| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked | 1802 |
73.2%
|
| 2 | I did not smoke during the past 12 months | 281 |
11.4%
|
| 3 | Yes | 252 |
10.2%
|
| 4 | No | 127 |
5.2%
|
| Sysmiss | 15 |