WS/T 423-2022 in English
VALIDGrowth standard for children under 7 years of age
- Issued on:2022-09-19
- Implemented on:2023-03-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
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| Standard No: | WS/T 423-2022 |
| Document status: | VALID |
| Title in English: | Growth standard for children under 7 years of age |
| Title in Chinese: | 7岁以下儿童生长标准 |
| Language: | English |
| File Format: | Electronic (PDF) |
| Delivery: | Via email within 1~3 business days |
| Issued on: | 2022-09-19 |
| Implemented on: | 2023-03-01 |
| Superseding: |
WS 423-2013 Assessment for growth status of children under 5 years of age
|
| ICS Classification: | 11.020-Medical Sciences and health care facilities in general |
| Chinese Classification: | C63-Maternity and child hygiene, family planning technology |
| Professional Classification: | WS-Hygiene |
| Related Keywords: | growth standard
standard deviation standard deviationage-specific weight standard deviation obesity > +2sd > +2sd thinness growth standard deviation method standard update |
| Related Topics: | to grow
ws/t 7 child child standard Chang Zhun Centenarian The following can g Warning under 18s Taboo under the age of eighteen growth version Why children over 18 and under 18 No under 18s accepted |
本标准规定了7岁以下儿童生长水平与营养状况的评价指标和评价方法。
本标准适用于7岁以下儿童生长水平与营养状况的群体评价及个体评价。
Introduction
Key points of standard update and technical changes
| Update dimensions | 2013 version | 2022 version |
|---|---|---|
| Scope of application | Under 5 years old | Expanded to under 7 years old |
| New indicators | - | Head circumference evaluation (0-3 years old), BMI percentile |
| Evaluation method | Single standard deviation method | Percentile + standard deviation dual system |
| Data granularity | Appendix A/B | Added head circumference data for children aged 0-3 years (Table A.11-A.12) |
Analysis of core evaluation indicators
1. Growth level evaluation (percentile method)
After obtaining data using a length/height measuring instrument, the data were graded according to Table 1:
- P≥97: Superior (risk of overweight should be noted)
- P3-P97: Moderate (regular monitoring)
- P<3: Poor (specialist evaluation is recommended)
2. Nutritional status evaluation (standard deviation method)
Critical critical values:
| Evaluation results | BMI standard deviation | Age-specific weight standard deviation |
|---|---|---|
| Obesity | >+2SD | >+2SD |
| Thinness | <-2SD | <-2SD |
| Growth retardation | - | Height/height<-2SD |
Clinical implementation recommendations
- Measurement specifications: Measure height (lying position) for children under 2 years old and height (standing position) for children over 2 years old, using a calibrated class=instrument>Electronic weight scale
- Dynamic monitoring: It is recommended to record the growth curve continuously, and be vigilant when crossing the main percentile channels
- Abnormal handling: When <-3SD or >+3SD appears, endocrine and genetic metabolic diseases should be excluded
Background of standard formulation
Based on the survey data of 150,000 children in 10 provinces and cities across the country from 2015 to 2020, the LMS method was used to establish the curve, which better reflects the growth trend of contemporary children than the 2013 version. The addition of head circumference standards fills the gap in the evaluation of infant neurodevelopment.
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