Table 1.
Participant characteristics for the total sample and by e-cigarette device type*
| Total n=276 | E-cigarette device type | |||||
| Disposable pod (n=31) | Refillable pod (n=102) | P value† | Other‡ (n=143) | P value§ | ||
| Demographics | ||||||
| Age, mean (SD) | 31.8 (10.5) | 26.1 (7.9) | 29.7 (9.5) | 0.08 | 34.5 (10.9) | <0.001¶ |
| Male | 211 (76.5%) | 26 (83.9%) | 82 (80.4%) | 0.67 | 103 (72.0%) | 0.18 |
| Race/ethnicity | ||||||
| Asian | 50 (18.1%) | 6 (19.4%) | 28 (27.5%) | 0.43 | 16 (11.1%) | 0.34 |
| African American/black | 26 (9.4%) | 2 (6.5%) | 7 (6.9%) | 17 (11.9%) | ||
| Hispanic/Latino | 53 (19.2%) | 5 (16.1%) | 19 (18.6%) | 29 (20.3%) | ||
| White | 99 (35.9%) | 9 (29.0%) | 34 (33.3%) | 56 (39.2%) | ||
| Other | 48 (17.4%) | 9 (29.0%) | 14 (13.7%) | 25 (17.5%) | ||
| Daily-e-cigarette use | 215 (77.9%) | 14 (45.2%) | 80 (78.3%) | 0.001¶ | 121 (84.6%) | <0.001¶ |
| Lifetime cigarette use | 209 (75.7%) | 19 (61.3%) | 83 (81.4%) | 0.02¶ | 107 (74.8%) | 0.13 |
| Past 30-day cigarette use | 61 (22.1%) | 7 (22.6%) | 28 (27.5%) | 0.59 | 26 (18.2%) | 0.57 |
| Preferred nicotine level (mg/mL), mean (SD) | 17.0 (18.7) | 41.6 (17.7) | 26.4 (18.0) | <0.001¶ | 5.2 (6.9) | <0.001¶ |
| First nicotine containing product | ||||||
| E-cigarette | 32 (11.6%) | 11 (35.5%) | 9 (8.8%) | 0.001¶ | 12 (8.4%) | <0.001¶ |
| Cigarette or other tobacco product | 244 (88.4%) | 20 (64.5%) | 93 (91.2%) | 131 (91.6%) | ||
| Flavour preference | ||||||
| Fruit/candy | 201 (72.8%) | 25 (80.7%) | 75 (73.5%) | 0.42 | 101 (70.6%) | 0.26 |
| Dessert | 91 (33.0%) | 8 (25.8%) | 26 (25.5%) | 0.97 | 57 (39.9%) | 0.15 |
| Mint | 107 (38.8%) | 24 (77.4%) | 39 (38.2%) | <0.001¶ | 44 (30.8%) | <0.001¶ |
| Menthol | 101 (36.6%) | 21 (67.7%) | 38 (37.2%) | 0.004¶ | 42 (29.4%) | <0.001¶ |
| Tobacco | 23 (8.3%) | 6 (19.4%) | 6 (5.9%) | 0.03 | 11 (7.7%) | 0.06 |
*Data are expressed as No (%) unless otherwise indicated.
†For the difference between past 30-day disposable pod users and past 30-day refillable pod users.
‡Other devices include box mods and vape pens.
§For the difference between past 30-day disposable pod users and other device type users.
¶Statistically significant after Benjamini-Hochberg corrections for multiple testing to control false-discovery rate at 0.05 (based on two-tailed corrected p value).