Dataset Information

How frequent are eating disturbances in the population? Norms of the eating disorder examination-questionnaire.

ABSTRACT:

Objective

The Eating Disorder Examination-Questionnaire (EDE-Q) is a self-report instrument assessing the specific psychopathology and key behaviors of eating disorders. This study sought to determine the prevalence of eating disturbances, and to provide psychometric properties and norms of the EDE-Q, in a representative German population sample.

Methods

A total of 2520 individuals (1166 men, 1354 women) were assessed with the EDE-Q.

Results

Eating disorder psychopathology was higher and most key behaviors were more prevalent in women than in men. Psychopathology declined with age ?65 in both sexes, and showed a peak at age 55-64 in men. Overall, 5.9% of the women and 1.5% of the men revealed eating disturbances. The prevalence of eating disturbances decreased with age in women and was significantly higher in obese than in normal-weight individuals. Psychometric analyses showed favorable item characteristics. Internal consistencies of EDE-Q composite scores were ?.80 for women and ?.70 for men. The factor structure of the EDE-Q was partially reproduced. Sex- and age-specific population norms are reported.

Discussion

This study provides population norms of the EDE-Q for both sexes and across the age range, demonstrates demographic variations in symptomatology, and reveals satisfactory psychometric properties. Further research is warranted on eating disturbances in older adults.

SUBMITTER: Hilbert A

PROVIDER: S-EPMC3261137 | biostudies-literature | 2012

REPOSITORIES: biostudies-literature

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Publications

How frequent are eating disturbances in the population? Norms of the eating disorder examination-questionnaire.

Hilbert Anja A de Zwaan Martina M Braehler Elmar E

PloS one 20120118 1

<h4>Objective</h4>The Eating Disorder Examination-Questionnaire (EDE-Q) is a self-report instrument assessing the specific psychopathology and key behaviors of eating disorders. This study sought to determine the prevalence of eating disturbances, and to provide psychometric properties and norms of the EDE-Q, in a representative German population sample.<h4>Methods</h4>A total of 2520 individuals (1166 men, 1354 women) were assessed with the EDE-Q.<h4>Results</h4>Eating disorder psychopathology ...[more]

PMID: 22279527

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Project description:BACKGROUND AND OBJECTIVES:The Eating Disorder Examination Questionnaire 6.0 (EDE-Q 6.0) is one of the most broadly used self-report tools that assesses attitudes and behaviors associated with eating disorders (EDs). The aim of the present study was to examine the reliability, validity, and factor structure of the Lithuanian version of the EDE-Q 6.0 (LT-EDE-Q 6.0) in a nonclinical student sample. MATERIALS AND METHODS:A sample of 382 students (mean age 24.0 ± 6.4) participated in the study. The students completed a self-report questionnaire measuring the risk of EDs (LT-EDE-Q 6.0), body image (LT-MBSRQ-AS), quality of life (LT-WHOQOL-BREF), and self-esteem (RSES). Cronbach's alpha assessed the internal consistency of the EDE-Q 6.0. Pearson's correlations were used for the analyses of the construct and concurrent validity with the subscales of LT-MBSRQ-AS, LT-WHOQOL-BREF, and RSES. Intraclass correlation coefficients (ICC) were calculated for assessing test-retest reliability. RESULTS:The mean score of the LT-EDE-Q 6.0 in the mixed sample was 1.5 ± 1.02. For women and men, the general mean scores were higher than in the majority of the samples of Western Europe but lower than in the United States. Acceptable internal consistency for the four subscales (0.75-0.88) and the LT-EDE-Q 6.0 general score (0.94) was obtained. Test-retest reliability was good to excellent for all subscales (0.66-0.91) and for the items that assessed essential behavioral features of EDs (0.84-0.90, except item 14 ICC = 0.4). The LT-EDE-Q 6.0 scores had adequate concurrent validity. However, the original 4-factor structure or other proposed models of EDE-Q were not obtained by CFA. CONCLUSIONS:The results of the current study support the applicability, validity, and reliability of the LT-EDE-Q 6.0 in a nonclinical Lithuanian student sample. However, we recommend assessing the general scale score without the application of the subscales. The Lithuanian version of this instrument should be further investigated with clinical samples to identify clinically diagnosed cases.

Project description:Findings from studies investigating cognitive flexibility in eating disorders (EDs) are inconsistent, and although neuropsychological tests are commonly used to measure these skills, they may not be particularly effective in predicting everyday functioning. Also, extant studies have largely focused on flexibility in anorexia nervosa (AN), with assessments targeting general rather than specific flexibility, and cognitive, rather than behavioral flexibility. Knowledge regarding ED specific flexibility and flexibility in bulimia nervosa (BN) and binge eating disorder (BED) is still scarce. The aim of this study was to develop and validate a novel measure assessing general and ED specific flexibility in a diagnostically diverse sample, and in healthy controls (HCs). A sample of 207 adult individuals with EDs (55% AN, 29% BN, 16% BED) and 288 HCs responded to an online, 51-item, pilot questionnaire on ED specific and general flexibility. In addition, participants completed the shift subscale from the Behavior Rating Inventory of Executive Function Adult version (BRIEF-A), and the Eating Disorder Diagnostic Scale (EDDS). A principal component analysis (PCA) in the clinical sample yielded a 36-item, three-factor solution capturing general flexibility, flexibility related to food and exercise, and flexibility concerning body shape and weight. Results showed that the measure had good to excellent internal consistency, and good convergent validity. A confirmatory factor analysis (CFA) using data from HCs revealed good fit indexes, supporting the original factor solution. A receiver operating characteristics analysis (ROC) demonstrated excellent accuracy in distinguishing scores from those with and without EDs. A cutoff score of 136 yielded the most balanced sensitivity and specificity. Significant differences in general and ED specific flexibility were found between individuals with and without EDs. Overall, HCs achieved the highest flexibility scores, followed by those with BED, BN, and AN. In sum this novel measure, the Eating Disorder Flexibility Index (EDFLIX) questionnaire, was found to be reliable and valid in the assessment of cognitive and behavioral flexibility, with results offering support for the conceptual distinction between general and ED related flexibility. The study also provides strong evidence for the discriminant validity of the EDFLIX with results revealing significant differences in flexibility in people with and without EDs. In addition, significant differences in flexibility also emerged when comparing diagnostic groups, indicating the utility of the assessment instrument for classification purposes.

Project description:Binge eating is a core diagnostic feature of bulimia nervosa, binge eating disorder, anorexia nervosa binge/purge type, and is a common feature of "other specified" and "unspecified" feeding and eating disorders. It has been suggested that specific metacognitive beliefs about food, eating, and binge eating may play a key role in the maintenance of binge eating behaviour. The Eating Beliefs Questionnaire (EBQ-18) provides a brief self-report assessment tool measuring three types of metacognitive beliefs: negative, positive, and permissive beliefs about food and eating. This study aimed to build on past research by validating the factor structure and psychometric properties of the EBQ-18 using both a clinical and non-clinical sample. A sample of 688 participants (n = 498 non-clinical participants, n = 161 participants seeking treatment for an eating disorder, and n = 29 participants seeking treatment for obesity) completed a battery of questionnaires, including the EBQ-18 and other measures of eating disorder symptoms and relevant constructs. A subset of 100 non-clinical participants completed the test battery again after an interval of two-weeks, and 38 clinical participants completed the EBQ-18 before and after receiving psychological treatment for their eating disorder. A confirmatory factor analysis (CFA) was conducted and psychometric properties of this measure were assessed. The results of this study provide support for the three-factor model of the EBQ-18. In addition, the EBQ-18 was found to be a valid and reliable measure, with excellent internal consistency, good test-retest reliability in the non-clinical sample, and also demonstrated evidence of sensitivity to treatment in clinical samples with binge eating pathology. Receiver operating characteristic (ROC) curve analyses were used to identify optimal cut-off scores for the EBQ-18. This study provides valuable information about the utility of the EBQ-18 as a measure for use in both clinical and research settings.

Dataset Information

How frequent are eating disturbances in the population? Norms of the eating disorder examination-questionnaire.

Objective

Methods

Results

Discussion

Publications

How frequent are eating disturbances in the population? Norms of the eating disorder examination-questionnaire.

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