Table 2. Tobacco and nicotine product use at enrollment.
| Characteristics | Exclusive cigarette smokers (n=353) | Dual users (n=367) |
|---|---|---|
| Characteristics of cigarette smoking at enrollment | ||
| Pattern of cigarette smoking, n (%) | ||
| Adults who smoke daily | 353 (100) | 367 (100) |
| Frequency of cigarette smoking, mean (SD) | ||
| CPDa | 13.3 (7.3) | 12.1 (7.2) |
| Type of cigarettes smoked, n (%) | ||
| Menthol | 197 (55.8) | 201 (54.8) |
| Nonmenthol | 156 (44.2) | 166 (45.2) |
| Planned to quit smoking cigarettes in the next 6 months, n (%) | ||
| Yes | 54 (15.3) | 34 (9.3) |
| No | 261 (73.9) | 328 (89.4) |
| Don’t know | 38 (10.8) | 5 (1.4) |
| Characteristics of other TNPb use at enrollment | ||
| Patterns of ENDSc use, n (%)d | ||
| Daily user | 0 (0) | 173 (47.1) |
| Occasional user | 55 (15.6) | 194 (52.9) |
| Nonuser | 298 (84.4) | 0 (0) |
| Flavor of ENDS used most often, n (%)e | ||
| Tobacco | — | 86 (23.4) |
| Menthol | — | 146 (39.8) |
| Nontobacco and nonmentholf | — | 131 (35.7) |
| Some other flavor | — | 4 (1.1) |
| Don’t know | — | 0 (0) |
| Patterns of other TNP use, n (%) | ||
| Moist snuff, chewing tobacco, or snus | ||
| Daily user | 1 (0.3) | 13 (3.5) |
| Occasional user | 16 (4.5) | 72 (19.6) |
| Nonuser | 336 (95.2) | 282 (76.8) |
| Nicotine pouches | ||
| Daily user | 1 (0.3) | 11 (3) |
| Occasional user | 20 (5.7) | 84 (22.9) |
| Nonuser | 332 (94.1) | 272 (74.1) |
| Cigars or cigarillos | ||
| Daily user | 23 (6.5) | 49 (13.4) |
| Occasional user | 118 (33.4) | 171 (46.6) |
| Nonuser | 212 (60.1) | 147 (40.1) |
| Pipe tobacco | ||
| Daily user | 0 (0) | 1 (0.3) |
| Occasional user | 16 (4.5) | 47 (12.8) |
| Nonuser | 337 (95.5) | 319 (86.9) |
| Hookah or waterpipe tobacco | ||
| Daily user | 0 (0) | 10 (2.7) |
| Occasional user | 87 (24.6) | 153 (41.7) |
| Nonuser | 266 (75.4) | 204 (55.6) |
CPD: cigarettes per day.
TNP: tobacco and nicotine-containing products.
ENDS: electronic nicotine delivery systems.
Adults who smoke cigarettes, who did not currently use electronic nicotine delivery systems daily nor had used them 100+ times in their lifetime, were enrolled in the exclusive cigarette smokers study group, whereas adults who smoke cigarettes, who currently used electronic nicotine delivery systems (daily or occasionally), and had used them 100+ times in their lifetime, were enrolled in the dual users study group.
Exclusive cigarette smokers, who neither currently used electronic nicotine delivery systems daily nor had used them 100+ times in their lifetime, were not asked the flavor of electronic nicotine delivery systems they used most often.
Nontobacco and nonmenthol electronic nicotine delivery systems flavor use included the following response options: fruit, chocolate, alcoholic or nonalcoholic drink, clove, spice, candy, desserts.