E-liquid | n | Used ≥1 other nicotine-containing substancea in past year % | No. other nicotine-containing substances in past yeara mean (sd) | Used conventional cigarettes in past year % | Perceived nicotine dependence % | Craving % | Withdrawal symptomsb % |
---|---|---|---|---|---|---|---|
Total | 149 | 82.6 | 1.6 (1.0) | 72.5 | 60.8 | 57.8 | 58.1 |
One e-liquid | 95 | 75.8 | 1.3 (1.0) | 64.2 | 54.3 | 52.7 | 56.6 |
With nicotine only | 35 | 91.4 | 1.5 (0.9) | 88.6 | 79.4 | 82.4 | 74.3 |
Without nicotine only | 13 | 76.9 | 1.2 (1.0) | 53.8 | 30.8 | 25.0 | 25.0 |
For cannabis only | 47 | 63.8 | 1.3 (1.1) | 48.9 | 42.6 | 38.3 | 47.5 |
Two e-liquids | 41 | 95.1 | 1.9 (0.8) | 87.8 | 68.3 | 65.9 | 60.0 |
With and without nicotine | 19 | 100.0 | 1.9 (0.7) | 94.7 | 84.2 | 78.9 | 84.2 |
With nicotine and for cannabis | 8 | 100.0 | 2.0 (0.9) | 100.0 | 87.5 | 87.5 | 62.5 |
Without nicotine and for cannabis | 14 | 85.7 | 1.7 (1.0) | 71.4 | 35.7 | 35.7 | 23.1 |
Three e-liquids | 13 | 92.3 | 2.2 (0.9) | 84.6 | 84.6 | 69.2 | 61.5 |