Table 2.
Awareness, Ever and Current Use of E-Cigarettes by Country, Survey Wave, and Smoking Status
| Wave 8 (2010) | Wave 9 (2013) | |||||
|---|---|---|---|---|---|---|
| n/N | % | 95% CI | n/N | % | 95% CI | |
| Awareness | ||||||
| Australia | ||||||
| Current smokers | 212/1,109 | 20.5 | 17.7–23.6 | 695/1,093 | 68.4 | 64.6–71.9 |
| Ex-smokers quit ≤ 12 months | 31/157 | 20.8 | 13.9–30.0 | 73/122 | 58.2 | 46.4–69.2 |
| Ex-smokers quit > 12 months | 36/245 | 17.2 | 11.8–24.5 | 148/277 | 54.7 | 47.1–62.1 |
| Total | 279/1,511 | 20.0 | 17.6–22.6 | 916/1,492 | 64.8 | 61.5–68.0 |
| United Kingdom | ||||||
| Current smokers | 513/975 | 55.9 | 51.9–59.9 | 988/1,103 | 89.4 | 87.2–91.3 |
| Ex-smokers quit ≤ 12 months | 63/118 | 58.5 | 46.1–69.9 | 73/77 | 94.9 | 84.1–98.5 |
| Ex-smokers quit > 12 months | 94/229 | 45.2 | 37.1–53.6 | 209/223 | 94.1 | 89.3–96.8 |
| Total | 670/1,322 | 54.4 | 50.9–57.9 | 1,270/1,403 | 90.5 | 88.6–92.1 |
| Ever use | ||||||
| Australia | ||||||
| Overall | ||||||
| Current smokers | 25/1,109 | 2.5 | 1.6–3.9 | 219/1,093 | 23.7 | 20.3–27.5 |
| Ex-smokers quit ≤ 12 months | 5/157 | 2.4 | 1.9–6.0 | 19/122 | 15.5 | 9.3–24.7 |
| Ex-smokers quit > 12 months | 1/245 | 0.6 | 0.1–4.4 | 13/277 | 6.8 | 3.3–13.5 |
| Total | 31/1,511 | 2.2 | 1.5–3.2 | 251/1,492 | 19.7 | 17.0–22.7 |
| Among those aware | ||||||
| Current smokers | 25/212 | 12.4 | 8.1–18.3 | 219/695 | 34.7 | 29.8–39.8 |
| Ex-smokers quit ≤ 12 months | 5/31 | 11.6 | 4.4–27.2 | 19/73 | 26.6 | 16.0–40.7 |
| Ex-smokers quit > 12 months | 1/36 | 3.7 | 0.5–22.3 | 13/148 | 12.5 | 6.1–23.6 |
| Total | 31/279 | 11.0 | 7.6–15.8 | 251/916 | 30.4 | 26.4–34.7 |
| United Kingdom | ||||||
| Overall | ||||||
| Current smokers | 94/975 | 10.9 | 8.3–14.2 | 473/1,103 | 43.3 | 39.6–46.9 |
| Ex-smokers quit ≤ 12 months | 13/118 | 13.8 | 5.4–30.9 | 40/77 | 62.0 | 46.5–75.4 |
| Ex-smokers quit > 12 months | 5/229 | 1.3 | 0.5–3.3 | 33/223 | 14.0 | 9.4–20.5 |
| Total | 112/1,322 | 9.6 | 7.4–12.5 | 546/1,403 | 39.9 | 36.6–43.3 |
| Among those aware | ||||||
| Current smokers | 94/513 | 19.5 | 15.1–24.9 | 473/987 | 48.5 | 44.5–52.4 |
| Ex-smokers quit ≤ 12 months | 13/63 | 23.6 | 9.6–47.2 | 40/73 | 65.3 | 49.6–78.3 |
| Ex-smokers quit > 12 months | 5/94 | 2.9 | 1.1–7.4 | 33/209 | 14.9 | 9.9–21.7 |
| Total | 112/670 | 17.7 | 13.7–22.5 | 546/1,269 | 44.2 | 40.6–47.8 |
| Current use | ||||||
| Australia | ||||||
| Overall | ||||||
| Current smokers | 10/1,109 | 0.8 | 0.4–1.5 | 81/1,093 | 8.9 | 6.6–11.9 |
| Ex-smokers quit ≤ 12 months | 1/157 | 0.4 | 0.1–2.6 | 3/122 | 2.1 | 0.6–6.7 |
| Ex-smokers quit > 12 months | 0/245 | 0.0 | – | 2/277 | 0.4 | 0.1–1.8 |
| Total | 11/1,511 | 0.6 | 0.3–1.1 | 86/1,492 | 6.6 | 5.0–8.8 |
| Among triers | ||||||
| Current smokers | 10/25 | 31.4 | 15.3–53.5 | 80/219 | 37.0 | 29.0–45.8 |
| Ex-smokers quit ≤ 12 months | 1/5 | 15.5 | 1.9–63.8 | 3/19 | 13.3 | 3.8–37.1 |
| Ex-smokers quit > 12 months | 0/1 | 0.0 | – | 2/13 | 6.3 | 1.3–25.3 |
| Total | 11/31 | 28.0 | 14.1–47.8 | 85/250 | 33.2 | 26.0–41.3 |
| United Kingdom | ||||||
| Overall | ||||||
| Current smokers | 42/975 | 4.9 | 3.2–7.4 | 241/1,103 | 20.7 | 17.8–23.8 |
| Ex-smokers quit ≤ 12 months | 4/118 | 8.3 | 1.8–30.8 | 19/77 | 34.7 | 19.5–53.7 |
| Ex-smokers quit > 12 months | 1/229 | 0.3 | 0.0–1.8 | 9/223 | 2.7 | 1.3–5.3 |
| Total | 47/1,322 | 4.5 | 2.9–6.9 | 269/1,403 | 18.8 | 16.2–21.7 |
| Among triers | ||||||
| Current smokers | 42/94 | 44.8 | 31.1–59.2 | 238/470 | 47.5 | 41.8–53.3 |
| Ex-smokers quit ≤ 12 months | 4/13 | 60.4 | 20.7–89.9 | 19/40 | 55.9 | 34.6–75.2 |
| Ex-smokers quit > 12 months | 1/5 | 19.7 | 2.4–71.2 | 9/33 | 19.1 | 9.2–35.4 |
| Total | 47/112 | 46.5 | 32.7–60.8 | 266/543 | 46.8 | 41.3–52.3 |
Note. Percentages are based on weighted data; – estimates cannot be computed because of small cell size.