Characteristics of five labour and delivery sites within the health system, with approximate delivery volumes and proportion of black patients delivering at each site
| Site | Description | Delivery volume per year | % Black patients |
| 1 | Urban, academic | 4000 | 60 |
| 2 | Urban, academic | 5100 | 25 |
| 3 | Rural, community | 4200 | 7 |
| 4 | Suburban, community | 3200 | 10 |
| 5 | Suburban, community | 2200 | 10 |