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Nutrients 2017, 9(9), 967; doi:10.3390/nu9090967

The Starvation Symptom Inventory: Development and Psychometric Properties

1
Department of Eating and Weight Disorders, Villa Garda Hospital, Via Montebaldo, 89, 37016 Garda (Verona), Italy
2
Department of Clinical and Experimental Medicine, University of Pisa, Via Roma, 67, 56100 Pisa, Italy
3
Department of Neurosciences, Biomedicine and Movement Sciences, University of Verona, 37129 Verona, Italy
*
Author to whom correspondence should be addressed.
Received: 3 August 2017 / Revised: 23 August 2017 / Accepted: 30 August 2017 / Published: 1 September 2017
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Abstract

Background: Starvation symptoms are common in patients with anorexia nervosa, and according to the transdiagnostic cognitive behavioural theory for eating disorders, they contribute to maintaining the eating disorder psychopathology. The aim of this study was therefore to describe the design and validation of the Starvation Symptoms Inventory (SSI); a self-report questionnaire that examines the symptoms of starvation in underweight patients with eating disorders. Methods: 150 female patients with anorexia nervosa were recruited, as well as 341 healthy control subjects, 30 not-underweight patients with an eating disorder, and 15 patients with bipolar depressive episodes. The 150 patients completed the Eating Disorder Examination Questionnaire and the Brief Symptom Inventory. All participants rated their starvation symptoms on a continuous Likert-type scale (0–6), and reported the number of days in which they had experienced them in the previous 28 days. Results: Principal component analysis identified a single-factor, 15-item scale, which demonstrated good internal consistency (α = 0.91) and test–retest reliability (r = 0.90). The SSI global score was significantly correlated with eating disorder and general psychopathology, demonstrating good convergent validity. SSI scores were significantly higher in the anorexia nervosa sample than in the healthy control, not-underweight eating disorder and bipolar depressive episode samples. Conclusions: These findings suggest that the SSI is a valid self-report questionnaire that may provide important clinical information regarding symptoms of starvation in patients with anorexia nervosa. View Full-Text
Keywords: anorexia nervosa; starvation symptoms; dietary restraint; validity; reliability; factor analysis anorexia nervosa; starvation symptoms; dietary restraint; validity; reliability; factor analysis
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MDPI and ACS Style

Calugi, S.; Miniati, M.; Milanese, C.; Sartirana, M.; El Ghoch, M.; Dalle Grave, R. The Starvation Symptom Inventory: Development and Psychometric Properties. Nutrients 2017, 9, 967.

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