Table 2

Electronic nicotine delivery system (ENDS) use characteristics

ENDS users
(n=27)
Dual users
(n=28)
Age of ENDS initiation, median28.535.0
Age of regular ENDS initiation, median30.036.5
Duration of ENDS use, median2.01.0
Type of ENDS: tank or vapour system, %88.992.9
Type of ENDS: cig-a-like, %7.421.4
Type of ENDS: e-cigar, %0.03.6
Type of ENDS: e-pipe, %3.70.0
Type of ENDS: e-hookah, %0.00.0
ENDS is refillable, %88.9100.0
ENDS is rechargeable, %100.096.4
ENDS uses cartridges, %29.633.3
Nicotine concentration, %
 0 mg0.07.7
 1–5 mg52.030.8
 6–12 mg28.030.8
 13–17 mg8.03.9
 18–24 mg8.023.1
 25 mg or more4.03.9
Tobacco flavour, %18.539.3
Menthol flavour, %14.83.6
Clove or spice, %7.417.9
Fruit, %66.753.6
Chocolate, %7.414.3
Alcoholic drink, %3.60.0
Candy/sweets, %51.957.1
Other flavour, %11.121.4
Number of vape sessions in lifetime*, %
 100 or less33.352.0
 101–20012.58.0
 201–3008.38.0
 301–40012.58.0
 Over 40033.324.0
Average number of vape sessions per day*, %
 Less than 10 sessions28.052.0
 10–19 sessions44.020.0
 20–30 sessions16.08.0
 Over 3012.020.0
Average number of puffs per vape session*, %
 Under 514.823.1
 5–1055.646.2
 More than 1029.630.8
Average length of vape session*, %
 1–2 min33.325.0
 3–5 min40.728.6
 6–10 min18.525.0
 Over 10 min7.121.4
  • *Provided by the Ontario Tobacco Research Center.