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 |