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Eur J Public Health. 2013 Nov 26. [Epub ahead of print]

Association between higher BMI and depressive symptoms in Icelandic adolescents: the mediational function of body image.

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  • 11 Department of Health and Behavior Studies, Teachers College, Columbia University, New York, NY, USA.


Background: Weight status and depressive affect in adolescents are positively related constructs, but the nature of this relationship is not well understood, especially in European populations. The objective of this study was to examine the interplay between body mass index (BMI) and depressive symptoms, while accounting for the possible mediational role of body image, in a sample of older adolescents in Iceland. Method: We utilized data from a population-based cross-sectional sample of 11 388 junior college students (16-20-year-olds) to conduct structural equation modelling to test the relationship between BMI, body image and depressive symptoms while controlling for socioeconomic status and other background variables. Results: Higher levels of BMI are associated with higher depressive symptoms. However, this association was mediated entirely through perceptions of body image. The association is gender dependent, with the relationship between BMI levels and depressive symptoms being significantly stronger among junior college girls than boys. Conclusion: Body image is a key contributor in the relationship between weight status and depressive symptoms among adolescents. Future interventions with adolescents should take this association into account and focus on such factors as physical confidence and self-esteem.

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