| Authors | Our serie 2017 | |||
| Ntsumbu, 2015, Cotonou [10] | Gnonlonfoun 2015, Benin [7] | Sidibe et al., 2006, Bamako in mali [11] | ||
| Medias | 52.72% | 39.1% | 96.3% | 22.7% |
| Education | 10.76% | 32.7% | 19.6% | 32.7% |
| Parents | - | 18.3% | - | 7.8% |
| Friends | - | 10% | 72.4% | 12.4% |
| Health worker | 22.73% | - | - | 15.6% |