Table 3.
Perceived Source of and Discouragement From Chemicals in Cigarette Smoke Among Adults and Adolescents
| Wave 1 2014–2015 (%) |
Wave 2 2016–2017 (%) |
Difference (95% CI) | p | |
|---|---|---|---|---|
| Adults | ||||
| Tobacco before made into cigarettes | 7.9 | 9.1 | 1.2 (−0.9 to 3.3) | .27 |
| Tobacco additives | 61.4 | 64.7 | 3.3 (−0.4 to 7.1) | .08 |
| Burning the cigarette | 30.7 | 26.2 | −4.5 (−8.1 to −0.9) | .01 |
| Discouragement | 68.5 | 70.7 | 2.2 (0.5 to 3.9) | .01 |
| Adolescents | ||||
| Tobacco before made into cigarettes | 10.3 | 10.9 | 0.6 (−2.8 to 3.9) | .74 |
| Tobacco additives | 43.2 | 48.3 | 5.1 (−0.2 to 10.4) | .06 |
| Burning the cigarette | 46.5 | 40.8 | −5.7 (−11.0 to −0.4) | .04 |
| Discouragement | 76.0 | 74.2 | −1.8 (−4.1 to 0.4) | .11 |
Percentages are weighted. For perceived source of chemicals, data missing for <2% of adults and adolescents. For discouragement, data indicate the proportion of people who reported being “a lot” discouraged from wanting to smoke on a 4-point scale from “not at all” to “a lot.”