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Comparative length and weight growth in Khartoum infants
G A Harrison1, G Brush, F Y Zumrawi
1Institute of Biological Anthropology, University of Oxford, UK.
Insights
Khartoum infant growth shows significant catch-up and catch-down in length and weight during the first year. These processes, influenced by birth dimensions, suggest an underlying growth pulse affecting early infant development.
Area of Science:
- Pediatrics
- Human Growth and Development
- Biostatistics
Background:
- Infant growth patterns are crucial for assessing overall health and development.
- Understanding the factors influencing postnatal growth is essential for identifying potential developmental deviations.
- Early childhood growth trajectories can have long-term health implications.
Purpose of the Study:
- To analyze the correlation between birth dimensions and first-year postnatal growth (length and weight) in Khartoum infants.
- To investigate the role of catch-up/catch-down growth processes in early infant development.
- To identify potential growth pulses influencing infant physical development.
Main Methods:
- Correlation analysis of birth dimensions with monthly growth intervals and 11-month increments.
- Fitting individual growth curves to extract data for correlational analysis.
- Statistical analysis of supine length and body weight data from Khartoum infants.
Main Results:
- First-year length growth is predominantly characterized by catch-up/catch-down processes.
- Weight growth is similarly affected but to a lesser extent and for a shorter duration.
- A growth pulse in both length and weight was identified, contributing to catch-up growth.
Conclusions:
- Postnatal infant growth in the first year is significantly influenced by catch-up/catch-down mechanisms.
- Birth dimensions play a role in shaping early infant growth trajectories.
- A distinct growth pulse appears to drive catch-up growth in both length and weight during infancy.
Abstract:
First-year postnatal growth of supine length and body weight of a group of Khartoum infants is analysed in terms of the correlation coefficients between birth dimension on the one hand and (1) subsequent distance growth at monthly intervals and (2) the 11-monthly increments on the other. It is shown that the whole of the first-year length growth is dominated by catch-up/catch-down processes which must equally affect the infants. Weight growth is similarly affected, but to a lesser degree and for a shorter time. After 6 months of age some of the influences that determined prenatal weight growth reappear. Using data extracted from fitting growth curves to each individual the correlational analysis suggests a growth pulse in both length and weight, which is responsible for distance catch-up.