Figure 1From: A nearly continuous measure of birth weight for gestational age using a United States national referenceSelect reference percentiles for birth weight at each gestational age from 22 to 44 completed weeks for all singleton infants: 10th, 50th, and 90th percentiles from our analysis of 6,690,717 births in the 1999–2000 US Natality datasets, compared with the corresponding percentiles published by Alexander et al. (1999) from 1994–96 US Natality data.Back to article page