Objectives: Access to updated and accurate standards for local populations is important for the interpretation of body measurements in neonates and may have an impact on the doctor's recommendations for monitoring early childhood development.Study aim: to present individual mean values for the most prevalent body measurements (i.e. birth body length (BBL), birth body weight (BBW) and birth head circumference (BHC)) in neonates and compare them to the duration of pregnancy.
Material and methods:The measurements (BBL, BBW and BHC) were collected and analyzed from over 27,000 neonates born in a single center. All women with single pregnancies with gestation ranging from 33 to 42 weeks were included in the study.
Results:Mean values and statistically significant standard deviation values from population standards of BBL, BBW, and BHC were evaluated for neonates that were born between the 33 rd and 42 nd week of gestation. Analysis was conducted for the lower limit (10 th percentile), average (50 th percentile) and upper limit (90 th percentile).
Conclusions:This was the first time in Polish literature when population standards were presented for three body measurements of neonates. With the size of the cohort, these standards can be successfully implemented into routine clinical practice, especially for screening children with body size deficits.