| Value |
Category |
| 1 |
First 3 months of pregnancy |
| 2 |
3-6 months of pregnancy |
| 3 |
6 or more months of pregnancy |
| 8 |
DK |
| 9 |
Missing |
| Sysmiss |
|
Warning: these figures indicate the number of cases found in the data file. They cannot be interpreted as summary statistics of the population of interest.