| Value | Category | Cases | |
|---|---|---|---|
| 1 | During pregnancy | 229 |
22.4%
|
| 2 | During delivery | 150 |
14.7%
|
| 3 | By breastfeeding | 643 |
62.9%
|
| 99 | 1 |
0.1%
|
|
| Sysmiss | 44038 |