Portal de Periódicos da CAPES

Sobrepeso medido por IMC o percibido y comportamientos de control del peso en adolescentes universitarios de Ciudad Guzmán, Jalisco, México.

2012; Latin American Nutrition Archives; Volume: 62; Issue: 1 Linguagem: Inglês

2309-5806

Carlos Alejandro Hidalgo-Rasmussen, Guadalupe Ramírez‐López, Rosa Montaño Espinoza, Alfredon Hidalgo-San Martín,

Eating Disorders and Behaviors

RESUMEN. El objetivo fue evaluar las asociaciones entre comportamientos de control de peso y sobrepeso medido por IMC, sobrepeso percibido o percepcion erronea del peso en adolescentes por genero. Participaron 492 adolescentes universitarios de 17 a 19 anos de edad. Se utilizo un cuestionario auto aplicado en linea y se midio peso y estatura. Los analisis estadisticos incluyeron kappa ponderada y regresion logistica multivariada. La concordancia entre el peso percibido y el medido por IMC fue 78.7% y la kappa ponderada=0.62. Los adolescentes que percibieron sobrepeso intentaron con mas frecuencia bajar de peso, hacer ejercicio y comer menos alimentos que los que tenian sobrepeso medido por IMC. Una cuarta parte intento bajarlo aun sin percibir o tener sobrepeso real. La posibilidad de tratar de bajar de peso fue mayor en hombres y mujeres con sobrepeso percibido (RM=18.7, IC 95% 6.3-55.3 y RM=10.4, IC 95% 4.5-24.2 respectivamente) y en mujeres que sobrestimaron el peso corporal (RM =6.0, IC 95% 2.812.7). Hubo menos posibilidad de tratar de bajar peso cuando se subestimo el peso en hombres (RM = 0.03, IC 95% 0.01-0.12) y mujeres (RM=0.19, IC 95% 0.05-0.70). En conclusion, el comportamiento de bajar de peso se explica mejor en adolescentes en ambos generos que percibian sobre peso y en mujeres que lo sobre estimaban, mientras que los hombres intentaron menos bajarlo si subestimaban su peso. Palabras clave: Percepcion del peso, sobrepeso, perdida de peso, indice de masa corporal, conducta del adolescente, nutricion del adolescente. SUMMARY. Perceived or BMI-measured overweight and weight controlbehaviors in undergraduate adolescents from Ciudad Guzman, Jalisco, Mexico. The aim was to evaluate associations between weight control behaviorsand overweight measured by BMI, overweight perception or inaccurate weight perception. 492 undergraduate adolescents from 17 to 19 years old participated in the study. A self-administered questionnaire on line was applied and weight and height were measured. Statistical analysis included weighted kappa and multivariate logistic regression. The concordance between weight perception and that evaluated by BMI was 78.7%, weight kappa = 0.62. Adolescents who perceived overweight tried to lose weight, exercised and ate less food more frequently than those who were overweight evaluated by BMI. A quarter tried to lose weight eventhough they did not perceive or were actually overweight.The odds of trying to lose weight were higher in men and women who perceived overweight (OR = 18.7,CI 95% 6.3-55.3and OR = 10.4, IC 95% 4.5-24.2, respectively) andwomen who overestimated overweight (OR = 6.0, CI 95% 2.8-12.7).The odds of tying to lose weight when weight was underestimated were less in men (OR = 0.03, CI 95% 0.01-0.12) and women (OR = 0.19, IC 95% 0.05-0.70). In conclusion the behavior of trying to lose weight was better explained among adolescents of both genders who perceived overweight and among girls who overestimated it.