Table 2.
Participant characteristics
| Adult convenience (n = 999) % |
Adult probability (n = 1,692) % |
Adolescent probability (n = 869) % |
|
|---|---|---|---|
| Age, years | |||
| 13–17 | – | – | 100 |
| 18–25 | 24.9 | 24.9 | – |
| 26–34 | 40.1 | 14.1 | – |
| 35–44 | 17.4 | 12.8 | – |
| 45–54 | 10.2 | 18.4 | – |
| 55–64 | 6.3 | 16.3 | – |
| 65+ | 1.0 | 13.5 | – |
| Male | 54.9 | 45.7 | 48.3 |
| Race | |||
| White | 82.4 | 70.2 | 81.9 |
| Black or African-American | 6.7 | 19.5 | 9.4 |
| Native American | 0.8 | 2.4 | 1.8 |
| Asian | 6.8 | 2.1 | 2.1 |
| Other | 3.3 | 5.7 | 4.7 |
| Hispanic | 8.5 | 7.8 | 6.4 |
| Education | |||
| <High school | 0.7 | 10.2 | 99.4 |
| High school | 12.5 | 25.8 | 0.6 |
| Some college | 28.7 | 23.2 | – |
| Associate’s degree | 11.4 | 10.3 | – |
| Bachelor's degree | 36.4 | 20.0 | – |
| Master’s degree | 8.6 | 7.7 | – |
| Professional or doctoral degree | 1.7 | 2.2 | – |
| Income, annual household | |||
| $0–$24,999 | 26.1 | 33.0 | – |
| $25,000–$49,999 | 35.5 | 26.5 | – |
| $50,000–$74,999 | 21.2 | 17.4 | – |
| $75,000–$99,999 | 10.1 | 10.0 | – |
| $100,000 or more | 7.1 | 13.0 | – |
| Smoker | 31.1 | 37.4 | 10.2 |
Adult smokers were defined as having ever smoked at least 100 cigarettes and currently smoking every day or some days. Adolescent ever smokers were defined as having ever tried cigarettes, even one or two puffs. Missingness was negligible for all participant characteristics and highest for annual household income in the adult probability sample (4.79%).