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The Symptom-Checklist-K-9 (SCL-K-9) Discriminates between Overweight/Obese Patients with and without Significant Binge Eating Pathology: Psychometric Properties of an Italian Version

Authors
  • Imperatori, Claudio1
  • Bianciardi, Emanuela2
  • Niolu, Cinzia2
  • Fabbricatore, Mariantonietta1
  • Gentileschi, Paolo
  • Di Lorenzo, Giorgio2, 3
  • Siracusano, Alberto2
  • Innamorati, Marco1
  • 1 (M.I.)
  • 2 (A.S.)
  • 3 IRCCS Fondazione Santa Lucia, Via Ardeatina 306, 00179 Roma, Italy
Type
Published Article
Journal
Nutrients
Publisher
MDPI AG
Publication Date
Mar 01, 2020
Volume
12
Issue
3
Identifiers
DOI: 10.3390/nu12030674
PMID: 32121618
PMCID: PMC7146623
Source
PubMed Central
Keywords
License
Green

Abstract

A general personality and psychopathology evaluation is considered to be crucial part of the multidisciplinary assessment for weight-related problems. The Symptom Checklist-90-Revised (SCL-90-R) is commonly used to assess general psychopathology in both overweight and obese patients seeking weight-loss treatment. The main purpose of the present research was to investigate the psychometric properties of the brief form of the SCL-90-R (i.e., the SCL-K-9) in a clinical sample ( N = 397) of patients seeking weight-loss treatment (i.e., bariatric surgery and a nutritional weight-loss program). The results of the confirmatory factor analysis supported a one-factor solution of the SCL-K-9, with all nine items loading significantly on the common latent factor (lambdas ≥ 0.587). The ordinal α (= 0.91), the inter-item mean indices of correlation ( r ii = 0.53), and the convergent validity were also satisfactory. A receiver operating characteristic curves procedure showed that both SCL-90-R and SCL-K-9 were able to classify patients with and without significant binge eating pathology according to the Binge Eating Scale (BES) total score. Overall, our results suggest that the SCL-K-9 has adequate psychometric properties and can be applied as a short screening tool to assess general psychopathology in overweight/obese individuals seeking weight-loss treatment and at follow-up interviews when time restraints preclude the use of the full-length form.

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