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Discordancia en autopercepción de peso en población adulta de Talca

Author
Mujica, Verónica; Departamento de Bioquímica Clínica e Inmunohematología|Programa Cardiovascular Servicio de Salud Maule

Leiva, Elba; Departamento de Bioquímica Clínica e Inmunohematología

Rojas, Edgardo; Departamento de Bioquímica Clínica e Inmunohematología

Díaz, Nora; Instituto de Matemática y Física

Icaza, Gloria; Instituto de Matemática y Física

Palomo, Iván; Departamento de Bioquímica Clínica e Inmunohematología

Full text
http://www.revistamedicadechile.cl/ojs/index.php/rmedica/article/view/219
Abstract
Background: Obesity is related to underestimation of one’s ownweight. Aim: To determine the agreement between nutritional status and self perception of weightstatus in apparently healthy adults from Talca. Subjects and methods: Data were obtained froma survey applied at 1007 randomly selected subjects, aged 18-74 years old (66% women). Thesurvey identified age, gender, educational level and socioeconomic status. Self-perception ofweight was estimated with pictures representing the four nutritional status categories:underweight, normal, overweight and obese. Body Mass Index (BMI, kg/m2) was calculated todetermine nutritional status. Statistical analysis included kappa index, Bowman’s symmetry testand a logistic regression model to calculate the odds ratio in different variables related tounderestimation of weight. Results: Seventy three percent of subjects were overweight or obeseand 44% underestimated their nutritional status. Sixty percent of subjects with a BMI between 25and 26 kg/m2, perceived themselves as normal. A higher underestimation was observed in obesesubjects (odds ratio (OR) 17.2 95% confidence intervals (CI) 10.9-27.1), in overweight individuals(OR 3.5 95% CI 2.3-5.3), in men (OR 1.5 95% CI 1.1-2.1) and in people aged from 45 to 59 years(OR 1.7 95% CI 1.0-2.7). Conclusion: Almost half of studied population had an erroneous selfperceptionof weight, mainly due to underestimation. Obese subjects, males and people older than45 years were those with the higher degree of underestimation
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Artes, Arquitectura y UrbanismoCiencias Agrarias, Forestales y VeterinariasCiencias Exactas y NaturalesCiencias SocialesDerechoEconomía y AdministraciónFilosofía y HumanidadesIngenieríaMedicinaMultidisciplinarias
Institutions
Universidad de ChileUniversidad Católica de ChileUniversidad de Santiago de ChileUniversidad de ConcepciónUniversidad Austral de ChileUniversidad Católica de ValparaísoUniversidad del Bio BioUniversidad de ValparaísoUniversidad Católica del Nortemore

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