| Value |
Category |
| 1 |
less than one week |
| 2 |
between 1 week and 1 month |
| 3 |
between 1 and 3 months |
| 4 |
more than 3 months |
| 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.