| Value |
Category |
| 1 |
no problem |
| 2 |
mild problem |
| 3 |
moderate problem |
| 4 |
severe problem |
| 5 |
extreeme problem |
| 9 |
na-never tried |
| 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.
