Background
Methods
Sampling and recruitment
Tobacco use
Student-level characteristics
Senior student tobacco use rate
Data analysis
Results
Sample characteristics
Region | Gender | Grade, n (%) | |||
---|---|---|---|---|---|
9 | 10 | 11 | 12 | ||
Atlantica | Male | 338 (4.4) | 1181 (15.3) | 1162 (15.1) | 1060 (13.8) |
Female | 381 (5.0) | 1263 (16.4) | 1243 (16.2) | 1070 (13.9) | |
Quebecb | Male | 277 (18.4) | 223 (14.9) | 240 (16.0) | n/a |
Female | 292 (19.4) | 233 (15.5) | 237 (15.8) | n/a | |
Ontario | Male | 894 (14.1) | 767 (12.1) | 730 (11.5) | 665 (10.5) |
Female | 956 (15.0) | 881 (13.9) | 793 (12.5) | 670 (10.5) | |
Prairiesc | Male | 1034 (11.6) | 1367 (15.4) | 1174 (13.2) | 943 (10.6) |
Female | 910 (10.3) | 1365 (15.4) | 1160 (13.1) | 929 (10.5) | |
British Columbia | Male | 680 (13.5) | 753 (14.9) | 667 (13.2) | 586 (11.6) |
Female | 622 (12.3) | 621 (12.3) | 617 (12.2) | 511 (10.1) | |
TOTAL
| Male | 3223 (10.9) | 4291 (14.6) | 3973 (13.5) | 3254 (11.0) |
Female | 3161 (10.7) | 4363 (14.8) | 4050 (13.7) | 3180 (10.8) |
Descriptive statistics for senior student tobacco use rates
Tobacco product | Percent of schools with senior current usersa | Senior student tobacco use rate (%)b | ||
---|---|---|---|---|
Mean (Std. Dev.) | Minimum | Maximum | ||
Manufactured cigarettes | 91.3 | 15.6 (±11.0) | 1.9 | 100.0 |
Little cigars or cigarillos | 89.9 | 11.7 (±6.9) | 1.7 | 33.3 |
Cigars | 79.0 | 9.7 (±10.5) | 1.0 | 100.0 |
Roll-your-own cigarettes | 76.1 | 7.1 (±4.5) | 0.5 | 20.4 |
Smokeless tobacco | 60.1 | 5.9 (±5.0) | 0.2 | 27.3 |
Hookah | 66.7 | 5.5 (±4.0) | 0.7 | 28.6 |
Descriptive statistics for current tobacco product use among junior students
Parameters | Manufactured cigarettes | Little cigars or cigarillos | Cigars | Roll-your-own cigarettes | Smokeless tobacco | Hookah | |
---|---|---|---|---|---|---|---|
% of students | |||||||
Gender | Female | 10.5 | 4.0 | 2.6 | 2.4 | 0.7 | 1.7 |
Male | 11.3 | 7.6 | 5.5 | 4.2 | 2.6 | 3.2 | |
Grade | 9 | 9.4 | 4.9 | 3.6 | 2.8 | 1.3 | 1.8 |
10 | 12.3 | 6.7 | 4.5 | 3.9 | 2.0 | 3.0 |
Between school variability in ATP use
Alternative tobacco product | σ2μ0a | Intraclass correlation coefficient |
---|---|---|
Cigarillos or little cigars | 0.613 (0.116) | 0.157 |
Cigars | 0.540 (0.118) | 0.141 |
Roll-your-own cigarettes | 0.945 (0.192) | 0.223 |
Smokeless tobacco | 1.391 (0.318) | 0.297 |
Hookah | 0.659 (0.157) | 0.167 |
Multilevel regression model results for the association between the senior student tobacco use rate and current ATP use among junior students
Tobacco product | Relative odds ratio (95% CI)a | p-value |
---|---|---|
Manufactured cigarettes | 1.04 (1.01, 1.06) | 0.002 |
Little cigars or cigarillos | 1.01 (0.98, 1.04) | 0.526 |
Cigars | 1.01 (0.97, 1.05) | 0.656 |
Roll-your-own cigarettes | 1.03 (0.95, 1.11) | 0.491 |
Smokeless tobacco | 1.14 (1.06, 1.24) | <0.001 |
Hookah | 1.09 (1.03, 1.14) | 0.003 |