Table 5.
Smoking intensity models
| Regression variables | Grades 7–9 | Grades 10–12 | All |
|---|---|---|---|
| Estimate (S.E.) | Estimate (S.E.) | Estimate (S.E.) | |
| Female | − 0.37*** (0.04) | − 0.15*** (0.02) | − 0.20*** (0.02) |
| Caucasian | − 0.06 (0.07) | 0.08*** (0.02) | 0.08*** (0.02) |
| Log (cigarette prices) | − 1.93*** (0.19) | − 0.76 *** (0.12) | − 1.02*** (0.14) |
| Weekly pocket money | 0.02** (0.01) | 0.06*** (0.01) | 0.06*** (0.01) |
| Province (British Columbia as reference) | |||
| Ontario | − 0.42*** (0.08) | 0.21*** (0.05) | 0.10* (0.05) |
| Othersa | − 0.19*** (0.05) | 0.21*** (0.04) | 0.12*** (0.04) |
| School performance (level 1 and 2 as reference) | |||
| Level 3–4 | 0.15* (0.08) | − 0.33*** (0.03) | − 0.21*** (0.03) |
| Level 3 | 0.04 (0.06) | − 0.21*** (0.04) | − 0.15 *** (0.03) |
| Self-esteem score ≤ 8 | − 0.31*** (0.05) | 0.01 (0.02) | − 0.08*** (0.02) |
| Frequency of having 5 drinks of alcohol or more on one occasion in the last 12 months (never as reference) | |||
| Daily | 0.12* (0.06) | − 0.01 (0.05) | − 0.02 (0.05) |
| 1–5 times a week | − 0.03 (0.06) | 0.05 (0.05) | 0.01 (0.05) |
| 1–3 times a month | 0.48*** (0.06) | 0.43*** (0.04) | 0.42*** (0.04) |
| Less than once a month | 1.12*** (0.17) | 0.94*** (0.04) | 0.95*** (0.06) |
| Missing school days due to health (6 or more days as reference) | |||
| No missing school days | − 0.13* (0.07) | − 0.23*** (0.03) | − 0.24*** (0.02) |
| 1–5 days | − 0.21*** (0.07) | − 0.23*** (0.04) | − 0.26 *** (0.04) |
| Has home smoking ban | 0.05 (0.05) | − 0.28*** (0.03) | − 0.18*** (0.02) |
| No parent/guardian smokes | − 0.40*** (0.05) | − 0.21*** (0.03) | − 0.25*** (0.02) |
| No one sibling smokes | − 0.25*** (0.06) | − 0.07*** (0.02) | − 0.11*** (0.02) |
| No one close friend smokes | 0.03 (0.11) | − 0.09*** (0.05) | − 0.09** (0.05) |
| School attachment (strongly agree/agree) | 0.04 (0.03) | − 0.16*** (0.03) | − 0.13*** (0.02) |
| Daily physical activity < 1 h | − 0.22*** (0.05) | − 0.01 (0.02) | − 0.07** (0.02) |
| Fruit and vegetable servings ≤ 6 | 024*** (0.07) | 0.07** (0.03) | 0.12 *** (0.03) |
| Price elasticity | − 1.93 | − 0.76 | − 1.02 |
| Income elasticity | 0.02 | 0.06 | 0.06 |
| Weighted observations | 19,338 | 64,297 | 83,635 |
Data source: 2012/13 Canadian Youth Smoking Survey
*significance at 10% level; **significance at 5% level; ***significance at 1% level
aIncluding Newfoundland and Labrador, Prince Edward Island, Nova Scotia, New Brunswick, Quebec, Saskatchewan, Alberta