Birthweight and Gestation

• Number of babies born low birthweight (less than 2500 grams): 320,869
• Percent born low birthweight: 8.07%
• Percent born very low birthweight: 1.40%
• Number of preterm births: 382,786
• Percent born preterm: 9.63%

Source: Births: Final Data for 2015, table 25[PDF - 1.9 MB]