Table 1.
Participant Demographics
| Participant characteristics | % or Mean (SD) |
|---|---|
| Male sex | 52.4% |
| Age | 40.84 (12.25) |
| Non-Hispanic White | 62.8% |
| Currently smoking cigarettes | 89.1% |
| Successful quit smoking attempt using E-cigarettes | 47.0% |
| Nicotine E-liquid use | 79.8% |
| Past-month vaping frequency (# days out of 30) | 15.98 (10.69) |
| Any past-month vaping | 85.4% |
| Daily vaping | 22.4% |
| Total vaping duration | 6.03 (2.45) |
| E-cigarette dependence | 1.91 (10.8) |
| Withdrawal | 24.52 (9.77) |
| MECEQ (original five-factor model) | |
| Satisfaction | 4.73 (1.63) |
| Psychological Reward | 4.18 (1.69) |
| Respiratory Tract | 4.16 (1.97) |
| Craving Reduction | 4.46 (1.83) |
| Aversion | 2.51 (1.86) |
| MECEQ (revised four-factor model) | |
| Stimulant Effects | 3.98 (1.80) |
| Positive Reinforcement | 4.56 (1.67) |
| Negative Reinforcement | 4.47 (1.68) |
| Aversion | 2.51 (1.86) |