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Nutrición Hospitalaria

On-line version ISSN 1699-5198Print version ISSN 0212-1611

Nutr. Hosp. vol.32 n.6 Madrid Dec. 2015 

ORIGINAL / Obesidad


Anthropometric indicators of general and central obesity in the prediction of asthma in adolescents; central obesity in asthma

Indicadores antropométricos de la obesidad general y central en la predicción de asma en adolescentes; obesidad central en asma



Franceliane Jobim Benedetti1, Vera Lúcia Bosa2, Juliana Mariante Giesta3 and Gilberto Bueno Fischer4

1Nutritionists, Master's Graduate Program in Health child and adolescent in Universidade Federal do Rio Grande do Sul (UFRGS) and Professor Graduate in Centro Univeritário Franciscano.
2Nutritionists, Ph.D. in Health of Children and Adolescents, Professor Graduate in Universidade Federal do Rio Grande do Sul (UFRGS).
3Nutritionist, Graduate Program of Multiprofessional Residency in Health, concentration in Child and Adolescent Health of the Hospital de Clínicas de Porto Alegre (HCPA).
4Ph.D. in Medicine Pneumology, Professor of Pediatrics at the Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA) and Professor Graduate Program in Medical Science-Pediatrics (UFRGS), Brazil.




Objective: to determine the prevalence of asthma risk associated with anthropometric indicators of excess weight and body fat distribution.
Methodology: cross-sectional study including adolescents between 10 and 19 years of age. The anthropometric indicator used to classify excess weight was the body mass index (BMI-Z); those used for abdominal adiposity were waist circumference (WC), waist-to-height ratio (WHtR) and the conicity index (CI). Asthma characteristics were evaluated using the International Study of Asthma and Allergies in Childhood (ISAAC) questionnaire. The significance level was 5%, and the analyses were performed using Statistical Package for the Social Sciences (SPSS) Version 18.0.
Results: adolescent students (n = 1362; 788 [57.9%] female) with a mean age of 15.65 ± 1.24 years were evaluated. A high prevalence of asthma, excess weight (BMI-Z) and excess abdominal adiposity (WC and WHtR) was observed in the females. Only CI values for excess abdominal adiposity were higher for males than for females. Adolescents with excess abdominal adiposity, as shown by the WHtR, had a 1.24 times higher risk of having asthma compared with non-obese adolescents. Boys with excess abdominal adiposity, as classified by CI, presented a 1.8 times greater risk of asthma. The risk of severe asthma was 3 times higher among adolescents who were classified as severely obese via the BMI-Z.
Conclusion: this study showed that excess body weight and abdominal obesity are associated with an increased risk of asthma and asthma severity in adolescents. Thus, additional BMI measurements are suggested for asthmatics.

Key words: Adolescent. Asthma. Body mass index. Abdominal obesity.


Objetivo: determinar la prevalencia de riesgo de asma asociado con indicadores antropométricos de exceso de peso y la distribución de la grasa corporal.
Metodología: estudio transversal que incluye adolescentes entre 10 y 19 años de edad. El indicador antropométrico utilizado para clasificar el exceso de peso fue el índice de masa corporal (IMC-Z); los utilizados para la adiposidad abdominal fueron la circunferencia de la cintura (CC), la relación cintura-estatura (RCE) y el índice de conicidad (IC). Las características del asma se evaluaron utilizando el cuestionario International Study of Asthma and Allergies in Childhood (ISAAC). El nivel de significación fue del 5%, y los análisis se realizaron con el Statistical Package for the Social Sciences (SPSS) versión 18.0.
Resultados: fueron evaluados estudiantes adolescentes (n = 1362; 788 [57,9%] mujeres) con una edad media de 15,65 ± 1,24 años. Se observó en las mujeres una alta prevalencia de asma, exceso de peso (IMC-Z) y exceso de adiposidad abdominal (WC y RCE). Solo los valores de IC para el exceso de adiposidad abdominal fueron mayores para los hombres que para las mujeres. Los adolescentes con exceso de adiposidad abdominal, como lo demuestra la RCE, tenían 1,24 veces más riesgo de tener asma en comparación con los adolescentes no obesos. Los niños con exceso de adiposidad abdominal, según la clasificación de IC, presentaron 1,8 veces mayor riesgo de asma. El riesgo de asma grave era 3 veces mayor entre las adolescentes que fueron clasificados como severamente obesos a través del IMC-Z.
Conclusión: este estudio mostró que el exceso de peso y la obesidad abdominal se asocian con un mayor riesgo de asma y asma severa en adolescentes. Por lo tanto, se sugieren mediciones de IMC adicionales para los asmáticos.

Palabras clave: Adolescente. Asma. Índice de masa corporal. Obesidad abdominal.

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