| Value | Category | Cases | |
|---|---|---|---|
| 1 | None of my parents smoke | 7394 |
44.2%
|
| 2 | Both my parents smoke | 2255 |
13.5%
|
| 3 | father or male guardian | 6158 |
36.8%
|
| 4 | mother or female guardian | 908 |
5.4%
|
| Sysmiss | 123 |