Growth Charts and Percentiles

Is my baby too small for age

Is my baby too small for age

What does too small for age mean? There is no single measurement that defines whether a baby is too small. Clinicians compare a baby’s weight, length, and head circumference with standardized reference data for babies of the same sex and age. The result is commonly expressed as a percentile or a z-score. A percentile describes […]

Weight-for-Length Percentiles Explained

Weight-for-Length Percentiles Explained

What Weight-for-Length Measures Weight-for-length is a proportional growth indicator. It plots a baby’s body weight against their recumbent length, which is the length measured while lying down. The measurement is particularly useful during infancy because standing height cannot yet be obtained reliably and because weight alone does not show whether body mass is proportionate to […]

What baby percentiles mean

What baby percentiles mean

A percentile is a position on a distribution A percentile places a measurement within a reference population. If a baby’s weight is at the 25th percentile for age and sex, approximately 25% of comparable babies weigh less and approximately 75% weigh more. At the 75th percentile, the relationship is reversed. A baby at the 50th […]