| Value | Category | Cases | |
|---|---|---|---|
| 1 | I don't smoke tobacco | 1205 |
78.9%
|
| 2 | Curiosity and experiment | 201 |
13.2%
|
| 3 | Peer pressure | 34 |
2.2%
|
| 4 | Model effect (such as father, brother, teacher or a celebrity) | 55 |
3.6%
|
| 5 | Filling free time | 12 |
0.8%
|
| 6 | Others | 21 |
1.4%
|
| Sysmiss | 8 |