Introduction:

Nutritional intergenerationality is recognized as one of the factors that influences the increase in obesity prevalence, mainly through maternal generations. Little is known about this situation in our country.

Objective:

to evaluate the correlation of the body mass index (BMI) and the waist circumference (WC) of girls and adolescents compared to their female ancestry up to the third generation during the months of July to September 2019.

Materials and methods:

This was an analytical, cross-sectional study of 98 trios (girls and adolescents, maternal mothers and grandmothers). Anthropometric data of the trios (weight, height and WC) were collected. Correlations were made between: the BMI of the mother and the grandmother with the Z score of the BMI/E of the girls and adolescents and the WC of the mother with the girls and adolescents. Pearson's correlation coefficient was applied. The study was approved by the Ethics Committee (Approval # 460/19).

Results:

On average, the girls and adolescents were 10.1±1.1 years old, had a BMI/Age Z score of 0.8±1.6 SD and a WC of 69.5±9.7 cm; the mothers were 37.4±6.8 years old, had 13 years of schooling, BMI 28.8±7.3 kg/m2 and WC 92.1±13.4 cm; and the grandmothers 64.9±10.8 years, had 7 years of schooling and 28.7±6.9 kg/m2 BMI (Overweight). The correlation of the BMI of the mother with the Z score of the girls and adolescents was r: 0.2937 (p<0.05), and of the BMI of the grandmother with the Z score of the girls and adolescents was r: 0.018 ( p>0.05). The WC correlation between mother and girl was r: 0.264, (p<0.05).

Conclusion:

The BMI and WC of girls and adolescents correlate with the BMI and WC of mothers, but its power is not very strong. The daughters of obese mothers have higher BMI measured by Z score.

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