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[Growth in head circumference: parent-child correlation and secular trend]
1Abt. Entwicklungsdiagnostik, Universitäts-Kinderklinik Bonn.
Insights
Head circumference measurements in infants are vital for tracking brain development and detecting growth abnormalities. Parental head circumference showed correlations with infant measurements, but no secular trend was observed in head growth.
Area of Science:
- Pediatric growth and development
- Neurodevelopmental assessment
Context:
- Head circumference is a critical indicator of infant brain development.
- Abnormal head growth can signal conditions like malnutrition or hydrocephalus.
- The Bonn Longitudinal Study tracked 150 infants (preterm and full-term) from birth.
Purpose:
- To analyze head circumference growth patterns in infants.
- To investigate correlations between infant and parental head circumference.
- To assess secular trends in head circumference growth.
Summary:
- Analysis of 150 infants revealed correlations between maternal and infant head circumference (highest in mother-daughter pairs for full-term infants and mother-son pairs for preterm infants).
- No positive secular trend in head circumference was observed in the Bonn Study, contrasting with observed trends in height.
- Regular head circumference measurements are crucial for early detection of abnormal brain growth.
Impact:
- Provides normative data for infant head circumference growth.
- Highlights the importance of regular head circumference monitoring in pediatric care.
- Contributes to understanding genetic and environmental influences on head growth.
Abstract:
Head circumference is an important growth parameter; it is closely related to brain development in normal infants. Therefore regular meticulous measurements of head circumference can give diagnostic hints of abnormal brain growth, i. e., reduced growth as in severe malnutrition or accelerated as in hydrocephalus, for example. The results presented here are based on the Bonn Longitudinal Study on growth and development; 150 infants (65 preterm and 85 full-term) were measured regularly from birth. Head circumference of the parents was also measured. For the full term infants the highest correlation was found between mother and daughter (r = 0.75), in the preterm infants the highest correlation was seen between mother and son (r = 0.65). In the Bonn Longitudinal Study and in a recent additional Bonn Study no positive secular trend of head circumference was observed which agrees with results of others. Interestingly enough, growth of head circumference behaves completely differently from that of height in the Bonn Study, where a positive secular trend was observed.