| Value | Category |
|---|---|
| -999 | No response |
| -888 | Do not know |
| 1 | He was born dead |
| 2 | He died a few minutes after delivery |
| 3 | He died within the first week after delivery |
| 4 | He died between the first and fourth week of delivery |
| 5 | He died after the fourth week of delivery |
| Sysmiss |