TABLE 3.
Example of different scenarios for 2 ultrasounds obtained between 28–32 weeks of gestation by self-identified maternal race/ethnicity
| Non-Hispanic white | |||
| 28 wk EFW | 32 wk EFW | EFW percentile at 32 wk | Velocity percentile from 28–32 wk |
| 1354 | 1960 | 50th | 5th |
| 1202 | 1960 | 50th | 50th |
| 1067 | 1960 | 50th | 95th |
| Non-Hispanic black | |||
| 28 wk EFW | 32 wk EFW | EFW percentile at 32 wk | Velocity percentile from 28–32 wk |
| 1292 | 1837 | 50th | 5th |
| 1134 | 1837 | 50th | 50th |
| 996 | 1837 | 50th | 95th |
| Hispanic | |||
| 28 wk EFW | 32 wk EFW | EFW percentile at 32 wk | Velocity percentile from 28–32 wk |
| 1317 | 1878 | 50th | 5th |
| 1150 | 1878 | 50th | 50th |
| 1005 | 1878 | 50th | 95th |
| Asian and Pacific Islander | |||
| 28 wk EFW | 32 wk EFW | EFW percentile at 32 wk | Velocity percentile from 28–32 wk |
| 1267 | 1830 | 50th | 5th |
| 1132 | 1830 | 50th | 50th |
| 1011 | 1830 | 50th | 95th |
EFW, estimated fetal weight.