Table 3.
Results of automatic (step-up) binary logistic regression analyses with tobacco use disorder (TUD) as dependent variable (never-smokers as reference group) and the STin2.12 allele (regression 1) or STin.10/10 genotype (regression 2) and the other listed variables as explanatory variables
| Variables | Wald | df | p value | OR | 95% CI | |
|---|---|---|---|---|---|---|
| Regression 1 |
STin2.12 allele |
8.68 |
1 |
0.003 |
2.68 |
1.39 – 5.18 |
| |
Mood disorders |
6.51 |
1 |
0.011 |
1.97 |
1.17 – 3.32 |
| |
Years of education |
72.98 |
1 |
<0.001 |
0.76 |
0.71 – 0.81 |
| Regression 2 |
STin2.10/10 genotype |
8.14 |
1 |
0.004 |
0.38 |
0.20 – 0.74 |
| |
Mood disorders |
6.64 |
1 |
0.010 |
1.98 |
1.18 – 3.34 |
| Years of education | 72.99 | 1 | <0.001 | 0.76 | 0.71 – 0.81 |
OR: odds ratio with 95% CI: 95% confidence interval.