Table 2.

Bi-variate correlations among variable

	1.	2.	3.	4.	5.	6.	7.	8.
1. Age	1
2. Gender	0.054	1
3. Age of first cigarette	−0.017	−.168*	1
4. Age of regular daily smoking	0.126	−0.056	.443**	1
5. Years as regular daily smoker	.916**	0.082	−.159*	−.200**	1
6. Average cigarettes (as regular daily smoker)	.455**	−0.024	0.020	−0.068	.468**	1
7. Average cigarettes (last week)	.339**	−0.111	−0.017	−0.052	.338**	.677**	1
8. Cigarette Dependence	.419**	0.010	−0.076	−0.074	.448**	.635**	.627**	1
9. Current cannabis use	−.382**	−0.107	0.086	−0.047	−.345**	−0.094	−0.061	−.131*

^*p<0.05;

^**p<0.01.

Bi-variate relations among variables used in the current study.