Table 3. Study product use and assessment at week 8.
| Study product use | End of observational period (week 8) | |
|---|---|---|
| Exclusive cigarette smokers (n=353) | Dual users (n=367) | |
| SPa use at week 8 | ||
| Patterns of SP use, n (%)b | ||
| Used SP (any SP use) | 304 (86.2) | 338 (92.1) |
| Switched completely to SP (SP use without cigarettes) | 14 (4) | 15 (4.1) |
| Switched completely to ENDSc (SP use and other ENDS without cigarettes) | 2 (0.6) | 4 (1.1) |
| Dual SP use (SP and cigarettes) | 273 (77.3) | 218 (59.4) |
| Dual ENDS use (SP and other ENDS and cigarettes) | 15 (4.2) | 101 (27.5) |
| Did not use SP (SP nonusers) | 49 (13.8) | 29 (7.9) |
| Frequency of SP use | ||
| SP use, occasions per day | ||
| Mean (SD) | 5 (8.2) | 7.3 (12.3) |
| 95% CId | 4.1-5.9 | 6-8.5 |
| Patterns of SP use by variant usede, n (%) | ||
| SP variant used overall (n=304/n=338) | ||
| Only SP tobacco variant | 101 (33.2) | 112 (33.1) |
| Only SP menthol variant | 166 (54.6) | 167 (49.4) |
| Both SP variants | 37 (12.2) | 59 (17.5) |
| Switched completely to SP by variant used (n=14/n=15) | ||
| Only SP tobacco variant (n=101/n=112) | 5 (5) | 4 (3.6) |
| Only SP menthol variant (n=166/n=167) | 8 (4.8) | 8 (4.8) |
| Both SP variants (n=37/n=59) | 1 (2.7) | 3 (5.1) |
| SP flavor variants used by type of cigarettes smoked at enrollment, n (%)f | ||
| Menthol cigarette smokers (n=174/n=187) | ||
| Only SP tobacco variant | 12 (6.9) | 16 (8.6) |
| Only SP menthol variant | 140 (80.5) | 134 (71.7) |
| Both SP variants | 22 (12.6) | 37 (19.8) |
| Nonmenthol cigarette smokers (n=130/n=151) | ||
| Only SP tobacco variant | 89 (68.5) | 96 (63.6) |
| Only SP menthol variant | 26 (20) | 33 (21.9) |
| Both SP variants | 15 (11.5) | 22 (14.6) |
| Assessment of SP used at final follow-up interview | ||
| Liking of SP sensory attributes, mean (SD) [95% CI]g | ||
| Taste | ||
| Only SP tobacco variant (n=101/n=112) | 4.8 (1.9), 4.5-5.2 | 4.6 (1.8), 4.3-5 |
| Only SP menthol variant (n=166/n=167) | 5.4 (1.5), 5.2-5.6 | 5.3 (1.5), 5.1-5.5 |
| Both SP variants (n=37/n=59) | 5.2 (1.4), 4.7-5.7 | 5.6 (1.3), 5.3-6 |
| Smell | ||
| Only SP tobacco variant (n=100/n=112) | 5.9 (1.4), 5.6-6.1 | 5.5 (1.7), 5.2-5.9 |
| Only SP menthol variant (n=162/n=163) | 6.2 (1.3), 6-6.4 | 5.9 (1.4), 5.7-6.2 |
| Both SP variants (n=37/n=59) | 5.9 (1.4), 5.5-6.4 | 6.2 (1.2), 5.9-6.5 |
| Aftertaste | ||
| Only SP tobacco variant (n=100/n=112) | 4.8 (1.9), 4.4-5.2 | 4.6 (1.9), 4.2-4.9 |
| Only SP menthol variant (n=165/n=165) | 5.3 (1.7), 5-5.6 | 5.2 (1.7), 4.9-5.4 |
| Both SP variants (n=37/n=58) | 5.2 (1.5), 4.8-5.7 | 5.4 (1.6), 4.9-5.8 |
| Ease of use, mean (SD) [95% CI]h | ||
| Ease of use | 6.4 (1.2), 6.3-6.5 | 6.4 (1.1), 6.3-6.6 |
SP: study product.
Pattern of study product use definitions was based on use at week 8. Switched completely to study product (study product use without cigarettes) was defined as participants who reported using the study product but not smoking cigarettes or using other electronic nicotine delivery system at week 8. Switched completely to electronic nicotine delivery system (study product use and other electronic nicotine delivery system without cigarettes) was defined as participants who reported using the study product and other electronic nicotine delivery system but not smoking cigarettes at week 8. Dual study product use (study product and cigarettes) was defined as participants who reported using the study product and cigarettes. Dual electronic nicotine delivery system use (study product and other electronic nicotine delivery system and cigarettes) was defined as participants who reported using the study product, other electronic nicotine delivery system, and cigarettes at week 8.
ENDS: electronic nicotine delivery systems.
Calculated for participants who used the study product at week 8.
Study product flavor variants used at week 8 were categorized as only tobacco SP variant, only menthol SP variant, or both SP variants.
Study product nonusers are not included in these analyses.
Liking of each sensory attribute was assessed using a 7-point Likert scale ranging from 1 (I don’t like it at all) to 7 (I like it very much); participants could also respond don’t know (not shown) among users of the respective SP variant(s) at week 8.
Ease of use was assessed using a 7-point Likert scale ranging from 1 (Not easy to use at all) to 7 (Very easy to use); participants could also respond don’t know (not shown).