Journal of Eating Disorders最新文献

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

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

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

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

Objective: Eating disorders are complex illnesses with high morbidity and mortality. Yet, there is promising evidence to support the effects of nutrition on the brain and behaviour. One proposed example is the use of tyrosine as an adjunct treatment in anorexia nervosa (AN). However, recruitment and retention in eating disorder clinical trials has posed difficulties for researchers. The aim of this study was to pilot test a parallel randomised controlled trial (RCT) of tyrosine supplementation to explore the feasibility of recruitment and retention, intervention adherence and data collection methods from the perspective of participants and researchers.

Method: Feasibility was assessed using numbers participating, questionnaire completion in patients and parent/carers completing and declining participation, a researcher implementation record and clinical measures. Subjects included adolescents aged 12-17 years with AN. The study was conducted over a 12-week period, with the intervention group receiving 5 mg of L-tyrosine supplement and the control group receiving a placebo.

Results: Recruitment targets were not met and recruitment to a full RCT based on the current study protocol and recruitment sites did not prove feasible. Of the 39 approached for RCT participation, seven were recruited to the RCT (18% response rate) despite extending recruitment periods, with 100% retained and analysed. Patients or parents/carers identified barriers to study participation including burden, the need to consume tyrosine as tablets, and the use of blood, urine and psychological testing. Blood tyrosine rose markedly for subjects in the intervention group. No side effects were reported or measured.

Conclusions: This study offers a unique exploration of the feasibility of a tyrosine trial in anorexia nervosa and is of relevance to assist the success of future nutrition trials. Exploring the suitability of future study designs for nutrition intervention research is warranted.

Background: Co-production is increasingly used in mental health research and clinical settings. Maze Out is a digital game co-produced by clinicians, patients with eating disorders (EDs), an art director with lived experience in EDs, and a game-developing company. Maze Out is based on everyday challenges when suffering from EDs and is currently being evaluated as a supplement tool in EDs treatment. Several studies on co-producing mental health interventions focus on design and effectiveness, but the experiences of those involved in the co-production process remain unexplored. An in-depth exploration of stakeholders' experiences offers valuable insights into the impact of co-production on different groups and generates crucial knowledge for successful implementation.

Objectives: This study evaluated and explored the co-production process and the meaning that EDs patients, clinicians, and game designers attributed to their participation in the co-production of Maze Out. The objectives were to determine (1) how stakeholders experienced their collaboration in the co-production of Maze Out.; and (2) to what extent the stakeholders involved in developing Maze Out followed Cahn's principles of equality, diversity, accessibility, and reciprocity.

Methods: Five stakeholders (two patients, two clinicians, and a game designer) who participated in the co-production completed semi-structured interviews. Two patients and one clinician's diaries supplemented the interviews. Reflexive thematic analysis was used to interpret the data.

Results: The results of this study highlight the importance of building a common language between clinicians, patients, and other professionals involved in developing new forms of treatment and interventions. A recommendation for researchers and clinicians to implement co-production in the future is that Cahn's principles: equality, reciprocity, accessibility, and diversity, serve as a strong foundation for successful co-production. In this study, three and partially one of the four Cahn's principles about co-production were identified: equality, reciprocity, and accessibility. When applied in an ED context, these principles provided stakeholders with valuable insights, enriching practice-based knowledge, using the knowledge applicable to clinical practice, and demonstrating their crucial role in fostering effective co-production processes.

Background: The pronounced changes in reproductive hormones, such as oestradiol and progesterone, that occur during the menopause transition can contribute to increased risk of eating disorder onset or exacerbate a pre-existing eating disorder. Despite this heightened risk, there is a lack of available education and support that takes into consideration the unique challenges of experiencing an eating disorder during the menopause transition. This research aimed to qualitatively explore the perspectives of people with a lived experience of an eating disorder during the menopause transition, and to co-design a support option that addressed their unmet needs.

Methods: A Double Diamond co-design process was followed involving four phases: discover, define, develop, and deliver. Seventeen women in Australia with a lived experience of an eating disorder during the menopause transition participated in online workshops across the four phases to identify their unmet health educational needs in experiencing an eating disorder during this transition, develop potential solutions and ultimately deliver a prototype solution in the final phase. All online workshops were recorded, transcribed verbatim and analysed using qualitative thematic analysis. The findings from the previous phase informed the next leading to the prototype creation.

Results: Qualitative thematic analysis identified six major themes across the four phases; lack of awareness of the intersection of menopause and eating disorders, lack of education, limited and stigmatising services, learning from lived experience, resource impact and resource development.

Conclusions: Findings from this study provided preliminary acceptability of a novel online resource to address the unmet educational needs of people experiencing an eating disorder during the menopause transition. Overall positive feedback on the potential for the resource to improve knowledge and empower treatment-seeking was provided by women with lived experience.

Background: Adolescents, particularly vulnerable during puberty, often face heightened concerns about dieting and body image. Transfeminine youth, especially in Asian cultures, are understudied in this context. This study investigates eating disorder risks among Thai transfeminine youth and compares to cisgender females, focusing on the association with body dissatisfaction. This study aims to explore 3 objectives: (1) to assess and compare the prevalence of eating disorder risks between Thai transfeminine youth and cisgender females; (2) to examine the link between body dissatisfaction and eating disorder risks; (3) to identify risk factors associated with abnormal eating disorder screening outcomes.

Method: This is a cross-sectional comparative study conducted between September 2021 and October 2022. The study questionnaire includes Thai version of the Eating Attitude Test-26 (EAT-26) to assess the risks of eating disorders and Thai version of the Body Image Concern Inventory (BICI) to assess body dissatisfaction. The questionnaire was distributed through social media platforms to transfeminine and cisgender females, aged 12-25 years. The correlation between eating disorder risks and body dissatisfaction was analyzed with linear regression, while the comparisons between transfeminine individuals and cisgender female groups were analyzed with Wilcoxon rank-sum test.

Results: The study included 241 transfeminine individuals and 388 cisgender females, median age 19.0 years (interquartile range [IQR] 18-21) and 18 years (IQR 16-20), respectively. Ninety (37.3%) transfeminine individuals had an EAT-26 score ≥ 20, suggesting concerns for dieting and eating behaviors, compared to 70 (18%) cisgender females (p < 0.001). Risk factors for EDs included obesity (odds ratio [OR] 3.22, confidence interval [CI] 1.36-7.6) and low income (OR 3.66, CI 1.59-8.4). Protective factors were negligible exercise (OR 0.24, CI 0.09-0.66), gender identity disclosure (OR 0.27, CI 0.1-0.77), and high levels of happiness (OR 0.85, CI 0.73-0.98). There is a significant correlation between the positive eating behavior screening and the body dissatisfaction scores.

Conclusions: Transfeminine youths show significantly higher concerns about dieting, body weight, and eating behaviors than their cisgender females, highlighting the unique challenges they face. These results emphasize the needs for targeted screening, health care access for treatment and support for eating disorders in transfeminine youths.

Background: Both night-eating syndrome and binge-eating disorder are characterized by episodes of excessive food consumption, significant distress, and functional impairment related to maladaptive eating behaviors. Both types of eating disorders are associated with poorer sleep quality. Cognitive behavioral therapy has demonstrated good outcomes for binge-eating disorder; however, it is unknown if it is effective for night-eating syndrome and comorbid insomnia.

Case presentation: The current paper presents a case report of a Dutch woman in her 40's receiving cognitive behavioral therapy-enhanced for night-eating syndrome, as well as binge-eating disorder. However, to tailor the intervention to her specific needs, throughout the course of treatment, cognitive behavioral therapy-insomnia interventions were also implemented. Her comorbid complaints were insomnia, childhood trauma, a depressive mood disorder, and cluster B and C personality traits. She had a history of bariatric surgery, as well as alcohol addiction, and received various treatments in the past, aiming to become abstinent from binge eating.

Conclusions: Post-treatment, she was abstinent from binge eating and, her scores of various eating disorder measures were below clinical cut-points. However, it is unclear if she would show earlier symptom reduction if she received cognitive behavioral therapy-insomnia, prior to cognitive behavioral therapy-enhanced. In addition, the patient reported an increase in her depressive mood and commenced schema therapy after cognitive behavioral therapy- enhanced. Although common, the underlying cause of symptom shifts in patients with an eating disorder remains largely unknown.

Background: Orthorexia nervosa (ON) is defined as a pathological fixation on eating healthy and pure food. In this study, it was aimed to evaluate the psychometric properties of the Turkish version of the Düsseldorf orthorexia scale (DOS) in a clinical sample.

Methods: A total of 385 individuals, 117 with generalized anxiety disorder (GAD), 108 with major depressive disorder (MDD), 56 with obsessive-compulsive disorder (OCD) and 104 healthy controls, participated in the study. Hamilton Depression Rating Scale (HAM-D), Hamilton Anxiety Rating Scale (HAM-A), Yale-Brown Obsessive-Compulsive Scale (Y-BOCS), Eating Attitude Test (EAT-40), Orthorexia Nervosa Inventory (ONI) and Düsseldorf Orthorexia Scale (DOS) were applied to all participants.

Results: The DOS demonstrated high internal consistency (Cronbach's alpha = 0.87) and good construct validity. Confirmatory factor analysis supported a one-factor structure, explaining a significant portion of variance among responses. In the analyses performed to test the convergent validity of DOS, a positive correlation was found with ONI and EAT scores (p < 0.001 for each). There was no significant correlation between DOS and HAM-D and HAM-A scores (p > 0.05 for each). The severity of orthorexic symptoms measured by DOS was similar between each patient group and healthy control group. DOS was applied to 70 more participants two weeks apart and the test-retest reliability was determined as 0.99.

Conclusions: This study shows that the Turkish version of DOS is valid and reliable in clinical samples and healthy individuals, is largely consistent with ONI, and that this scale can be used in studies investigating ON.

Perfectionism has been identified as a vulnerability and maintenance factor across eating disorders (EDs). Additionally, research has found that intolerance of uncertainty (IU) and repetitive negative thinking (RNT) moderate the relationship between perfectionism and psychopathology. Despite this evidence, few studies have examined if these factors specifically moderate ED severity. This study aimed to fill this gap by investigating the moderating effect of IU and RNT on the relationship between perfectionism and ED symptoms, as well as the predictive power of these factors on identifying participants with clinically significant ED symptoms. 331 treatment-seeking adults from a university-affiliated community clinic and 264 undergraduate students completed measures to assess ED symptoms, RNT, perfectionism and IU. 147 participants (24.7% of the total sample) had clinically significant levels of ED symptoms as determined by the Eating Disorder Questionnaire Short-Form (EDE-QS). Multiple linear regressions found significant associations between ED symptoms and both the IU*perfectionism interaction (p < .001) and the RNT*perfectionism interaction (p < .001). A binary logistic regression identified that both the IU*perfectionism interaction (p = .03) and the RNT*perfectionism interaction (p = .001) predicted clinically significant EDE-QS scores. The findings indicate that both IU and RNT moderate the relationship between perfectionism and ED symptoms and build on previous literature recognising transdiagnostic contributors to ED symptomatology.