| Value |
Category |
| 1 |
On time (37-42 weeks) |
| 2 |
Before (22-37 weeks) |
| 3 |
After (42 or more weeks) |
| 8 |
dk |
| 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.