Insight May Limit Identification of Eating Disorders

Epidemiology of eating disorders among US adults

PURPOSE OF REVIEW

Public policy efforts for prevention of and intervention upon eating disorders is severely limited in the United States due to the paucity of population-based data. This review article summarizes findings regarding eating disorders based on the National Epidemiological Studies on Alcohol and Related Conditions, Third Wave. The studies reviewed provide the most recent epidemiological indicators of anorexia nervosa, bulimia nervosa, and binge-eating disorder (BED) in the United States and demonstrate the utility of population-based data for validating the generalizability of findings from clinical samples.

RECENT FINDINGS

Anorexia nervosa, bulimia nervosa, and BED are widely distributed across sociodemographic characteristics, with substantially elevated risks for a variety of serious psychiatric, medical, and functional impairments, including heighted suicidality over the lifespan. Sexual minorities and individuals with adverse childhood experiences may be particularly vulnerable. Yet, many adults with eating disorders do not seek help, particularly professional help. National Epidemiological Studies on Alcohol and Related Conditions, Third Wave studies also validated some important clinical observations (e.g., overvaluation of shape/weight and physical inactivity in BED, more severe anorexia nervosa with onset prior to 14 years old).

SUMMARY

More rigorous population-based studies are needed to further advocate for appropriate resources and policies for eating disorders in the United States.

DSM-5 eating disorder prevalence, gender differences, and mental health associations in United States military veterans

OBJECTIVE

Little is known about prevalence estimates of new and revised DSM-5 eating disorders diagnoses in general, and especially among high-risk, underserved and diverse eating disorder populations. The aim of the current study was to determine prevalence, gender differences and correlates of DSM-5 eating disorders in veterans.

METHOD

Iraq and Afghanistan war era veterans (N = 1,121, 51.2% women) completed the Eating Disorder Diagnostic Scale-5 and validated measures of eating pathology and mental health between July 2014 and September 2019.

RESULTS

Overall more women than men (32.8% vs. 18.8%, p < .001) reported symptoms consistent with a DSM-5 eating disorder. Prevalence estimates (women vs. men) for the specific diagnoses were: Anorexia Nervosa (AN; 0.0% vs. 0.0%), Bulimia Nervosa (BN; 6.1% vs. 3.5%), Binge-Eating Disorder (BED; 4.4% vs. 2.9%), Atypical AN (AAN; 13.6% vs. 4.9%), Subclinical BN (0.0% vs. 0.2%), Subclinical BED (1.4% vs. 0.6%), Purging Disorder (2.1% vs. 0.7%), and Night Eating Syndrome (NES; 5.2% vs. 6.0%). Women were more likely to have BN or AAN, and there was no difference for BED or NES among genders. The eating disorder group had a higher mean BMI, and significantly greater eating pathology and mental health symptoms than the non-eating disorder group.

DISCUSSION

Approximately one-third of women, and one-fifth of men, reported symptoms consistent with a DSM-5 eating disorder diagnosis. These high prevalence estimates across genders, and associated mental health concerns, suggest an urgent need to better understand and address eating disorders in military and veteran populations.

General practitioner and mental healthcare use in a community sample of people with diagnostic threshold symptoms of bulimia nervosa, binge-eating disorder, and other eating disorders

OBJECTIVE

Lengthy delays in receiving treatment have been reported for people with bulimia nervosa (BN) and binge-eating disorder (BED). This study aimed to investigate healthcare use and predictors of mental health specialist healthcare use in a community sample of individuals with diagnostic threshold symptoms of BN, BED-Broad, or another eating disorder (Other ED).

METHOD

In 2017, 2,977 individuals aged ≥15 years were interviewed in a general population survey. Participants were asked questions relating to sociodemographic, ED symptoms, other clinical features, and healthcare use data. Assessment of ED symptoms was based on diagnostic questions derived from the eating disorder examination.

RESULTS

Thirty-six participants with symptoms of BN, 33 participants with BED-Broad, and 369 with an Other ED were identified. Fewer people with symptoms of BN/BED-Broad (23%) or an Other ED (6%) had treatment from a mental health specialist than from a general practitioner (GP; 80%, 71.6%). Healthcare use differed significantly across type of ED only for treatment from a mental health specialist. In multivariate analyses, being asked about a person's mental health by a GP was the best explanatory variable for receiving treatment from a mental health specialist.

DISCUSSION

A large treatment gap exists in healthcare for people with EDs. Inquiry about an individual's mental health by a GP was associated with higher rates of treatment from mental health specialists. However, a similar diet/eating inquiry did not have this association. Future research should consider the use of this patient and practitioner consultation in targeting improved detection of EDs.