Prevalence,incidence, and natural course of anorexia and bulimia nervosa among adolescents and young adults

We aimed to assess the prevalence, incidence, age-of-onset and diagnostic stability of threshold and subthreshold anorexia nervosa (AN) and bulimia nervosa (BN) in the community. Data come from a prospective-longitudinal community study of 3021 subjects aged 14–24 at baseline, who were followed up at three assessment waves over 10 years. Eating disorder (ED) symptomatology was assessed with the DSM-IV/M-CIDI at each wave. Diagnostic stability was defined as the proportion of individuals still affected with at least symptomatic eating disorders (EDs) at follow-ups. Baseline lifetime prevalence for any threshold ED were 2.9 % among females and 0.1 % among males. For any subthreshold ED lifetime prevalence were 2.2 % for females and 0.7 % for males. Symptomatic expressions of EDs (including core symptoms of the respective disorder) were most common with a lifetime prevalence of 11.5 % among females and 1.8 % among males. Symptomatic AN showed the earliest onset with a considerable proportion of cases emerging in childhood. 47 % of initial threshold AN cases and 42 % of initial threshold BN cases showed at least symptomatic expressions of any ED at any follow-up assessment. Stability for subthreshold EDs and symptomatic expressions was 14–36 %. While threshold EDs are rare, ED symptomatology is common particularly in female adolescents and young women. Especially threshold EDs are associated with a substantial risk for stability. A considerable degree of symptom fluctuation is characteristic especially for subthreshold EDs.     

Mortality in eating disorders: A follow-up study of adult eating disorder patients treated in tertiary care, 1995–2010

Elevated mortality risk in anorexia nervosa has been established, but less is known about the outcomes of bulimia nervosa and binge eating disorder. In this follow-up study we determined mortality in adults (N=2450, 95% women) admitted to the eating disorder clinic of the Helsinki University Central Hospital in the period 1995–2010. Most of the patients (80.7%) were outpatients. For each patient four controls were selected and matched for age, sex and place of residence. The matching was taken into account by modelling end-point events using Cox's proportional hazard model. The hazard ratio (HR) for all-cause mortality was 6.51 (95% CI 3.46–12.26) in broad anorexia nervosa (AN), 2.97 (95% CI 1.90–4.65) in broad bulimia nervosa (BN), and 1.77 (95% CI 0.60–5.27) in binge eating disorder (BED). Mortality risk in broad AN was highest during the first years after admission but declined thereafter, while in broad BN the mortality risk started to rise two years after the first admission. The HR for suicide was elevated both in broad AN (HR 5.07; 95% CI 1.37–18.84) and in broad BN (HR 6.07; 95% CI 2.47–14.89). Results show that eating disorders are associated with increased mortality risk even when specialised treatment is available.     

Association between ADHD drug use and injuries among children and adolescents

To study the association between attention deficit hyperactivity disorder (ADHD) drug use and the incidence of hospitalization due to injuries. A random sample of 150,000 persons (0–18 years) was obtained from the Dutch PHARMO record linkage system. An ADHD medication cohort as well as an up to six age/sex/index date sampled control cohort with no history of ADHD drug use was formed. Differences in incidence of hospitalization due to injuries were stratified for age and sex and compared prior, during and after exposure on ADHD drugs. The overall incidence of hospital admissions for injuries was two times higher in the ADHD medication cohort [incidence rate ratios (IRR) 2.2 (95 % CI 1.6–2.9)]. The incidence rate for injuries during exposure to ADHD drugs was lower in the exposed period compared to the period prior to ADHD drug use, although the difference was not statistically significant [IRR 0.68 (95 % CI 0.29–1.60)]. The relative risk for injuries was almost five times higher in the ADHD medication cohort among those who concomitantly used other psychotropics [IRR 4.8 (95 % CI 1.4–16.9)]. Risk for injuries was highest in 12–18 years olds. Children and adolescents using ADHD medication showed a twofold risk for hospital admissions for injuries. ADHD drug use might diminish the increased injury risk, but still overall risk is higher than in age/sex sampled children and adolescents without treatment with ADHD drugs. Use of ADHD and concomitant psychotropics increases the risk for injuries compared to only ADHD drug use.     

A two-stage epidemiologic study on prevalence of eating disorders in female university students in Wuhan,China

Background

The community prevalence of eating disorders among Chinese young women may now be similar to their western counterparts.

Aim

To investigate the prevalence of eating disorders (ED) in female university students in Wuhan, China, using a two-stage design.

Method

In stage one, 99.1 % (N = 8,444) of eligible students (N = 8,521) completed the eating disorder inventory-1 (EDI-1) and a survey of relevant anthropomorphic data. A total of 421 women scored above the cut-off for EDE-1, as defined by a set of criteria similar to those of Keski-Rahkonen (Int J Eat Disord 39:754–762, 2006). 257 (61 %) of these case-positive women and a random sample of case-negative women (312 out of 8,023, 4 %) whose scores did not exceed the defined cut-off were interviewed using the eating disorder examination (EDE) and the structured clinical interview for DSM-IV axis I disorders (SCID-I).

Results

On interview with the SCID-I, 79 women were diagnosed with an ED. Among them, 10 had anorexia nervosa (AN), 21 bulimia nervosa (BN), and 48 binge eating disorder (BED) The results showed a prevalence rate of 1.05 % (95 % CI = 0.02–2.08) for AN, 2.98 % (95 % CI = 1.21–4.74) for BN, and 3.53 % (95 % CI = 1.75–5.30) for BED.

Conclusion

The prevalence of ED among female university students in China is now similar to that of their western counterparts, and BED is the most common ED followed by BN and AN similarly.     

The prevalence of eating disorders in adolescents with idiopathic scoliosis

This study examines the hypothesis of an association between adolescent idiopathic scoliosis (AIS) and eating disorders (EDs). A population of young females affected by AIS has been interviewed for a possible diagnosis of EDs. The proportion of individuals with EDs resulted significantly larger than normative epidemiological data: Prevalences were 9.2% for anorexia nervosa (AN), 7.7% for bulimia nervosa (BN) and 5.3% for eating disorders not otherwise specified (EDNOS). The relationship between EDs and AIS was further tested through a second analysis. Severity of the rachides pathology was correlated with the presence of AN. Our study supports the hypothesis of a comorbidity between AIS and EDs: Some possible clinical explanations for this association are discussed.     

Prenatal stress and epilepsy in later life: a nationwide follow-up study in Denmark

PURPOSE: To examine whether prenatal exposure to maternal bereavement is associated with an increased risk of epilepsy in the first decades of life. METHODS: We conducted a population-based cohort study of children (N=1,553,966) born in Denmark from 1978 to 2004. A total of 39,867 children born to women who lost a close relative while pregnant or within 1 year before the pregnancy were included in the exposed cohort. The main outcome of interest was hospitalization due to epilepsy (ICD 8 codes 345.00-345.99, ICD 10 codes G40.0-G41.9). We used log-linear Poisson models to estimate incidence rate ratios (IRRs). RESULTS: The exposed children had a risk of epilepsy similar to that of unexposed children (IRR 1.06, 95% CI 0.96-1.18). The IRRs were 1.08 (95% CI 0.89-1.31) for the children of women who lost a child, and 1.02 (95% CI 0.91-1.15) for the children of women who lost a partner, parent or sibling. The IRRs did not differ according to the timing of exposure or the causes of death (unexpected causes and other causes). CONCLUSIONS: Our data do not suggest any strong association between prenatal stress and epilepsy in the first decades of life.     

Very preterm birth, birth trauma, and the risk of anorexia nervosa among girls.

BACKGROUND: Obstetrical complications, based on parental recall, have been reported to be associated with development of anorexia nervosa. We used prospectively collected data about pregnancy and perinatal factors to examine the subsequent development of anorexia nervosa. METHODS: This population-based, case-control study was nested in cohorts defined by all liveborn girls in Sweden from 1973 to 1984. From the Swedish Inpatient Register, 781 girls had been discharged from any hospital in Sweden with a main diagnosis of anorexia nervosa at the age of 10 to 21 years. For each case, 5 controls were randomly selected, individually matched by year and hospital of birth (n = 3905). Conditional logistic regression was used to calculate odds ratios (ORs) and 95% confidence intervals (CIs) for potential risk factors. RESULTS: Increased risk of anorexia nervosa was found for girls with a cephalhematoma (OR, 2.4; 95% CI, 1.4-4.1) and for very preterm birth (< or = 32 completed gestational weeks) (OR, 3.2; 95% CI, 1.6-6.2). In very preterm births, girls who were small for gestational age faced higher risks (OR, 5.7; 95% CI, 1.1-28.7) than girls with higher birth weight for gestational age (OR, 2.7; 95% CI, 1.2-5.8). CONCLUSIONS: Our results show that perinatal factors, possibly reflecting brain damage, had independent associations with anorexia nervosa. These risk factors may uncover the mechanisms underlying the development of the disorder, even if only a fraction of cases of anorexia nervosa may be attributable to perinatal factors.     

Self-image of anorexic and bulimic female adolescents

The purpose of this study was to assess the self-concept using the Offer Self-Image Questionnaire (OSIQ) in groups of Finnish adolescent girls with anorexia nervosa and bulimia nervosa, and a normal control group without an eating disorder. A total of 135 adolescent girls aged 16-21 (10 with anorexia nervosa, 10 with bulimia nervosa and 115 normal controls) were investigated using the OSIQ. In comparisons, girls with bulimia nervosa differed significantly from both girls with anorexia nervosa and normal controls with regard to severity on almost all of the OSIQ scales. Girls with anorexia nervosa differed from normal controls only in Emotional Tone and Sexual Attitudes. The findings suggest that anorexia nervosa and bulimia nervosa should be handled as different groups in assessing self-image with the OSIQ.     

Self-image of anorexic and bulimic female adolescents

The purpose of this study was to assess the self-concept using the Offer Self-Image Questionnaire (OSIQ) in groups of Finnish adolescent girls with anorexia nervosa and bulimia nervosa, and a normal control group without an eating disorder. A total of 135 adolescent girls aged 16-21 (10 with anorexia nervosa, 10 with bulimia nervosa and 115 normal controls) were investigated using the OSIQ. In comparisons, girls with bulimia nervosa differed significantly from both girls with anorexia nervosa and normal controls with regard to severity on almost all of the OSIQ scales. Girls with anorexia nervosa differed from normal controls only in Emotional Tone and Sexual Attitudes. The findings suggest that anorexia nervosa and bulimia nervosa should be handled as different groups in assessing self-image with the OSIQ.     

Full-syndrome,partial-syndrome and subclinical eating disorders: an epidemiological study of female students in Southern Italy

We screened a sample of 919 female students, aged 13–19 years, by means of the EDI 2 and GHQ-28 questionnaires. Those students identified as being at risk for an eating disorder (281 subjects) underwent a psychiatric interview. We found 2 cases of full-syndrome anorexia nervosa (0.2%), 21 cases of full-syndrome bulimia nervosa (2.3%) and 2 cases of full-syndrome binge-eating disorder (0.2%). Moreover, 35 girls (3.8%) met the criteria for partial-syndrome and 98 girls (10.7%) fulfilled the criteria for subclinical eating disorders. Subjects with partial-syndrome and subclinical eating disorders had higher scores than those with no diagnosis, but lower scores than students with full-syndrome eating disorders, on both the EDI 2 and GHQ-28 questionnaires. A follow-up of subjects with partial-syndrome and subclinical eating disorders is now in progress.     

Fetal growth restriction and birth defects with newer and older antiepileptic drugs during pregnancy

The primary aim of this study was to assess the risks of fetal growth restriction and birth defects in children exposed prenatally to newer and older antiepileptic drugs, using an unselected epilepsy cohort. Deliveries recorded in the compulsory Medical Birth Registry of Norway 1999–2011 formed the study population. All 2,600 children exposed to antiepileptic drugs during pregnancy were compared to all 771,412 unexposed children born to women without epilepsy. Children of untreated mothers with epilepsy served as an internal control group. The main outcomes were small for gestational age birth weight and head circumference, and major congenital malformations. Children exposed to antiepileptic drugs had a moderate risk of growth restriction. Infants exposed to topiramate had a considerable risk of microcephaly (11.4 vs. 2.4 %; OR 4.8; CI 2.5–9.3) and small for gestational age birth weight (24.4 vs. 8.9 %; OR 3.1; 95 % CI 1.9–5.3). Carbamazepine, lamotrigine, levetiracetam, oxcarbazepine, gabapentin, and pregabalin had low malformation rates, whereas topiramate tended to have an elevated malformation rate. Valproate monotherapy was associated with a significant risk of birth defects (6.3 vs. 2.9 %; OR 2.5; CI 1.6–3.8), and specifically with septal heart defects and hypospadias. For mothers using valproate, the presence of major birth defect in one child was associated with a markedly increased risk for the siblings (42.9 vs. 6.7 %; OR 10.4; CI 2.3–46.7). Children of untreated mothers with epilepsy had malformation risk similar to the reference group. In conclusion, topiramate was associated with a substantial risk of fetal growth restriction, and possibly an increased malformation rate. Other newer-generation antiepileptic drugs had a low malformation rate. Valproate monotherapy had a significant malformation risk, especially in repeated pregnancies.     

The Transdiagnostic Nature of Metacognitions in Women With Eating Disorders

There is emerging evidence for the important role of metacognitions in the presentation of eating disorders (EDs); however it is unclear to what extent these metacogntions are transdiagnostic. This study used a mixed methods convergent design to explore this question by triangulating both qualitative and quantitative data from 27 women, aged 18–55 years, with diagnoses of anorexia nervosa, bulimia nervosa, or eating disorders not otherwise specified. The results indicated that metacognitions in EDs may be transdiagnostic and may in part explain temporal migration between diagnoses and the degree of comorbidity associated with EDs.     

Postremission predictors of relapse in women with eating disorders

OBJECTIVE: The authors sought to evaluate patterns and predictors of relapse among women with eating disorders. METHOD: Interviews were conducted biannually to annually to assess symptoms of eating disorders, axis I disorders, treatment, and psychosocial function on a weekly basis for women diagnosed with anorexia nervosa (N=136) or bulimia nervosa (N=110) and prospectively followed for 9 years. At the last follow-up, 229 (93%) of the subjects had been retained in the study group. RESULTS: Relapse occurred in 36% of the women with anorexia nervosa and 35% of the women with bulimia nervosa. Women with intake diagnoses of anorexia nervosa, restricting subtype, tended to develop bulimic symptoms during relapse, whereas women with intake diagnoses of anorexia nervosa, binge-purge subtype, or bulimia nervosa tended to return to bulimic patterns during relapse. Greater body image disturbance contributed to a risk of relapse in both eating disorders, and worse psychosocial function increased the risk of relapse in bulimia nervosa. CONCLUSIONS: These results may explain the long-term efficacy of interpersonal therapy for bulimia nervosa and suggest that focused body image work during relapse prevention may enhance long-term recovery from eating disorders.     

Longitudinal relationships between childhood, adolescent, and adult eating disorders.

OBJECTIVE: This study investigates the longitudinal course of eating problems from childhood though adulthood.The following questions are answered: (1) How stable are eating disorder symptoms and diagnoses over a 17-year interval from childhood to adulthood? (2) Do early childhood eating problems predict the occurrence of eating disorders in adulthood? METHOD: An epidemiologically selected sample of approximately 800 children and their mothers received DSM-based structured psychiatric assessments in 1975, 1983, 1985, and 1992. The stability of full DSM diagnostic criteria for anorexia nervosa and bulimia nervosa, symptom scales derived from DSM criteria, and individual symptoms such as binge eating or dieting between early adolescence, late adolescence, and young adulthood was examined. RESULTS: Early adolescent bulimia nervosa is associated with a 9-fold increase in risk for late adolescent bulimia nervosa and a 20-fold increase in risk for adult bulimia nervosa. Late adolescent bulimia nervosa is associated with a 35-fold increase in risk for adult bulimia nervosa. Symptom scale scores for anorexia nervosa and bulimia nervosa correlate in the 0.3 to 0.5 range from early to late adolescence and young adulthood. For both anorexia nervosa and bulimia nervosa, gender, as well as eating symptoms at early and late adolescence, all predict young-adult eating disorder symptoms. Risk factors for the later development of eating disorders comprise eating conflicts, struggles with food, and unpleasant meals in early childhood. CONCLUSION: The presence of eating problems in early childhood or an eating disorder in adolescence confers a strong risk for an eating disorder in young adulthood.     

The prevalence of eating disorders among university students and the relationship with some individual characteristics

OBJECTIVE: The purpose of this study was to determine the prevalence of eating disorders (EDs) among university students in a rural area of Turkey and to compare groups based on the sociodemographic data, history of child abuse and neglect, family roles and self-esteem with a normal control group regarding EDs. METHOD: Subjects who were chosen by simple random sampling method were consisted of 980 Cumhuriyet University students who agreed to participate out of the 1003 total students and were given a sociodemographic information form and an Eating Attitudes Test (EAT). Students who scored above a cutoff level on the EAT were interviewed using the Structured Clinical Interview for DSM-IV axis I Disorders (SCID-I), Clinical Version. The Rosenberg Self-Esteem Scale, Family Assessment Device (FAD) and Childhood Abuse and Neglect Questionnaire Form were given to subjects in the control and study groups. RESULTS: Seventy-one of the 951 students (492 female, 459 male) who correctly filled out the EAT had a score above the cutoff level of 30 or higher. Of these 71 students, 21 (2.20%) were found to have an eating disorder based on the SCID-I. No subjects were found to have anorexia nervosa. Eighteen of the 21 subjects were female. Of these 18 female students, 15 (1.57%) were found to have bulimia nervosa and three (0.31%) were found to have binge eating disorder (BED). All of the three male subjects were diagnosed with BED (0.31%). The self-esteem of those in the study group was lower than those in the control group (p < 0.001). Subjects in the study group had more frequent histories of sexual and emotional abuse in childhood (p < 0.05). Also, in the study group scores showing communication in FAD families, unity and emotional attachment were statistically significantly lower than the control group (p < 0.001). CONCLUSIONS: It has been observed from the results of this research that the frequency of bulimia nervosa and BED in this sample is so similar to Western samples. Besides that, self-esteem, child abuse and neglect, and family functions must be examined in detail because they are risk factors for EDs and affect the course of treatment.     

The links between body dysmorphic disorder and eating disorders.

The aim of the study was to search for a body dysmorphic disorder (BDD) period preceding the symptoms meeting the criteria of either anorexia or bulimia nervosa, and an evaluation of the prevalence of BDD symptoms in a control group of girls without any eating disorder. Ninety-three girls (12-21 years old ) were included in the study (36 with anorexia nervosa, 17 with bulimia nervosa and 40 healthy controls). The Structured Clinical Interview (SCID), including the BDD module, and a novel questionnaire (for the presence of preceding life events) were used. We found the symptoms of BDD in 25% of anorexia nervosa sufferers for at least six months before observing a clear eating disorder picture. Moreover, other mental disorders were also present among these patients. The results may support the idea that BDD and anorexia nervosa both belong to either OCD or affective disorders spectra.     

The Spectrum of Self-Injurious Behavior in Eating Disorders

Eating disordered patients display a spectrum of self-harming behaviors that can only partially be defined as suicidal. Even some specific symptoms of eating disorders (EDs), like weight control practices, can be considered self-aggressive or a form of self-punishment. The present paper is a review of the findings of recent studies that explored the dimensionality of the self-injurious behaviors in eating disorders and the clinical correlates of the emerging dimensions. These studies have found that EDs have a specific relationship with self-injurious behaviors. These behaviors should be taken into account by the therapist in the assessment and treatment of both anorexia nervosa and bulimia nervosa patients.     

Different rates of first admissions for psychosis in migrant groups in Paris

Purpose

The association between migration and psychosis has been reported in the past decades in many European countries. Despite large-scale migration into France, epidemiological data on the incidence of psychosis in this population are lacking. In this study, we compare the incidence rates of first admission for psychosis among natives and first generation migrants.

Methods

Two-hundred and fifty-eight patients aged 15+ with first admission for psychosis were identified in the catchment area of the 20th district of Paris between 2005 and 2009. Standardised incidence rates and incidence rate ratios were calculated for migrant and native groups.

Results

We found higher rates of admissions for psychosis in the migrant group (IRR 2.9, 95 % CI 0.9–9.8) compared to individuals born in France. Among migrants, incidence was higher in individuals from Sub-Saharan Africa compared to natives (IRR 7.1, CI 95 % 2.3–21.8), whereas the incidence was similar for those from Europe (IRR 1.2, CI 95 % 0.3–5.1) and from North Africa (IRR 1.4, CI 95 % 0.4–5.6).

Conclusions

Our findings suggest that Sub-Saharan migrants were identified as the most vulnerable migrant group for developing psychosis in France, but additional work is warranted to confirm these trends.     

The spectrum of self-injurious behavior in eating disorders

Eating disordered patients display a spectrum of self-harming behaviors that can only partially be defined as suicidal. Even some specific symptoms of eating disorders (EDs), like weight control practices, can be considered self-aggressive or a form of self-punishment. The present paper is a review of the findings of recent studies that explored the dimensionality of the self-injurious behaviors in eating disorders and the clinical correlates of the emerging dimensions. These studies have found that EDs have a specific relationship with self-injurious behaviors. These behaviors should be taken into account by the therapist in the assessment and treatment of both anorexia nervosa and bulimia nervosa patients.     

Prenatal Stress and Risk of Febrile Seizures in Children: A Nationwide Longitudinal Study in Denmark

We aimed to examine whether exposure to prenatal stress following maternal bereavement is associated with an increased risk of febrile seizures. In a longitudinal population-based cohort study, we followed 1,431,175 children born in Denmark. A total of 34,777 children were born to women who lost a close relative during pregnancy or within 1 year before the pregnancy and they were included in the exposed group. The exposed children had a risk of febrile seizures similar to that of the unexposed children (hazard ratio (HR) 1.00, 95% CI 0.94–1.06). The HRs did not differ according to the nature or timing of bereavement. Our data do not suggest any causal link between exposure to prenatal stress and febrile seizures in childhood.