Temperament and personality in eating disorders

Are you how you eat? Aspects of self-awareness in eating disorders

Eating disorders (ED) are severe psychiatric disorders characterized by dysfunctional behaviors related to eating or weight control, with profound impacts on health, quality of life, and the financial burden of affected individuals and society at large. Given that these disorders involve disturbances in self-perception, it is crucial to comprehend the role of self-awareness in their prevalence and maintenance. This literature review presents different self-awareness processes, discussing their functioning across different levels of complexity. By deconstructing this concept, we can gain a better understanding of how each facet of self and personality relates to the symptoms of these disorders. Understanding the absence or impairment of self-awareness in ED holds significant implications for diagnosis, treatment, and overall management. By recognizing and comprehending the characteristics of self-awareness, clinicians can develop tailored interventions and evidence-based treatments for individuals with ED. Furthermore, this narrative review underscores the importance of considering temperament and personality factors in the context of ED, as temperament traits and personality characteristics may interact with self-awareness processes, influencing the development and maintenance of ED. Ultimately, the results highlight the pressing need for further research on the development of effective interventions and support strategies grounded in the aspects of self-awareness mechanisms for individuals affected by these disorders.

Personality Disorders and Attachment Trauma in Adolescent Patients with Psychiatric Disorders

This study examined how personality disorders (PD) differ with respect to gender, attachment status and traumatic childhood experiences in adolescent psychiatric inpatients. In particular, we investigated attachment-related traumatic material underlying adolescent PD. Our sample consisted of 175 inpatient adolescents aged 14 to 18 years (77% female, Mage = 15.13, SD = 1.35; 23% male, Mage =14.85, SD = 1.41). Thirty-nine patients (22%) fulfilled the diagnostic criteria for a PD according to the SCID-II PD: 51% avoidant, 13% obsessive-compulsive, 13% antisocial, 19% borderline, 2% paranoid and 2% histrionic. In the total sample, eighty-three (47%) of our inpatients were classified with an unresolved attachment status using the Adult Attachment Projective Picture System (AAP). We did not find any significant gender differences for patients with and without a PD. Our results revealed a higher percentage of unresolved attachment status in patients with a PD. The in-depth analysis of the total sample showed that patients with a PD demonstrated more traumatic material in their attachment interviews indicating a greater severity of attachment trauma. Furthermore, patients with a PD reported higher scores on emotional and physical neglect. Intervention strategies targeting traumatic attachment-related themes might be useful to treat adolescents with PD.

Is personality the key in cognitive-behavioural therapy for eating disorders? A review

The efficacy of individual cognitive-behavioural therapy (CBT) for eating disorders can be assessed by investigating the potential predictors, mediators and moderators of treatment. The present review focused on personality since its crucial role has been emphasized both by research and practice. Sixteen studies were collected, and data were extracted through a highly operationalized coding system. Overall, personality disorders were the most investigated construct; however, their influence was somewhat contradictory. A more cogent result occurred for borderline personality disorder (BPD) when considered as a moderator (not a predictor nor a mediator). Patients with a more disturbed borderline personality benefited to a greater extent from treatments including booster modules on affects, interpersonal relationships and mood intolerance, rather than symptoms exclusively. Nine additional personality dimensions, beyond BPD, were investigated sparsely, and results regarding them were barely indicative in this review. However, some of these dimensions (e.g., affective lability and stimulus-seeking behaviours) could be traced back to BPD, thereby strengthening evidence of the role of borderline disorder as a moderator. Although research on the relationship between personality and eating disorders needs to be increased and methodologically improved, personality, taken as a whole, emerged as a promising variable for enhancing the efficacy of CBT.

Asceticism, perfectionism and overcontrol in youth with eating disorders

PURPOSE

Personality traits such as perfectionism and asceticism, and combinations of these traits (i.e., overcontrol) have been related to eating disorder (ED) diagnosis, symptoms, and chronicity in adult patients with EDs. However, as limited evidence exists in adolescents, the aim of the present study was to examine these links in a clinical sample of adolescents with EDs.

METHOD

A retrospective chart review was conducted on 178 adolescents (91% females; M_age = 15.73 years, SD = 1.31) receiving services at a tertiary care pediatric ED program. An examination of variability in mean levels of perfectionism, asceticism, and overcontrol across ED symptom groups (restrictive and binge/purge ED subtypes) was conducted to learn of diagnostic differences, while correlations were used to explore the association of these personality traits with comorbid anxiety and depressive symptoms. Hierarchical linear regression was used to assess whether overcontrol was related to length of stay (LOS) in an inpatient program.

RESULTS

Results indicated that adolescents with binge-purge symptoms had higher levels of perfectionism, asceticism and overcontrol compared to those with restrictive symptoms, and that greater levels of perfectionism, asceticism and overcontrol were associated with elevated depression and anxiety symptoms. Additionally, overcontrol predicted greater LOS in the inpatient ED program.

CONCLUSION

Results suggest the importance of assessing, monitoring and targeting overcontrol in treatment for adolescents with EDs given its impact on comorbid symptoms and LOS.

LEVEL OF EVIDENCE

Level III, evidence obtained from case-control analytic studies.

Unresolved Attachment Mediates the Relationship Between Childhood Trauma and Impaired Personality Functioning in Adolescence

The present study investigates the mediating effect of attachment trauma on the relationship between childhood maltreatment and personality functioning in 199 adolescents (12-18 years) using a novel approach of an in-depth analysis of attachment-related traumatic contents during an attachment interview (AAP). Our findings demonstrate that adolescents with a high amount of traumatic attachment-related material show a lower resilience when facing traumatic childhood experiences, resulting in a greater severity of personality dysfunction. In particular, the associations between emotional abuse and neglect and the domains of identity, empathy, self-direction, and intimacy were mediated by the severity of attachment trauma. These results advance our understanding of the different nuances of attachment-related traumatic material and how they might shape personality structure in an adolescent age group.

Bingeing, Purging, and Suicidal Ideation in Clinical and Non-Clinical Samples of Youth

Suicidal ideation is a serious mental health concern reported by adolescents. Despite understanding of increased suicidal ideation in patients with eating disorders (EDs) and obesity, few studies have compared how disordered eating (bingeing, vomiting and over exercising) is associated with suicidal ideation in clinical and non-clinical samples of youth across the ED and weight spectrum. The present study aimed to 1) comparatively examine rates of suicidal ideation and disordered eating behaviors in clinical samples of youth with EDs, complex obesity, or from the community, and 2) examine whether disordered eating was associated with suicidal ideation above and beyond age, body mass index, diagnosis, treatment-seeking status, and depressive symptoms in large samples of males vs. females in an attempt to understand whether these behaviors should lead to concern regarding suicidal ideation. Data from charts on treatment-seeking adolescents diagnosed with either an ED (N = 315), severe complex obesity (N = 212), and from the community (N = 3036) were pooled together for comparative purposes. Results showed that suicidal ideation was higher in youth seeking treatment for an ED (50.2%) and obesity (23.7%) as compared to youth from the community (13%). Binary logistic regression analyses revealed that vomiting (OR = 1.73 for females, 8.17 for males) and over-exercising (OR = 1.47 for females, 1.68 for males) was significantly associated with suicidal ideation in both males and females. Findings underscore the importance of screening for suicidal ideation in youth who report vomiting or over-exercising despite diagnostic presentation, age, weight, or treatment setting.

Affective temperaments and eating psychopathology in anorexia nervosa: Which role for anxious and depressive traits?

BACKGROUND

Anorexia nervosa (AN) is a severe mental illness. Personality traits and comorbidity with affective and anxiety disorders are key-aspects of its pathogenesis but little attention has been paid so far to affective temperaments in AN. Also, childhood anxiety is proposed to impact on AN clinical severity. Therefore, we aimed to investigate if affective temperaments could be related to AN eating psychopathology also clarifying if those with low versus high scores on depressive and anxious temperaments could differ in AN clinical current and lifetime severity.

METHODS

One-hundred and forty-seven inpatients with AN were consecutively recruited. All participants completed: Temperament Evaluation of Memphis, Pisa, Paris and San Diego-Autoquestionnaire, Eating Disorder Examination Questionnaire, State Trait Anxiety Inventory, Beck Depression Inventory. Clinical data were collected upon admission.

RESULTS

Regression models showed that all affective temperaments were associated with eating psychopathology (eating restraint and eating, shape, and weight concerns); however, when controlling for confounders, only the anxious temperament remained significant. Also, those patients with higher scores on depressive and anxious temperaments reported higher current and lowest lifetime body mass index (BMI).

LIMITATIONS

Only inpatients were recruited; self-report assessments were used and follow-up data are lacking.

CONCLUSIONS

Results from this study support the association between affective (anxious in particular) temperament traits and the presence of altered eating psychopathology in AN. Also, higher traits of depressive and anxious temperaments reported higher current and lowest lifetime BMI. Should these findings be confirmed, the assessment of the anxious temperament could fruitfully inform prevention and treatment interventions for AN.

Association between binge eating disorder and psychiatric comorbidity profiles in patients with obesity seeking bariatric surgery

BACKGROUND

Eating disorders could be an important factor in the development of obesity, but psychiatric comorbidities are very heterogeneous in patients with obesity. Moreover, relationship between binge eating disorder and other psychiatric comorbidities is not clear. Our objective was to identify psychiatric comorbidity profiles of bariatric surgery candidates and to analyze the association between these profiles and binge-eating disorder.

METHODS

Our sample consisted of bariatric surgery candidates (n = 92) with mean Body Mass Index at 41.3 ± 0.6 kg/m². To construct profiles, we classified patients according to their psychiatric comorbidities using cluster analysis techniques. We used logistic regression modelling to analyze associations between the presence of binge-eating disorder and the psychiatric comorbidity profiles.

RESULTS

We identified four profiles of psychiatric phenotypes. One of these profiles was not associated with any psychiatric disorder. Binge eating disorder was significantly associated with two profiles (p < 0.05): a profile with bipolar and obsessive-compulsive disorder (OR = 7.7 [1.7; 35.1]), and a profile with bipolar and panic disorder (OR = 20.7 [3.1; 137.5]).

CONCLUSIONS

Our multidimensional approach identified certain profiles specifically associated with binge-eating disorder in patients with obesity seeking bariatric surgery. These results may lead to a better understanding of the relationship between obesity and psychiatric disorders.

Personality traits associated with eating disorders and obesity in young Argentineans

PURPOSE

Few studies have been conducted on Latin American population to explore how facets of personality, eating disorders, and obesity are related. The main purpose of this study was to explore the personality traits among patients diagnosed with anorexia nervosa (n = 23), bulimia nervosa (n = 32), and obesity (n = 16), in comparison to control group (n = 82).

METHODS

A total of 153 individuals participated in the study, 125 were female (81.7%) and 28 were male (18.3%). Participants' ages ranged between 18 and 37 years (mean 24.21, SD 4.84) and they were all native Spanish speakers, living in the city of Córdoba, Argentina. Participants completed the Eating Disorder Inventory-2 and the IPIP-NEO Personality Inventory.

RESULTS

In this study, the subjects diagnosed with anorexia in comparison to control group showed high and significant scores in neuroticism and openness to experience and low scores on agreeableness, conscientiousness, and extraversion. For their part, the subjects diagnosed with bulimia, in comparison to the control group, had higher and significant scores on neuroticism, extraversion, and conscientiousness. Lastly, the patients with obesity in comparison to the control group presented high and significant scores on neuroticism and low and significant scores on agreeableness, extraversion, conscientiousness, and openness to experience.

CONCLUSIONS

The results obtained from this study support previous research devoted to the study of eating disorders and obesity. This situation favors the valid and relevant nature of the study of personality traits as factors that contribute to explaining behavior disorders associated with eating pathologies. This is a preliminary and necessary step for future research to examine the risky combination of personality traits and anorexia, bulimia, and obesity in the local context using a larger and more generalized sample.

Are Personality Characteristics as Measured by the Temperament and Character Inventory (TCI) Associated with Obesity Treatment Outcomes? A Systematic Review

PURPOSE OF REVIEW

Some personality traits seem to be associated with obesity, but there is little information available regarding their association with obesity treatment outcomes. The aim of this systematic review was therefore to assess the associations between personality traits-evaluated by means of the Temperament and Character Inventory (TCI)-and outcomes of obesity treatment, including attrition, weight loss, and weight loss maintenance. The PubMed database was searched, and studies were screened as per the Preferred Reporting Items for Systematic Review and Meta-Analyses (PRISMA) guidelines, and data were collated using a narrative approach.

RECENT FINDINGS

Of the 886 articles retrieved, 9 studies assessing personality traits by means of the TCI in participants with obesity met the inclusion criteria and were reviewed. This approach revealed three main findings: (i) only one study found that attrition rate-during a 6-month behavioral weight loss program-is predicted by low reward dependence scores at baseline; (ii) two studies found that lower novelty-seeking and higher self-directedness scores at baseline positively predict short-term weight-loss magnitude; and (iii) four studies found that higher persistence and lower novelty-seeking scores at baseline predicted weight maintenance at 12 and 24 months. Novelty-seeking and self-directedness traits appear to be predictors of short-term weight loss (≤ 6 months), and persistence and novelty-seeking traits may be related to long-term weight loss maintenance (≥ 12 months), although great uncertainty still exists regarding predictors of attrition.

Facets of Impulsivity and Compulsivity in Women with Anorexia Nervosa

This study sought to investigate independent associations of impulsivity and compulsivity with eating disorder (ED) symptoms. Women (N = 81) with full or subthreshold Diagnostic and Statistical Manual of Mental Disorders IV anorexia nervosa (AN) completed a semi-structured interview and self-report questionnaires. Multiple regression analyses were conducted using ED symptoms as dependent variables and facets of impulsivity and compulsivity as predictor variables (controlling for body mass index and AN diagnostic subtype). For impulsivity facets, lack of perseverance was uniquely associated with eating concern, shape concern and restraint, whereas negative urgency was uniquely associated with eating concern and frequency of loss of control eating; neither sensation seeking nor lack of premeditation was uniquely associated with any ED variables. Compulsivity was uniquely associated with restraint, eating concern and weight concern. Results support independent associations of impulsivity and compulsivity with ED symptoms in adults with AN, suggesting potential utility in addressing both impulsive and compulsive processes in treatment. Copyright © 2017 John Wiley & Sons, Ltd and Eating Disorders Association.