Characteristics | Unadjusted odds ratios [95% CI] | Adjusted odds ratios [95% CI] |
---|---|---|
Age (years) | ||
=<13 | 1.00 | 1.00 |
14 | 0.97 [0.69–1.37] | 0.79 [0.50–1.25] |
15 | 1.21 [0.86–1.71] | 1.08 [0.68–1.73] |
> = 16 | 1.51 [1.00–2.29] | 0.92 [0.53–1.62] |
Gender | ||
Female | 1.00 | 1.00 |
Male | 2.04 [1.56–2.68] | 1.55 [1.09–2.19] |
Parental smoking status | ||
None | 1.00 | 1.00 |
One or both parents smokers | 2.38 [1.80–3.16] | 1.75 [1.23–2.50] |
Best friend smokers | ||
None | 1.00 | 1.00 |
Some | 5.38 [3.80–7.61] | 4.38 [2.93–6.56] |
Most or all | 21.99 [13.99–34.57] | 14.94 [8.61–25.92] |
Perception that smoking is harmful | ||
No | 1.00 | 1.00 |
Yes | 0.83 [0.57–1.23] | 0.95 [0.57–1.58] |