Physical crowd-index or BMI is simple calculation based on height and weight for estimate how much fat is in the body of people. You commonly use it for control the stressful amount of body fat what helps to stop healthy risks because of obesity. For children and youngsters the method is a bit another than for adults.
More natural sound to say that adults have fixed ranges for BMI during pediatric values deal about curves on charts according to age and sex. Here the reason: during child grow its height, weight and body fat alter very quickly rather to adults whose height stays almost the same whole life.
BMI for Children and Teens: Percentiles and Growth Charts
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Because of those fast changes you must consider the age and sex of child or teenager during BMI-calculation. Rather than at adults where you only look at the pure number here nepras control percentiles. They show where the BMI of child locates compared to other kids of same sex.
For instance 84th percentile want to say that the BMI surpasses that of around 84 % from other girls of same age in the data. Like this you can well estimate do the BMI is healthy for that child.
Pediatric BMI-calculator gives not only the BMI self but also its percentile and category for children of 2 until 19 years. Some versions estimate BMI for 5 until 19 years. Those programs count also percentiles and z-score for height, weight and physical crowd-index.
Results you can see on growth curves with explanations. By means of them you lays the BMI-percentile according to age on the chart what points weight status as too weak normal overweight or obese.
Particular groups are: overweight surpasses +1 SD obesity surpasses +2 SD. Too weak are under -2 SD severe weakness under -3 SD. Charts range according to groups.
For girls are curvojs for BMI-percentiles according to age of birth until 2 years 2 until 5 years and birth until 5 years with z-points. Samon count for boys. The curves of 85th percentile in 2000 CDC-charts reach 25 kg./m² in 16,5 until 17 years.
