E-cigarette prevalence by smoking status

See data table below with 95% confidence intervals.As shown in Figure 12.9, prevalence of e-cigarette use varied greatly by smoking status, both for ever use160 and past 30-day use.161

Half (54.1%a) of current smokers (including daily and non-daily smokers) had ever used e-cigarettes, compared to 8.5%b of non-smokers (including former and never smokers). Similarly, past 30-day use was 12.3%c among current smokers and just 1.2%d among non-smokers. Daily e-cigarette use was 3.0%e among current smokers and 0.6%f among non-smokers.

Prevalence by sex, among smokers and non-smokers

See data table below with 95% confidence intervals.As shown in Figure 12.10, prevalence of using e-cigarettes was similar among male and female smokers for both ever use and past 30-day use.162,163

Among non-smokers, ever-use of e-cigarettes was significantly more prevalent among males,164 but past 30-day use did not differ significantly by sex.165

This pattern held among youth aged 15-19, with greater sex differences observed among non-smokers than smokers (data not shown).

Prevalence by age group, among smokers and non-smokers

Prevalence of using e-cigarettes differed significantly by age among both smokers and non-smokers.166,167 While smokers had much higher prevalence than non-smokers, the same pattern of greater use among youth and younger adults, declining with age, was observed in both groups (Figure 12.11, Figure 12.12).

See data table below with 95% confidence intervals.See data table below with 95% confidence intervals.

Use of e-cigarettes in the past 30 days also varied by smoking status and age group,168,169 again with much higher use observed among smokers than non-smokers and similar patterns by age group, although at much lower prevalence levels than for ever use (Figure 12.13, Figure 12.14).

See data table below with 95% confidence intervals.See data table below with 95% confidence intervals.


95% confidence intervals for in-text estimates

a: 54.1 [49.0-59.2]
b: 8.5 [7.3-9.7] 
c: 12.3 [9.1-15.6]
d: 1.2 [0.8-1.6]
e: 3.0 [1.8-4.2]
f: 0.6 [0.3-0.9]