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. 2020 Jan;66(1S):S9-S16.
doi: 10.1016/j.jadohealth.2019.09.007.

Parent-Related Normative Perceptions of Adolescents and Later Weight Control Behavior: Longitudinal Analysis of Cohort Data From Brazil

Safa Abdalla  1 , Romina Buffarini  2 , Ann M Weber  3 , Beniamino Cislaghi  4 , Janaína Calu Costa  2 , Ana Maria B Menezes  2 , Helen Gonçalves  2 , Fernando C Wehrmeister  2 , Valerie Meausoone  5 , Cesar G Victora  2 , Gary L Darmstadt  6
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Parent-Related Normative Perceptions of Adolescents and Later Weight Control Behavior: Longitudinal Analysis of Cohort Data From Brazil

Safa Abdalla et al. J Adolesc Health. 2020 Jan.

Abstract

Purpose: Body image-related norms can be imposed by parents and can shape adolescents' body satisfaction in consequential ways, yet evidence on long-term effects is scarce. Longitudinal data from a country with strong body image focus provided a unique opportunity to investigate long-term influences of normative parent-related perceptions.

Methods: Multinomial logistic regression was used on data from a 1993 birth cohort in Brazil to investigate the association of normal-body mass index (BMI) adolescents' perception of their parent's opinion of their weight at age 11 years with their weight control attempts at 18 years, testing a mediating role for body dissatisfaction at age 15 years. All models controlled for body dissatisfaction at age 11 years and BMI change between ages 11 and 15 years.

Results: A total of 1150 boys and 1336 girls were included. Girls were more likely than boys to diet without nutritionist advice to lose weight (51.5% vs. 34.3% among boys) and use medication to gain weight (12.7% vs. 4.2%). Normal-BMI adolescents who reported at age 11 years that their parents thought they were thin had higher odds of feeling thinner than ideal at age 15 years (odds ratio 2.8, 95% confidence interval 1.8-3.2; and odds ratio 2.0, 95% confidence interval 1.5-2.7) among boys and girls, respectively). Feeling thinner than ideal at age 15 years was associated among girls with higher odds of weight gain attempts at age 18 years. Similar patterns appeared among girls reporting that their parents thought they were fat at age 11 years, feeling fatter than ideal at age 15 years and having higher odds of weight loss attempts at age 18 years. Body dissatisfaction was a statistically significant mediator among girls but not boys.

Conclusions: A long-term influence of parent-related perceptions via a likely trajectory of body dissatisfaction is evident among girls.

Keywords: Body dissatisfaction; Body image; Dieting; Parent perceptions; Parental relationships; Weight management.

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Figures

Figure 1
Figure 1
Conceptual framework for the association between perceived parent’s opinion at age 11 y and weight control behavior at age 18 y.
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