Table 2.
Prevalence and Correlates of E-Cigarette Use Among Past 3-Month Tobacco Users (n = 840)
| E-cigarette use, yes* | E-cigarette use vs. no e-cigarette use | E-cigarette use vs. no e-cigarette use | |
|---|---|---|---|
| Past-3 month tobacco users† | Row % (95% CI) | Crude OR (95% CI) | Adjusted OR (95% CI) |
| Total | 16.31 (13.81–18.81) | – | – |
| Sex* | |||
| Male | 14.94 (11.68–18.19) | 1.00 | 1.00 |
| Female | 18.04 (14.15–21.93) | 1.26 (0.87–1.81) | 0.98 (0.65–1.49) |
| Age in years | |||
| 18–34 | 21.43 (16.04–26.81) | 1.00 | 1.00 |
| 35–49 | 21.94 (16.66–27.22) | 1.02 (0.66–1.60) | 1.29 (0.76–2.18) |
| 50+ | 9.76 (6.77–12.76) | 0.39 (0.25–0.63) | 0.58 (0.31–1.06) |
| Race/ethnicity | |||
| White, non-Hispanic | 24.70 (19.31–30.09) | 1.00 | 1.00 |
| Black/African-American, non-Hispanic | 11.13 (8.28–13.99) | 0.38 (0.25–0.58) | 0.61 (0.39–0.96) |
| Hispanic | 14.77 (7.34–22.20) | 0.53 (0.27–1.02) | 0.84 (0.39–1.81) |
| Other/unknown‡ | 28.95 (14.50–43.40) | 1.24 (0.58–2.65) | 1.61 (0.71–3.64) |
| Education | |||
| Less than high school | 10.00 (5.93–14.07) | 1.00 | 1.00 |
| High school/GED | 13.58 (9.45–17.72) | 1.41 (0.80–2.51) | 1.27 (0.70–2.30) |
| Some college or more | 21.92 (17.67–26.17) | 2.54 (1.52–4.24) | 1.99 (1.15–3.47) |
| Employment | |||
| Employed | 21.16 (15.99–26.33) | 1.00 | 1.00 |
| Unemployed§ | 14.75 (10.02–19.47) | 0.64 (0.39–1.04) | 0.90 (0.52–1.55) |
| Disabled | 11.84 (7.78–15.89) | 0.50 (0.30–0.82) | 0.77 (0.43–1.38) |
| Otherǁ | 18.25 (11.77–24.73) | 0.83 (0.49–1.41) | 0.95 (0.53–1.71) |
| Marital status | |||
| Married/cohabitated | 21.76 (15.55–27.98) | 1.00 | 1.00 |
| Separated/divorced/widowed | 14.66 (10.10–19.22) | 0.62 (0.37–1.03) | 1.02 (0.58–1.80) |
| Never married | 15.07 (11.71–18.43) | 0.64 (0.41–1.00) | 0.88 (0.53–1.46) |
| Daily/almost daily tobacco use, past 3-months† | |||
| No | 10.73 (6.75–14.71) | 1.00 | 1.00 |
| Yes | 18.45 (15.36–21.54) | 1.87 (1.18–2.98) | 1.93 (1.17–3.20) |
| Alcohol use, past 3-months | |||
| No | 16.10 (12.08–20.12) | 1.00 | 1.00 |
| Yes | 16.44 (13.24–19.64) | 1.03 (0.70–1.50) | 0.89 (0.58–1.37) |
| Cannabis use, past-3 months | |||
| No | 15.57 (12.64–18.50) | 1.00 | 1.00 |
| Yes | 18.07 (13.28–22.86) | 1.19 (0.81–1.77) | 1.31 (0.83–2.06) |
| Other drug use, past 3-months¶ | |||
| No | 15.91 (13.11–18.71) | 1.00 | 1.00 |
| Yes | 17.78 (12.18–23.37) | 1.14 (0.74–1.76) | 1.31 (0.79–2.18) |
| Study site | |||
| New York | 11.42 (7.20–15.64) | 1.00 | 1.00 |
| Maryland | 12.54 (8.70–16.38) | 1.11 (0.65–1.92) | 1.03 (0.54–1.94) |
| Virginia | 10.84 (4.14–17.55) | 0.94 (0.42–2.12) | 1.18 (0.48–2.88) |
| North Carolina | 26.69 (21.21–32.18) | 2.84 (1.72–4.69) | 2.02 (1.04–3.92) |
Italic: p < 0.05
*Missing: e-cigarette use (n = 1), sex (n = 1)
†Past 3-month/almost daily/daily tobacco use was assessed by the ASSIST and included cigarettes and other tobacco products
‡Other/unknown race includes Indian American, Alaska Native, Native Hawaiian, Guamanian, Samoan, Pacific Islander, Asian Indian, Chinese, Filipino, Japanese, Korean, Vietnamese, Asian, any other race, race refused/do not know
§Unemployed includes only temporarily laid off, sick leave, maternity leave, looking for work, or unemployed
ǁOther employment includes other, retired, or keeping house
¶Other drug use includes cocaine, amphetamine-type stimulants, inhalants, sedatives/sleeping pills, hallucinogens, opioids, or other non-specified drugs