Table 1. Sample Characteristics of High School Students Not Susceptible to Smoking Cigarettes (n = 1,627), North Carolina Youth Tobacco Survey, 2015.
| Variable | No. | %a or Mean (95% Confidence Interval) |
|---|---|---|
| Sex | ||
| Female | 818 | 50.7 (47.3–54.1) |
| Male | 809 | 49.3 (45.9–52.7) |
| Age, y | 1,627 | 15.6 (15.4–15.7) |
| Race/ethnicity | ||
| Non-Hispanic white | 899 | 50.9 (46.0–55.8) |
| Non-Hispanic black | 429 | 31.1 (26.7–35.5) |
| Hispanic | 208 | 10.6 (8.5–12.8) |
| Non-Hispanic other | 91 | 7.4 (4.5–10.3) |
| Susceptibility to e-cigarette use | ||
| Not susceptible to using e-cigarettes | 1,208 | 73.9 (70.9–76.9) |
| Susceptible to using e-cigarettes | 179 | 11.3 (9.5–13.0) |
| Ever e-cigarette user | 172 | 10.4 (8.6–12.1) |
| Current e-cigarette user | 68 | 4.5 (3.2–5.7) |
| Exposure to e-cigarette vapor in indoor or outdoor public places in the past 7 days | ||
| No | 1,338 | 83.4 (81.1–85.7) |
| Yes | 289 | 16.6 (14.3–18.9) |
| Exposure to e-cigarettes at home | ||
| No | 1,546 | 94.9 (94.0–95.9) |
| Yes | 81 | 5.1 (4.1–6.0) |
| Exposure to online tobacco advertising (including e-cigarettes), mean ratingb | 1,627 | 2.5 (2.4–2.5) |
| Perceived harm, mean rating | ||
| Of e-cigarettesc | 1,627 | 2.1 (2.1–2.2) |
| Of secondhand e-cigarette vapord | 1,627 | 2.9 (2.8–3.0) |
Abbreviation: e-cigarette, electronic cigarette.
Percentages are weighted estimates.
Rated on a 5-point scale. Participants were asked, “When you are using the Internet, how often do you see ads for tobacco products, including electronic cigarettes or e-cigarettes?” Response options were 1, never or “I do not use the Internet”; 2, rarely; 3, sometimes; 4, most of the time; and 5, always.
Rated on a 4-point scale. Participants were asked, “How harmful are electronic cigarettes to your health?” Response options were 1, not sure or not at all harmful; 2, somewhat harmful; 3, very harmful; and 4, extremely harmful.
Rated on a 4-point scale. Participants were asked, “Do you think that breathing vapor from other people’s e-cigarettes is . . . ?” Response options were 1, not harmful at all to one’s health; 2, not very harmful to one’s health; 3, somewhat harmful to one’s health; or 4, very harmful to one’s health.