% were female. Mean presenting %mBMI was 74.0 (SD = 7.8) and average illness duration was 7.7 (SD = 6.1) months. The two groups' baseline characteristics were not significantly different. Weight restoration rates in the FBT group were significantly higher than the TAU group at 6-, 12-, and 24-month time points. A linear mixed model showed the mean %mBMI was significantly higher at 0, 6, 12, and 24 months in the FBT group. The median time to weight restoration for patients on FBT was shorter (FBT: 7.0 months, TAU: 19.0 months; 95% CI [14.5, 23.5] χ² = 15.84, p < .001). Within the FBT group, those that completed ≥9 FBT sessions had significantly higher rates of weight restoration at 12 months. Across all participants, those with a lower starting %mBMI were less likely to achieve weight restoration by 12 months.

CONCLUSION

FBT can be effectively implemented in a multidisciplinary eating disorder program managing Asian adolescents with AN with improved rates of weight restoration. Further research is needed to understand the predictors and moderators of remission using FBT in Asian adolescents with AN.

Identification and Management of Eating Disorders in Children and Adolescents

Eating disorders are serious, potentially life-threatening illnesses afflicting individuals through the life span, with a particular impact on both the physical and psychological development of children and adolescents. Because care for children and adolescents with eating disorders can be complex and resources for the treatment of eating disorders are often limited, pediatricians may be called on to not only provide medical supervision for their patients with diagnosed eating disorders but also coordinate care and advocate for appropriate services. This clinical report includes a review of common eating disorders diagnosed in children and adolescents, outlines the medical evaluation of patients suspected of having an eating disorder, presents an overview of treatment strategies, and highlights opportunities for advocacy.

Translating evidence-based treatment for digital health delivery: a protocol for family-based treatment for anorexia nervosa using telemedicine

BACKGROUND

Family-based treatment (FBT) is an efficacious outpatient intervention for young people diagnosed with Anorexia Nervosa (AN). To date, treatment to protocol has relied on standard face-to-face delivery. Face-to-face therapy is subject to geographic, temporal and human factors, rendering it particularly susceptible to inequities and disruption. This has resulted in poorer service provision for rural and regional families, and recently a significant challenge to providing face-to-face services during the COVID-19 global pandemic. The present study examines whether FBT for AN can be successfully translated to a digital delivery platform to address these access issues.

METHOD

Forty young people aged 12 to 18 years who meet DSM-5 diagnostic criteria for AN, and live in a rural or regional setting, will along with their family be recruited to the study. Trained therapists will provide 18 sessions of FBT over 9 months via telemedicine to the home of the young person and their family. The analysis will examine treatment effectiveness, feasibility, acceptability, and cost-effectiveness.

DISCUSSION

The study addresses the treatment needs of families not able to attend face-to-face clinical services for evidence-based treatment for eating disorders. This might be due to several barriers, including a lack of local services or long travel distances to services. There has been a recent and unprecedented demand for telemedicine to facilitate the continuity of care during COVID-19 despite geographical circumstances. If delivering treatment in this modality is clinically and economically effective and feasible, it will facilitate access to potentially lifesaving, evidence-based treatments for families formerly unable to access such care and provide evidence for the continuity of services when and where face-to-face treatment is not feasible.

Early predictors of treatment outcome in a partial hospital program for adolescent anorexia nervosa

OBJECTIVE

Previous research supports the relevance of early symptom change in eating disorder (ED) treatment; however, few studies have distinguished early weight change from early change in ED psychopathology, particularly in higher levels of care. Thus, the present study examined whether early change in weight and ED psychopathology predicted outcome for adolescents with anorexia nervosa (AN) in a partial hospitalization program.

METHOD

Adolescents with AN (n = 99) completed assessments at admission, 1-month after treatment admission, discharge, and 6-month follow-up.

RESULTS

Higher admission percent expected body weight (%EBW), greater early change in %EBW, longer duration of treatment, shorter length of illness, and earlier age of onset predicted greater change in %EBW at discharge, but not follow-up. Greater ED psychopathology at admission and greater early change in ED psychopathology predicted later change in ED symptoms at discharge, but not follow-up. Neither early change in %EBW nor ED psychopathology predicted likelihood of remission at discharge and follow-up.

DISCUSSION

Results support the importance of early change in predicting later change in the same ED outcome variables and suggest that early change in both %EBW and ED psychopathology in adolescents may be an important area for future research.

Outpatient therapy for adult anorexia nervosa: Early weight gain trajectories and outcome

OBJECTIVE

The purpose of the study was to identify latent classes of trajectory of change in body mass index (BMI) between the initial and thirteenth session of outpatient treatment for adult anorexia nervosa and identify the association with outcome.

METHOD

Participants (n = 120) were randomised to one of three outpatient therapies.

RESULTS

Four latent classes were identified; two classes (higher, rapid and higher, moderate) had BMI > 17 kg/m² at initial assessment, and both gained significantly more weight over the 13 sessions compared to the other two classes. The third and fourth classes (middle, stable and low, stable) had an initial BMI of 16.44 and 15.31, respectively, and neither gained weight over the first 13 sessions. Compared to the other three classes, the higher, rapid class (N = 19, 16%) showed a significantly greater BMI increase over the first 13 sessions of therapy and a significantly higher rate of remission at end of treatment and 12-month follow-up (18-22 months post-randomisation).

CONCLUSIONS

The group with the greatest early weight gain had significantly higher levels of remission. Higher BMI at baseline without substantial early weight gain was insufficient to produce higher levels of remission than those with lower weight at baseline.

Risk factors for a low weight gain in the early stage of adolescent anorexia nervosa inpatient treatment: findings from a pilot study

PURPOSE

Body weight restoration is a major treatment aim in juvenile inpatients with anorexia nervosa (AN) (i.e., 500-1000 g/week according to the German guidelines). Several studies suggest the early weight gain to be crucial for remission. The identification of patients at risk of a low early weight gain could enable an adequate adaptation of treatment. Thus, we aimed at detecting risk factors of a low weight gain during inpatient treatment.

METHODS

The presented work analyzes data from a pilot study in 30 female adolescent inpatients with AN (restricting subtype; age range at admission: 12.6-17.6 years). Premorbid characteristics, history of symptomatology, anthropometric data, and eating-disorder psychopathology were compared between those who gained at least an average of 500 g/week during the first 7 weeks of treatment (high weight gainers, HWG) and those who did not (low weight gainers, LWG).

RESULTS

At admission, LWG (n = 15) had a significantly higher BMI(-SDS) and scored significantly higher in the eating-disorder examination questionnaire (EDE-Q) than HWG (n = 15). A logistic regression analysis indicated both parameters to be independently associated with a low weight gain.

CONCLUSION

Higher EDE-Q scores seem to be a major risk factor for a low weight gain at the beginning of treatment. Moreover, a higher BMI(-SDS) at admission does not necessarily indicate a less severe AN symptomatic, as it was associated with a lower weight gain in our sample during the first 7 weeks of treatment. Reassessment of our results in larger studies is required to draw firm conclusions for clinical practice.

LEVEL OF EVIDENCE

Level V.

Family-based treatment via videoconference: Clinical recommendations for treatment providers during COVID-19 and beyond

The necessity to employ distance-based methods to deliver on-going eating disorder care due to the novel coronavirus (COVID-19) pandemic represents a dramatic and urgent shift in treatment delivery. Yet, TeleHealth treatments for eating disorders in youth have not been adequately researched or rigorously tested. Based on clinical experience within our clinic and research programs, we aim to highlight the common challenges clinicians may encounter in providing family-based treatment (FBT) via TeleHealth for children and adolescents with anorexia nervosa and bulimia nervosa. We also discuss possible solutions and offer practical considerations for providers delivering FBT in this format. Additional research in TeleHealth treatment for eating disorders in youth may lead to improved access, efficiency, and effectiveness of FBT delivered via videoconferencing.

Anorexia nervosa in adolescents

Anorexia nervosa is an eating disorder with peak onset in adolescence, which carries the highest mortality rate of all psychiatric illnesses. It is commonly comorbid with other physical and mental health problems, yet training on management of people with eating disorders and working knowledge of clinicians working with underweight adolescents is inconsistent. This review of anorexia nervosa in adolescents provides an overview of the presentation, aetiology and treatment of this disorder, with a particular focus on the assessment and management of physical health risks, including refeeding syndrome.