| Value | Category | Cases | |
|---|---|---|---|
| 1 | I did not smoke cigarettes over the past 30 days (month) | 1788 |
90.4%
|
| 2 | No usual brand | 131 |
6.6%
|
| 3 | Derby | 0 |
0%
|
| 4 | Free | 4 |
0.2%
|
| 5 | Marlboro | 1 |
0.1%
|
| 6 | Others | 0 |
0%
|
| 7 | 48 |
2.4%
|
|
| 8 | 6 |
0.3%
|
|
| Sysmiss | 41 |