RESUMO

Abstract Introduction Interventions based on cognitive dissonance theory are the most effective for preventing eating disorders. Objective To identify the changes at one year follow-up of a universal prevention intervention in disordered eating behaviors (DEB), thin-ideal internalization (TII), and drive for muscularity (DM). Method A pre-experimental, pretest-posttest study was conducted on 602 university student subjects (76.1% women and 23.9% men) with an average age of 20.74 years at a public (30.6%) and a private university (69.4%) in Mexico City. A Split Plot ANOVA was performed with the intrasubject variable equal to each measurement (pretest, posttest, and follow-up), as well as the sex and body mass index (BMI) intersubject variables to analyze whether there was a significant interaction between these variables and the changes in dependent variables, as well as the changes through each measurement by group. Results In the intrasubject analyses, statistically significant differences were found for DEB through the various measurements, without taking the interactions into account. Statistically significant interactions were observed between each measurement and BMI, and between each measurement and sex and BMI for the DM variable. Discussion and conclusion Since a reduction of TII in women and DM in men was achieved, together with a decrease in DEB in women, the workshop can be said to have fully achieved its objectives for women and partly so for men.

Resumen Introducción Las intervenciones basadas en la teoría de la disonancia cognoscitiva son las más efectivas para la prevención de los trastornos de la conducta alimentaria. Objetivo Conocer los cambios a un año de seguimiento de una intervención de prevención universal en las conductas alimentarias de riesgo (CAR), interiorización del ideal estético de la delgadez (IED) y la motivación por la musculatura (MM). Método Se llevó a cabo un estudio pre-experimental pretest-postest en 602 (76.1% mujeres y 23.9% hombres) sujetos estudiantes universitarios con una edad promedio de 20.74 años en una universidad pública (30.6%) y una privada (69.4%) de la Ciudad de México. Se realizó un ANOVA split plot con la variable intrasujetos igual a cada medición (pretest, postest y seguimiento) así como el sexo y el índice de masa corporal (IMC) variables intersujetos, para analizar si existía una interacción significativa entre dichas variables y los cambios sobre las variables dependientes, así como los cambios a través de cada medición por grupo. Resultados en los análisis intrasujetos se encontraron diferencias estadísticamente significativas para las CAR a través de las distintas mediciones, sin tomar en cuenta las interacciones. Se observaron interacciones estadísticamente significativas entre cada medición y el IMC, y entre cada medición con el sexo y el IMC para la variable MM. Discusión y conclusión Se logró la reducción de la IED en las mujeres y de la MM en los hombres, así como la disminución de las CAR en las mujeres por lo que se considera que el taller logra sus objetivos para las mujeres y parcialmente para los varones.

RESUMO

BACKGROUND: Evidence suggests that disordered eating behaviors can result in eating disorders, which is already a reality for the Mexican population, representing an increasingly complex public health problem. Early detection is therefore essential. AIM OF THE STUDY: To obtain the sensitivity, specificity, and cut-off points of the Brief Questionnaire for Measuring Disordered Eating Behaviors to identify eating disorders in Mexican women. METHODS: The Eating Disorders Examination-Questionnaire and the Brief Questionnaire for Disordered Eating Behaviors were applied to patients diagnosed with eating disorders at two public health institutions and university students. ROC analysis was performed to determine sensitivity, specificity, predictive values, and cut-off points. RESULTS: Three cut-off points were obtained: first: eight points (Sensitivity = 60.7%, Specificity = 92.2%), showing low risk; second: 11 points (sensitivity = 24.1%; specificity = 98.9%), detecting moderate risk; and, finally, 15 points and over (sensitivity = 4.46%; specificity = 100%), indicating high risk. CONCLUSIONS: The instrument adequately identifies those individuals who are not at risk for eating disorders, making it possible to channel prevention efforts towards those who do have DEB, thus optimizing resources. LEVEL OF EVIDENCE: Level III: case-control analytic study.

Assuntos

RESUMO

BACKGROUND: Orthorexia Nervosa is an eating disorder that has been scarcely studied in characteristics, causes and symptoms, as well as in consequences and the relationship with other eating disorders. The present study had as its main objective the analysis of said relationship and inquisition of the possibility of predicting the development of an eating disorder from the presence of orthorexia nervosa. Also, it analyzed the differences by sex in Mexican university students. METHODS: The sample consisted of 911 university students (65.4% women and 34.6% men), between an age range of 18 to 28 years old (M = 21 and SD = 1.9). Two questionnaires were responded: the ORTO14MX, a version of the ORTO-15 instrument previously validated in Mexican students, and the EDE-Q in its short version. Besides, sociodemographic data of interest was obtained and used for this study. RESULTS: The Pearson's correlation analysis demonstrated statistically significant relations, from mild to moderate, between the factors that make up both scales, while the linear regression analysis demonstrated that 40% of the variance is explained with the factors from the ORTO-14MX scale in the overall sample for the study. Additionally, statistically significant differences were found between men and women regarding all the subscales conforming the instruments that measured orthorexia and eating disorders. CONCLUSION: These results show a moderate predictive degree, that as promising as it is, isn't conclusive. Likewise, it was confirmed that women are still more vulnerable to develop orthorexia or another eating disorder. It can be concluded that there's a vast necessity for more studies measuring the relationship between orthorexia nervosa and eating disorders, in Latinamerican samples with diverse characteristics in sociocultural backgrounds, and clinical samples.

INTRODUCCIÓN: La ortorexia nervosa es un trastorno de la conducta alimentaria que ha sido poco estudiado, tanto en sus características, causas y síntomas, como en sus consecuencias y en la relación con otros trastornos de la conducta alimentaria. El presente estudio tuvo como objetivo analizar dicha relación e indagar si es posible predecir la aparición de un trastorno de la conducta alimentaria a partir de la presencia de ortorexia nervosa, además de analizar diferencias por sexo en estudiantes universitarios mexicanos. MÉTODO: Participaron en el estudio 911 estudiantes universitarios (65.4% fueron mujeres y el 34.6% hombres), en un rango de edades entre 18 y 28 años (M = 21 y DE = 1.9) que respondieron dos cuestionarios que son: ORTO-14MX, una versión del instrumento ORTO-15 previamente validada en estudiantes mexicanos y el EDE-Q en su versión corta, además de proporcionar algunos datos sociodemográficos de interés para este estudio. RESULTADOS: El análisis de correlación de Pearson reveló relaciones estadísticas significativas de leves a moderadas entre los factores que componen ambas escalas, mientras que el análisis de regresión lineal mostró un que un 40% de la varianza es explicada a partir de los factores que componen la escala ORTO-14MX en la muestra de estudio. Adicionalmente se encontraron diferencias estadísticamente significativas entre hombres y mujeres con respecto a todas las subescalas de los instrumentos que midieron ortorexia y trastornos de la conducta alimentaria. CONCLUSIONES: Estos resultados mostraron un grado de predicción moderada que sí bien es prometedora, no resulta totalmente concluyente. Asimismo, se confirmó que las mujeres siguen siendo más vulnerables a padecer ortorexia o un TCA. Se concluye la necesidad de continuar estudiando la relación entre la ortorexia y los TCAs, en muestras latinoamericanas con otras características socio demográficas y en población clínica.

RESUMO

Resumen La presión sociocultural sobre los estudiantes universitarios, y en particular los que estudian nutrición, influye de manera negativa en su imagen corporal (IC), lo que favorece la adopción de conductas alimentarias de riesgo (CAR), independientemente de su estatus nutricional (ETN). El propósito del presente trabajo fue analizar la relación entre insatisfacción corporal (INC), ETN y CAR en estudiantes de nutrición. Participaron 370 estudiantes de una universidad privada (93.5% mujeres), con edad promedio de 19.5 años (DE = 2.5). Aunque 81% de los estudiantes era normopeso, 72.3% presentaron INC. Los participantes con obesidad, sobrepeso o normopeso presentaron riesgo moderado de presentar CAR (p < .05), pero no aquellos que estaban satisfechos con su IC (p < .05). Específicamente, los estudiantes que desearon tener una silueta más delgada mostraron mayor riesgo de presentar CAR (OR = 2.97, p < .05) vs. quienes deseaban tener una más robusta (p = .76). Además, a mayor índice de masa corporal, mayor práctica de ejercicio para bajar de peso, dietas restrictivas, atracones y pérdida de control al comer (p < .05). Es necesario desarrollar intervenciones orientadas a mejorar la satisfacción corporal para prevenir CAR entre estudiantes universitarios, y con mayor énfasis en aquellos que optan por cursar la carrera de nutrición.

Abstract The sociocultural pressure on university students, and particularly those studying Nutrition, negatively influences their body image (BI), which favors the adoption of risky eating behaviors (REB), regardless of their nutritional status (NS). The purpose of this study was to describe the relationship between body dissatisfaction (BD), NS and REB in Nutrition students. A total of 370 students from a private university participated (93.5% women), with a mean age of 19.5 years (SD = 2.5). Although 81% of the students were normal weight, 72.3% had BD. Participants with obesity, overweight or normal weight had moderate risk of REB (p < .05), but not those who were satisfied with their BI (p < .05). Specifically, students who wished to have a thinner silhouette showed greater risk of REB (OR = 2.97, p < .05) vs. those who wished to have a robust silhouette (p = . 76). In addition, the higher body mass index, the more exercise to lose weight, restrictive diets, binge eating and loss of control when eating (p < .05). It is necessary to develop interventions aimed at improving body satisfaction to prevent REB among university students, with greater emphasis on those who choose Nutrition as a professional career.