Author | Region of study | Design | Age | Percentage incidences of tobacco abuse | Sample population |
[15] | National | Tobacco smoke | average 16.7 | 10.5% | 5311 |
[6] | National | Tobacco smoke | 13 - 15 | 8.2% | 6768 |
[23] | National | Tobacco products | 15 - 49 | 19% | 18,503 |
[24] | Nairobi | Tobacco smoke | Pupils | 12.1% | 281 |
[25] | Rural | Products of tobacco | Children | 3.8% | 800 |
[26] | National | Products of tobacco | 15 - 65 | 9.1% | 2580 |