Validating the EDI-2 in three Swedish samples: Eating disorder patient, psychiatric outpatients and normal controls

National Resource Centre for Eating Disorders, and Anorexia Bulimia Unit, Child and Adolescent Psychiatry Centre, Queen Silvia Children's Hospital, Göthenburg, Sweden.
Nordic Journal of Psychiatry (Impact Factor: 1.34). 02/2006; 60(1):44-50. DOI: 10.1080/08039480500504537
Source: PubMed


The aim of the current study was to validate the Eating Disorders Inventory 2 (EDI-2) in a Swedish population by investigating how it discriminates between three female samples aged 18 to 50 years: patients with eating disorders (n = 978), psychiatric outpatients (n = 106) and normal controls (n = 602), as well as between different eating disorder diagnoses. The internal consistency of the EDI-2 was above 0.70 for most subscales. The EDI-2 discriminated well between patients with eating disorders and normal controls on all subscales. On the symptom-related subscales, eating disorder patients scored highest followed by psychiatric controls and normals. All subscales except Perfectionism, Interoceptive awareness and Asceticism discriminated eating disorder patients and psychiatric controls. Bulimia patients scored higher than anorexics on the symptom subscales. It is concluded that the EDI-2 discriminates well between eating disorder patients and both psychiatric and normal controls.

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Available from: David Clinton, Nov 05, 2014
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    • "The ROC-analyses support the success of this purpose in the sense that the subscale interoceptive deficits is the best predictor across all diagnostic groups, followed by low self-esteem and personal alienation. Previous studies have also found interoceptive awareness along with the three eating disorder specific subscales to discriminate between eating disorder patients and psychiatric controls (Nevonen et al. 2006; Schoemaker et al. 1997). Also, interoceptive issues are related to other psychological constructs of eating disorders like depression, perfectionism, and self directiveness (Fassino et al. 2004). "
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    ABSTRACT: The Eating Disorder Inventory (EDI) is used worldwide in research and clinical work. The 3(rd) version (EDI-3) has been used in recent research, yet without any independent testing of its psychometric properties. The aim of the present study was twofold: 1) to establish national norms and to compare them with the US and international norms, and 2) to examine the factor structure, the internal consistency, the sensitivity and the specificity of subscale scores. Participants were Danish adult female patients (N = 561) from a specialist treatment centre and a control group (N = 878) was women selected from the Danish Civil Registration system. Small but significant differences were found between Danish and international, as well as US norms. Overall, the factor structure was confirmed, the internal consistency of the subscales was satisfactory, the discriminative validity was good, and sensitivity and specificity were excellent. The implications from these results are discussed.
    Journal of Psychopathology and Behavioral Assessment 03/2011; 33(1):101-110. DOI:10.1007/s10862-010-9207-4 · 1.55 Impact Factor
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    • "One problem is that the multi-perfectionism scale is not yet translated and validated in Swedish. Since EDI-2 is frequently used and seen as a good measure (Nevonen et al., 2006), it is possible to consider the empirical and theoretical implications of having EDI-SOP and EDI-SPP in the EDI-P although as few as three items of each type of perfectionism imposes some limitations. In spite of the few items, the reliability of SOP was high. "
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    ABSTRACT: This longitudinal study analyses self-reported perfectionism, eating disorders and psychiatric symptoms during recovery from anorexia nervosa (AN). With a recovered design, a group of 68 previous patients with AN was studied in two follow-up studies, 8 and 16 years after 1st admission to Child and Adolescent Psychiatry (CAP). Levels of perfectionism stayed the same while eating disorder symptoms and psychiatric symptoms decreased during recovery. Levels of perfectionism were inversely related to duration of remission so that individuals that had short illness duration had lower levels of perfectionism at both follow-ups. Patients with initial high levels of perfectionism may be at risk for a long illness duration which we recommend clinicians to acknowledge.
    European Eating Disorders Review 09/2008; 16(5):386-94. DOI:10.1002/erv.850 · 2.46 Impact Factor
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    ABSTRACT: There are more clinical opinions than empirical knowledge regarding physical activity of patients seeking treatment for longstanding eating disorders. The aim of this dissertation was therefore to examine different aspects of physical activity among inpatients with longstanding eating disorders a) compared to non-clinical controls, and b) prospective during an inpatient treatment period. Methods: The papers were based on a two-phased study, where papers I-III reported results from phase I and paper IV consisted of data from phase I and II of the study. Phase I was a cross sectional designed study including 59 female inpatients with longstanding eating disorders and 53 non-clinical age and gender matched controls. The patients met DSM-IV criteria for anorexia nervosa, bulimia nervosa or eating disorders not otherwise specified. The data from phase I constituted the baseline data for study phase II. In phase II, 38 patients classified as excessive and non-excessive exercisers participated. Assessment methods included objectively and self-reported amounts of physical activity, exercise dependence, reasons for exercise, physical fitness, body composition, bone mineral density, and eating disorder psychopathology. Main results: The patients underreported weekly amounts of moderate-to- vigorous physical activity by 14% (mean 55 min w-1). Regulation of negative affects was perceived as a more important reason for exercise, and fitness/health a less important reason, in patients compared to controls. Exercise dependence score was on average higher in patients compared to controls, but the explanatory factors for exercise dependence score were similar between the two groups. Despite a higher amount of weekly moderate- to-vigorous physical activity in patients across all diagnoses compared to the controls, there were no differences in aerobic fitness between patients and controls. Muscular strength and bone mineral density was lower in patients with AN compared to patients with BN, EDNOS and controls. Weekly amount of physical activity with high mechanical impact, but not weight bearing physical activity in general, was associated with bone mineral density in the patients. Main explanatory factors for bone mineral density in the patients were a history of AN and muscular strength. Excessive exercising patients had more severe eating disorder psychopathology compared to the non- excessive exercisers, but the relative changes in eating disorder psychopathology from admission to discharge was similar for the excessive and non-excessive exercisers. Reduction in eating disorder psychopathology was associated with reduction in exercise dependence score and reduced importance of exercise for regulation of negative affects in the excessive exercisers, but not in the non-excessive exercisers. Discussion and conclusions: The underreporting of moderate-to-vigorous physical activity indicates a need for objective assessment of the amount of physical activity. The importance of exercise as an affect regulator, and not only a weight regulator, calls for a wider approach and understanding of the mechanism and function of physical activity in the patients with longstanding eating disorders in general, and in excessive exercising patients in particular.
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