Table 3.

Multivariate analysis of the associations between related factors and the risk of adolescent current smoking

Variables	B	SE	OR (95% CI)	P value
Gender
Girls			1.000
Boys	0.443	0.224	1.557(1.004–2.415)	0.048
Age
≤ 13			1.000
14–16	0.706	0.394	2.026(0.936–4.385)	0.073
> 16	0.964	0.397	2.623(1.205–5.709)	0.015
Parents smoking
No			1.000
One parent	0.491	0.202	1.634(1.099–2.428)	0.015
Both	1.677	0.479	5.348(2.092–13.672)	< 0.001
Unknown	1.406	0.408	4.078(1.834–9.066)	0.001
Frequency of teachers smoking in schools
Never			1.000
sometimes	0.399	0.240	1.490(0.932–2.385)	0.096
Almost every day	1.062	0.281	2.893(1.669–5.013)	< 0.001
Unknown	-0.004	0.317	0.996(0.535–1.853)	0.990
Friends smoking
No			1.000
Yes	2.397	0.298	10.991(6.126–19.717)	< 0.001
Exposed to tobacco marketing
No			1.000
Yes	1.466	0.190	4.352(2.996–6.321)	< 0.001
Considered smoking more attractive
No difference			1.000
Yes	0.739	0.257	2.094(1.266–3.464)	0.004
No	-0.298	0.226	0.742(0.476–1.156)	0.187
Perceived comfortable smoking in social occasions
No difference			1.000
Yes	1.421	0.241	4.140(2.583–6.633)	< 0.001
No	-1.605	0.233	0.201(0.127–0.317)	< 0.001