| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked | 1557 |
83.2%
|
| 2 | I did not smoke during the past 12 months | 136 |
7.3%
|
| 3 | Yes | 146 |
7.8%
|
| 4 | No | 32 |
1.7%
|
| Sysmiss | 5 |