Table 2. Tobacco Use Characteristics of Electronic Cigarette (E-Cigarette) Users, Participants (N = 50) in Study of Real-World Electronic Cigarette Use, United States, 2014–2015.

Characteristic	n (%)a
All e-cigarette users
Ever smoked conventional cigarettes?
Yes	48 (96%)
No	2 (4%)
Currently smoke conventional cigarettes?
Yes	21 (42%)
No	29 (58%)
Ever smoked flavored cigarettes?
Yes	39 (78%)
No	11 (22%)
Average months e-cigarette Use, mean (standard deviation)	16.32 (1.11)
Intend to quit e-cigarettes?
No	33 (66%)
Yes	17 (34%)
E-cigarette users who also smoke conventional cigarettes (n = 21)
Intend to quit conventional cigarette smoking?
No	6 (28%)
Yes	10 (48%)
Don’t know	5 (24%)
Past 30 days, number of days smoked conventional cigarettes
1–5	12 (57%)
6–10	2 (9%)
10–20	1 (5%)
20–30	6 (29%)
Past 30 days, no. conventional cigarettes smoked per day
1–5	16 (76%)
6–10	2 (10%)
>10	3 (14%)
Former cigarette smokers (n = 27)
How many months since quit smoking cigarettes?
<6	4 (15%)
6–12	9 (33%)
>12	12 (45%)
Data missing	2 (7%)

^a Unless otherwise indicated.