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Head circumference reference data: birth to 18 years
Insights
New reference data for head circumference in US children aged 0-18 years show higher values for older boys and girls compared to existing data. These smoother, more reliable measurements aid in child development screening.
Area of Science:
- Pediatrics
- Anthropometry
- Growth Monitoring
Background:
- Accurate reference data are crucial for monitoring child growth and development.
- Existing head circumference data may not fully represent current pediatric populations.
- Serial measurements within a single study enhance data reliability.
Purpose of the Study:
- To establish updated, reliable reference data for head circumference in white US children from birth to 18 years.
- To compare new data with existing reference standards.
- To provide smoother, age-appropriate percentile data for clinical screening.
Main Methods:
- Utilized serial measurements from a single study of 888 white US children.
- Collected head circumference data from birth to 18 years of age.
- Calculated percentiles for 6-month increments from birth to 6 years.
Main Results:
- New reference data show minimal differences from existing data for ages 0-36 months.
- Data indicate higher head circumference values (approx. 0.5 cm) for boys at older ages and slightly higher for girls.
- The generated reference data exhibit smoother progression across age compared to current standards.
Conclusions:
- The updated head circumference reference data provide a more accurate standard for pediatric assessment.
- These findings suggest a potential need to revise current growth charts for older children.
- Smoother, reliable data facilitate improved screening and evaluation of head growth in children.
Abstract:
Highly reliable data from a sample of 888 white US children, measured serially in a single study, have been used to provide reference data for head circumference from birth to 18 years of age. The present data differ little from those already available for the age range from birth to 36 months of age, but they are considerably higher (about 0.5 cm) at older ages for boys and tend to be slightly higher for girls. These new reference data are smoother across age than those used currently for screening and evaluation. Percentiles for 6-month increments from birth to 6 years have been provided.