Table 4. Indicators of Nicotine Dependence by Country Predicting mFTQ Scores.

Predictors	Thailand	Spain	USA	Russia
Salivary Cotinine (ng/mL)	0.33***	0.40***	-	-
Age of smoking initiation	-	-0.16†	-0.18***	-
Frequency of alcohol use last month	0.21*	-	0.05	0.50**
Frequency of marijuana use last month	0.06	0.06	0.16**	0.26***
Number of cigarettes smoked yesterday	0.42***	0.50***	0.22**	0.49***

Note. Numbers indicate standardized β values from multiple regression models, controlling for age and gender.

^***p<0.001;

^**p<0.01;

^*p<0.05;

^†p<0.1