Risk of eating disorders in immigrant populations

OBJECTIVE

The risk of certain psychiatric disorders is elevated among immigrants. To date, no population studies on immigrant health have addressed eating disorders. We examined whether risk of eating disorders in first- and second-generation immigrants differs from native-born Danes and Swedes.

METHOD

All individuals born 1984-2002 (Danish cohort) and 1989-1999 (Swedish cohort) and residing in the respective country on their 10th birthday were included. They were followed up for the development of eating disorders based on out-patient and in-patient data.

RESULTS

The risks of all eating disorder types were lower among first-generation immigrants compared to the native populations: Incidence-rate ratio (95% confidence interval) was 0.39 (0.29, 0.51) for anorexia nervosa, 0.60 (0.42, 0.83) for bulimia nervosa, and 0.62 (0.47, 0.79) for other eating disorders in Denmark and 0.27 (0.21, 0.34) for anorexia nervosa, 0.30 (0.18, 0.51) for bulimia nervosa, and 0.39 (0.32, 0.47) for other eating disorders in Sweden. Likewise, second-generation immigrants by both parents were at lower risk, whereas those with only one foreign-born parent were not.

CONCLUSION

The decreased risk of eating disorders among immigrants is opposite to what has been observed for other psychiatric disorders, particularly schizophrenia. Possible explanations include buffering sociocultural factors and underdetection in health care.

Insidious: The relationship between patients and their eating disorders and its impact on ED symptoms, illness duration and self-image

Patients with eating disorders (EDs) often spontaneously talk about their disorder in terms of a symbolic other (a demon, a voice, a guardian). Further, externalizing exercises where patients are encouraged to separate their true self from their ED self are common in some treatment approaches. Yet, no previous quantitative study has investigated this phenomenon. We examined the patient-ED relationship (using the interpersonal structural analysis of social behavior methodology) and its implications for ED symptoms, illness duration and self-image. Participants were 16–25 year old female patients (N = 150) diagnosed with anorexia nervosa (N = 55), bulimia nervosa (N = 33) or eating disorder not otherwise specified (N = 62). Results suggested that patients had comprehensible and organized relationships with their EDs. EDs were primarily experienced as acting critical and controlling towards patients. Higher ED control was associated with more ED symptoms and longer illness duration, especially when coupled with patient submission. Patients reacting more negatively towards their EDs than their EDs were acting towards them had lower symptom levels and more positive self-images. Externalizing one's ED, relating to it like a symbolic other, seemed to make sense to patients and depending on its quality seemed to influence ED symptoms, illness duration and self-image. We put forward both clinical and theoretical implications based on the assumption that the patient-ED relationship may function in similar ways as real-life interpersonal relationships do.

Disclosure of interest

The authors have not supplied their declaration of competing interest.

Self-Image and Risk of Suicide in Eating Disorders

Introduction

Suicide risk is increased in eating disorders (ED), and detection is key to prevention. Self-image as operationalized in the structural analysis of social behavior (SASB) model has been shown to be associated with symptoms, treatment dropout, and outcome. SASB is a circumplex organizing self-directed behaviors along affiliation (love vs. hate) and autonomy (set free vs. control) dimensions. In a recent study, SASB related to health care-detected suicide attempts in ED. Methodology in that study ensured high specificity but risked lower sensitivity in suicide variables, and with such a high-threat outcome, research is needed on additional variables related to risk.

Objectives and aims

We aimed to study associations between SASB self-image and clinician- and self-rated suicidality at presentation and predicted over 12 months in ED patients.

Methods

Adult patients (n = 551) from a Swedish clinical database included 19% anorexia, 32% bulimia, 7% binge ED, and 42% other ED. We ran separate regression models for these diagnostic groups using SASB questionnaire data, also controlling for general psychiatric and ED symptoms, and in longitudinal models including baseline of each outcome.

Results

SASB alone was associated with suicidality at presentation (9–67% variance explained) and predictively over 12 months (7–29%), and in the majority of models explained additional variance beyond baseline and clinical variables. Both affiliation and autonomy related to dependent variables in diagnosis-specific patterns.

Conclusions

The findings have implications for both theory and detection tools for suicide risk, as well as suggesting intervention targets to mitigate risk in treatment based on the well-validated SASB theory.

Disclosure of interest

The authors have not supplied their declaration of competing interest.

Paternal age at childbirth and eating disorders in offspring

BACKGROUND

Advanced paternal age at childbirth is associated with psychiatric disorders in offspring, including schizophrenia, bipolar disorder and autism. However, few studies have investigated paternal age's relationship with eating disorders in offspring. In a large, population-based cohort, we examined the association between paternal age and offspring eating disorders, and whether that association remains after adjustment for potential confounders (e.g. parental education level) that may be related to late/early selection into fatherhood and to eating disorder incidence.

METHOD

Data for 2 276 809 individuals born in Sweden 1979-2001 were extracted from Swedish population and healthcare registers. The authors used Cox proportional hazards models to examine the effect of paternal age on the first incidence of healthcare-recorded anorexia nervosa (AN) and all eating disorders (AED) occurring 1987-2009. Models were adjusted for sex, birth order, maternal age at childbirth, and maternal and paternal covariates including country of birth, highest education level, and lifetime psychiatric and criminal history.

RESULTS

Even after adjustment for covariates including maternal age, advanced paternal age was associated with increased risk, and younger paternal age with decreased risk, of AN and AED. For example, the fully adjusted hazard ratio for the 45+ years (v. the 25-29 years) paternal age category was 1.32 [95% confidence interval (CI) 1.14-1.53] for AN and 1.26 (95% CI 1.13-1.40) for AED.

CONCLUSIONS

In this large, population-based cohort, paternal age at childbirth was positively associated with eating disorders in offspring, even after adjustment for potential confounders. Future research should further explore potential explanations for the association, including de novo mutations in the paternal germline.

Methodology in Subliminal Psychodynamic Activation: The Next Step in the Debate

Subliminal psychodynamic activation methodology has recently been the subject of an exchange of views between Birgegärd and Sohlberg (1999) and Fudin (2000). The agreements and some remaining points of contention are summarized here. The main difference of opinion appears to concern unconscious verbal encoding in relation to subjective experience in subliminal stimulation and whether subliminal psychodynamic activation results are unreliable until a full explanation of how verbal encoding works is at hand. We conclude that clarifying perspectives is important and that those suggesting alternative explanations of results on subliminal psychodynamic activation must now empirically investigate their claims.

How do eating disorder patients eat after treatment? Dietary habits and eating behaviour three years after entering treatment

OBJECTIVE

Improvements in psychological symptoms and weight have often been demonstrated following eating disorder (ED) treatment, but it is not clear to what extent eating behaviour itself is normalised. This cross-sectional study aimed to investigate dietary habits and eating behaviour in ED patients three years after entering treatment.

METHOD

ED patients (N=70) were divided into those who had recovered (N=36), and those who still suffered from bulimic (N=18) or anorexic (N=16) psychopathology. Patients were compared to a female normal control group of similar age (N=61), and assessments were made on a dietary questionnaire, as well as the BDI, EDI-2, SASB and SCL-90.

RESULTS

With some notable exceptions eating patterns in recovered patients resembled those of controls. Dieting was most evident in recovered and current bulimic patients, while restrictive eating and vegetarianism was found in recovered or current anorexic patients. A majority of the patients with ongoing EDs avoided fatty foods.

DISCUSSION

Risk behaviours such as restrictive eating, dieting and food avoidance, may have an important impact on relapse rates, and it may therefore be imperative to continue to monitor eating behaviour in ED patients following treatment termination to ensure better long-term outcome.

Psychiatric co-morbidity in patients with eating disorders

Background

Co-morbidity is common among patients with eating disorders (ED) and some previous studies have reported a prevalence of over 80%. However, research in the area has been sparse and no previous studies include both children and adults, and both genders.

Methods

Data from the Stepwise quality control database, a large-scale Internet based data collection system for specialized ED care in Sweden, were used. The database includes data from children and adults and both genders. Stepwise contains structured diagnostic interviews for ED- and other DSM-IV Axis I diagnostics (the Structured Eating Disorder Interview and the M.I.N.I.Kid and SCID-I interviews). Part one is performed by trained staff and contains SEDI and SCID-I. Part two is made up of self-rating questionnaires and contains EDE-Q, and CPRS. The system is used in 32 treatment units (in and out patients) and comprises up to date1917 patients from all over Sweden.

Results

96,4% of the patients with ED was women and 3,6% were men. 74,8% of the patients with ED also had at least one other Axis I disorder. The most common type of diagnosis was anxiety (61%) followed by mood disorder (56%). 19% had substance use disorders. No gender differences regarding co-morbidity or specific ED diagnosis were observed.

Conclusion

This study confirms previous results showing that the prevalence in co-morbidity is high among patients with ED. The high level of co-morbidity in patients with ED may change the approach in treatment and calls for more tailored treatment programs.