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[Methodical and methodologic aspects of studies and evaluation of development in newborns and infants]
1Zakład Biologii Rozwoju Człowieka Instytut Antropologii Uniwersytetu im. Adama Mickiewicza w Poznaniu.
Insights
This study highlights the importance of using absolute age for assessing infant development, finding strong links between fetal age and newborn body mass. Percentile charts are provided for evaluating newborns aged 32-43 weeks.
Area of Science:
- Neonatal and developmental pediatrics
- Human growth and development
- Biostatistics and data analysis
Abstract:
Relations between fetal age, age after birth (chronological) and absolute age are presented. The need to use absolute age instead of obstetric age categories, while assessing the developmental state of neonates and infants is shown. An analysis of data on 2,237 male newborns and 2,423 female newborns revealed relationships between body mass and fetal age. On the basis of regression analysis, various developmental tendencies in body mass of neonates are presented. Percentile charts of body mass applicable in assessment of developmental state and age of newborns at the age of 32-43 weeks are included as an appendix.