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. 2010 Dec 8;10:758. doi: 10.1186/1471-2458-10-758

Table 3.

Odds ratios (OR) and their 95% confidence intervals (CI) of tobacco use by measures of adolescents' individual social position, statistically significant odds ratios in bold.

Indicator of individual social position Tawa use Smoking
Model 1 Model 2 Model 3 Model 1 Model 2 Model 3
OR (95% CI) OR (95% CI) OR (95% CI) OR (95% CI) OR (95% CI) OR (95% CI)
School performance * * * *
Above average 1.0 1.0
Average 0.4 (0.1-1.3)
P = 0.149
0.6 (0.2-1.4)
P = 0.244
Below average 0.6 (0.4-1.2)
P = 0.151
0.7 (0.4-1.2)
P = 0.202
Plans after graduation
Continue school 1.0 1.0 1.0 1.0 1.0 1.0
Not continue school 3.7 (2.0-6.7)
P < 0.001
3.2 (1.7-6.3)
P < 0.001
2.7 (1.3-5.6)
P < 0.001
4.0 (2.5-7.0)
P < 0.001
3.6 (1.6-6.8)
P < 0.001
3.4 (1.6-6.8)
P < 0.001

Model 1 = socioeconomic measure + age + gender (bivariate).

Model 2 = age + gender + material affluence scale + family structure + father's education.

Model 3 = age + gender + material affluence scale + family structure + father's education + paternal smoking +maternal smoking.

* Not included in the analysis.