| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked | 2193 |
88.6%
|
| 2 | I stopped smoking | 147 |
5.9%
|
| 3 | Yes | 124 |
5%
|
| 4 | No | 10 |
0.4%
|
| Sysmiss | 8 |