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Premorbid BMI predicts binge-purge symptomatology among individuals with anorexia nervosa

Lantz, Elin L. ; Gillberg, Christopher ; Råstam, Maria LU orcid ; Wentz, Elisabet LU and Lowe, Michael R. (2017) In International Journal of Eating Disorders 50(7). p.852-855
Abstract

Objective: A finding consistent with the transdiagnostic approach to eating disorders is that about half of those with restricting anorexia nervosa (AN) eventually undergo a transition to the binge/purge (BP) subtype or to bulimia nervosa. Given evidence that individuals with bulimic symptoms exhibit elevated weights premorbidly, we tested the hypothesis that among those with AN, highest premorbid BMI would predict which individuals with AN would develop AN-BP. Method: The current study used longitudinal data from a community sample of adolescents with AN in Sweden. Premorbid weights were obtained from growth charts, and participants were re-assessed at 6, 10, and 18 years after first presentation with AN. Results: A greater highest... (More)

Objective: A finding consistent with the transdiagnostic approach to eating disorders is that about half of those with restricting anorexia nervosa (AN) eventually undergo a transition to the binge/purge (BP) subtype or to bulimia nervosa. Given evidence that individuals with bulimic symptoms exhibit elevated weights premorbidly, we tested the hypothesis that among those with AN, highest premorbid BMI would predict which individuals with AN would develop AN-BP. Method: The current study used longitudinal data from a community sample of adolescents with AN in Sweden. Premorbid weights were obtained from growth charts, and participants were re-assessed at 6, 10, and 18 years after first presentation with AN. Results: A greater highest premorbid BMI z score predicted a greater likelihood of developing binge/purge symptoms over 18 years. Discussion: Among individuals who develop an eating disorder, premorbid BMI may be implicated in the type and course of the eating disorder that emerges.

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author
; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
anorexia nervosa, binge eating, body mass index, premorbid risk, purging
in
International Journal of Eating Disorders
volume
50
issue
7
pages
4 pages
publisher
John Wiley & Sons Inc.
external identifiers
  • pmid:28432804
  • wos:000405311300017
  • scopus:85018645699
ISSN
0276-3478
DOI
10.1002/eat.22718
language
English
LU publication?
yes
id
2e53c56b-1cff-4083-93bd-834621a3eb1d
date added to LUP
2017-07-25 14:53:48
date last changed
2025-01-07 17:44:25
@article{2e53c56b-1cff-4083-93bd-834621a3eb1d,
  abstract     = {{<p>Objective: A finding consistent with the transdiagnostic approach to eating disorders is that about half of those with restricting anorexia nervosa (AN) eventually undergo a transition to the binge/purge (BP) subtype or to bulimia nervosa. Given evidence that individuals with bulimic symptoms exhibit elevated weights premorbidly, we tested the hypothesis that among those with AN, highest premorbid BMI would predict which individuals with AN would develop AN-BP. Method: The current study used longitudinal data from a community sample of adolescents with AN in Sweden. Premorbid weights were obtained from growth charts, and participants were re-assessed at 6, 10, and 18 years after first presentation with AN. Results: A greater highest premorbid BMI z score predicted a greater likelihood of developing binge/purge symptoms over 18 years. Discussion: Among individuals who develop an eating disorder, premorbid BMI may be implicated in the type and course of the eating disorder that emerges.</p>}},
  author       = {{Lantz, Elin L. and Gillberg, Christopher and Råstam, Maria and Wentz, Elisabet and Lowe, Michael R.}},
  issn         = {{0276-3478}},
  keywords     = {{anorexia nervosa; binge eating; body mass index; premorbid risk; purging}},
  language     = {{eng}},
  month        = {{07}},
  number       = {{7}},
  pages        = {{852--855}},
  publisher    = {{John Wiley & Sons Inc.}},
  series       = {{International Journal of Eating Disorders}},
  title        = {{Premorbid BMI predicts binge-purge symptomatology among individuals with anorexia nervosa}},
  url          = {{http://dx.doi.org/10.1002/eat.22718}},
  doi          = {{10.1002/eat.22718}},
  volume       = {{50}},
  year         = {{2017}},
}