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Oral presentation | Open | Published:

A longitudinal examination of the interpersonal model of binge eating in australian adolescents

Objective

To use a large Australian adolescent sample to test the original interpersonal model of binge eating longitudinally and a new version of the model in which bulimic behaviour leads to depression, which in turn leads to interpersonal problems.

Method

Participants in the current study were part of the Australian Temperament Project. Participants were 1453 (702 females) adolescents and were assessed across five time points: 11-12 years (T1), 13-14 (T2), 15-16 (T3), 17-18 (T4), 19-20 (T5). Interpersonal problems were drawn from parent and self-reported questionnaires at T1 and T5. Data on depression was taken from self-reports at T2 and T4 and data on bulimic behaviour was taken from self-report at T3.

Results

Structural equation modelling was used to examine both models. The original interpersonal model had acceptable fit, χ2 (df=4, N=1453)= 8.275, p= .082, CFI= .99, RMSEA= .03, SRMR= .01. The new version of the model also had acceptable fit, χ2 (df=1, N=1453)= 10.170, p < .001, CFI= .99, RMSEA=.08, SRMR= 0.02. Depression mediated the relationship between interpersonal problems and bulimic behaviour in both models.

Conclusions

The results provide longitudinal support for the interpersonal model of binge eating and initial evidence for a new version of the model, offering important insights into the role of interpersonal problems in the development and maintenance of bulimic pathology.

Author information

Correspondence to Isabel Krug.

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Keywords

  • Public Health
  • Equation Modelling
  • Health Promotion
  • Disease Prevention
  • Structural Equation