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. 2020 Apr 8;17(7):2541. doi: 10.3390/ijerph17072541

Table 1.

Overall awareness, ever use, and past-30-day use of ENDS among adult residents in five Chinese cities in 2018, N = 10,233.

Demographic Characteristics Awareness of ENDS Ever Use of ENDS Past-30-Day Use of ENDS
% 95% CI % 95% CI % 95% CI
Total 51.3 48.0–54.6 4.8 4.1–5.5 0.9 0.6–1.3
Sex
Male 59.4 55.6–63.2 8.6 7.2–9.9 1.6 1.0–2.2
Female 43.0 39.5–46.6 0.9 0.5–1.4 0.3 0.1–0.5
Age (Years)
15–24 61.1 55.9–66.2 5.6 3.8–7.5 1.5 0.4–2.5
25–44 59.0 55.1–62.9 5.7 4.6–6.8 1.1 0.6–1.6
45–64 44.0 40.4–47.5 4.2 3.3–5.1 0.6 0.3–1.0
65 and above 24.5 21.1–27.9 1.6 0.9–2.3 0.2 0.0–0.4
Education Level
Primary school completed or below 21.2 16.9–25.4 1.2 0.4–2.0 0.1 0.0–0.2
Junior high school completed 41.0 37.4–44.7 4.5 3.2–5.8 0.7 0.2–1.2
Senior high school completed 53.8 49.4–58.1 4.7 3.6–5.7 1.0 0.5–1.4
College degree or above 61.6 57.4–65.9 5.9 4.8–7.0 1.3 0.6–1.9
Occupation
Gov. employee, teacher, healthcare provider 58.6 53.3–63.9 4.1 2.7–5.5 0.6 0.2–1.0
Factory, business, service industry employee 59.8 56.0–63.6 6.3 5.0–7.5 1.3 0.8–1.9
Not in the labor force 1 43.9 40.3–47.5 3.8 3.0–4.6 0.7 0.3–1.2
Current Smoking Status
Yes 67.8 63.7–72.0 17.1 14.5–19.7 3.9 2.6–5.3
No 46.3 43.1–49.6 1.1 0.7–1.5 0.0 0.0–0.1

1 Respondents who were not in the labor force included students, homemakers, retired, and unemployed residents either able or unable to work.