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The study of the incidence of overweight and obesity as well as body composition and insulin resistance in children from rural communities is scarce. The aims of the study were a) to characterize the adiposity and homeostasis model assessment of insulin resistance (HOMA-IR) in school-age children from a rural community and b) to determine factors associated with fat mass and HOMA-IR in this population. A total of 41 school-aged children (15 males and 26 females; 9.9 ± 2.5 years old) from a Mexican rural community was studied. Trained observers had previously assessed the children's nutritional status during the first 6 months of life. Anthropometry, energy intake, physical activity, body composition and biochemical parameters were measured. The overall prevalence of overweight/obesity was 7.3%. The mean energy intake of children was below international recommendations (1,235 ± 400 kcal/day). A higher percentage of fat mass was observed in females (20.3 ± 8.5) than in males (14.1 ± 5.1) (p = 0.006). There were seven children with IR, but we did not observe a correlation between HOMA and BMI percentiles (Pearson's r = 0.09, p = 0.57). In a regression model, gender (females) was the primary factor associated with the percentage of fat mass. The growth velocity during the first 6 months of life was associated with HOMA-IR. There is a low frequency of overweight and obesity in children from rural communities in Mexico. However, these children appear to have increased risk of adiposity and insulin resistance. Copyright © 2015 IMSS. Published by Elsevier Inc. All rights reserved.

Dra. López Alarcón M.

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