TY - JOUR
T1 - Risk Factors for Adopting Extreme Weight-Control Behaviors among Public School Adolescents in Salvador, Brazil: A Case-Control Study
AU - de Santana, Mônica Leila Portela
AU - Assis, Ana Marlúcia Oliveira
AU - Silva, Rita de Cássia Ribeiro
AU - Raich, Rosa María
AU - Machado, Maria Ester Pereira da Conceição
AU - Pinto, Elizabete de Jesus
AU - de Moraes, Lia Terezinha Lana Pimenta
AU - Ribeiro, Hugo da Costa
PY - 2016/2/17
Y1 - 2016/2/17
N2 - © 2015, © American College of Nutrition. Objective: This study identifies the risk factors for extreme weight-control behaviors among adolescents in public school in Salvador, northeastern Brazil. Methods: A case-control study nested to a cross-sectional study, including 252 adolescents of both sexes, age between 11 to 17 years, with 84 cases and 168 age-matched controls was conducted. The variable outcome is represented by extreme weight-control behaviors, integrated by following the variables: self-induced vomiting and the use of laxatives, diuretics, or diet pills. Covariables included body image dissatisfaction, dieting, prolonged fasting, and self-perception of body weight. The study also investigated the demographic and anthropometric variables and economic conditions of the students’ families. Conditional logistic regression was used to identify risk factors for the adoption of extreme weight-control behaviors among adolescents. Results: Among the adolescents investigated, the conditional logistic regression explained 22% the occurrence of extreme weight-control behaviors and showed that these behaviors were positively associated to overweight (odds ratio [OR] = 3.61; 95% confidence interval [CI], 1.42–9.17), body image dissatisfaction (OR = 3.87; 95% CI, 1.75–8.54), and the adoption of a restrictive diet (OR = 2.83; 95% CI, 1.16–6.91). Conclusions: The results of this study suggest that among adolescents, overweight, body image dissatisfaction, and restrictive diet are important risk factors to adoption of extreme weight-control behaviors.
AB - © 2015, © American College of Nutrition. Objective: This study identifies the risk factors for extreme weight-control behaviors among adolescents in public school in Salvador, northeastern Brazil. Methods: A case-control study nested to a cross-sectional study, including 252 adolescents of both sexes, age between 11 to 17 years, with 84 cases and 168 age-matched controls was conducted. The variable outcome is represented by extreme weight-control behaviors, integrated by following the variables: self-induced vomiting and the use of laxatives, diuretics, or diet pills. Covariables included body image dissatisfaction, dieting, prolonged fasting, and self-perception of body weight. The study also investigated the demographic and anthropometric variables and economic conditions of the students’ families. Conditional logistic regression was used to identify risk factors for the adoption of extreme weight-control behaviors among adolescents. Results: Among the adolescents investigated, the conditional logistic regression explained 22% the occurrence of extreme weight-control behaviors and showed that these behaviors were positively associated to overweight (odds ratio [OR] = 3.61; 95% confidence interval [CI], 1.42–9.17), body image dissatisfaction (OR = 3.87; 95% CI, 1.75–8.54), and the adoption of a restrictive diet (OR = 2.83; 95% CI, 1.16–6.91). Conclusions: The results of this study suggest that among adolescents, overweight, body image dissatisfaction, and restrictive diet are important risk factors to adoption of extreme weight-control behaviors.
KW - adolescents
KW - body image
KW - case-control study
KW - extreme weight control
KW - obesity
KW - risk factors
U2 - https://doi.org/10.1080/07315724.2014.951903
DO - https://doi.org/10.1080/07315724.2014.951903
M3 - Article
VL - 35
SP - 113
EP - 117
JO - Journal of the American College of Nutrition
JF - Journal of the American College of Nutrition
SN - 0731-5724
ER -