Which statement correctly describes the origin and validation of the Fenton growth chart?

Which statement correctly describes the origin and validation of the Fenton growth chart?

• A. It is an update from Babson and Benda with validation from NICHD Network, CDC growth charts, intrauterine and postnatal growth data; data are cross-sectional.
• B. It was derived from WHO growth standards in preschool children.
• C. It uses data from a single hospital's postnatal growth data only.
• D. It is identical to the Lubchenco growth chart.

Answer: (C)

The key idea being tested is how the Fenton growth chart was created and validated. It was built by combining weight-for-gestational-age data from multiple large datasets and anchoring those postnatal preterm data to established intrauterine references, producing smoothed percentile curves across gestational ages. This means the chart reflects observations from several sources rather than coming from just one place, and it relies on cross-sectional data collected at different ages rather than following the same infants over time. The validation process involved comparing and aligning these curves with broader reference data networks and standard growth references to ensure they reasonably reflect observed population growth patterns. It is not derived from data in a single hospital, it is not based on WHO preschool standards, and it is not simply identical to Lubchenco’s chart, though Lubchenco’s work provided foundational context for growth references.

The key idea being tested is how the Fenton growth chart was created and validated. It was built by combining weight-for-gestational-age data from multiple large datasets and anchoring those postnatal preterm data to established intrauterine references, producing smoothed percentile curves across gestational ages. This means the chart reflects observations from several sources rather than coming from just one place, and it relies on cross-sectional data collected at different ages rather than following the same infants over time. The validation process involved comparing and aligning these curves with broader reference data networks and standard growth references to ensure they reasonably reflect observed population growth patterns. It is not derived from data in a single hospital, it is not based on WHO preschool standards, and it is not simply identical to Lubchenco’s chart, though Lubchenco’s work provided foundational context for growth references.