Standardized of Height, Weight and Body Mass Index (BMI) in Healthy 6-11-year-old Schoolgirls and Schoolboys,Yazd City 2010-2011

Evaluation of grow this particularly important in children. It has to use the standard data necessarily. Due to genetic difference sand patterns of people living in different areas, national or local needs are better to be considered rather than the international ones. The aim of this study was to determine the height, weight and BMI of the children6-11 years old in the city of Yazd. In this cross-sectional study,2592 student (6-11 years old)were selected by cluster sampling in 26 schools and all students in one class from each grade in the academic year2010-2011 in Yazd–Iran. Height, weight and body mass index of the children were measured. Using the SPSS curve, the height, weight and body mass index by age and sex were calculated and compared with the WHO and CDC standards. Height-for-age percentile curves of girls were below CDC standard features. The 5 and 15 percentiles of weight-for-age of male in most age groups were also below CDC data. The 95 and 97 percentiles of body mass index of male and female children aged over 10 years were higher than foreign standards. Due to the differences seen between the curves for height, weight and body mass index in Yazdian children and foreign standards, it is better to use the norms of this study for Yazdi children 6-11 years old.