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Analyzing Children's Weight Growth Variations and Associated Factors in Ethiopia, India, Peru, and Vietnam: Using
Alemayehu Siffir Argawu1, B Muniswamy1, B Punyavathi1
1Department of Statistics, College of Science and Technology, Andhra University, India.
Insights
Children's weight growth varies significantly by country, sex, and location. Factors like parental education and access to resources impact this growth, necessitating monitoring for future health interventions.
Area of Science:
- Pediatric Growth and Development
- Longitudinal Cohort Studies
- Biostatistics and Statistical Modeling
Background:
- Childhood growth is a critical determinant of long-term health outcomes.
- Accurate modeling of weight growth requires accounting for repeated measures within subjects.
- Understanding variations in child weight trajectories is essential for public health.
Purpose of the Study:
- To analyze variations in children's weight growth across Ethiopia, India, Peru, and Vietnam.
- To identify factors associated with longitudinal weight changes in children.
- To apply a fractional polynomial mixed-effects model for robust analysis.
Main Methods:
- Utilized longitudinal data from the Young Lives Cohort Study (2002-2016).
- Included 7,140 children aged 1 to 15 years.
- Employed a fractional polynomial mixed-effects model for data analysis.
Main Results:
- Ethiopian, Peruvian, and Vietnamese children exhibited higher average body weights than Indian children.
- Girls and rural children had significantly lower average body weights compared to boys and urban children, respectively.
- Weight change rates differed by country and residence, with urban children showing higher weight gain.
Conclusions:
- Children's longitudinal weight growth is influenced by country, sex, residence, parental education, household factors, and access to utilities.
- The World Health Organization and national health ministries should monitor child weight growth and associated determinants.
- This monitoring is crucial for effective planning of future public health interventions.
Background:
Children's growth is increasingly considered a key mediator of later life outcomes. When examining weight growth, the correlation between repeated observations on the same subject must be regarded as well-modelled. This study aimed to analyze children's weight growth variations and associated factors in Ethiopia, India, Peru, and Vietnam using a fractional polynomial mixed-effects model.
Methods:
This study used longitudinal data from the Young Lives Cohort Study conducted from 2002 to 2016 in Ethiopia, India, Peru, and Vietnam. The study included 7,140 children of 1 to 15 years old A fractional polynomial mixed-effects model was used to analyze the data.
Results:
Ethiopian, Peruvian, and Vietnamese children had significantly higher average body weights than children in India (1.426, P<0.001; 1.992, P<0.001; 1.334, P<0.001, respectively). Girl children's average body weight was significantly 0.15 times less than that of boys (-0.148; P=0.027). The average weight of rural children was significantly 0.671 times less than that of urban children (0.671, P<0.001). Children from Peru and Vietnam had higher rates of weight change than those from India. However, the rate of weight change was lower in Ethiopian children than in Indian children. Children from urban areas had a significantly higher rate of weight gain than those from rural areas.
Conclusion:
Country, sex, residence, parental education, household size, wealth, good drinking water, and reliable power affected children's longitudinal weight growth. Therefore, WHO and the nation's health ministry should monitor children's weight growth status and these associated factors to plan future action.
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