Body concerns and BMI as predictors of disordered eating and body mass in girls: An 18-year longitudinal investigation

Michael R. Lowe, Naomi Marmorstein, William Iacono, Diane Rosenbaum, Hallie Espel-Huynh, Alexandra F. Muratore, Elin L. Lantz, Fengquig Zhang

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

Body concerns (e.g., body dissatisfaction and weight preoccupation) are well-supported prospective risk factors for the development of eating disorders in women. Body concerns are psychological variables but they are partly based on actual body mass. This study tested whether (a) body concerns predict increases in eating disorder characteristics measured both continuously (via subscale scores on the Minnesota Eating Behavior Survey (MEBS) and categorically (via transition to a probable or definite eating disorder), (b) body concerns predict changes in BMI, and (c) BMI predicts changes in eating disorder symptoms or development of an eating disorder. Beginning with 762 girls at age 11, the MEBS' Body Dissatisfaction (BD) and Weight Preoccupation (WP) scales were used to predict change in the MEBS' Bulimic Behavior scale (the sum of the Binge Eating and Compensatory Behaviors scales), in BD and WP themselves and in BMI over 18 years of follow up. Baseline BMI was also used to predict BMI and MEBS change. Contrary to expectations, BD and WP predicted significantly reduced growth in all MEBS scales and also predicted significantly reduced growth in BMI. BD, WP and BMI did not predict development of an ED. This pattern was strengthened when predictors were measured at age 17 instead of 11. We consider the possibility that the divergence between the current findings and past findings on eating disorder risk factors may stem from the unusually long developmental period studied, ranging from age 11 (or 17) through age 29. Additional longitudinal research that spans a similar developmental period could shed light on the plausibility of this explanation.

Original languageEnglish (US)
Pages (from-to)32-43
Number of pages12
JournalJournal of abnormal psychology
Volume128
Issue number1
DOIs
StatePublished - Jan 2019

Bibliographical note

Funding Information:
The development of the MEBS data was supported by NIH grants DA005147, DA013240 and AA009367 as well as by DK098638 (PI: Naomi Marmorstein).

Publisher Copyright:
© 2018 American Psychological Association.

Copyright:
Copyright 2019 Elsevier B.V., All rights reserved.

Keywords

  • BMI
  • body dissatisfaction
  • eating disorders
  • weight
  • weight preoccupation

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