During the growth and development of babies, whether their height and weight are standard is undoubtedly one of the most concerning issues for parents. Height and weight can help parents determine whether their baby's growth and development are normal, whether there are problems related to growth and development such as malnutrition, overweight, or obesity. Therefore, regular monitoring and scientific evaluation of height and weight are particularly important! Next, let's talk about how to evaluate the height and weight of young children.
What growth and development indicators are used for evaluation?
It is recommended to use three growth and development indicators: age-specific height, age-specific weight, and age-specific body mass index (BMI) for evaluation. Age specific body mass index (BMI) is usually used as a standard index to determine the weight or thinness of children.
Among them: BMI=weight (kg)/(square of height (m)).
Which scoring method should be used?
The scoring of height and weight usually includes two methods: Z-score and percentile. Currently, the Z-score method is widely used internationally, therefore, it is recommended to use the Z-score method.
The Z-score method, also known as the standard deviation (SD) ratio method, first determines a median value (0SD), and then evaluates based on the degree to which the calculated standard deviation deviates from the median value.
How to conduct evaluation?
It is recommended to comprehensively evaluate using two methods: "current measurement point evaluation" and "drawing growth and development curve evaluation". Below is a detailed list of the fluctuation range of height for male and female babies
Range of Height Fluctuations for Male Babies (cm) and Female Babies (cm) by Month (Year) Age
Newborn male 45.9-55.1 female 45.5-54.2
1 month male 49.7-59.5 female 49.0-58.1
2 months male 52.9-63.2 female 52.0-61.6
3 months male 55.8-66.4 female 54.6-64.5
4 months male 58.3-69.1 female 56.9-67.1
5 months male 60.5-71.3 female 58.9-69.3
6 months male 62.4-73.2 female 60.6-71.2
7 months male 64.1-74.8 female 62.2-72.9
8 months male 65.7-76.3 female 63.7-74.5
9 months male 67.0-77.6 female 65.0-75.9
10 months male 68.3-78.9 female 66.2-77.3
11 months male 69.6-80.2 female 67.5-78.7
12 months male 70.7-81.5 female 68.6-80.0
18 months male 76.3-88.5 female 74.8-87.1
The baby's height is roughly within the range mentioned above, so there is generally no problem. However, if the baby grows too quickly, there may be a risk of calcium deficiency. If there is a significant difference, it is recommended to go for a check-up. Children generally have no problem as long as they have balanced nutrition! Can parents operate the height and weight evaluation of young children? I hope it can help you.
