| Value |
Category |
| 1 |
rarely (1 – 2 days) |
| 2 |
sometimes (3 – 10 days) |
| 3 |
often (more than 10 days) |
| 98 |
dk/na |
| 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.