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Revista Española de Nutrición Humana y Dietética

On-line version ISSN 2174-5145Print version ISSN 2173-1292

Abstract

ANGEL-GONZALEZ, Mario et al. Cross-sectional study to compare academic performance in Mexican high school students based on their body mass index. Rev Esp Nutr Hum Diet [online]. 2020, vol.24, n.3, pp.218-225.  Epub Aug 16, 2021. ISSN 2174-5145.  https://dx.doi.org/10.14306/renhyd.24.3.987.

Introduction

Mexico ranks second in the world in childhood obesity. The impact of obesity on comprehensive health is evident; however, the evidence of its influence on academic performance in Mexican adolescents is still scarce. Objective: to compare the academic performance of high school students based on their Body Mass Index (BMI).

Material and Methods

Cross-sectional study in a probabilistic sample of 156 students. Weight and height were taken and BMI was classified according to the criteria of the World Health Organization (WHO). The average grade was used to measure academic performance. Descriptive statistics and Chi-square were applied to compare groups.

Results

50% women; the mean age was 13.1 years (DT=0.94). 32.7% were obese, 19.2% overweight and 48.1 % normal weight. The mean score was 8.6 (DT=0.82), 42.3% had a high performance, 38.5% an average performance and 19.2% a low performance. High performance was more frequent in the obesity group (40.9%), followed by normal weight (36.4%) and overweight (22.7%). When comparing the academic performance in the groups by BMI, statistical differences were found (p=0.01).

Conclusions

The prevalence of overweight and obesity is higher than the national average. There are differences in academic performance. Adolescents with obesity had a higher school performance.

Keywords : Obesity; Adolescent; Academic Performance; Body Mass Index; Students; Cross-Sectional Studies; Education.

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