Every schools was in fact categorized from the Chilean Ministry out-of Studies towards around three membership, namely low-finding universities, mid-finding universities and you can higher-achieving schools, depending brand new overall performance of the children throughout SIMCE screening ( thirty-two ) .
Anthropometric specifications and you may nutritional position
Standardized procedures were used to measure students’ weight to the nearest 0·1 kg, using a Seca scale (SECA, Hamburg, Germany), and height to the nearest 0·1 cm, using a Holtain stadiometer. All instruments were verified before measuring each participant ( Reference Gibson 33 ) . BMI (kg/m 2 ) and height-for-age were evaluated, and Z-scores were obtained according to the references of the Centers for Disease Control, National Center for Health Statistics (USA) ( Reference Kuczmarski, Ogden and Guo 34 ) .
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