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Weight self-perception in adolescents: evidence from a population-based study.

Mariana Contiero San Martini1, Daniela de Assumpção1, Marilisa Berti de Azevedo Barros2

  • 1State University of Campinas, School of Medical Sciences, Department of Pediatrics, Campinas-13083-887, Campinas, SP, Brazil.

Public Health Nutrition
|March 2, 2021
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Summary

Many adolescents with overweight or obesity misperceive their weight. Factors like gender, diet quality, and eating habits influence adolescent weight perception, informing health promotion strategies.

Keywords:
AdolescentBody weightSelf-perceptionWeight misperception

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Area of Science:

  • Public Health
  • Adolescent Health
  • Nutrition Science

Background:

  • Weight misperception is a significant public health issue among adolescents.
  • Understanding factors associated with weight misperception is crucial for effective interventions.

Purpose of the Study:

  • To evaluate weight misperception in adolescents.
  • To determine associations between self-perceived weight and various factors including BMI, diet, and lifestyle.

Main Methods:

  • A cross-sectional, population-based study involving 911 adolescents aged 10-19 years in Campinas, Brazil.
  • Multinomial logistic regressions were used to analyze weight self-perception.
  • Data were sourced from the Campinas Health Survey (ISACamp) and Campinas Food Consumption Survey (ISACamp-Nutri).

Main Results:

  • Nearly half of overweight/obese adolescents misperceived their weight.
  • Female gender, overweight/obesity, poor self-rated diet quality, and frequent snacking were associated with misperceptions.
  • Daily breakfast consumption and certain unhealthy food intake patterns also correlated with weight self-perception.

Conclusions:

  • Overweight/obese adolescents exhibit greater weight misperception.
  • Gender, BMI, diet quality, breakfast frequency, and consumption of unhealthy foods are linked to self-perceived weight.
  • Findings can inform targeted health promotion strategies for adolescents.