Suicide attempts among people with eating disorders and adverse childhood experiences: Results from a nationally representative sample of adults

Adverse childhood experiences, low self-esteem, and salient stimulus response in eating disorders

BACKGROUND

Adverse childhood experiences (ACEs) are elevated in individuals with eating disorders (EDs), but how the neurobiology of EDs and ACEs interact is unclear.

METHODS

Women 18-45 years old with anorexia nervosa (AN, n = 38), bulimia nervosa (BN, n = 32), or healthy controls (n = 60) were assessed for ACEs and ED behaviours and performed a taste-conditioning task during brain imaging. Mediation analyses tested relationships between ACE score, self-esteem, and ED behaviours.

RESULTS

ACE scores were elevated in EDs and correlated positively with body mass index (p = 0.001), drive for thinness (p = 0.001), and body dissatisfaction (p = 0.032); low self-esteem mediated the relationship between ACEs and body dissatisfaction, drive for thinness, and bulimia severity. ACE scores correlated negatively (FDR-corrected) with unexpected, salient stimulus receipt in AN (substantia nigra) and BN (anterior cingulate, frontal and insular cortex, ventral striatum, and substantia nigra). When ACE scores were included in the model, unexpected stimulus receipt brain response was elevated in EDs in the anterior cingulate and ventral striatum.

CONCLUSIONS

ACEs attenuate unexpected salient stimulus receipt response, which may be a biological marker for altered valence or hedonic tone perception in EDs. Low self-esteem mediates the relationships between ACEs and ED behaviours. Adverse childhood experiences should be assessed in biological studies, and their effects targeted in treatment.

Harsh, unpredictable childhood environments are associated with inferior frontal gyrus connectivity and binge eating tendencies in late adolescents

Harsh, unpredictable childhood environments (HUCE) are associated with obesity older in life, but knowledge of how HUCE affect binge eating tendencies is lacking. Five hundred and one late adolescents aged 16-22 were recruited to finish resting state functional magnetic resonance imaging scan, behavioral measures including retrospective recall of childhood environmental harshness and unpredictability, binge eating tendencies and demographics. Three hundred and seventy-six of participants further completed the computerized visual probe task designed to evaluate attentional engagement towards high and low calorie food. As right inferior frontal gyrus (IFG) was the key nodes that related to both early life adversity and binge eating tendencies, it was treated as the interest region in the dynamic functional connectivity analyses. Results found that HUCE are associated with significant but modest decreases in connectivity of right inferior frontal gyrus (IFG)- bilateral medial frontal gyrus, right IFG - bilateral inferior parietal lobule (IPL), and right IFG - left superior frontal gyrus connectivity, as well as attentional engagement to high-calorie food and binge eating tendencies. A machine-learning method named linear support vector regression (SVR) and leave one out cross-validation (LOOCV) procedure used to examine the robustness of the brain-behavior relationship further confirm the findings. Mediation analyses suggested that right IFG - left IPL connectivity mediates the association of HUCE and binge eating tendencies. Findings suggest right IFG - left IPL connectivity may serve as a crucial neurobiological underpinning of HUCE to regulate binge eating behaviors. As such, these results contribute to a novel perspective and hypotheses in elucidating developmental neuro-mechanisms related to binge eating.

Understanding Eating Disorders and the Nurse's Role in Diagnosis, Treatment, and Support

ABSTRACT

Eating disorders (EDs) are a severe type of mental illness that nurses in many settings may encounter. The three primary eating disorders-anorexia nervosa, bulimia nervosa, and binge eating disorder-are described here. Signs, symptoms, and treatment of eating disorders are outlined, along with the importance of nurses in early identification of EDs and developing therapeutic relationships with patients. A case study and elements of spiritual care are presented.

[Consenso del grupo de trabajo de los trastornos de la conducta alimentaria de SENPE (GTTCA-SENPE). Evaluación y tratamiento médico-nutricional en la anorexia nerviosa. Actualización 2023]

Anorexia nervosa (AN) is a multifactorial disorder. A possible role of the social network and the gut microbiota in pathogenesis has been added. Exogenous shocks such as the COVID19 pandemic have had a negative impact on patients with AN. The potential medical and nutritional impact of malnutrition and/or compensatory behaviors gives rise to a complex disease with a wide range of severity, the management of which requires a multidisciplinary team with a high level of subject matter expertise. Coordination between levels of care is necessary as well as understanding how to transition the patient from pediatric to adult care is essential. A proper clinical evaluation can detect possible complications, as well as establish the organic risk of the patient. This allows caregivers to tailor the medical-nutritional treatment for each patient. Reestablishing adequate nutritional behaviors is a fundamental pillar of treatment in AN. The design of a personalized nutritional treatment and education program is necessary for this purpose. Depending on the clinical severity, artificial nutrition may be necessary. Although the decision regarding the level of care necessary at diagnosis or during follow-up depends on a number of factors (awareness of the disease, medical stability, complications, suicidal risk, outpatient treatment failure, psychosocial context, etc.), outpatient treatment is the most frequent and most preferred choice. However, more intensive care (total or partial hospitalization) may be necessary in certain cases. In severely malnourished patients, the appearance of refeeding syndrome should be prevented during renourishment. The presence of AN in certain situations (pregnancy, vegetarianism, type 1 diabetes mellitus) requires specific care. Physical activity in these patients must also be addressed correctly.

Childhood trauma and outcome trajectories in patients with longstanding eating disorders across 17 years

BACKGROUND

A large proportion of patients with eating disorders (ED) report experiences of childhood trauma. Latent trajectory analysis in ED samples reveals the complexities in course and outcome and can explore the long-term impact of adverse experiences in childhood.

METHOD

A total of 84 patients with longstanding ED were included. ED symptoms were assessed by the Eating Disorder Examination interview at discharge from inpatient treatment, and at 1-, 2-, 5-, and 17-year follow-up, respectively. Change over time was examined using growth mixture modeling, allowing the number of trajectories to emerge through the data. Prevalence of childhood trauma was assessed, and its relation to class membership was tested.

RESULTS

We identified four distinct classes: patients with (a) a continuous improvement in the entire follow-up period, and scores within normal range at the end, "continuous improvement" (54.8%); (b) a high symptom level at baseline and moderate decrease over time, "high and declining" (22.6%); (c) initial ED scores below clinical cut-off and stable symptoms throughout the course, "consistently low" (14.3%); and (d) with high scores initially, and a significant increase in symptoms over time, "high and increasing" (8.3%). A history of childhood sexual abuse (CSA) was overrepresented in classes with persistently high symptom levels and poor long-term outcome DISCUSSION: Patients with longstanding ED displayed considerable diversity in trajectories of symptom change across 17 years. To improve long-term outcome, enhanced treatment of sequelae from CSA seems essential.

PUBLIC SIGNIFICANCE

Patients with longstanding eating disorders displayed four different trajectories of change in a 17-year follow-up study. Although there were significant changes over time, the majority of patients remained within similar symptom levels as they presented with at discharge from inpatient treatment. Exposure to childhood maltreatment was common within the sample. Childhood sexual abuse predicted poor long-term outcome, which highlights the importance of trauma informed care.

Non-suicidal self-injury, suicidal thoughts and behaviors in individuals with an eating disorder relative to healthy and psychiatric controls: A systematic review and meta-analysis

OBJECTIVE

Eating disorders (ED) may be associated with an increased prevalence of non-suicidal self-injury (NSSI) and suicidal thoughts and behaviors (STBs) relative to healthy (HC) and psychiatric (PC) controls. However, precise estimates of differences in prevalence between individuals with EDs and controls are unclear. We compared the prevalence of NSSI, suicidal ideation (SI), suicide attempts (SA), and deaths by suicide in controls and individuals with EDs.

METHOD

We searched MEDLINE, PsycINFO, EMBASE, and CINAHL for peer-reviewed publications reporting the prevalence of NSSI and/or STBs in EDs and HC or PC group (PROSPERO: CRD42021286754). A series of random-effects meta-analyses were conducted to estimate pooled odds ratios (ORs) for NSSI, SI, SA, and death by suicide in EDs.

RESULTS

Across 32 studies, individuals with an ED had a significantly increased prevalence of NSSI (HC: OR = 6.85 [95% CI: 3.60, 13.04]; PC: OR = 2.74 [95% CI: 1.49, 5.06]), SI (HC: OR = 3.63 [95% CI: 2.43, 5.41]; PC: OR = 3.10 [95% CI: 2.01, 4.78]), and SA (HC: OR = 5.16 [95% CI: 4.27, 6.24]; PC: OR = 1.37 [95% CI: 0.37, 4.99]) relative to HC and PC groups. A 2.93-times increased odd of death by suicide did not achieve statistical significance. There was a high-level of heterogeneity between studies.

DISCUSSION

Our findings indicate that ED populations have an increased prevalence of NSSI, SI, and SA but not death by suicide compared to controls and emphasize the need for effective clinical strategies to address these behaviors in ED populations.

PUBLIC SIGNIFICANCE

This review provides evidence for an increased prevalence of non-suicidal self-injury, suicidal ideation, and suicide attempts in populations with eating disorders compared to controls. Our findings emphasize the need for effective clinical strategies to address these behaviors in patients with eating disorders.

Risk factors for eating disorders: findings from a rapid review

BACKGROUND

Risk factors represent a range of complex variables associated with the onset, development, and course of eating disorders. Understanding these risk factors is vital for the refinement of aetiological models, which may inform the development of targeted, evidence-based prevention, early intervention, and treatment programs. This Rapid Review aimed to identify and summarise research studies conducted within the last 12 years, focusing on risk factors associated with eating disorders.

METHODS

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

RESULTS

A total of 284 studies were included. The findings were divided into nine main categories: (1) genetics, (2) gastrointestinal microbiota and autoimmune reactions, (3) childhood and early adolescent exposures, (4) personality traits and comorbid mental health conditions, (5) gender, (6) socio-economic status, (7) ethnic minority, (8) body image and social influence, and (9) elite sports. A substantial amount of research exists supporting the role of inherited genetic risk in the development of eating disorders, with biological risk factors, such as the role of gut microbiota in dysregulation of appetite, an area of emerging evidence. Abuse, trauma and childhood obesity are strongly linked to eating disorders, however less conclusive evidence exists regarding developmental factors such as role of in-utero exposure to hormones. Comorbidities between eating disorders and mental health disorders, including personality and mood disorders, have been found to increase the severity of eating disorder symptomatology. Higher education attainment, body image-related factors, and use of appearance-focused social media are also associated with increased risk of eating disorder symptoms.

CONCLUSION

Eating disorders are associated with multiple risk factors. An extensive amount of research has been conducted in the field; however, further studies are required to assess the causal nature of the risk factors identified in the current review. This will assist in understanding the sequelae of eating disorder development and in turn allow for enhancement of existing interventions and ultimately improved outcomes for individuals.

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.

The Relationship Between Age at Incarceration and Lifetime Suicide Attempt Among a Nationally Representative Sample of U.S. Adults

To examine the association between age at incarceration and lifetime suicide attempt (SA), and whether it differs by gender. Lifetime prevalence of SA was compared between respondents with no incarceration, juvenile, and adult incarceration who completed the 2012-2013 National Survey of Alcohol and Related Conditions-III (N = 36,107). We compared the odds of SA, adjusting for sociodemographic characteristics, psychiatric disorders, and childhood adverse experiences, and stratified the results by gender. Adjusted odds ratio (AOR) of SA relative to no incarceration history was 1.66 (95% Confidence Interval [CI] 1.32-2.07) for adult incarceration and 2.00 (95% CI 1.49-2.70) for juvenile incarceration. AOR of SA relative to no incarceration history was 2.14 (95% CI 1.56-2.93) for adult and 2.15 (95% CI 1.38-3.35) for juvenile incarceration in women; it was 1.73 (95% CI 1.14-2.60) in juvenile incarceration relative to no incarceration history in men. A history of incarceration may increase SA, particularly among juvenile and women offenders.

Trauma exposure and eating disorders: Results from a United States nationally representative sample

OBJECTIVE

Sexual assault, child abuse, and combat have been linked to eating disorders (EDs). However, noninterpersonal trauma is relatively understudied, and therefore it is unknown whether noninterpersonal trauma is associated with EDs. Furthermore, most previous studies do not account for multiple trauma exposures, or the relative association of traumatic events with EDs in the same statistical model.

METHOD

Multinomial regression was used to examine the association of lifetime ED diagnosis (anorexia nervosa [AN], bulimia nervosa [BN], binge eating disorder [BED]) with trauma type (sexual interpersonal, other interpersonal, war/combat, and noninterpersonal) in a nationally representative dataset of US adults in bivariate and multivariable (i.e., with all trauma types) models.

RESULTS

Sexual interpersonal trauma was significantly positively associated with AN and BED in bivariate and multivariable models. In the multivariable model, only BED was found to be equally associated with sexual interpersonal, other interpersonal, and noninterpersonal trauma.

DISCUSSION

These results indicate a strong positive association between sexual trauma and EDs, even when controlling for experiences of other trauma events. Future research should examine longitudinal mediators between trauma and EDs, especially sexual trauma, to identify what factors may explain this relationship.

PUBLIC SIGNIFICANCE STATEMENT

Individuals with eating disorders often experience traumatic events but it is unclear whether specific trauma types are more or less common in this population. This study found that only events such as rape and sexual assault are associated with anorexia nervosa, but that most trauma types are associated with binge eating disorder. Therefore, the relationship between trauma and binge eating disorder may function differently than other eating disorders.

Digital self-harm is associated with disordered eating behaviors in adults

PURPOSE

Eating-disorder psychopathology is associated with self-harm behaviors. With much time spent and many social interactions taking place online, self-cyberbullying has emerged as a new form of self-harm that is digital. The current study examined digital self-harm in adults and its associations with eating-disorder psychopathology and behaviors.

METHODS

Participants were adults (N = 1794) who completed an online cross-sectional survey. Participants reported whether they had ever posted mean things about themselves online, whether they had ever anonymously bullied themselves online and completed measures of eating-disorder psychopathology and disordered eating behaviors.

RESULTS

Digital self-harm was reported by adults across demographic characteristics and across the lifespan, although there were some significant differences in demographic characteristics associated with reported digital self-harm. Participants who engaged in digital self-harm were younger than those denying digital self-harm. Eating-disorder psychopathology and disordered eating behaviors were significantly higher among individuals reporting digital self-harm compared with age-matched controls.

CONCLUSIONS

This was the first study to examine digital self-harm among adults and the first study to examine associations of digital self-harm with eating-disorder psychopathology and disordered eating behaviors. Importantly, digital self-harm is reported by adults and therefore is not limited to youth. Our findings that digital self-harm is associated with disordered eating suggests that digital self-harm is a clinically significant topic that needs further research to inform clinical practice and clinical research.

LEVEL OF EVIDENCE

Level III, Evidence obtained from well-designed cohort or case-controlled analytic studies.

Marijuana use and suicidal behaviours among school-going adolescents in Africa: assessments of prevalence and risk factors from the Global School-Based Student Health Survey

Background

Marijuana use among adolescents, including high school students, has been consistently reported to be associated with a high incidence of suicidal behaviours. Little empirical research has been conducted on the propensity impact of marijuana use on suicidal behaviours in Africa.

Aims

To assess factors associated with marijuana use and further quantify marijuana use as an associated factor of suicidal behaviours, including repeated attempted suicide, suicidal ideation and suicide planning, among high school students in Africa.

Methods

A cross-sectional study was conducted among 32 802 school-going adolescents using the Global School-Based Student Health Survey data from 10 African countries grouped into West Africa, North Africa, South-East Africa, South Africa and East Africa subregions. Marijuana use and repeated attempted suicide were the main outcome variables. We employed double selection least absolute shrinkage and selection operator poisson regression model to assess risk factors associated with marijuana use and dominance analysis to establish ranked important and common risk factors. Inverse probability weighting poisson regression adjustment was applied to assess impact.

Results

The prevalence of marijuana use and repeated attempted suicide were 3.7% (95% CI: 3.1 to 4.3) and 6.6% (95% CI: 5.9 to 7.4), respectively. The most important risk factor for marijuana use generally across the countries and specifically in three subregions was alcohol consumption, which constituted approximately 40% of the impact. The average treatment effect on the treated (ATT) indicated that marijuana use significantly increased the risk of suicidal ideation, suicide planning and repeated attempted suicide by 12% (ATT=0.12 (95% CI: 0.02 to 0.22)), 18% (ATT=0.18 (95% CI: 0.13 to 0.22)) and 31% (ATT=0.31 (95% CI: 0.20 to 0.41)), respectively.

Conclusions

Marijuana use was significantly associated with suicidal behaviours (suicidal ideation, planning and repeated attempted suicide) among the students. To achieve Sustainable Development Goal 3.5 (to strengthen prevention and treatment of substance abuse), school-based psychosocial interventions should be streamlined to adequately assess and manage marijuana use. Targeting the most dominant risk factors in this population could translate into the reduction of suicidal behaviours in countries within Africa.