| Value | Category | Cases | |
|---|---|---|---|
| 1 | None | 510 |
23.8%
|
| 2 | 1 or 2 times breathed in smoke | 254 |
11.8%
|
| 3 | 1 cigarette | 132 |
6.2%
|
| 4 | 2-5 cigarettes | 290 |
13.5%
|
| 5 | 6 - 15 cigarettes | 179 |
8.3%
|
| 6 | 16 - 25 cigarettes | 139 |
6.5%
|
| 7 | 26 - 99 cigarettes | 189 |
8.8%
|
| 8 | 100 or more cigarettes (5 or more packs) | 451 |
21%
|
| Sysmiss | 6 |