Table 1.

Characteristics of Smokers in Each Analytic Sample

	Visited Physician in Past 12 Months (n = 2671)^*	Talked to Physician About e-Cigarettes (n = 257)^{^†}
Age (years)
18–24	9.8	8.9
25–34	27.3	37.0
35–44	22.1	18.3
45–54	21.6	16.0
55–64	19.2	19.8
Sex
Male	50.6	58.4
Female	49.4	41.6
Education
High school or less	20.4	14.4
Some college or university	33.0	24.5
Completed college or university	46.6	61.1
Annual household income
≤$29,999	19.9	12.8
$10,000–59,999	31.5	24.2
≥$60,000	48.6	63.0
Race/ethnicity
White	56.8	59.1
African American	5.4	6.2
Latino	33.8	32.0
Other race	4.0	3.1
Daily smoking
No	21.3	20.6
Yes	78.7	79.4
Cigarettes per day (n)	12.0 (9.3)	11.8 (8.2)
Heavy Smoking Index (range, 0–6)	2.3 (1.5)	2.4 (1.3)
Intention to quit in the next 6 months
No	51.1	34.2
Yes	48.9	65.8
Attempted to quit in the previous 4 months
No	53.6	35.8
Yes	46.4	64.2
Talked about e-cigarettes
No	84.8
Yes	15.2
Received advice to use e-cigarettes to quit
No		38.5
Yes		61.5
E-cigarette use
Never used e-cigarettes	43.1	18.7
Tried e-cigarettes/no use in past 4 months	12.3	8.9
Current nondaily use	38.7	58.0
Current daily use	5.9	14.4

Data are unweighted and shown as a percentage or mean (standard deviation).
↵* The first analytic sample of those who visited a doctor in the past 12 months (waves 6, 7, and 8).
↵† The second analytic sample of those who talked to their doctor about e-cigarettes (waves 7 and 8).