Table 1.
Sample Characteristics, and Awareness and Use of E-Cigarettes
| No. (%)a | Prevalence of e-cigarette awareness and use, % (95% CI)b | |||||
|---|---|---|---|---|---|---|
| Among those aware of e-cigarettes | ||||||
| Aware | Ever | Current | Ever | Current | ||
| Overall | 24,644 | 50.3 (48.5, 52.0) | 6.8 (5.9, 7.7) | 2.1 (1.8, 2.5) | 13.2 (11.7, 14.9) | 4.0 (3.4, 4.7) |
| Sex | ||||||
| Male | 12,369 (51.1) | 51.9 (50.0, 53.8) | 8.1 (7.0, 9.3) | 2.8 (2.2, 3.5) | 15.1 (13.2, 17.3) | 5.0 (4.0, 6.2) |
| Female | 12,275 (48.9) | 48.6 (46.6, 50.6) | 5.5 (4.7, 6.4) | 1.4 (1.2, 1.7) | 11.2 (9.6, 12.9) | 2.9 (2.4, 3.5) |
| Race/ethnicity | ||||||
| Non-Hispanic White | 11,814 (53.9) | 58.6 (56.5, 60.7) | 8.1 (7.0, 9.5) | 2.3 (1.9, 2.8) | 13.7 (11.9, 15.7) | 3.9 (3.2, 4.7) |
| Non-Hispanic Black | 3,114 (13.9) | 32.9 (30.0, 35.9) | 3.3 (2.6, 4.1) | 1.2 (0.7, 1.8) | 9.1 (7.0, 11.8) | 2.6 (1.7, 4.0) |
| Hispanic | 5,733 (21.7) | 41.2 (38.3, 44.0) | 6.2 (5.0, 7.6) | 2.4 (1.9, 3.2) | 14.8 (12.2, 17.7) | 5.4 (4.2, 7.0) |
| Non-Hispanic Asian | 1,106 (3.7) | 38.9 (32.6, 45.5) | 2.3 (1.2, 4.4) | 0.9 (0.3, 2.8) | 5.6 (3.0, 10.2) | 2.0 (0.6, 6.8) |
| Other/multiple | 2,105 (6.9) | 58.4 (55.0, 52.4) | 8.1 (6.5, 10.1) | 2.5 (1.7, 3.5) | 13.8 (11.1, 17.1) | 4.1 (2.8, 5.8) |
| Age | ||||||
| ≤ 12 | 5,037 (19.8) | 35.4 (33.0, 37.9) | 1.5 (1.1, 2.0) | 0.7 (0.4, 1.1) | 4.1 (3.1, 5.5) | 1.8 (1.1, 3.0) |
| 13 | 3,995 (14.6) | 43.9 (41.0, 46.9) | 2.8 (2.2, 3.5) | 1.1 (0.8, 1.6) | 6.1 (4.7, 7.8) | 2.4 (1.5, 3.6) |
| 14 | 3,595 (14.2) | 51.2 (48.6, 43.9) | 5.4 (4.2, 6.8) | 1.8 (1.2, 2.7) | 10.1 (7.7, 13.2) | 3.1 (2.0, 5.0) |
| 15 | 3,185 (14.7) | 55.1 (51.8, 58.3) | 8.0 (6.5, 9.9) | 2.4 (1.7, 3.3) | 14.1 (11.6, 17.0) | 4.2 (3.1, 5.7) |
| 16 | 3,245 (14.5) | 56.3 (52.7, 59.9) | 9.0 (7.4, 11.0) | 2.8 (2.0, 3.7) | 15.7 (13.1, 18.7) | 4.8 (3.5, 6.4) |
| ≥ 17 | 5,498 (22.3) | 59.8 (56.4, 63.0) | 6.8 (6.0, 7.8) | 3.6 (2.9, 4.4) | 20.9 (18.5, 23.7) | 5.7 (4.7, 6.9) |
aUnweighted n, with weighted population-weighted column percentages displayed in parentheses.
bPopulation-weighted percentages are displayed, with 95% CIs calculated by Taylor series linearization to account for the complex survey design.