| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have not received any prevention course | 618 |
47.8%
|
| 2 | I don't remember | 281 |
21.7%
|
| 3 | My teachers | 284 |
21.9%
|
| 4 | Professionals from a public institution | 43 |
3.3%
|
| 5 | Professionals from a private institution | 11 |
0.9%
|
| 6 | Other | 57 |
4.4%
|
| Sysmiss | 20 |