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Height Velocity in Apparently Healthy North Indian School Children
Aashima Dabas1, Rajesh Khadgawat1, Monita Gahlot2
1Department of Endocrinology and Metabolism, All India Institute of Medical Sciences, New Delhi, India.
Insights
This study establishes normal height velocity (HV) data for North Indian children, crucial for assessing linear growth. Findings reveal peak height velocity (PHV) differences between sexes and a secular trend in achieving PHV.
Area of Science:
- Pediatrics
- Human Growth and Development
- Anthropometry
Background:
- Linear growth assessment relies on serial anthropometric data or height velocity (HV).
- Normative data for growth velocity in North Indian children is lacking.
- Establishing regional growth standards is essential for accurate pediatric assessment.
Purpose of the Study:
- To establish normative height velocity (HV) data in apparently healthy North Indian children.
- To provide updated growth velocity standards for pediatricians and researchers in the region.
- To investigate the relationship between HV, puberty, and parental height.
Main Methods:
- Prospective longitudinal study involving 7710 healthy children aged 3-17 years in Delhi.
- Height measurements taken at baseline and 12 months.
- Pubertal examination conducted on a subset of participants.
Main Results:
- Data on HV and puberty available for 5635 and 1553 participants, respectively.
- Mean peak height velocity (PHV) was 7.82 cm/year in boys (12-12.9 years) and 6.63 cm/year in girls (10-10.9 years).
- HV correlated with parental height in prepubertal boys, girls, and pubertal boys.
Conclusions:
- The study provides essential normative height velocity data for North Indian children.
- A secular trend in achieving peak height velocity (PHV) was observed in both boys and girls.
- These findings aid in the accurate monitoring of child growth and development.
Objective:
Linear growth is best estimated by serial anthropometric data or height velocity (HV). In the absence of recent data on growth velocity, we undertook to establish normative data in apparently healthy North Indian children.
Materials And Methods:
Prospective longitudinal study in a representative sample of 7710 apparently healthy children, aged 3-17 years from different regions of Delhi. Height was measured at baseline and at 12 months while pubertal examination was performed at baseline in a subset of children.
Results:
The data on HV and puberty were available in 5635 participants (73.08%; 2341 boys and 3294 girls) and 1553 participants (622 boys; and 931 girls), respectively. The mean peak height velocity (PHV) was 7.82 ± 2.60 cm in boys seen at 12-12.9 years and 6.63 ± 1.81 cm in girls at 10-10.9 years Although late maturing boys had a greater HV than early or normal maturers, it did not vary with the age of pubertal maturation in girls. HV correlated with parental height in prepubertal boys, girls, and pubertal boys (P < 0.01) while no correlation was seen in girls.
Conclusions:
The study presents normal height velocities in North Indian children. A secular trend was observed in achieving PHV in both boys and girls.
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