| Value | Category | Cases | |
|---|---|---|---|
| 1 | Nictoine gum | 6 |
3.2%
|
| 2 | Nicotine patches | 5 |
2.7%
|
| 3 | Electronic cigarette | 2 |
1.1%
|
| 4 | 163 |
88.1%
|
|
| 77 | Other/nothing | 9 |
4.9%
|
| Sysmiss | 369 |