The Relationship between Body Mass Index and Body Size Dissatisfaction in Young Adolescents: Spline Function Analysis

Samuele Cortese, Bruno Falissard, Yolande Pigaiani, Claudia Banzato, Giovanna Bogoni, Maristella Pellegrino, Brenda Vincenzi, Marco Angriman, Solange Cook, Diane Purper-Ouakil, Bernardo Dalla Bernardina, Claudio Maffeis

Research output: Contribution to journalArticle

Abstract

This study assessed how body size dissatisfaction (BSD) varies in relationship to specific body mass index (BMI) values in a sample of preadolescents. A novel statistical approach based on spline function, suitable to assess in detail how two variables are related, was used. The study was conducted between December 2004 and March 2005. Students (aged 11 to 14 years) from seven selected secondary schools in Verona, Italy, were invited to participate. The final study group included 678 subjects. BSD was assessed using the Body Image Assessment Procedure. BMI values were expressed as z scores. It was found that, in the total sample, slightly underweight subjects (BMI z scores=-0.5) had no BSD. BSD progressively increased (current body size > ideal body size) for BMI z scores >-0.5 and became negative (ideal body size > current body size) for BMI z scores 0 and became negative for BMI z scores -1 and became negative for BMI z scores

Original languageEnglish
Pages (from-to)1098-1102
Number of pages5
JournalJournal of the American Dietetic Association
Volume110
Issue number7
DOIs
Publication statusPublished - Jul 2010

ASJC Scopus subject areas

  • Food Science
  • Nutrition and Dietetics

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    Cortese, S., Falissard, B., Pigaiani, Y., Banzato, C., Bogoni, G., Pellegrino, M., Vincenzi, B., Angriman, M., Cook, S., Purper-Ouakil, D., Dalla Bernardina, B., & Maffeis, C. (2010). The Relationship between Body Mass Index and Body Size Dissatisfaction in Young Adolescents: Spline Function Analysis. Journal of the American Dietetic Association, 110(7), 1098-1102. https://doi.org/10.1016/j.jada.2010.04.001