How to calculate the child's height and weight?

The comparison table of height and weight between 1 and 18 years old is as follows:

1. The future height of a child is determined by the bone age, not the age of the child, so it is best to refer to the bone age rather than the age for height and weight.

2. There are many and serious children with early developmental precocity, and many children's bone age is out of sync with their age, which means they are different.

For example, a 9-year-old girl may be 11 years old, so your height control should be 146 cm 36 kg, and if a boy is 1 years old and 9 years old, the control should be 135 cm 3 kg. Bone age over one year old and over one year old are abnormal symptoms, so you can go to the hospital for examination.

3. It is suggested that the bone age should be measured once a year, and once every six months after the onset of youth, so as to predict the future height, so as to know whether there is any problem with the child's height and whether it needs encouragement. Parents should understand that there is a time limit for a child to grow taller. Once the child's epiphyseal line is closed, the child loses the opportunity to grow taller. Generally speaking, women are 13 years old and men are 15 years old, and there is basically not much length.

4. It is suggested that Chinese standard 5 is more scientific, reasonable and accurate for bone age measurement. This is the national standard that China has replaced chn method, the old standard of China in 1992, and is truly in line with international standards. TW2 and TW3 are British standards, while GP method is American standards. The difference is that foreign children are used for statistical samples. Generally speaking, it takes more than fifteen minutes for professional statistics to measure bone age.

Extended information:

Standard weight measurement method:

I. WHO calculation method

Male: (height cm-8) × 7 = standard weight

Female: (height cm-7) × 6 = standard weight <

the standard weight of plus or minus 1% ~ 2% is overweight or underweight.

A standard weight of plus or minus 2% or more is obesity or underweight.

overweight calculation formula

overweight% = [(actual weight-ideal weight)/(ideal weight) ]×1%.

Second, different age algorithms

1. Standard weight method

Standard weight (kg) = age x 8+8 (7-16 years old).