| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked | 2160 |
81.5%
|
| 2 | I did not smoke during the past year | 240 |
9.1%
|
| 3 | Yes | 201 |
7.6%
|
| 4 | No | 48 |
1.8%
|
| Sysmiss | 17 |