Body checking and obsessive-compulsive symptoms in Brazilian outpatients with eating disorders

Restrictive eating disorders in higher weight persons: A systematic review of atypical anorexia nervosa prevalence and consecutive admission literature

OBJECTIVE

Currently, there is debate in the eating disorders field regarding how to define atypical anorexia (AAN), how prevalent it is in community and clinical settings, and how AAN rates compare with low-weight AN. This systematic review assesses AAN literature from 2007 to 2020, to investigate: (a) the demographic characteristics of AAN studies, (b) the prevalence of AAN compared with AN, (c) the range of operational definitions of AAN and the implications of these definitions, and (d) the proportion of patients with AAN and AN represented in consecutive admission and referral samples.

METHOD

PsychINFO, CINAHL, PubMed, Greylit.org, and ProQuest databases were searched according to methods for Preferred Reporting Items for Systematic Reviews and Meta-Analyses systematic reviews, yielding 3,184 potential articles. Seventy-five eligible studies were coded for sixty-one variables.

RESULTS

Clinical samples predominantly included younger, female, white samples with limited diversity. In epidemiological designs, AAN was typically as common or more common than AN, and AAN rates varied significantly based on the population studied and operational definitions. In consecutive clinical samples, AAN was frequently less represented.

DISCUSSION

Although AAN appears to occur more frequently than AN in communities, fewer patients with AAN are being referred and admitted to eating disorder specific care, particularly in the United States. Given the significant medical and psychosocial consequences of AAN, and the importance of early intervention, this represents a crucial treatment gap. Additionally, results suggest the need for fine-tuning diagnostic definitions, greater diversity in AAN studies, and increased screening and referral for this vulnerable population.

Factor structure and psychometric properties of the Spanish version of the Body Image Avoidance Questionnaire (BIAQ)

PURPOSE

The main objective of this study was to analyse the factor structure and psychometric properties of a Spanish validation of the Body Image Avoidance Questionnaire (BIAQ) in a community sample of adolescents.

METHODS

A total of 4283 people (55.9% girls, aged 12-18) participated.

RESULTS

Confirmatory factor analysis corroborated four first-order factors related to a second-order factor including the total BIAQ score, with excellent fit and invariance across sex. The total internal consistency of the questionnaire was adequate, although two factors showed low reliability. Strong relationships were found with scales evaluating preoccupation with weight and dysmorphic concerns, and moderate correlations with dissatisfaction and investment in appearance. It was found that 24.06% of adolescents with body image disturbance could be at risk of developing a body image disorder.

CONCLUSIONS

The results of this study support the use of the Spanish translation of the BIAQ for assessing behavioural characteristic of body image disturbance.

LEVEL OF EVIDENCE

V, cross-sectional descriptive study.

What do I look like? Perceptual confidence in bulimia nervosa

Cognitive confidence, a type of metacognition referring to confidence in one's cognitive abilities (e.g., memory, perception, etc.), has been identified as relevant to eating disorders (EDs) using self-report measures. Repeated checking has been found to elicit decreases in perceptual confidence in obsessive compulsive disorder (OCD). The purpose of the present study was to experimentally investigate perceptual confidence, a type of cognitive confidence, in EDs. Specifically, this construct was investigated in the context of body checking, a behaviour with similarities to compulsive checking as observed in OCD. Women with bulimia nervosa (BN; n = 21) and healthy controls (HC; n = 24) participated in the study. There were no group differences with regards to perceptual confidence at baseline F(1, 43) = 0.5, p = 0.48, η_p² = 0.01, but a significant difference was observed post-checking F(1, 43) = 7.79, p = 0.008, η_p² = 0.15, which was accounted for by significant decreases in perceptual confidence in the BN group F(1, 43) = 13.31, p < 0.001, η_p² = 0.24. Similar to compulsive checking in OCD, body checking may paradoxically decrease confidence regarding one's appearance. LEVEL OF EVIDENCE: Level I, experimental study.

Eating disorders and substance use in adolescents: How substance users differ from nonsubstance users in an outpatient eating disorders treatment clinic

OBJECTIVE

The relationship between eating disorders (EDs) and substance use (SU) has only been briefly described in literature using mainly adult populations. This study examined the prevalence and characteristics of SU among patients of an adolescent ED outpatient treatment program.

METHOD

A retrospective chart analysis was conducted to determine and subsequently compare medical status, psychosocial factors, treatment course and outcome between patients with and without SU.

RESULTS

Over 60% of patients with SU status (n = 203) reported regularly consuming substances. 33.4% of substance users received a diagnosis involving purging behaviors compared to 5.9% of nonusers. Females composed 96.4% and 81.7% of users and nonusers, respectively. Users reported significantly more self-harm (57.7% of users vs. 38.6% of nonusers) but did not differ significantly in terms of trauma (abuse or victimization; 48.3% of users vs. 44.9% of nonusers). The percentage of ideal body weight significantly improved throughout treatment and did not differ by SU with a mean increase of 5.29% (SD = 13.6) among nonusers compared to 5.45% (SD = 7.5) of users. While users and nonusers did not differ before and after treatment in ED severity, users were more likely than nonusers to drop-out of treatment (41.5% of users vs. 25.2% of nonusers).

DISCUSSION

Adolescents with SU benefit from ED outpatient treatment as much as those without SU, however, users are more likely to drop-out. Therefore, treatment should target these adolescents' emotional dysregulation to improve treatment compliance. Further research is necessary to determine the efficacy of such an approach.