| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked | 2932 |
80.2%
|
| 2 | I did not smoke during the past year | 176 |
4.8%
|
| 3 | Yes | 340 |
9.3%
|
| 4 | No | 207 |
5.7%
|
| Sysmiss | 14 |