Discussion and conclusionThe Spanish version of the YFAS showed psychometric properties not different from the original and adapted existing versions. Therefore, YFAS Spanish version could be useful in healthcare and clinical research in Mexican population.Key words: Obesity, addictive behavior, validation study. RESUMEN IntroducciónLa obesidad es la acumulación excesiva de grasa corporal, lo que condiciona una alta comorbilidad. El consumo descontrolado de alimentos hipercalóricos es causa de su desarrollo; ésta es una conducta de características similares a la de pacientes con adicción a sustancias. La escala de adicción a los alimentos, YFAS (Yale Food Addiction Scale), permite identificar a sujetos con conducta adictiva a los alimentos. ObjetivoValidar la escala YFAS en español en una muestra de población mexicana adulta. MétodoLa muestra de participantes (160) respondió a la encuesta en dos ocasiones, con un período de tres semanas entre cada aplicación. La pertinencia de un modelo factorial se corroboró con las pruebas de esfericidad de Bartlett y la medición del parámetro de Kaiser-Meyer-Olkin. ResultadosEl α de Cronbach = 0.7963 corroboró la consistencia interna de la escala. Para la confiabilidad se obtuvo el coeficiente de Spearman 1 Laboratorio de Neurofisiología Molecular, Instituto Nacional de Psiquiatría Ramón de la Fuente Muñiz. ABSTRACT IntroductionObesity has a multifactorial etiology and is a global public health problem which also affects Mexican population. Obesity is characterized by excessive body adiposity, as well as high prevalence of diverse comorbidities, which diminish life quality. Sedentary lifestyle and hypercaloric food overconsumption are amongst the causes of obesity. It has been suggested that some traits seen in obese patients may represent an addictive behavior, similar to those observed in substance-dependent patients.
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