growth percentile
Statistical ranking of fetal size compared to reference population at same gestational age.
Full Definition
Growth percentile refers to the statistical ranking of fetal biometric measurements or estimated fetal weight compared to a reference population of the same gestational age, expressed as a percentage from 0-100. For example, a fetus at the 50th percentile is average size, while one at the 10th percentile is smaller than 90% of fetuses at that gestational age. Percentiles below the 10th are often considered small for gestational age (SGA), while those above the 90th percentile may be considered large for gestational age (LGA). Growth percentiles are essential for identifying fetal growth restriction, macrosomia, and for serial monitoring of fetal growth velocity throughout pregnancy.
Usage
Usage note: Use ordinal numbers (10th, 90th) with 'percentile'; avoid 'percentile' with just numbers.
In Context
- "The estimated fetal weight is 1,850 grams, which corresponds to the 15th percentile for 32 weeks gestation." — Ultrasound report
- "Serial growth scans showed a decline from the 45th to the 8th percentile, concerning for fetal growth restriction." — High-risk pregnancy monitoring