Body mass index and abdominal waist values are related to increased cardiometabolic risk in schoolchildren aged five to ten years.

OBJECTIVE: To evaluate the frequency of obesity and cardiometabolic risk in schoolchildren under ten years old. METHODS: This is a cross-sectional study with schoolchildren (n=639) aged five to ten years in a municipally of southern of Brazil. The cardiometabolic risk was calculated from values of body mass index (BMI), waist circumference (WC), diastolic (DBP) and systolic blood pressure (SBP), blood glucose levels, triglycerides and total cholesterol (TC). Odds ratio (OR), Spearman correlation and principal component analysis (PCA) were analyzed. RESULTS: Independent of sex, elevated WC and BMI were related to higher values of SBP, DBP, and TC in schoolchildren. The frequency of cardiometabolic risk was 6.0% in girls and 9.9% in boys. Schoolchildren with elevated values of SBP, triglycerides and TC presented high OR for cardiometabolic risk. PCA indicated that schoolchildren with high WC (p>80) presented more frequently altered glucose levels, triglycerides, and TC. CONCLUSIONS: Obesity, especially when associated with elevated WC, is related to metabolic dysfunctions and cardiometabolic risk in schoolchildren under ten years of age. These findings indicate the urgency of stablishing metabolic risk for this age group, enabling early diagnosis and adequate treatment, to prevent the development of diabetes and cardiovascular dysfunction throughout life.

Body mass index and abdominal waist values are related to increased cardiometabolic risk in schoolchildren aged five to ten years / Valores do índice de massa corpórea e circunferência abdominal estão relacionados a elevado risco cardiometabólico em escolares com idade de cinco a dez anos

ABSTRACT Objective: To evaluate the frequency of obesity and cardiometabolic risk in schoolchildren under ten years old. Methods: This is a cross-sectional study with schoolchildren (n=639) aged five to ten years in a municipally of southern of Brazil. The cardiometabolic risk was calculated from values of body mass index (BMI), waist circumference (WC), diastolic (DBP) and systolic blood pressure (SBP), blood glucose levels, triglycerides and total cholesterol (TC). Odds ratio (OR), Spearman correlation and principal component analysis (PCA) were analyzed. Results: Independent of sex, elevated WC and BMI were related to higher values of SBP, DBP, and TC in schoolchildren. The frequency of cardiometabolic risk was 6.0% in girls and 9.9% in boys. Schoolchildren with elevated values of SBP, triglycerides and TC presented high OR for cardiometabolic risk. PCA indicated that schoolchildren with high WC (p>80) presented more frequently altered glucose levels, triglycerides, and TC. Conclusions: Obesity, especially when associated with elevated WC, is related to metabolic dysfunctions and cardiometabolic risk in schoolchildren under ten years of age. These findings indicate the urgency of stablishing metabolic risk for this age group, enabling early diagnosis and adequate treatment, to prevent the development of diabetes and cardiovascular dysfunction throughout life.

RESUMO Objetivo: Avaliar a frequência de obesidade e risco cardiometabólico em escolares menores de dez anos de idade. Métodos: Este é um estudo transversal com escolares (n=639) com idade de cinco a dez anos de um município do Sul do Brasil. O risco cardiometabólico foi calculado com base nos valores do índice de massa corpórea (IMC), circunferência da cintura (CC), pressão arterial sistólica (PAS) e diastólica (PAD), valores sanguíneos de glicose, triglicerídeos e colesterol total. Odds ratio (OR), correlação de Spearman e análise de componentes principais (PCA) foram obtidos. Resultados: Independentemente do sexo, CC e IMC aumentados foram relacionados com maiores valores de PAS, PAD e colesterol total. A frequência de risco cardiometabólico foi de 6,0% nas meninas e 9,9% nos meninos. Escolares com elevados valores de PAS, triglicerídeos e colesterol total tinham alto OR para risco cardiometabólico. A PCA mostrou que escolares com alta CC (p>80) apresentam mais frequentemente alterações nos níveis sanguíneos de glicose, triglicerídeos e colesterol total. Conclusões: A obesidade, especialmente quando associada a elevados valores de CC, está relacionada com disfunções metabólicas e risco cardiometabólico em escolares menores de dez anos de idade. Estes achados indicam a urgência de estabelecer o risco metabólico para essa faixa etária, possibilitando o diagnóstico precoce, o adequado tratamento para evitar o desenvolvimento de diabetes e disfunções cardiovasculares ao longo da vida.