Disponibilidade domiciliar de lipídeos para consumo e sua relação com os lipídeos séricos de adolescentess

Abstract

Objective: To analyze the correlation between household availability of lipids to be consumed and the serum lipid profile in adolescents. Methods: This cross sectional study enrolled 95 adolescents aged 10-13 years, selected by random raffle in public schools of Viçosa, Southeast Brazil. A monthly shopping list was used to evaluate the availability of food per capita. A blood sample was collected from each adolescent and Brazilian Cardiology Society guideline was adopted as a reference for lipid profile adequacy. For categorical variables, the chi-square was applied and the Odds Ratio calculated. For comparison between groups, Mann-Whitney or Student's t test, Kruskall-Wallis test or ANOVA were applied. Association between biochemical parameters and lipid availability was evaluated by Spearman or Pearson correlation tests. Results: 27.2% of the total available energy came from lipids. The availability of saturated fatty acids, monounsaturated and polyunsaturated agreed with the recommendation for their consumption. Regarding serum lipids, 51.9% of boys and 55.8% of girls showed alteration in total cholesterol (p=0.66); 18.6 and 25.6% of boys and girls, respectively, showed increased triglycerides level (girls>boys; p=0.02). In relation to LDL, 21.2 and 32.6% of boys and girls, respectively, showed alteration (p=0.91). The prevalence of inadequacy for HDL was of 26.9 and 30.2% of boys and girls, respectively (p=0.93). There was no correlation between the available lipids for consumption and the serum lipids. The teenagers with more than 35% of lipids to be consumed had 9.1-fold higher levels of total cholesterol (95%CI 1.81-61.74). Conclusions: It is possible that adolescents with higher lipid availability at home show higher total cholesterol.