The buffet challenge: a behavioral assessment of eating behavior in adolescents with an eating disorder.

OBJECTIVE: Eating disorders are characterized by disturbances in nutritional intake and abnormal mealtime behaviors. Laboratory eating paradigms offer a unique opportunity to accurately measure dietary intake and eating behaviors, however, these studies have predominantly occurred in adults. This paper describes the development and preliminary psychometric examination of the Buffet Challenge, a laboratory-based meal task for youths with an eating disorder. METHOD: We recruited and assessed 56 participants as part of a randomized controlled trial of Family-Based Treatment for adolescents with anorexia nervosa. Adolescents completed the Buffet Challenge at baseline, midway through treatment (~ week 16 of a 6 months course), and end of treatment. Participants and their parents also reported eating disorder symptomatology and treatment related variables of interest were recorded. RESULTS: All adolescents were willing to complete the Buffet Challenge at all time points, although one refused to give up their cellphone, and there were no significant adverse events recorded. Preliminary results are presented. CONCLUSIONS: Our initial pilot of this task in adolescents with anorexia nervosa demonstrates its acceptability, although investigation of our hypotheses was hindered by significant missing data due to COVID-related research shutdowns. Future studies should replicate procedures in a larger sample to ensure analyses are adequately powered.

Clinical characterization of Co-morbid autoimmune disease and eating disorders: a retrospective chart review.

Research suggests a link between autoimmune illnesses (AI) and eating disorders (ED). We retrospectively reviewed charts of adolescent patients presenting for eating disorder treatment. We compared the presentation and treatment course for those with an ED and comorbid AI [with (GI-AI, N = 59) or without (non-GI, N = 21) gastrointestinal inflammation] with matched ED-only cases. The sample was overwhelmingly female, with an average age of 15.40. Weight gain trajectories differed across groups, with similar rates of weight gain between controls and non GI-AI cases and with a lower rate of weight gain for individuals with comorbid GI-AI. Over half (56%) of patients reported an AI diagnosis prior to ED; 38% reported an AI diagnosis following ED, and 6% reported ED and AI simultaneous diagnosis. On presentation, ED-only controls had higher rates of comorbid anxiety than cases in either AI group, while those with non-GI AI were more likely to report depression. Mean total GI symptoms, % goal weight at presentation, vital sign instability, and markers of refeeding syndrome did not differ across groups. Health care professionals treating patients with either condition should have a low threshold for asking additional questions to identify the presence of the other condition.

Post-traumatic stress symptoms in parents of adolescents hospitalized with Anorexia nervosa.

The current study was a planned secondary analysis to examine post-traumatic stress symptoms (PTSS) in parents of youth hospitalized for medical stabilization due to anorexia nervosa (AN). Questionnaires were administered to 47 parents (34 mothers, 13 fathers; 10 parental dyads) after admission; follow-up occurred at discharge and 4 weeks, 3 months, and 6 months post-discharge. PTSS were present in the majority of mothers (55.9%) and fathers (61.5%). PTSS were not associated with illness severity, but were associated with parental report of mood symptoms, avoidance, inflexibility, and symptom accommodation. Parental PTSS may negatively impact the adolescent rate of weight gain post-discharge. As hospitalization of a child for medical management of AN can be a traumatizing experience for parents, astute attention should be paid by medical staff to their needs. More work needs to be done to understand the impact of PTSS on parents of adolescents with AN.

Cultural shifts in the symptoms of Anorexia Nervosa: The case of Orthorexia Nervosa.

Orthorexia Nervosa (ON) is a term describing a fixation on food purity, involving ritualized eating patterns and a rigid avoidance of "unhealthy foods." Those self-identified as having ON tend to focus on food composition and feel immense guilt after eating food deemed "unhealthy." Although not formally recognized as a psychiatric disorder by the fifth edition of the Diagnostic and Statistical Manual of Mental Disorders (DSM-5), ON has received increasing attention since its identification in 1997. There is ongoing work to establish diagnostic and empirical tools for measuring ON; embedded in this is the question as to whether or not ON is a new eating disorder. In this paper, we argue ON is not a new psychiatric disorder but rather a new cultural manifestation of anorexia nervosa (AN). We begin by providing an overview of historical representations and classification of eating disorders, with a specific focus on AN. This is followed by discussion of the rise in diet culture and healthism since the 19th century. We conclude by examining the diagnostic validity and utility of ON through a discussion of empirical evidence. Classifying ON under the diagnostic umbrella of AN may improve our understanding of factors underlying restrictive eating behaviors.

To meat or not to meat: disordered eating and vegetarian status in university students.

PURPOSE: This study sought to examine associations between meat-restricted diets and disordered eating cognitions and behaviors in a large sample of university students and assess the relationships between motivations for choosing a vegetarian or semi-vegetarian diet and eating patterns. METHODS: University students (n = 1585; 60%F, 40%M, mean age 20.9) completed an online survey; students were categorized into vegetarians, semi-vegetarians, and non-vegetarians. Vegetarians and semi-vegetarians were sub-categorized into groups: those who cited weight or health among their reasons for adopting the diet and those who reported other reasons (e.g., religion). Outcomes were Eating Disorder Examination Questionnaire (EDE-Q) scores and rates of disordered eating behaviors. RESULTS: Vegetarians comprised 8.6% (32M, 104F) and semi-vegetarians comprised 3.2% (6M, 45F) of the sample; 25% of vegetarians (n = 34) and 65% of semi-vegetarians (n = 33) chose the diet for weight or health-related reasons. Semi-vegetarians scored the highest on measures of eating disorder cognitions and were the most likely to report engaging in disordered eating behaviors, with vegetarians at intermediate risk and non-vegetarians the least likely to report disordered cognitions or behaviors. Semi-vegetarians adopting the diet for reasons of weight or health were at especially high risk compared to other semi-vegetarians, while no associations were found between motivations for adopting a vegetarian diet and disordered eating patterns. CONCLUSION: Semi-vegetarians, especially those adopting the diet for reasons of weight or health, are more likely to exhibit disordered eating cognitions and behaviors compared to vegetarians and non-vegetarians. LEVEL OF EVIDENCE: Level III, cohort study.

The shifting perspectives study protocol: Cognitive remediation therapy as an adjunctive treatment to family based treatment for adolescents with anorexia nervosa.

BACKGROUND: Adolescents with anorexia nervosa have set-shifting inefficiencies that can be exacerbated by starvation and that may interfere with outcomes of treatment interventions. Cognitive Remediation Therapy (CRT), an adjunctive treatment focused on improving set-shifting, can target inefficiencies and may augment treatment effectiveness. The best way to add CRT to the standard of care (Family Based Treatment, FBT) for adolescents with anorexia remains understudied. METHODS/DESIGN: This is a randomized controlled trial designed to determine if CRT is effective in increasing flexibility in adolescents with anorexia and/or their parents. Participants are adolescents 12-18 years old with anorexia and their parents. 54 family groups will be randomized into one of three groups: FBT only, FBT plus Parent-focused CRT, or FBT plus Adolescent-focused CRT. Psychosocial, neurocognitive, and behavioral measures will be collected throughout the study. DISCUSSION: This is the first study of its kind to apply CRT to parents. All forms of CRT in the context of anorexia have targeted the individual with anorexia's thinking style. We propose that it may be impactful to target the parent of the adolescent with anorexia as parents carry the burden of treatment and re-nourishment of their child during FBT and may have similar thinking styles. CONCLUSION: This study takes an experimental therapeutics approach to further our understanding of the mechanisms of treatment for adolescents with anorexia. It focuses on increasing cognitive flexibility in patients or their parents and determining the appropriate dose of CRT needed to achieve positive change. TRIAL REGISTRATION: ClinicalTrails.gov Identifier NCT03928028.

Associations between ergogenic supplement use and eating behaviors among university students.

Ergogenic supplements to improve athletic performance are commonly used among college athletes, but little is known about their association with eating disorder symptoms. The objective of this study was to examine associations between ergogenic supplement use and disordered eating attitudes and behaviors among university students, and to compare differences by sex. Undergraduate students from 10 top-ranked National College Athletics Association (NCAA) Division I colleges completed an online survey on supplement use, athletic activities, and eating attitudes and behaviors. Among 1633 university students, males (38.9%) reported higher rates of current supplement use than females (15.2%) (p < .001). In linear regression models adjusting for athletic status and body mass index, current supplement use was associated with higher Eating Disorders Examination-Questionnaire (EDE-Q) Global, Shape Concern, and Restraint scores in both males and females. Supplement use was associated with driven/compelled exercise (OR 2.00, 95% CI 1.33-2.99) in males and diuretic (OR 6.39, 95% CI 2.02-20.22) and diet pill use (OR 3.07, 95% CI 1.79-5.27) in females. Results suggest ergogenic supplement use is common in undergraduates and associated with disordered eating attitudes and behaviors. Clinicians should screen for disordered eating behaviors particularly in young adults who use ergogenic supplements.

Eating behavior and reasons for exercise among competitive collegiate male athletes.

PURPOSE: Research concerning eating disorders among adolescent and young adult male athletes is limited compared with female counterparts, but increasing evidence indicates that they may be at unique risk for unhealthy exercise and eating behavior. The current study aimed to characterize unhealthy exercise and eating behavior according to competitive athlete status, as well as per sport type. METHOD: Collegiate male athletes (N = 611), each affiliated with one of the 10 National College Athletics Association (NCAA) Division I schools in the United States, completed an online survey, reporting on eating and extreme weight control behaviors, and reasons for exercise. RESULTS: Competitive athletes endorsed increased driven exercise and exercising when sick. Baseball players, cyclists, and wrestlers emerged as the sports with the most players reporting elevated Eating Disorder Examination-Questionnaire scores in a clinical range, and basketball players reported the highest rates of binge eating. overall, baseball players, cyclists, rowers, and wrestlers appeared to demonstrate the greatest vulnerability for unhealthy eating and exercise behavior. CONCLUSION: Findings revealed differences between competitive and non-competitive male athletes. Among competitive athletes, results identified unique risk for unhealthy eating and exercise behavior across a variety of sport categories and support continued examination of these attitudes and behaviors in a nuanced manner. LEVEL II: Evidence obtained from well-designed controlled trials without randomization.

Outcomes of a Rapid Adolescent Telehealth Scale-Up During the COVID-19 Pandemic.

PURPOSE: To describe the first 30 days of rapid adolescent telehealth scale-up in response to the coronavirus (COVID-19) pandemic at a single academic medical center and assess for disparities in visit completion rates by patient characteristics. METHODS: Visit outcome and patient demographic data were obtained via electronic health record (EHR) reports. Telehealth visit completion rates were compared by patient characteristics using the chi-square test and t-test. We used zip code data to generate latitude- and longitude-based maps of the range and density of service delivery. Patient cases highlighting challenges and opportunities for adolescent telehealth were summarized. RESULTS: Between March 16 and April 15, 2020, 392 telehealth visits were scheduled in 331 unique patients, with an 82% appointment completion rate. Video visits were conducted for eating disorders (39%), contraception/menstrual disorders (22%), gender-affirming care (17%), general adolescent medicine (15%), HIV treatment (6%), and substance abuse (1%). The majority of telehealth patients were female Caucasian minors with private insurance. There were no significant differences in telehealth visit completion rates by age, sex, gender, or insurance. Patients coded as non-white (African-American, Asian, or other) in the EHR had lower visit completion rates than white patients (p = .003). Telehealth patients were distributed across five states, with the highest concentration in the zip codes nearest to the clinic. CONCLUSIONS: Rapid scale-up of telehealth for Adolescent Medicine was achieved at this large academic medical center. Future implementation research is needed to assure telehealth reaches adolescents without widening health disparities.

Conducting a Pilot Randomized Controlled Trial on a Medical Inpatient Unit Utilizing Cognitive Remediation Therapy for Adolescents with Restrictive Eating Disorders: Protocol Updates and Reflections on Feasibility.

We conducted a pilot randomized control trial (RCT) to simultaneously examine the feasibility of effectively implementing Cognitive Remediation Therapy (CRT) for adolescents with anorexia nervosa (AN) during medical hospitalization at a single-site hospital center. Employment of this protocol occurred on a general medical unit with diverse medical admitting diagnoses, not an eating disorder floor of a hospital and not part of a structured inpatient anorexia nervosa treatment program. This was the first time an RCT for a psychosocial intervention was implemented on this unit with patients with eating disorders. Here, we describe the process of piloting the study, including modifications that needed to be made to the original protocol. We also describe the feedback from major stakeholders regarding the process of conducting the pilot study. We summarize lessons learned and steps to take for smooth integration of an RCT of a therapeutic intervention on medical unit.Trial registration: ClinicalTrials.gov Identifier NCT02883413.

Medical Complications of Eating Disorders in Youth.

Eating disorders affect a significant number of individuals across the life span and are found among all demographic groups (including all genders, socioeconomic statuses, and ethnicities). They can cause malnutrition, which can have significant effects on every organ system in the body. Cardiovascular complications are particularly dangerous and cause eating disorders to have the highest mortality rate of all mental illnesses. This article outlines the medical assessment and treatment of malnutrition due to disordered eating.

Comparisons of bone density and body composition among adolescents with anorexia nervosa and atypical anorexia nervosa.

OBJECTIVE: To compare bone mineral density (BMD) and body composition among adolescents: (a) with atypical anorexia nervosa (AAN) versus anorexia nervosa (AN) and (b) those with and without a prior history of overweight. METHOD: Electronic medical records of patients 9-20 years with AN or AAN who underwent dual-energy x-ray absorptiometry scans were retrospectively reviewed and analyzed. RESULTS: A total of 286 adolescents with AN or AAN were included. In linear regression models, AAN was associated with greater Z-scores in whole body bone mineral content (BMC, B = 0.88, p < 0.001), lumbar spine BMD (B = 0.79, p = 0.002), femoral neck BMD (B = 0.670, p = 0.009); fat mass index (B = 1.33, p = 0.003), and lean body mass index (LBMI, B = 1.10, p < 0.001) compared to AN, adjusting for age, sex, and duration of illness. A prior overweight history was associated with greater Z-scores in whole body BMC; lumbar spine BMD, total hip BMD, femoral neck BMD, and LBMI. DISCUSSION: Adolescents with AAN had higher BMD Z-scores than adolescents with AN; adolescents with a prior overweight history had greater BMD Z-scores than adolescents without a prior overweight history. These findings may inform clinical guidelines for the medical management of AAN.

Associations between exercise, bone mineral density, and body composition in adolescents with anorexia nervosa.

OBJECTIVE: To identify the effect of duration of weight-bearing exercise and team sports participation on bone mineral density (BMD) and body composition among adolescents with anorexia nervosa (AN). METHOD: We retrospectively reviewed electronic medical records of all patients 9-20 years old with a DSM-5 diagnosis of AN evaluated by the Stanford Eating Disorders Program (1997-2011) who underwent dual-energy X-ray absorptiometry. RESULTS: A total of 188 adolescents with AN were included (178 females and 10 males). Using multivariate linear regression, duration of weight-bearing exercise (B = 0.15, p = 0.005) and participation in team sports (B = 0.53, p = 0.001) were associated with higher BMD at the hip and team sports (B = 0.39, p = 0.006) were associated with higher whole body BMC, controlling for covariates. Participation in team sports (B = - 1.06, p = 0.007) was associated with greater deficits in FMI Z-score. LBMI Z-score was positively associated with duration of weight-bearing exercise (B = 0.10, p = 0.018) and may explain the relationship between exercise and bone outcomes. CONCLUSION: Duration of weight-bearing exercise and team sports participation may be protective of BMD at the hip and whole body BMC, while participation in team sports was associated with greater FMI deficits among adolescents with AN. LEVEL OF EVIDENCE: Level V, descriptive retrospective study.

Characterization and correlates of exercise among adolescents with anorexia nervosa and bulimia nervosa.

OBJECTIVE: To characterize exercise behaviors among adolescents with anorexia nervosa (AN), atypical AN, or bulimia nervosa (BN), and determine associations between exercise and medical risk. STUDY DESIGN: Cross-sectional electronic medical records of all patients evaluated by the Eating Disorder Program at Stanford between January 1997 and February 2011 were retrospectively reviewed. RESULTS: 1,083 subjects (961 females, 122 males; mean age 15.6) met eligibility criteria. Most patients (89.7%) reported exercise (mean 7.0 h per week over mean 5.4 days per week) prior to presentation. Running (49.9%), calisthenics (40.7%), walking (23.4%), soccer (20.9%), and swimming (18.2%) were the most common exercises; a majority (60.6%) reported team sport participation. Males were less likely to report team exercise (p = .005). Bradycardia (heart rate <50) at presentation was associated with team sport participation (adjusted odds ratio [AOR] 1.66, 95% confidence interval [CI] 1.02-2.72) and hours of exercise per week (AOR 1.05, 95% CI 1.02-1.09), controlling for diagnosis, sex, age, duration of illness, rate of weight loss, and percent median body mass index (%mBMI). DISCUSSION: Adolescents with AN, atypical AN, and BN reported high levels of exercise. Females reported more team sport participation. Greater exercise frequency and team sport participation were associated with bradycardia. Further studies assessing the relationship between exercise and bradycardia may help inform the medical management of adolescents with these eating disorders who are more physically active.

Outcomes of an inpatient medical nutritional rehabilitation protocol in children and adolescents with eating disorders.

BACKGROUND: Medical stabilization through inpatient nutritional rehabilitation is often necessary for patients with eating disorders (EDs) but includes the inherent risk of refeeding syndrome. Here we describe our experience of implementing and sustaining an inpatient nutritional rehabilitation protocol designed to strategically prepare patients with EDs and their families for discharge to a home setting in an efficient and effective manner from a general adolescent medicine unit. We report outcomes at admission, discharge, and 4-weeks follow-up. METHODS: Protocol development, implementation, and unique features of the protocol, are described. Data were collected retrospectively as part of a continuous quality improvement (QI) initiative. Safety outcomes were the clinical need for phosphorus, potassium, and magnesium supplementation, other evidence of refeeding syndrome, and unexpected readmissions within one month of discharge. The value outcome was length of stay (LOS). Treatment outcomes were the percentage median BMI (MBMI) change from admission to discharge, and from discharge to 4-weeks follow-up visit. RESULTS: A total of 215 patients (88% F, 12% M) were included. Patients averaged 15.3 years old (5.8-23.2y); 64% had AN, 18% had atypical anorexia (AtAN), 6% bulimia nervosa (BN), 5% purging disorder (PD), 4% avoidant-restrictive food intake disorder (ARFID), and 3% had an unspecified food and eating disorder (UFED). Average LOS was 11 days. Initial mean calorie level for patients at admission was 1466 and at discharge 3800 kcals/day. Phosphorus supplementation for refeeding hypophosphatemia (RH) was needed in 14% of inpatients; full-threshold refeeding syndrome did not occur. Only 3.8% were rehospitalized in the thirty days after discharge. Patients averaged 86.1% of a median MBMI for age and gender, 91.4% MBMI at discharge, and 100.9% MBMI at 4-weeks follow-up. Mean percentage MBMI differences between time points were significantly different (admission-discharge: 5.3%, p <0.001; discharge-follow-up: 9.2%, p <0.001). CONCLUSIONS: Implementation of the CHOP inpatient nutritional rehabilitation protocol aimed at rapid, efficient, and safe weight gain and integration of caregivers in treatment of patients with diverse ED diagnoses led to excellent QI outcomes in percentage MBMI at discharge and 4-weeks follow-up, while maintaining a short LOS and low rates of RH phosphorus supplementation.

Assessment of Sex Differences in Body Composition Among Adolescents With Anorexia Nervosa.

PURPOSE: To compare deficits in fat mass (FM) and lean body mass (LM) among male and female adolescents with anorexia nervosa (AN) and to identify other covariates associated with body composition. METHODS: We retrospectively reviewed electronic medical records of all subjects aged 9-20 years with a Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition diagnosis of AN and dual-energy x-ray absorptiometry scans after initial evaluation at Stanford between March 1997 and February 2011. From the dual-energy x-ray absorptiometry scans, LM and FM results were converted to age-, height-, sex-, and race-specific Z-scores for age using the National Health and Nutrition Examination Survey reference data. RESULTS: A total of 16 boys and 119 girls with AN met eligibility criteria. The FM Z-score in girls with AN (-3.24 ± 1.50) was significantly lower than that in boys with AN (-2.41 ± .96) in unadjusted models (p = .007). LM was reduced in both girls and boys with AN, but there was no significant sex difference in LM Z-scores. In multivariate models, lower percentage median body mass index was significantly associated with lower FM Z-scores (ß = .08, p < .0001) and lower LM Z-score (ß = .03, p = .0002), whereas lower whole body bone mineral content Z-score was significantly associated with lower LM Z-score (ß = .21, p = .0006). CONCLUSIONS: FM deficits in girls were significantly greater than those in boys with AN in unadjusted models; however, the degree of malnutrition appeared to be the primary factor accounting for this difference. There were no significant sex differences in FM or LM in adjusted models.

Assessment of sex differences in bone deficits among adolescents with anorexia nervosa.

OBJECTIVE: The objective of this study was to compare sex differences in bone deficits among adolescents with anorexia nervosa (AN) and to identify other correlates of bone health. METHOD: Electronic medical records of all patients 9-20 years of age with a DSM-5 diagnosis of AN who were evaluated by the eating disorders program at Stanford with dual-energy X-ray absorptiometry (DXA) between March 1997 and February 2011 were retrospectively reviewed. Whole body bone mineral content Z-scores and bone mineral density (BMD) Z-scores at multiple sites were recorded using the Bone Mineral Density in Childhood Study (BMDCS) reference data. RESULTS: A total of 25 males and 253 females with AN were included, with median age 15 years (interquartile range [IQR] 14-17) and median duration of illness 9 months (IQR 5-13). Using linear regression analyses, no significant sex differences in bone deficits were found at the lumbar spine, total hip, femoral neck, or whole body when controlling for age, %mBMI, and duration of illness. Lower %mBMI was significantly associated with bone deficits at all sites in adjusted models. DISCUSSION: This is the first study to evaluate sex differences in bone health among adolescents with AN, using novel DSM-5 criteria for AN and robust BMDCS reference data. We find no significant sex differences in bone deficits among adolescents with AN except for a higher proportion of females with femoral neck BMD Z-scores <-1. Degree of malnutrition was correlated with bone deficits at all sites. © 2016 Wiley Periodicals, Inc.(Int J Eat Disord 2017; 50:352-358).

Effect of a Prior History of Overweight on Return of Menses in Adolescents With Eating Disorders.

PURPOSE: The purpose of this study was to determine whether a history of overweight, weight suppression, and weight gain during treatment have an effect on return of menses (ROM) in adolescents with eating disorders (EDs). METHODS: Retrospective chart review of female adolescents presenting to an ED program from January 2007 to June 2009. RESULTS: One hundred sixty-three participants (mean age, 16.6 ± 2.1 years) met eligibility criteria. The mean median body mass index percent at ROM for those previously overweight was 106.1 ± 11.7 versus 94.2 ± 8.9 for those not previously overweight (p < .001). Both groups needed to gain weight for ROM. Greater weight suppression (odds ratio, 0.90; 95% confidence interval, 0.84-0.98; p = .013) was associated with lower likelihood of ROM, and greater weight gain during treatment (odds ratio, 1.20; 95% confidence interval, 1.07-1.36; p = .002) was associated with higher likelihood of ROM in those not previously overweight. CONCLUSIONS: Previously overweight amenorrheic patients with EDs needed to be at a higher median body mass index percent for ROM compared to those who were not previously overweight.