Volume 36 Issue 7
Jul.  2023
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Growth Standard for Children Under 7 Years of Age[J]. Biomedical and Environmental Sciences, 2023, 36(7): 663-664. doi: 10.3967/bes2023.096
Citation: Growth Standard for Children Under 7 Years of Age[J]. Biomedical and Environmental Sciences, 2023, 36(7): 663-664. doi: 10.3967/bes2023.096

Growth Standard for Children Under 7 Years of Age

doi: 10.3967/bes2023.096
Funds:  National Health Standard of the People’s Republic of China (WS/T 423—2022).
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Growth Standard for Children Under 7 Years of Age

doi: 10.3967/bes2023.096
Funds:  National Health Standard of the People’s Republic of China (WS/T 423—2022).
Growth Standard for Children Under 7 Years of Age[J]. Biomedical and Environmental Sciences, 2023, 36(7): 663-664. doi: 10.3967/bes2023.096
Citation: Growth Standard for Children Under 7 Years of Age[J]. Biomedical and Environmental Sciences, 2023, 36(7): 663-664. doi: 10.3967/bes2023.096
  • This standard specifies the evaluation indicators and methods for the growth level and nutritional status of children under 7 years of age.

    This standard is applicable to the group and individual evaluation of the growth level and nutritional status of children under 7 years of age.

  • The following documents constitute the essential provisions of this standard through the normative references in the text. For the references dated, only their dated versions are applies to this standard; for the references undated, their latest versions, including all amendments, are applicable to this standard.

  • The following terms and definitions apply to this standard.

  • Children between birth and under 7 years of age (< 84 months of age).

  • Total weight of the human body.

  • Length from the top of the head to the heel in the horizontal position.

  • Vertical height from the top of the head to the bottom of the foot in the standing position.

  • The circumference at the upper edge of the right eyebrow arch passing through the highest point of the occipital ridge.

  • An index for calculating weight for height, under the following Formula (1):

    $$ {\rm{BMI}} =\dfrac{ {\rm{Weight}} \; ({\rm{kg}})} {[{\rm{Height}}\; ({\rm{m}})]^2} $$ (1)
  • The growth level of children under 7 years old was evaluated according to Table 1 in Appendix A.

    Percentile methodEvaluation indicator
    Weight for ageLength/height for ageWeight for length/heightBMI for ageHead circumferenceforage
    P97UpperUpperUpperUpperUpper
    P75 ≤ • < P97Above averageAbove averageAbove averageAbove averageAbove average
    P25 ≤ • < P75AverageAverageAverageAverageAverage
    P3 ≤ • < P25Below averageBelow averageBelow averageBelow averageBelow average
    < P3LowerLowerLowerLowerLower

    Table 1.  Percentile evaluation method for growth level of children

  • The growth level of children under 7 years old was evaluated according to Table 2 in Appendix B.

    Standard deviation methodEvaluation indicator
    Weight for ageLength/height for ageWeight for length/heightBMI for ageHead circumference for age
    ≥ +2 SDUpperUpperUpperUpperUpper
    +1 SD ≤ • < +2 SDAbove averageAbove averageAbove averageAbove averageAbove average
    −1 SD ≤ • < +1 SDAverageAverageAverageAverageAverage
    −2 SD ≤ • < −1 SDBelow averageBelow averageBelow averageBelow averageBelow average
    < −2 SDLowerLowerLowerLowerLower

    Table 2.  Standard deviation evaluation method for growth level of children

  • The nutritional status of children under 7 years old was evaluated according to Table 3 in Appendix B.

    Standard deviation methodEvaluation indicator
    Weight for ageLength/height for ageWeight for length/heightBMI for age
    ≥ +3 SDSevere obesitySevere obesity
    +2 SD ≤ • < +3 SDObesityObesity
    +1 SD ≤ • < +2 SDOverweightOverweight
    −1 SD ≤ • < +1 SD
    −2 SD ≤ • < −1 SD
    −3 SD ≤ • < −2 SDLow weightSevere growth retardationSlimSlim
    < −3 SDSevere low weightSevere growth retardationSevere wastingSevere wasting

    Table 3.  Standard deviation evaluation method for nutritional status of children

  • Weight, length, height, and head circumference are measured in accordance with WS/T 424.

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