Model 1 OR n = 961 | 95% CI | Model 2 OR n = 956 | 95% CI | Model 3 OR n = 956 | 95% CI | Model 4 OR n = 598 | 95% CI | |
---|---|---|---|---|---|---|---|---|
Sex (ref:male) | 1.04 | 0.74–1.48 | 1.06 | 0.75–1.51 | 1.10 | 0.78–1.57 | 1.42 | 0.90–2.23 |
Index of disadvantage (ref: most disadvantage) | ||||||||
2nd quintile | 0.76 | 0.42–1.39 | 0.80 | 0.44–1.44 | 0.81 | 0.44–1.47 | 0.88 | 0.41–1.89 |
3rd quintile | 0.80 | 0.48–1.33 | 0.79 | 0.47–1.33 | 0.80 | 0.47–1.37 | 0.70 | 0.36–1.35 |
4th quintile | 0.70 | 0.42–1.14 | 0.66 | 0.42–1.04 | 0.67 | 0.42–1.06 | 0.89 | 0.53–1.49 |
5th quintile | 0.66 | 0.40–1.08 | 0.66 | 0.41–1.06 | 0.66 | 0.41–1.07 | 0.49* | 0.25–0.97 |
Available spending money per week (ref: none) | ||||||||
$1–$40 | 2.13* | 1.19–3.82 | 2.05* | 1.15–3.63 | 2.01* | 1.13–3.57 | 1.37 | 0.68–2.76 |
$41–$80 | 3.71** | 1.86–7.43 | 3.65** | 1.80–7.42 | 3.64** | 1.77–7.53 | 2.05 | 0.75–5.63 |
$81–$120 | 5.76*** | 3.28–10.12 | 5.52*** | 3.27–9.32 | 5.22*** | 3.11–8.77 | 2.18 | 0.91–5.24 |
$121 and over | 4.31*** | 2.32–7.99 | 4.47*** | 2.40–8.32 | 4.43*** | 2.41–8.15 | 1.81 | 0.75–4.36 |
Self-reported ability at school (ref: a lot above average) | ||||||||
Above average | 1.79 | 0.80–3.99 | 1.72 | 0.78–3.79 | 1.74 | 0.79–3.84 | 2.38 | 0.85–6.64 |
Average | 2.27* | 1.13–4.54 | 1.98* | 1.01–3.86 | 1.92 | 0.98–3.74 | 1.92 | 0.70–5.24 |
Below average | 5.82*** | 2.41–14.02 | 4.47** | 1.80–11.10 | 4.29** | 1.73–10.66 | 4.33* | 1.20–15.67 |
A lot below average | 12.45* | 1.76–87.91 | 6.09 | 0.75–49.31 | 5.94 | 0.69–51.48 | 0.42 | 0.05–3.56 |
Smoked in last week (ref: no) | 9.91*** | 3.96–24.81 | 9.96*** | 3.96–25.08 | 10.07** | 2.49–40.68 | ||
Alcohol and cancer (ref: very/important) | 1.43** | 1.05–1.94 | 1.65* | 0.99–2.74 | ||||
Friends approval (ref: no) | 6.25*** | 4.22–9.27 | ||||||
Parental disapproval (ref: no) | 0.56** | 0.37–0.84 |