1, 2, 3 and 4 Further investigations also considered BMI an important marker in the relationship between blood pressure and central adiposity indicators.5 and 6 On the other hand, the accumulation of adipose tissue in the central region of the body has been considered as a better determinant for the development of high blood pressure than total adiposity.7

Currently, however, there is no consensus on the choice of anthropometric predictor of high blood pressure in this population. Anthropometric indicators such as BMI, waist circumference, triceps skinfold and, more recently, the waist-to-height ratio, have been investigated for validity in predicting the risk for high blood pressure in the pediatric population.3 and 8 Therefore, this study aimed check details to investigate the best anthropometric determinants of high blood pressure in children and adolescents. This cross-sectional epidemiological research was conducted in 2008 and 2009, after a pilot study. The sample was extracted from school children attending 5th to 8th grades distributed into five regionals administered by the Municipal selleck chemicals llc Secretariat of Education of Curitiba

(n = 8,140), and was selected by systematic sampling, in two stages: 1) Selection (draw) of one school in each regional; The sample size calculation (Epi-Info version 3.5.1) resulted from the sum of the samples calculated for each regional (n = 1,523), for which we considered: number of students enrolled in each regional; unknown prevalence (50%); level of confidence of 95% (95%CI); and sampling error of 5%. The evaluations were performed only on students who agreed to participate and who presented the informed consent signed by parents/guardians (n = 1,497). Out of these, 46 individuals were excluded 3-oxoacyl-(acyl-carrier-protein) reductase for the following reasons: 1) age different from 10 to 16 years; The final sample was composed of 1,441 children and adolescents, 655 boys and 786 girls. The sampling error in each regional, calculated a posteriori, ranged from 1.2 to 1.5, below the level established a priori (5%). The assessments were performed during the

school period, by trained evaluators and using calibrated equipment. The techniques to measure body mass and triceps skinfold were obtained according to international norms,9 considering valid the average of three measurements. Height was measured with a wall stadiometer (Wiso®, Brasil) with a resolution of 0.1 cm, and body mass was measured in digital scale, (Plenna®, Sport, Brazil) with a maximum capacity of 150 kg and a resolution of 100 grams. The assessed student wore only the school uniform, without coats or objects in the pockets. BMI (kg/m2) was used to classify students as having adequate weight and overweight.10 Data from children with low birth weight (1.2%; n = 18) were included in the adequate weight category.