Author | Region of study | Design | Age | Incidences of tobacco use | population |
[21] | Nairobi | Tobacco smoke | 12 - 17 | 31% | 1130 |
[5] | Nairobi | Tobacco smoke | Mean 16.7 | 32% | 5311 |
[13] | National | Tobacco smoke | 13 - 15 | 21.2% | 6768 |
[8] | National | Products of tobacco | 14 - 23 | 18.3 | 458 |
[22] | Eldoret | Cigarette use | 18 - 32 | 42.8% | 500 |