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Growth pattern in 7-12 years old Arak children (central Iran) in comparison with other ethnic subgroups of Iran
Parvin-Dokht Bayat1, Mozafar Khazaei, Rostam Ghorbani
1Department of Anatomy, Arak University of Medical Sciences, Arak, Iran.
Insights
This study on Iranian children aged 7-12 found males were generally taller and heavier than females. Their Body Mass Index (BMI) fell between the 25th and 50th percentiles of CDC growth charts, highlighting a need for ethnic-specific growth standards.
Area of Science:
- Pediatrics
- Human Growth and Development
- Anthropometry
Background:
- Childhood growth is a key health indicator, influenced by genetics and environment.
- National growth standards vary, and data for Iran is limited.
- Socioeconomic factors impact growth patterns.
Purpose of the Study:
- To establish growth patterns for children aged 7-12 in Arak, Iran.
- To compare anthropometric data (height, weight, BMI) between sexes.
- To evaluate BMI against international reference standards.
Main Methods:
- Anthropometric measurements (height, weight, BMI) collected from 7-12 year old children in Arak.
- Paired sample t-tests used to compare sex differences.
- Independent sample t-tests compared mean BMI to CDC 2000 growth charts.
Main Results:
- Males were significantly taller and heavier than females at most ages (P < 0.01).
- Exceptions noted for length at age 10 and weight at age 12.
- Mean BMI percentiles ranged between the 25th and 50th, falling below CDC references.
Conclusions:
- Findings suggest socioeconomic influences on growth in Iranian children.
- There is a critical need for ethnic-specific growth charts in Iran.
- Developing tailored BMI cut-off points for underweight, overweight, and obesity is essential for Iranian ethnic subgroups.
Background:
growth is a remarkable index of health and can be influenced by genetic and environment conditions. The pattern of growth is unique for every nation and worldwide studies have demonstrated separate national standards. In the case of Iran, there is not enough information in this field.
Methods:
This study was undertaken on 7-12 years old children from Arak. The data for each individual such as age, height, weight and body mass index (BMI) were recorded. Differences in the data between two sexes were tested by means of the paired sample t- test and the mean BMI was compared with sex- and age-specific reference values from the National Center for Health Statistics of the Centers for Disease Control (CDC) 2000 growth chart using independent sample t-tests. Levels of P < 0.05, P < 0.01 and P < 0.001 were recorded as significant.
Results:
In this study, males were significantly taller and heavier than females at the same age (P < or = 0.01) except for length at age 10 and weight at age 12. The BMI curves were between 50th and 25th percentiles of CDC.
Conclusions:
The present study shows the effect of socioeconomic background that had been also considered in other studies in Iran. There is a need for ethnic specific growth charts and BMI cut-off points for underweight, overweight and obesity in children of each ethnic subgroup of Iranian population.
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