Table 5.
Percent of adolescents transitioning between tobacco product use categories, by study
| Follow up status | |||||
|---|---|---|---|---|---|
| Neither | Exclusive smokeless tobacco user | Exclusive smoker | Dual user | ||
| Baseline | Neither | 2 year follow-up | 2 year follow-up | 2 year follow-up | 2 year follow-up |
| • 71.5% males [20] | • 4.6% males [20] | 15.7% males [20] | • 8.3% males [20] | ||
| 4 year follow-up | 4 year follow-up | 4 year follow-up | 4 year follow-up | ||
| • 82.2% males [19] | • 3.1% males [19] | • 13.5% males [19] | • 1.1% males [19] | ||
| Exclusive smokeless tobacco user | 2 year follow-up | 2 year follow-up | 2 year follow-up | 2 year follow-up | |
| • 16.6% males [20] | • 26.2% males [20] | • 16.6% males [20] | • 40.7% males [20] | ||
| 4 year follow-up | 4 year follow-up | 4 year follow-up | 4 year follow-up | ||
| • 15.2% males [19] | • 44.8% males [19] | • 25.5% males [19] | • 14.3% males [19] | ||
| Exclusive smoker | 1-2 year follow-up | 1-2 year follow-up | 1-2 year follow-up | 1-2 year follow-up | |
| • 20.0% males and females combined [18] | • 1.6% males and females combined [18] | • 73.4% males and females combined [18] | • 5% males and females combined [18] | ||
| 2 year follow-up | 2 year follow-up | 2 year follow-up | 2 year follow-up | ||
| • 25.6% males [20] | • 3.8% males [20] | • 46.8% males [20] | • 23.8% males [20] | ||
| 4 year follow-up | 4 year follow-up | 4 year follow-up | 4 year follow-up | ||
| • 16.9% males [19] | • 0.8% males [19] | • 78.7% males [19] | • 3.6% of males [19] | ||
| Dual user | 1-2 year follow-up | 1-2 year follow-up | 1-2 year follow-up | 1-2 year follow-up | |
| • 17.9% males and females combined [18] | • 8.5%* males and females combined [18] | • 36.6% males and females combined [18] | • 37% males and females combined [18] | ||
| 4 year follow-up | 4 year follow-up | 4 year follow-up | 4 year follow-up | ||
| • 14.1% males [19] | • 34.2% males [19] | • 31.2% males [19] | • 20.4% males [19] | ||
*Calculated from other estimates provided in the paper.
[18] O’Hegarty et al., nationally representative National Longitudinal Study of Adolescent Health (Add Health).
[19] Tomar et al., nationally representative Teenage Attitudes and Practices Survey.
[20] Severson et al., secondary data from Project Sixteen (rural Oregon) (transition estimates calculated from Figures 1 and 2).