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[Growth dynamics in the first six years of life in respect to the birth weight]
E Małecka-Tendera1, M Nordyńska-Sobczak, K Klimek
1mtendera katowice.computerland.pl
Insights
Birth weight impacts childhood growth dynamics. Low birth weight girls show accelerated growth early, while boys exhibit faster linear growth later, aiding catch-up growth.
Area of Science:
- Pediatric Growth and Development
- Human Biology
- Child Health Research
Context:
- Understanding early childhood growth is crucial for long-term health outcomes.
- Birth weight is a significant determinant of infant development.
- This study investigates growth patterns in the first six years of life.
Purpose:
- To analyze growth dynamics in girls and boys up to six years of age.
- To determine the influence of birth weight on growth trajectories.
- To identify potential catch-up growth mechanisms in low birth weight children.
Summary:
- Growth dynamics were assessed in 437 children (230 girls, 207 boys) across three birth weight categories (<2500g, 2501-3500g, >3500g).
- Low birth weight girls demonstrated accelerated body mass accretion from birth to 2 years and peak linear growth velocity from 2 to 4 years.
- Low birth weight boys showed peak linear growth velocity from 2 to 4 years, with no significant correlation found between birth weight and body mass increase dynamics.
Impact:
- Findings suggest that enhanced linear growth velocity between 2 and 4 years may facilitate catch-up growth in children with low birth weight who are short at 2 years.
- Provides insights into sex-specific growth patterns related to birth weight.
- Informs pediatricians and parents about potential growth trajectories and interventions for low birth weight infants.
Abstract:
The aim of the study was to examine growth dynamics in girls and boys during the first six years of life and to establish how and to what extend it can be modified by their birth weight. The study was carried out in 437 children (230 girls and 207 boys). Growth dynamics during first two years, between 2 and 4 and 4 and 6 years of life was established and compared between the groups of children with birth weight below 2500 g, 2501-3500 g and above 3500 g. In girls with lowest birth weight highest dynamics of the body mass accretion was found between birth and 2 years of life. Their linear growth velocity was highest between 2 and 4 years of life. In boys no relation of the birth weight and dynamics of body mass increase was found. However, in boys with lowest birth weight linear growth velocity was highest between 2 and 4 years of life. It is concluded that high growth velocity between the second and fourth year of life can be beneficial for the "catch-up" growth in children with low birth weight who remain short at the end of the 2nd year of life.
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