| Value | Category | Cases | |
|---|---|---|---|
| 1 | Yes | 514 |
76.7%
|
| 2 | No | 55 |
8.2%
|
| 3 | Not applicable (HIV negative prior to pregnancy) | 0 |
0%
|
| 4 | Unknown | 101 |
15.1%
|
| Sysmiss | 1881 |