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Development of LMS and Z Score Growth References for Egyptian Children From Birth Up to 5 Years
Ali M El Shafie1, Fady M El-Gendy1, Dalia M Allahony1
1Department of Pediatrics, Faculty of Medicine, Menoufia University, Shebin El-Kom, Egypt.
Insights
Egyptian children now have growth references using Lambda-Mu-Sigma (LMS) and Z score methods for assessing nutritional status. These new references align with WHO standards, aiding clinical care and research.
Area of Science:
- Pediatric Nutrition
- Growth Monitoring
- Biostatistics
Background:
- Lambda-Mu-Sigma (LMS) and Z score methods are crucial for evaluating child growth and nutritional status.
- Egypt currently lacks specific growth assessment tools for preschool children.
- Establishing localized references is vital for accurate health monitoring.
Purpose of the Study:
- To develop Lambda-Mu-Sigma (LMS) and Z score growth references for Egyptian children aged 0-5 years.
- To provide tools for assessing growth and nutritional status in this population.
- To facilitate accurate health assessments and comparisons.
Main Methods:
- A cross-sectional study included 27,537 Egyptian children (birth to 5 years).
- Data collected on weight, height, and BMI to create LMS and Z score references.
- Exclusion criteria ensured a healthy study population, free from chronic diseases or developmental issues.
Main Results:
- LMS and Z score references for weight-for-age, height-for-age, weight-for-height, and BMI-for-age were generated for both sexes.
- No statistically significant differences were found between the Egyptian and WHO reference charts.
- The study provides comprehensive data for growth assessment.
Conclusions:
- This study introduces the first Z score-based growth references for Egyptian children (0-5 years).
- These references are valuable for clinical practice, nutritional status assessment, and research.
- The findings enable comparisons with international growth standards.
Abstract:
Background: The Lambda-Mu-Sigma (LMS) and Z score methods are important for assessment of growth and nutritional status. In Egypt, there is a lack of this tool for monitoring growth in preschool children. Objective: To develop LMS and Z score growth references for assessment of growth and nutritional status for Egyptian children from birth up to 5 years. Methods: A total of 27,537 children [13,888 boys (50.4%) and 13,649 girls (49.6%)] from birth up to 5 years were included in a multistage cross sectional randomized study from different Egyptian geographic districts to create LMS and Z score references for weight, length/height, and body mass index corresponding to age in addition to weight for length/height. Healthy term infants and children, exclusive breast feeding for at least 4 months and not suffering from any chronic diseases were included in this study. Children with dysmorphic features, preterm infants, admitted in neonatal or pediatric intensive care units and having any chronic diseases (hematological, cardiac, hepatic, and renal) were excluded. In addition any health condition that affects child growth including nutritional disorders was also excluded. Un-paired t-test was calculated to compare the means of weight for age, length/height for age, weight for length/height, and BMI for-age z scores of the Egyptian and WHO reference values. Results: Through detailed tables and graphs, LMS and Z scores for weight for age, length/height for age, weight for length/height, and BMI for age of both sexes were represented. Our findings showed no statistically significant difference between reference charts of WHO and Egyptian Z score charts (P > 0.05). Conclusion: This study provides the first reference for Egyptian children from birth up to 5 years based on Z score tool for assessment the growth and nutritional status in various clinical conditions and research, also allows comparison with references of other countries.
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