Table 3.

Regressors of the success for smoking cessation determined with simple logistic regression (n = 152). Significance levels p < 0.05 are indicated in bold

Predictor variable	Odds ratio (95% CI)	p
Simple logistic regression for successful cessation
COMT (rs4680) dominant	0.48 (0.22, 1.06)	0.071
COMT (rs4680) additive	0.61 (0.38, 0.98)	0.044
COMT (rs4680) recessive	0.57 (0.27, 1.19)	0.137
MAO-A (rs2235186) dominant	1.47 (0.66, 3.24)	0.343
MAO-A (rs2235186) additive	1.05 (0.71, 1.56)	0.804
MAO-A (rs2235186) recessive	0.87 (0.46 1.68)	0.696
Age (years)	1.08 (1.04, 1.12)	< 0.001
Sex (f/m)	1.89 (0.98, 3.63)	0.056
Disease type (AB/COPD)	0.81 (0.35, 1.85)	0.613
Disease duration (years)	1.00 (0.98, 1.03)	0.82
Education (high school graduate or higher/no high school diploma)	0.37 (0.15, 0.88)	0.024
Number living in household (people)	0.76 (0.59, 0.98)	0.039
Employment (y/n)	1.71 (0.54, 5.35)	0.358
Family status (in relationship/single)	1.70 (0.87, 3.21)	0.118
Smoking years (years)	0.96 (0.94, 0.99)	0.003
Number of smokers among close acquaintance (most smoker or equal number of smokers and nonsmokers/ most nonsmoker)	3.89 (1.79, 8.48)	0.001