| Value | Category | Cases | |
|---|---|---|---|
| 1 | I do not smoke | 3889 |
75.7%
|
| 2 | Yes | 513 |
10%
|
| 3 | No | 409 |
8%
|
| 4 | Do not know | 323 |
6.3%
|
| Sysmiss | 174 |