Study selection and analysis: Randomised controlled trials, using validated outcome measures, comparing mainly face-toface psychosocial treatments for bulimia with either a control condition or an alternative treatment were included. Exclusions: naturalistic studies, studies in uncommon subtypes of bulimia, not published in English, or fewer than 10 participants. Data were extracted on number o...

Background The developmental study of subtypes of disordered eating (DE) during adolescence may be relevant to understand the development of eating disorders. The purpose of the present study was to identify subgroups with different profiles of DE in a community sample of adolescent girls aged 13-15 years, and to study the stability of these profiles and subgroups over a one-year interval in or...

population size — seemed to fit well the predictions for purging to occur. But did purging actually take place? In the next step, the authors measured the extent of inbreeding depression in native and invasive species. Beetles from three native and three invasive populations were mated either with their siblings (inbreeding) or with unrelated individuals (outbreeding), and fitness-related trait...

OBJECTIVE This study examined the relationship of psychosocial factors and health behaviors to frequent dieting and purging behaviors in Native American adolescent boys and girls. DESIGN School-based health survey. SETTING AND PARTICIPANTS A total sample of 13 454 Native American youth in grades 7 through 12 living on or near reservations from eight Indian Health Service areas completed a s...

The inbreeding depression of fitness traits can be a major threat for the survival of populations experiencing inbreeding. However, its accurate prediction requires taking into account the genetic purging induced by inbreeding, which can be achieved using a "purged inbreeding coefficient." We have developed a method to compute purged inbreeding at the individual level in pedigreed populations w...

Inbreeding depression can be reduced, or purged, by selection against deleterious alleles. This prediction is the basis of the recommendation that captive wildlife populations suffering from inbreeding depression be intentionally bred from healthy inbred animals. Yet data on the effectiveness of purging inbreeding depression are few. In this study I present and use two different regression mode...

BACKGROUND Subclinical forms of eating disorders (ED) are highly prevalent, but relatively little is known about age trends, gender differences and distinctions among symptoms. This study investigates age trends and gender difference in binge eating, purging and non-purging compensatory behaviours (CB) and the relationship of such behaviours to psychosocial problems. METHODS Data from the nat...

BACKGROUND With the imminent publication of the new edition of the Diagnostic and Statistical Manual of Mental Disorders (DSM-5), there has been a growing interest in the study of the boundaries across the three bulimic spectrum syndromes [bulimia nervosa-purging type (BN-P), bulimia nervosa-non purging type (BN-NP) and binge eating disorder (BED)]. Therefore, the aims of this study were to det...

BACKGROUND A recent study examined the prevalence, clinical correlates, age trends, and stability of unhealthy weight control behaviors (UWCB; purging and diet pill use) in a nationally representative sample of Norwegian boys and girls. The purpose of this study was to provide similar, comparative analyses for a nationally representative sample of American youth. METHODS Data were extracted f...