Survey items concerning symptoms of dependence
| 1. Has the subject ever tried unsuccessfully to quit? |
| 2. Do you smoke now because it is really hard to quit? |
| 3. Have you ever felt like you were addicted to tobacco? |
| 4. Do you ever have strong cravings to smoke?1-150 |
| 5. Have you ever felt like you really needed a cigarette?1-150 |
| 6. Is it hard to keep from smoking in places where you are not supposed to, like school? |
| When you tried to stop smoking . . . (or, when you haven't used tobacco for a while . . .) |
| 7. did you find it hard to concentrate because you couldn't smoke? |
| 8. did you feel more irritable because you couldn't smoke? |
| 9. did you feel a strong need or urge to smoke? |
| 10. did you feel nervous, restless or anxious because you couldn't smoke? |
| 11. did you feel sad, blue, or depressed because you couldn't smoke? |
↵1-150 These items were not used as criteria for dependence because of lower specificity.