| Value | Category | Cases | |
|---|---|---|---|
| 1 | I neverused e-cigarettes | 433 |
67.9%
|
| 2 | I do not used e-cigarettes now | 129 |
20.2%
|
| 3 | More than before | 46 |
7.2%
|
| 4 | About the same as before | 17 |
2.7%
|
| 5 | Less than before | 13 |
2%
|
| Sysmiss | 4 |