Abstract
Objective: To associate anthropometric indicators and blood pressure with waist-to-height ratio in school students. Methods: Cross-sectional study conducted with 342 school students aged 6-11 years from a municipality of Rio Grande do Sul, Brazil, with data collected from March to November of 2014 by measuring weight, height, systolic and diastolic blood pressure (SBP/DBP), waist circumference (WC) and the waist-to-height ratio (WHtR). T-student and Qui-squared tests were used with significance level set at 5% (p≤0.05). Results: Of all students, 54.4% (n=186) were female, 32.7% (n=112) were overweight and 5% (n=17) were obese according to BMI classification; 11.1% (n=38) were pre-hypertensive and 5% (n=17) had stage I hypertension according to the overall SBP/DPB classification; 37.1% (n=127) had an increased WC and 23.4% (n=80) had an increased WHtR. There were no students with stage II and III hypertension in the sample. Thinness and normal weight (p≤0.01), normal SBP and DPB (p≤0.01) and normal WC (p≤0.01) were significantly associated with normal WHtR whereas overweight and obesity (p≤0.01), pre-hypertension (p≤0.01) and increased WC (p≤0.01) were significantly associated with increased WHtR. Conclusion: The male gender presented significantly increased anthropometric measures than the female gender. Thinness, normal weight, blood pressure and waist circumference were associated with normal waist-to-height ratio (WHtR) whereas overweight, obesity, prehypertension and increased WC (p≤0.01) were associated with increased WHtR.
Highlights
Of all students, 54.4% (n=186) were female, 32.7% (n=112) were overweight and 5% (n=17) were obese according to BMI classification; 11.1% (n=38) were pre-hypertensive and 5% (n=17) had stage I hypertension according to the overall SBP/DPB classification; 37.1% (n=127) had an increased waist circumference (WC) and 23.4% (n=80) had an increased waist-to-height ratio (WHtR)
Results: Of all students, 54.4% (n=186) were female, 32.7% (n=112) were overweight and 5% (n=17) were obese according to BMI classification; 11.1% (n=38) were pre-hypertensive and 5% (n=17) had stage I hypertension according to the overall SBP/DPB classification; 37.1% (n=127) had an increased WC and 23.4% (n=80) had an increased WHtR
Prevalência de pré-hipertensão e de hipertensão arterial e avaliação de fatores associados em crianças e adolescentes de escolas públicas de Salvador, Bahia, Brasil
Summary
Objetivo: Associar os indicadores antropométricos e pressão arterial com a relação cintura/ estatura em escolares. Resultados: Do total de escolares, 54,4% (n=186) eram do sexo feminino, 32,7% (n=112) estavam com sobrepeso e 5% (n=17) eram obesos, de acordo com a classificação do IMC; 11,1% (n=38) eram pré-hipertensos, 5% (n=17) estavam com HAS estágio I, na classificação da PAS/PAD geral; 37,1% (n=127) tinham CC elevada e 23,4% (n=80), RCE elevada. Magreza e eutrofia (p≤0,01), PAS e PAD normal (p≤0,01) e CC normal (p≤0,01) foram significativamente associadas à classificação de RCE normal, assim como sobrepeso e obesidade (p≤0,01), pré-hipertensão (p≤0,01) e CC elevada (p≤0,01) foram significativamente associados à RCE elevada. Eutrofia, pressão arterial sistêmica e circunferência de cintura normais foram associadas à relação cintura/estatura (RCE) normal, enquanto sobrepeso, obesidade, pré-hipertensão e circunferência de cintura elevada estiveram associados à classificação elevada de RCE.
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