Which sources were used to validate the Fenton growth chart?

• A. NHANES data only
• B. Fenton's independent data
• C. NICHD network data; CDC growth charts; intrauterine data; postnatal data
• D. WHO growth charts only

Answer: (C)

Understanding how a preterm growth chart is validated requires looking at data from both fetal size and early postnatal growth, and checking it against multiple representative sources. The Fenton chart was validated by combining NICHD network data (providing postnatal measurements in preterm infants across gestational ages), CDC growth charts (a broad reference for postnatal growth in the general pediatric population), and the underlying fetal size data from intrauterine measurements as well as postnatal growth data. This mix ensures the chart reflects true fetal size by gestational age and how preterm infants grow after birth, while also staying anchored to a widely used postnatal reference.

Relying on a single source, such as NHANES data, or using WHO charts alone wouldn’t capture the specific preterm/postnatal growth patterns or align with a contemporary, diverse preterm dataset. Using the combination listed provides a robust validation across the relevant range.

So, the sources used to validate the Fenton growth chart are NICHD network data; CDC growth charts; intrauterine data; and postnatal data.