Dataset Information

Genetic and environmental associations between body dissatisfaction, weight preoccupation, and binge eating: Evidence for a common factor with differential loadings across symptom type.

ABSTRACT:

Objective

Prior twin studies provide support for a single "common factor" that contributes genetic and environmental risk to a range of disordered eating symptoms. However, the common factor may be indexed less well by binge eating (BE) than other symptoms of eating disorders [i.e., body dissatisfaction (BD) and weight preoccupation (WP)]. We sought to explore the presence of a common factor and test whether loadings differed across three key symptoms (i.e., BE, BD, WP).

Method

Disordered eating was assessed via self-report in 631 female twin pairs from the Michigan State University Twin Registry.

Results

We detected a common disordered eating factor that was influenced primarily by additive genetic and nonshared environmental influences. However, we observed different loadings on this common factor by symptom type, as factor loadings for BD and WP were stronger than that for BE. Moreover, the residual environmental and/or genetic variances (i.e., those that are independent of the common factor) were larger in BE than those of BD or WP.

Discussion

Although all three symptoms share a common set of genetic and environmental influences, risk for BE may involve additional genetic, biological, and environmental factors that are not shared with other symptoms of eating pathology. © 2016 Wiley Periodicals, Inc.(Int J Eat Disord 2017; 50:157-161).

SUBMITTER: O'Connor SM

PROVIDER: S-EPMC5291810 | biostudies-literature | 2017 Feb

REPOSITORIES: biostudies-literature

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Publications

Genetic and environmental associations between body dissatisfaction, weight preoccupation, and binge eating: Evidence for a common factor with differential loadings across symptom type.

O'Connor Shannon M SM Beam Christopher R CR Luo Xiaochen X Cohen L Adelyn LA VanHuysse Jessica L JL Emery Robert E RE Turkheimer Eric E Keel Pamela K PK Burt S Alexandra SA Neale Michael M Boker Steven S Klump Kelly K

The International journal of eating disorders 20160916 2

<h4>Objective</h4>Prior twin studies provide support for a single "common factor" that contributes genetic and environmental risk to a range of disordered eating symptoms. However, the common factor may be indexed less well by binge eating (BE) than other symptoms of eating disorders [i.e., body dissatisfaction (BD) and weight preoccupation (WP)]. We sought to explore the presence of a common factor and test whether loadings differed across three key symptoms (i.e., BE, BD, WP).<h4>Method</h4>Di ...[more]

PMID: 27636116

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Project description:BackgroundDepression and binge eating disorder (BED) are prevalent among bariatric surgery candidates. Depression subtypes may be differentially related to obesity, such that the atypical subtype predicts poorer outcomes. However, no research has examined depression subtypes, BED, and weight loss in bariatric candidates.ObjectiveTo examine whether presurgical atypical depressive symptoms, compared with no depressive and melancholic depressive symptoms, were associated with higher rates of presurgical BED, binge eating severity, and poorer postsurgical weight loss trajectories among bariatric candidates.SettingAn outpatient Midwest bariatric clinic.MethodsParticipants were 345 adults (aged 46.27 ± 12.78 yr, 76% female; body mass index = 49.84 ± 8.51 kg/m2) who received a presurgical evaluation. Depression subtypes (melancholic, atypical, and no depressive symptoms) were categorized using the Beck Depression Inventory-II. BED diagnosis and severity were evaluated using the Eating Disorder Diagnostic Scale and Binge Eating Scale, respectively. Weight loss trajectories were calculated as percent total weight loss postsurgery.ResultsUsing no depression as the referent, participants reporting melancholic symptoms (odds ratio = 7.60, P < .001 confidence interval95 [2.59-22.28]) and atypical symptoms (odds ratio = 10.11, P < .01 confidence interval95 [2.69-37.94]) were more likely to meet criteria for BED. Patients with atypical depressive symptoms exhibited the highest binge eating severity scores (mean = 23.03). Depression subtypes did not predict percent total weight loss trajectories within 18-months postbariatric surgery.ConclusionsPatients reporting preoperative atypical depressive symptoms were more likely to meet criteria for co-morbid BED diagnosis and have greater binge eating severity but did not have poorer weight loss within 18 months postsurgery. Future studies with longer-term follow-up and corresponding measures of postsurgical depression and binge eating pathology are warranted.

Project description:ObjectiveThe relationship of dietary restraint in increasing risk for binge eating among individuals with binge-spectrum eating disorders (B-EDs) is well established. However, previous research has not yet identified whether these individuals exhibit heterogeneous profiles of dietary restraint and whether these profiles are associated with differences in eating pathology.MethodsIndividuals with B-EDs (N = 290) completed the Eating Disorder Examination. Latent profile analysis was conducted on dietary restraint frequency data, including restriction of overall amount of food consumed, avoidance of eating, desire for an empty stomach, food avoidance, and dietary rules. Identified latent profiles were compared on binge eating frequency, compensatory behaviors frequency, and ED pathology using the three-step procedure.ResultsA four-class model of dietary restraint best fit the data. Classes significantly differed in frequency of compensatory behaviors (F[3, 286] = 31.01, p < .001), EDE Eating Concern (F[3, 286] = 14.36, p < .001), EDE Shape Concern (F[3, 286] = 7.06, p < .001), EDE Weight Concern (F[3, 286] = 6.83, p < .001), and ED Pathology (F[3, 286] = 12.86, p < .001), but did not differ in frequency of objective (F[3, 286] = 2.45, p = .06) or subjective binge episodes (F[3, 286] = 1.87, p = .14).DiscussionIndividuals with B-EDs exhibit distinct profiles of dietary restraint, which are associated with frequency of compensatory behaviors and severity of ED pathology.Public significance statementIndividuals with binge-spectrum eating disorders have different patterns of restrictive eating symptoms. These profiles of restrictive eating behaviors are associated with differences in severity of compensatory behaviors and cognitive eating disorder symptoms, like shape and weight dissatisfaction. Understanding the relationships between profiles of restrictive eating behaviors and other eating disorder symptoms may allow for personalization of treatment and improvements in treatment efficacy.

Dataset Information

Genetic and environmental associations between body dissatisfaction, weight preoccupation, and binge eating: Evidence for a common factor with differential loadings across symptom type.

Objective

Method

Results

Discussion

Publications

Genetic and environmental associations between body dissatisfaction, weight preoccupation, and binge eating: Evidence for a common factor with differential loadings across symptom type.

Similar Datasets

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