Odds of having ever smoked in school and home environments
| Model 1 | Model 2 | Model 3 | ||||
|---|---|---|---|---|---|---|
| Home | School | Home | School | Home | School | |
| OR 95% CI | OR 95% CI | OR 95% CI | OR 95% CI | OR 95% CI | OR 95% CI | |
| Tobacco outlet density | ||||||
| 1 (density=0) | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 |
| 2 (lowest density) | 1.20 (1.05 to 1.37)* | 0.80 (0.48 to 1.32) | 1.19 (1.03 to 1.38)* | 0.72 (0.51 to 1.00) | 1.42 (1.20 to 1.67)* | 0.70 (0.53 to 0.93)* |
| 3 | 1.38 (1.21 to 1.57)* | 0.72 (0.43 to 1.19) | 1.22 (1.05 to 1.41)* | 0.64 (0.46 to 0.90)* | 1.45 (1.22 to 1.71)* | 0.63 (0.47 to 0.83)* |
| 4 | 1.53 (1.35 to 1.74)* | 0.83 (0.50 to 1.38) | 1.23 (1.05 to 1.43)* | 0.67 (0.48 to 0.94)* | 1.42 (1.19 to 1.69)* | 0.63 (0.48 to 0.84)* |
| 5 (highest density) | 1.67 (1.46 to 1.90)* | 0.82 (0.50 to 1.35) | 1.31 (1.13 to 1.52)* | 0.68 (0.49 to 0.95)* | 1.53 (1.27 to 1.85)* | 0.66 (0.50 to 0.86)* |
| Trend | 1.13 (1.10 to 1.16)* | 1.01 (0.96 to 1.06) | 1.05 (1.02 to 1.09)* | 0.97 (0.92 to 1.02) | 1.06 (1.02 to 1.11)* | 0.96 (0.91 to 1.01) |
| Class year | ||||||
| Secondary 2 (age 13) | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 |
| Secondary 4 (age 15) | 3.55 (3.24 to 3.88)* | 3.52 (3.22 to 3.85)* | 3.84 (3.49 to 4.24)* | 3.84 (3.49 to 4.23)* | 3.85 (3.50 to 4.25)* | 3.86 (3.51 to 4.26)* |
| Sex | ||||||
| Female | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 |
| Male | 1.11 (1.02 to 1.20)* | 1.10 (1.02 to 1.20)* | 1.15 (1.05 to 1.26)* | 1.14 (1.04 to 1.25)* | 1.14 (1.04 to 1.25)* | 1.14 (1.04 to 1.25)* |
| Ethnicity | ||||||
| White | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 |
| Non-white | 1.10 (0.95 to 1.27) | 1.12 (0.97 to 1.30) | 1.18 (0.99 to 1.41) | 1.20 (1.00 to 1.43)* | 1.22 (1.02 to 1.45)* | 1.22 (1.02 to 1.45)* |
| Free school meals | ||||||
| Yes | 1.00 | 1.00 | 1.00 | 1.00 | ||
| No | 0.70 (0.61 to 0.80)* | 0.69 (0.60 to 0.78)* | 0.72 (0.63 to 0.83)* | 0.72 (0.63 to 0.82)* | ||
| Self-perceived family wealth | ||||||
| Very/quite well off | 1.00 | 1.00 | 1.00 | 1.00 | ||
| Average—not at all well off | 1.08 (1.01 to 1.17)* | 1.08 (1.01 to 1.17)* | 1.07 (0.99 to 1.15) | 1.07 (0.99 to 1.15) | ||
| Family structure | ||||||
| Single parent | 1.00 | 1.00 | 1.00 | 1.00 | ||
| Step-parent (and one parent) | 1.04 (0.91 to 1.20) | 1.04 (0.90 to 1.19) | 1.04 (0.91 to 1.20) | 1.03 (0.90 to 1.19) | ||
| Both parents | 0.65 (0.59 to 0.73)* | 0.65 (0.58 to 0.72)* | 0.65 (0.59 to 0.73)* | 0.65 (0.58 to 0.72)* | ||
| Other | 1.36 (1.06 to 1.74)* | 1.34 (1.04 to 1.72)* | 1.32 (1.03 to 1.70)* | 1.30 (1.01 to 1.67)* | ||
| Parental smoking status | ||||||
| No parent smokes | 1.00 | 1.00 | 1.00 | 1.00 | ||
| At least one parent smokes daily | 2.95 (2.69 to 3.23)* | 3.00 (2.74 to 3.28)* | 2.83 (2.59 to 3.10)* | 2.85 (2.60 to 3.11)* | ||
| Urban/rural status | ||||||
| Urban | 1.00 | 1.00 | ||||
| Rural | 1.43 (1.27 to 1.62)* | 1.23 (1.09 to 1.37)* | ||||
| Carstairs quintile | ||||||
| 1 (least deprived) | 1.00 | 1.00 | ||||
| 2 | 1.11 (0.94 to 1.30) | 1.13 (0.97 to 1.32) | ||||
| 3 | 1.27 (1.07 to 1.49)* | 1.31 (1.12 to 1.54)* | ||||
| 4 | 1.32 (1.12 to 1.56)* | 1.40 (1.20 to 1.64)* | ||||
| 5 (most deprived) | 1.43 (1.23 to 1.67)* | 1.54 (1.31 to 1.79)* | ||||
95% CIs in brackets, *p<0.05.