Electronic nicotine delivery system (ENDS) use characteristics
| ENDS users (n=27) | Dual users (n=28) | |
| Age of ENDS initiation, median | 28.5 | 35.0 |
| Age of regular ENDS initiation, median | 30.0 | 36.5 |
| Duration of ENDS use, median | 2.0 | 1.0 |
| Type of ENDS: tank or vapour system, % | 88.9 | 92.9 |
| Type of ENDS: cig-a-like, % | 7.4 | 21.4 |
| Type of ENDS: e-cigar, % | 0.0 | 3.6 |
| Type of ENDS: e-pipe, % | 3.7 | 0.0 |
| Type of ENDS: e-hookah, % | 0.0 | 0.0 |
| ENDS is refillable, % | 88.9 | 100.0 |
| ENDS is rechargeable, % | 100.0 | 96.4 |
| ENDS uses cartridges, % | 29.6 | 33.3 |
| Nicotine concentration, % | ||
| 0 mg | 0.0 | 7.7 |
| 1–5 mg | 52.0 | 30.8 |
| 6–12 mg | 28.0 | 30.8 |
| 13–17 mg | 8.0 | 3.9 |
| 18–24 mg | 8.0 | 23.1 |
| 25 mg or more | 4.0 | 3.9 |
| Tobacco flavour, % | 18.5 | 39.3 |
| Menthol flavour, % | 14.8 | 3.6 |
| Clove or spice, % | 7.4 | 17.9 |
| Fruit, % | 66.7 | 53.6 |
| Chocolate, % | 7.4 | 14.3 |
| Alcoholic drink, % | 3.6 | 0.0 |
| Candy/sweets, % | 51.9 | 57.1 |
| Other flavour, % | 11.1 | 21.4 |
| Number of vape sessions in lifetime*, % | ||
| 100 or less | 33.3 | 52.0 |
| 101–200 | 12.5 | 8.0 |
| 201–300 | 8.3 | 8.0 |
| 301–400 | 12.5 | 8.0 |
| Over 400 | 33.3 | 24.0 |
| Average number of vape sessions per day*, % | ||
| Less than 10 sessions | 28.0 | 52.0 |
| 10–19 sessions | 44.0 | 20.0 |
| 20–30 sessions | 16.0 | 8.0 |
| Over 30 | 12.0 | 20.0 |
| Average number of puffs per vape session*, % | ||
| Under 5 | 14.8 | 23.1 |
| 5–10 | 55.6 | 46.2 |
| More than 10 | 29.6 | 30.8 |
| Average length of vape session*, % | ||
| 1–2 min | 33.3 | 25.0 |
| 3–5 min | 40.7 | 28.6 |
| 6–10 min | 18.5 | 25.0 |
| Over 10 min | 7.1 | 21.4 |
*Provided by the Ontario Tobacco Research Center.