Distribution of last substance vaped by frequency of vaporiser use and grade (estimates are percentages, and SEs are in parentheses)
| Used vaporiser in past 30 days | ||||
|---|---|---|---|---|
| Any lifetime use of vaporiser | Any use | 1–5 times | 6+ times | |
| Grade 12 | ||||
| Unweighted n | n=1420 | n=625 | n=410 | n=215 |
| % of grade, weighted | 34.44 (1.17) | 15.58 (0.90) | 10.54 (0.67) | 5.03 (0.44) |
| Just flavouring | 64.73 (1.60) | 59.24 (2.05) | 66.26 (2.57) | 44.55 (4.28)* |
| Nicotine | 22.16 (1.49) | 30.72 (2.26) | 22.73 (2.78) | 47.48 (4.49)* |
| Marijuana | 6.12 (0.82) | 5.23 (1.16) | 5.01 (1.36) | 5.69 (1.86) |
| Don't know | 6.33 (0.74) | 4.04 (0.75) | 5.14 (1.04) | 1.74 (1.05) |
| Other | 0.71 (0.23) | 0.76 (0.34) | 0.86 (0.47) | 0.55 (0.39) |
| Grade 10 | ||||
| Unweighted n | n=1649 | n=704 | n=436 | n=268 |
| % of grade, weighted | 32.02 (1.12) | 13.75 (0.79) | 8.39 (0.52)† | 5.37 (0.49) |
| Just flavouring | 65.24 (1.63) | 59.49 (2.51) | 65.57 (2.71) | 49.98 (4.16)* |
| Nicotine | 19.87 (1.30) | 27.39 (2.30) | 18.98 (2.28) | 40.53 (4.23)* |
| Marijuana | 6.61 (0.79) | 8.75 (1.50) | 9.87 (2.39) | 6.98 (1.70) |
| Don't know | 7.65 (0.87) | 3.70 (0.84) | 5.03 (1.31) | 1.62 (0.79) |
| Other | 0.63 (0.26) | 0.67 (0.38) | 0.54 (0.40) | 0.89 (0.76) |
| Grade 8 | ||||
| Unweighted n | n=968 | n=372 | n=239 | n=133 |
| % of grade weighted | 21.07 (0.94)†‡ | 7.75 (0.58)†‡ | 5.08 (0.35)†‡ | 2.67 (0.37)†‡ |
| Just flavouring | 65.96 (2.05) | 62.66 (3.05) | 64.26 (3.75) | 59.61 (5.37)† |
| Nicotine | 13.23 (1.48)†‡ | 16.23 (2.51)†‡ | 14.49 (2.87) | 19.52 (4.82)†‡ |
| Marijuana | 5.80 (0.89) | 10.59 (2.23)† | 9.71 (2.62) | 12.26 (3.61) |
| Don't know | 13.71 (1.44)†‡ | 7.88 (1.25)†‡ | 8.43 (1.68) | 6.84 (2.00)†‡ |
| Other | 1.30 (0.46) | 2.65 (1.16)† | 3.11 (1.67) | 1.77 (0.99) |
Only the categories in the last two columns are mutually exclusive.
*Significantly different from group that vaped 1–5 times in past 30 days, p<0.05.
†Significantly differs from the percentage in 12th grade, p<0.05.
‡Significantly differs from the percentage in 10th grade, p<0.05.