Table 1.
Demographic characteristics of participants, by experimental condition.
| Warning statements | |||||
|---|---|---|---|---|---|
| Ingredient (n=340) |
Industry (n=337) |
None (control) (n=170) |
Total (n=847) |
||
| % (n) | % (n) | % (n) | % (n) | ||
| E-cigarette use | |||||
| Never user | 59.1 (201) | 57.9 (195) | 61.6 (103) | 58.9 (499) | |
| Past user | 18.5 (63) | 21.1 (71) | 19.4 (33) | 19.7 (167) | |
| Current user | 22.3 (76) | 21.1 (71) | 20.0 (34) | 21.4 (181) | |
| Smoking status | |||||
| Non-smoker | 36.8 (125) | 35.0 (118) | 37.7 (64) | 36.3 (307) | |
| Non-daily | 27.7 (94) | 30.0 (101) | 32.4 (55) | 29.5 (250) | |
| Daily | 35.6 (121) | 35.0 (118) | 30.0 (51) | 34.2 (290) | |
| E-cigarette marketing exposure | |||||
| Low | 27.4 (93) | 25.5 (86) | 30.6 (52) | 27.3 (231) | |
| Medium | 31.5 (107) | 32.3 (109) | 32.4 (55) | 32.0 (271) | |
| High | 41.2 (140) | 42.1 (142) | 37.1 (63) | 40.7 (345) | |
| Age(years) | |||||
| 18–24 | 48.2 (164) | 52.5 (177) | 50.0 (85) | 50.3 (426) | |
| 25–34 | 51.8 (176) | 47.5 (160) | 50.0 (85) | 49.7 (421) | |
| Sex | |||||
| Male | 49.7 (169) | 50.4 (170) | 50.0 (85) | 50.1 (424) | |
| Female | 50.3 (171) | 49.6 (167) | 50.0 (85) | 49.9 (423) | |
| Race | |||||
| White | 78.5 (267) | 75.4 (254) | 75.9 (129) | 76.7 (650) | |
| Non-white | 21.5 (73) | 24.6 (83) | 24.1 (41) | 23.3 (197) | |
| Ethnicity | |||||
| Non-Hispanic | 83.2 (283) | 84.0 (283) | 82.4 (140) | 83.4 (706) | |
| Hispanic | 16.8 (57) | 16.0 (54) | 17.6 (30) | 16.6 (141) | |
| Education | |||||
| ≤ High school | 23.0 (78) | 21.1 (71) | 21.2 (36) | 21.8 (185) | |
| Some college | 38.2 (130) | 37.4 (126) | 40.0 (68) | 38.3 (324) | |
| ≥ 4 years of college | 38.8 (132) | 41.5 (140) | 38.8 (66) | 39.9 (338) | |
| Mean (SD) | Mean (SD) | Mean (SD) | Mean (SD) | ||
| Days smoked in past month | 22.93 (9.74) | 21.34 (10.63) | 23.65 (9.26) | 22.90 (9.75) | |
There were no significant differences by condition for demographics (x2 tests) or days smoked [analysis of variance (ANOVA)]. For marketing exposure, responses were summed: never (0), once or twice (1), three or four times (2), five times or more (3) and not sure (0), and then recoded into low (0) medium (1–2) and high (3–6). E-cigarette use was categorized as never user, past user (used but not in the past 30 days) or current user (used at least once in the past 30 days). SD= standard deviation.