correlação entre o índice de massa corporal e a prega cutânea tricipital em crianças da cidade de paulínia, são paulo, sp body mass index and triceps skinfold correlation in children from paulínia city, são paulo, sp

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ID: 147450
2003
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Abstract
O índice de massa corporal (IMC) tem sido indicado como método de escolha para o diagnóstico da obesidade em adultos e crianças. OBJETIVO: Estudar a correlação existente entre o IMC e a prega cutânea tricipital (PCT). MÉTODOS: Foram avaliadas 4.236 crianças de 3,1 a 10,9 anos, 48,3% do sexo masculino e 51,6% feminino, de quatro estudos realizados em Paulínia, SP, Brasil. Mediu-se o peso e a estatura, com os quais calculou-se o IMC. A PCT foi medida com paquímetro Holtain. Os dados foram transformados em escores Z e comparados à curva norte-americana (Frisancho, 1993). A população foi dividida em grupos de acordo com os escores Z do IMC: grupo A) escore Z < - 1; B) -1 < escore Z < 1; C) escore Z > 1. Realizou-se uma análise de regressão linear múltipla (método stepwise). Os dados foram processados no SPSS. RESULTADOS: O grupo A apresentou menor variabilidade na PCT (média 7,8; DP = 2,3) quando comparado aos demais (B: média 10,1; DP=4 e C: média 17,8; DP=4,4). Na análise da regressão linear, considerando todos os casos, a PCT apresentou R²=0,478. Nos grupos B e C a PCT teve R²=0,364 e 0,368, respectivamente enquanto no grupo A foi apenas 0,032. CONCLUSÃO: A correlação entre o IMC e a PCT é elevada no grupo de crianças com risco de obesidade (grupo C), o que justifica a substituição do uso da PCT pelo IMC em estudos populacionais de obesidade em escolares brasileiros.
Body mass index (BMI) has been considered a criterion to define and analyse obesity in adults and children. BACKGROUND: the purpose of this study was to evaluate the correlation between BMI and triceps skinfold (TSF). METHODS: there were studied 4,236 children (3.1-10.9y); 48.3%M:51.6%F, from four studies made in Paulínia, SP-Brazil. Height, weight and TSF (Holtain caliper) were measured. For each children BMI was calculated and transformed in SDS, according to North American data (Frisancho, 1993). Multiple linear regression analysis (stepwise) was used for the whole population and in three groups according to BMI: A) SDS <-1.0; B) -1.0 < SDS < 1.0; C) SDS ³ 1.0. Data were processed with SPSS software. RESULTS: in group A, the TSF (7.8 ± 2.3) variability was lower when compared with the groups B (10.1 ± 4.0) and C (17.8 ± 6.2). In multiple linear regression with the whole population, R² = 0.478 for TSF. In groups B and C, R² = 0.364 and 0.368 respectively for TSF, and in group A it was only 0.032. CONCLUSIONS: these observations demonstrated a height correlation between BMI and TSF in children with obesity risk (group C). Therefore, we conclude that, in Brazil BMI can be used for children's research of obesity in population studies, instead of TSF.
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Authors ;Mariana Porto Zambon;Maria de Lurdes Zanolli;Denise Barbieri Marmo;Luís Alberto Magna;Luis Manuel Guimarey;André Moreno Morcillo
Journal acta crystallographica section e
Year 2003
DOI
10.1590/S0104-42302003000200029
URL
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0104-42302003000200029
Keywords
body mass index avaliação nutricional

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