| Value | Category |
|---|---|
| 1 | I don't smoke tobacco |
| 2 | I never feel a strong desire to smoke again after smoking tobacco |
| 3 | Within 60 minutes |
| 4 | 1 to 2 hours |
| 5 | More than 2 hours to 4 hours |
| 6 | More than 4 hours but less than one full day |
| 7 | 1 to 3 days |
| 8 | 4 days or more |
| Sysmiss |