| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never used electronic cigarette | 2034 |
76.2%
|
| 2 | I don't use electronic cigarette now | 274 |
10.3%
|
| 3 | Yes | 232 |
8.7%
|
| 4 | No | 129 |
4.8%
|
| Sysmiss | 5 |