Table 1.
Own-Brand Cigarette | JUUL | IQOS | |||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Pre-Directed | Post-Directed | Pre-Ad Lib | Post-Ad Lib | Pre-Directed | Post-Directed | Pre-Ad Lib | Post-Ad Lib | Pre-Directed | Post-Directed | Pre-Ad Lib | Post-Ad Lib | ||||||||||||||
Outcome Variables | Mean | SD | Mean | SD | Mean | SD | Mean | SD | Mean | SD | Mean | SD | Mean | SD | Mean | SD | Mean | SD | Mean | SD | Mean | SD | Mean | SD | |
Plasma NicotineA | 2.1 | 0.2 | 20.4 | 11.4 | 8.8 | 3.6 | 21.0 | 10.2 | 2.2 | 0.7 | 9.8 | 4.9 | 4.3 | 1.8 | 11.5 | 9.3 | 2.1 | 0.2 | 12.7 | 6.2 | 5.4 | 1.7 | 11.3 | 8.0 | |
COA | 5.2 | 2.4 | 8.7 | 2.5 | 8.8 | 2.8 | 16.6 | 7.0 | 5.5 | 2.4 | 5.1 | 2.3 | 5.3 | 2.4 | 4.7 | 1.9 | 5.3 | 2.0 | 4.9 | 1.8 | 4.6 | 1.8 | 4.3 | 1.4 | |
QSU | |||||||||||||||||||||||||
Factor 1B,C | 24.8 | 8.2 | 13.2 | 10.7 | 21.2 | 8.9 | 11.5 | 10.2 | 24.7 | 7.5 | 20.1 | 9.3 | 21.7 | 9.3 | 17.8 | 10.6 | 25.1 | 8.2 | 16.0 | 9.3 | 20.4 | 8.5 | 14.4 | 9.7 | |
Factor 2C | 11.7 | 8.3 | 6.9 | 7.4 | 9.7 | 7.4 | 5.5 | 7.6 | 10.3 | 8.3 | 8.1 | 7.8 | 9.5 | 7.5 | 6.5 | 7.2 | 12.5 | 8.4 | 6.6 | 7.8 | 9.1 | 8.6 | 6.6 | 8.9 | |
HH | |||||||||||||||||||||||||
Anxious | 46.3 | 32.5 | 24.8 | 30.6 | 22.1 | 22.8 | 19.4 | 27.5 | 42.8 | 31.9 | 24.4 | 31.8 | 20.8 | 30.1 | 20.4 | 27.0 | 44.5 | 34.9 | 28.4 | 33.9 | 17.2 | 27.2 | 28.4 | 32.6 | |
CravingA | 75.2 | 30.7 | 34.9 | 35.0 | 55.2 | 30.5 | 25.5 | 29.2 | 70.5 | 30.9 | 49.3 | 36.0 | 54.0 | 38.0 | 53.9 | 34.9 | 73.5 | 33.5 | 42.9 | 31.8 | 53.8 | 29.9 | 36.2 | 32.1 | |
DepressionC | 21.4 | 28.3 | 9.8 | 16.8 | 11.5 | 21.5 | 8.8 | 13.6 | 15.1 | 20.9 | 8.8 | 16.6 | 8.1 | 17.0 | 8.2 | 16.3 | 20.5 | 26.1 | 15.1 | 22.6 | 10.6 | 20.1 | 11.5 | 21.7 | |
Diff ConcentrateC | 28.2 | 26.4 | 18.5 | 20.4 | 18.1 | 20.8 | 10.4 | 18.1 | 37.6 | 30.1 | 17.3 | 19.9 | 15.5 | 22.5 | 17.8 | 25.8 | 30.0 | 31.9 | 24.4 | 29.9 | 16.8 | 20.6 | 18.9 | 27.0 | |
Drowsy | 35.2 | 25.0 | 28.7 | 26.1 | 24.9 | 24.3 | 23.4 | 26.9 | 33.8 | 28.2 | 21.4 | 24.6 | 25.9 | 31.1 | 25.3 | 27.0 | 31.9 | 33.9 | 29.4 | 26.5 | 23.4 | 24.6 | 27.4 | 29.8 | |
Hunger | 39.9 | 22.7 | 31.9 | 24.4 | 34.8 | 25.9 | 39.8 | 30.7 | 43.2 | 29.8 | 35.6 | 33.3 | 39.5 | 35.9 | 58.4 | 29.0 | 43.0 | 35.5 | 30.2 | 25.5 | 37.7 | 29.0 | 53.2 | 31.9 | |
ImpatientC | 42.1 | 28.3 | 23.9 | 27.3 | 26.9 | 29.3 | 25.5 | 28.2 | 41.0 | 30.6 | 25.9 | 31.0 | 31.4 | 28.9 | 31.8 | 30.5 | 51.4 | 31.0 | 25.1 | 30.9 | 29.7 | 30.3 | 27.2 | 27.0 | |
IrritableC | 37.4 | 31.0 | 14.9 | 17.2 | 14.1 | 16.0 | 14.6 | 22.0 | 34.5 | 31.1 | 18.4 | 22.1 | 15.4 | 22.3 | 15.1 | 26.4 | 38.7 | 33.3 | 19.8 | 26.3 | 16.8 | 21.0 | 16.8 | 24.1 | |
RestlessA | 40.8 | 29.4 | 19.7 | 24.8 | 27.7 | 27.2 | 21.5 | 28.1 | 30.2 | 25.5 | 26.9 | 25.9 | 17.9 | 25.7 | 24.7 | 27.6 | 38.9 | 31.8 | 19.7 | 24.6 | 33.4 | 31.4 | 27.1 | 28.4 | |
Sweets | 24.2 | 30.7 | 16.8 | 21.4 | 18.8 | 25.8 | 17.9 | 21.3 | 27.4 | 33.3 | 20.3 | 27.2 | 20.7 | 28.1 | 17.4 | 24.0 | 24.8 | 28.3 | 16.4 | 25.7 | 23.8 | 27.9 | 20.5 | 27.0 | |
UrgeA | 76.5 | 25.2 | 39.2 | 34.8 | 54.4 | 27.6 | 24.9 | 25.7 | 67.2 | 29.9 | 48.8 | 31.9 | 46.9 | 33.3 | 50.0 | 31.1 | 74.7 | 31.5 | 46.2 | 29.5 | 56.9 | 27.8 | 38.0 | 31.8 | |
DEV | |||||||||||||||||||||||||
Awake | 40.9 | 31.7 | 45.1 | 31.3 | 33.8 | 29.9 | 28.1 | 29.6 | 36.5 | 30.6 | 34.5 | 27.4 | |||||||||||||
Calm | 60.9 | 36.0 | 60.7 | 35.3 | 47.9 | 31.9 | 46.6 | 29.7 | 54.4 | 31.5 | 43.2 | 34.5 | |||||||||||||
Concentrate | 43.8 | 30.8 | 42.0 | 34.3 | 24.5 | 26.3 | 27.5 | 26.3 | 38.5 | 33.7 | 27.8 | 27.1 | |||||||||||||
Dizzy | 40.7 | 33.4 | 30.1 | 36.2 | 33.7 | 33.5 | 19.4 | 27.2 | 36.4 | 34.8 | 26.9 | 25.8 | |||||||||||||
PleasantB | 81.4 | 29.8 | 81.9 | 24.9 | 50.4 | 31.6 | 50.6 | 31.2 | 58.8 | 36.0 | 58.9 | 34.4 | |||||||||||||
Reduced Hunger | 41.9 | 29.9 | 33.0 | 27.7 | 35.2 | 27.4 | 37.1 | 31.0 | 29.2 | 28.8 | 34.3 | 26.1 | |||||||||||||
Right Now | 62.8 | 37.7 | 44.1 | 37.7 | 45.4 | 32.7 | 35.5 | 29.1 | 47.2 | 39.1 | 37.5 | 33.5 | |||||||||||||
SatisfyB | 84.3 | 24.4 | 83.7 | 24.5 | 47.0 | 33.2 | 46.5 | 31.5 | 58.8 | 30.9 | 58.8 | 33.3 | |||||||||||||
Sick | 4.1 | 7.5 | 2.6 | 5.2 | 8.1 | 14.2 | 7.8 | 14.4 | 9.5 | 19.0 | 10.5 | 16.8 | |||||||||||||
Taste goodB | 77.7 | 29.5 | 74.0 | 32.1 | 50.5 | 32.6 | 51.2 | 30.7 | 54.6 | 36.4 | 49.8 | 35.7 |
Means that are significantly different from baseline are presented in bold. Items that are significantly different from own-brand cigarettes at that time point are underlined. Note: CO, expired air carbon monoxide; QSU, Tiffany-Drobes Questionnaire of Smoking Urges-Brief; HH, Hughes-Hatsukami Withdrawal VAS Scale; DEV, Direct Effects of Vaping Questionnaire;
significant interaction,
significant main effect of condition, and
significant main effect of time.