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Growth Estimation of Under-Five Children Using Statistical Models in Central Region of India
Pradyuman Verma1, Jang Bahadur Prasad1, Noel George1
1Department of Epidemiology and Biostatistics, KLE Academy of Higher Education & Research, Belgaum, 590010, Karnataka, India.
Insights
This study evaluated statistical models for child growth estimation in Indian children under five. The Cubic and Power models best estimated height and weight, considering birth weight categories and socio-demographic factors.
Area of Science:
- Pediatric Growth Monitoring
- Biostatistics
- Public Health Nutrition
Background:
- Child growth estimation is crucial for monitoring health and development.
- Understanding growth patterns in relation to birth weight is vital for early interventions.
- Socio-demographic factors significantly influence child growth trajectories.
Purpose of the Study:
- To assess the suitability of 11 statistical models for estimating child growth in under-five children.
- To generate estimated growth curves for mean height and mean weight based on birth-weight categories.
- To analyze growth patterns in the Central Region of India.
Main Methods:
- Utilized National Family Health Survey-4 (NFHS-4) data from India (n=75,645).
- Categorized under-five children into four birth-weight groups (<2000g, 2000-2499g, 2500-2999g, 3000+g).
- Estimated growth curves for mean height and mean weight by sex and birth-weight category using selected statistical models.
Main Results:
- Identified significant associations between child growth and seven socio-demographic factors (age, sex, birth order, BMI, mother's education, residence, wealth index).
- The Cubic Model and Power Model demonstrated the best fit for height and weight data across different birth-weight categories.
- Mean height and weight estimates with 95% Confidence Intervals were generated for boys and girls separately.
Conclusions:
- Seven socio-demographic factors were significantly linked to birth weight.
- Cubic and Power models are highly suitable for estimating child growth (mean height and weight) in relation to birth-weight categories for both sexes.
- The findings provide valuable data for child health monitoring and interventions in India.
Background And Aims:
To determine the suitability of 11 basic statistical models for estimating child-growth of under-five children and to bring-forth estimated growth curves for mean height & mean weight by their selected birth-weight categories for Central Region of India.
Methods:
The study used fourth round of National Family Health Survey-4 (NFHS-4) data of India, consisting of 75,645 under-five children, belonging to 3 Indian States - Chhattisgarh, Madhya Pradesh & Uttar Pradesh. The children of the Region were first divided into 4 sub categories according to their birth-weight: (i) < 2000 gm, (ii) 2000-2499 gm, (iii) 2500-2999 gm (iv) 3000+gm, growth curve for mean height and mean weight were estimated for two sexes.
Results:
The significant association of 7 socio-demographic factors studied, namely - age & sex of child, birth-order, BMI, mother's highest level of education, place of residence and wealth index. Further, Cubic Model and Power Model, demonstrated best-fit to height & weight data of under-five children, belonging to different birth-weight categories, for estimating growth of boys & girls separately. These models enabled us to estimate mean height and mean weight, with 95% CI, for boys and girls separately by different birth-weight categories.
Conclusions:
Study concluded that 7 socio-demographic factors were significantly associated with birth-weight. Further, Cubic Model and Power Model were most suitable for estimating child growth in terms of mean height & mean weight for boys and girls - considering specific birth-weight categories.
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