| Source of information | Sex | Total | ||||
| Male | Feminine | |||||
| Eff. | % | Eff. | % | Eff. | % | |
| Not specified | 2 | 0.5 | 5 | 1.2 | 7 | 1.7 |
| Parents | 7 | 1.75 | 21 | 5.25 | 28 | 7 |
| Friends | 38 | 9.5 | 52 | 13 | 90 | 22.5 |
| Colleagues | 8 | 2 | 13 | 3.2 | 21 | 5.2 |
| School | 65 | 16.25 | 93 | 23.25 | 158 | 39.5 |
| Radio | 0 | 0 | 3 | 0.7 | 3 | 0.7 |
| Television | 31 | 7.7 | 28 | 7 | 59 | 14.7 |
| Internet | 9 | 2.25 | 5 | 1.25 | 14 | 3.5 |
| Newspapers | 12 | 3 | 8 | 2 | 20 | 5 |
| Total | 172 | 43 | 228 | 57 | 400 | 100 |