Model 1 OR n = 950 | 95% CI | Model 2 OR n = 945 | 95% CI | Model 3 OR n = 945 | 95% CI | Model 4 OR n = 525 | 95% CI | |
---|---|---|---|---|---|---|---|---|
Sex (ref:male) | 0.68 | 0.35–1.33 | 0.64 | 0.33–1.25 | 0.62 | 0.31–1.22 | 0.49 | 0.21–1.15 |
Index of disadvantage (ref: most disadvantage) | ||||||||
2nd quintile | 0.54 | 0.11–2.73 | 0.60 | 0.12–3.06 | 0.60 | 0.12–2.99 | 0.07 | 0.00–1.22 |
3rd quintile | 1.25 | 0.59–2.66 | 1.46 | 0.71–3.02 | 1.46 | 0.70–3.04 | 1.10 | 0.46–2.62 |
4th quintile | 0.94 | 0.40–2.20 | 0.93 | 0.39–2.21 | 0.95 | 0.40–2.25 | 1.50 | 0.31–7.40 |
5th quintile | 1.35 | 0.70–2.61 | 1.61 | 0.85–3.02 | 1.62 | 0.87–3.01 | 0.63 | 0.19–2.13 |
Available spending money per week (ref: none) | ||||||||
$1–$40 | 1.28 | 0.69–2.37 | 1.34 | 0.71–2.55 | 1.36 | 0.72–2.58 | 3.18 | 0.70–14.47 |
$41–$80 | 3.52* | 1.13–10.97 | 3.82* | 1.23–11.83 | 3.76* | 1.21–11.72 | 9.10* | 1.72–48.04 |
$81–$120 | 4.12* | 1.11–15.26 | 3.36 | 0.75–15.12 | 3.30 | 0.78–13.96 | 13.14** | 2.36–73.31 |
$121 and over | 1.63 | 0.31–8.51 | 1.72 | 0.31–9.59 | 1.77 | 0.33–9.60 | 3.73 | 0.26–53.65 |
Self-reported ability at school (ref: a lot above average) | ||||||||
Above average | 0.36 | 0.09–1.38 | 0.32 | 0.08–1.18 | 0.31 | 0.09–1.16 | 0.16* | 0.03–0.74 |
Average | 0.61 | 0.17–2.20 | 0.57 | 0.17–1.97 | 0.58 | 0.17–2.01 | 0.45 | 0.10–2.09 |
Below average | 1.17 | 0.26–5.31 | 0.91 | 0.22–3.76 | 0.92 | 0.22–3.92 | 0.84 | 0.17–4.27 |
A lot below average | 4.15 | 0.29–59.97 | 1.34 | 0.16–11.52 | 1.33 | 0.16–11.44 | 0.66 | 0.04–9.69 |
Smoked in last week (ref: no) | 10.33** | 2.87–37.16 | 10.64** | 3.02–37.46 | 15.04* | 1.97–114.79 | ||
Alcohol and cancer (ref: very/important) | 0.77 | 0.41–1.44 | 0.42* | 0.18–0.97 | ||||
Friends approval (ref: no) | 6.02** | 1.91–18.93 | ||||||
Parental disapproval (ref: no) | 0.25** | 0.11–0.55 |